SBS Balance System
User’s Guide
with SB-5500 Series Controls
LL-5100 Rev 1.5

Limited Use License Agreement
CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BEFORE OPENING THE
PACKAGE CONTAINING THE PRODUCT AND THE COMPUTER SOFTWARE LICENSEDHEREUNDER. CONNECTING POWER TO THE MICROPROCESSOR CONTROL UNIT INDICATESYOUR ACCEPTANCE OF THESE TERMS AND CONDITIONS. IF YOU DO NOT AGREE WITH THE
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PURCHASED THE PRODUCT WITHIN FIFTEEN DAYS FROM DATE OF PURCHASE AND YOUR
PURCHASE PRICE WILL BE REFUNDED BY THE DEALER. IF THE DEALER FAILS TO REFUNDYOUR PURCHASE PRICE, CONTACT ACCRETECH SBS, INC. IMMEDIATELY AT THE ADDRESSFOLLOWING CONCERNING RETURN ARRANGEMENTS.
Accretech SBS, Inc. provides the hardware and computer software program contained in the
microprocessor control unit. Accretech SBS, Inc. has a valuable proprietary interest in such softwareand related documentation ("Software) and licenses the use of the Software to you pursuant to thefollowing terms and conditions. You assume responsibility for the selection of the product suited toachieve your intended results, and for the installation, use and results obtained.
License Terms and Conditions
a.
b.

c.
d.
e.

You are granted a non-exclusive, perpetual license to use the Software solely on and in conjunction
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User’s Guide and Specification
For theSBS Balance System
Covering Operation of SB-5512 and SB-5532
with Model 5500 series Control Units

External or Internal Balancers



Cable Connected or Non-Contact Balancers

LL- 5100Manual Revision # 1.5
Covers operation with product firmware rev. 0.37
© 2020 Accretech SBS, Inc.

Corporate Offices
2451 NW 28th Avenue
Portland, OR 97210 USA
sales@accretechSBS.com

Tel: +1 503.595.4270
Fax: +1 503.595.4271
https://accretechsbs.com/

SBS Balance System

Benefits of SBS System with SB-5500 Control:■ Increases throughput by saving setup time
■ Improves part quality by automatically balancing to 0.02 micron■ All-digital electronic design increases operating life and reliability■ Easy to install and operate■ Longer life for grinding wheels, dressing wheels and spindle bearing■ Works with existing SBS installations■ Profibus, Ethernet and USB 2.0 communication■ International adaptability: voltage, frequency, communication, and display language■ Four-channel capability reduces costs by permitting balancing of multiple machines■ Backed by world-class SBS customer service

SBS Balance System

Table of Contents
General Instructions ............................................................................................................................ 1
System Purpose .................................................................................................................................................... 1
Operator Safety Summary .................................................................................................................................... 1
System Theory and Connection ........................................................................................................................... 2
Environmental Considerations .............................................................................................................................. 3
Other sources of vibration................................................................................................................................ 3
Machine condition ............................................................................................................................................ 3
System Installation ................................................................................................................................................ 3
External balancer and adaptor ........................................................................................................................ 3
Internal balancers ............................................................................................................................................ 5
Non-contact balancers ..................................................................................................................................... 6
Non-contact sender models .......................................................................................................................... 6
N/C sender installation and alignment .......................................................................................................... 7
SBS control unit ............................................................................................................................................... 7
Vibration sensor location ................................................................................................................................. 7
Control Unit Operating Instructions ....................................................................................................................... 8
IVIS Software Interface .................................................................................................................................... 9
Front panel controls ......................................................................................................................................... 9Power-On display .......................................................................................................................................... 10
SETUP ........................................................................................................................................................... 10
Control unit without front panel connected .................................................................................................... 10
Rear panel connections ................................................................................................................................. 11
Balancer card rear panel connections ........................................................................................................... 11
SB5580 .......................................................................................................................................................... 12

Balancer Operation ............................................................................................................................ 13
Balancer slot status LED ............................................................................................................................... 13
Balancer Main screen elements .................................................................................................................... 13
MENU Settings ................................................................................................................................................... 14
Balance settings ............................................................................................................................................ 14
Vibration units ................................................................................................................................................ 15
Balance speed ............................................................................................................................................... 15
Plot vibration .................................................................................................................................................. 15
Pre-balance ................................................................................................................................................... 15
Card name ..................................................................................................................................................... 15
Menu entry ..................................................................................................................................................... 15
Factory settings ............................................................................................................................................. 16
Critical RPM ................................................................................................................................................... 16
CNC BOT MODE ........................................................................................................................................... 16
Preparing to Set Operating Parameters ............................................................................................................. 17
Background vibration ..................................................................................................................................... 17
Verifying balancer sizing ................................................................................................................................ 17
Setting Operating Parameters ............................................................................................................................ 17
Auto-Balance LIMIT ....................................................................................................................................... 17
Auto-Balance TOLERANCE .......................................................................................................................... 18
Auto-Balance CRITICAL ................................................................................................................................ 18
Vibration display ............................................................................................................................................ 18
Balance speed selection ................................................................................................................................ 18
Automatic Balancing ........................................................................................................................................... 19
Pre-Balancing ..................................................................................................................................................... 19
Prepare for pre-balance ................................................................................................................................. 19
Zero Balancer Weights (0-BAL) .................................................................................................................. 20
Pre-Balance screen elements for single plane .............................................................................................. 20
Pre-Balance screen elements common to 2 planes ...................................................................................... 21
Edit and navigation conventions .................................................................................................................... 21
Pre-balance setup ................................................................................................................................... 22
SBS Balance System

Pre-balance process ................................................................................................................................ 24
Four parts of each pre-balance phase: .......................................................................................................... 24
Trim balance ............................................................................................................................................. 25
History screens....................................................................................................................................... 25
Pre-Balance Steps ......................................................................................................................................... 26
Manual Balancing ............................................................................................................................................... 31
Manual RPM filter .......................................................................................................................................... 31
Plot Vibration ....................................................................................................................................................... 32
Hardwire Interface ............................................................................................................................................... 33
Hardwire interface overview .......................................................................................................................... 33
Input Pin Names and Functions .................................................................................................................... 34
Output Pin Names and Functions .................................................................................................................. 34
Software Interface ............................................................................................................................................... 34
Interfacing ...................................................................................................................................................... 35
Software commands and responses ............................................................................................................. 35
Software operation summary ......................................................................................................................... 37
Profibus DP Interface .......................................................................................................................................... 37
CNC/System Timing Diagram ............................................................................................................................. 38
System Maintenance .......................................................................................................................................... 39
Collector maintenance ................................................................................................................................... 39
SBS return/repair policy ................................................................................................................................. 39
Balancer cable schematic .............................................................................................................................. 40
Sensor cable schematic................................................................................................................................. 40
Trouble Shooting Guide ...................................................................................................................................... 41
Display test option ......................................................................................................................................... 41
Displayed Error Messages .................................................................................................................................. 42
Support................................................................................................................................................................ 45
Appendix A: Specifications ................................................................................................................................. 46
Appendix B: Replacement Parts List .................................................................................................................. 47
Appendix C: Balancer Card Installation .............................................................................................................. 48
Appendix D: System Connection Diagram ......................................................................................................... 49

SBS Balance System

General Instructions
System Purpose
In order for the wheel of a grinding machine to accurately cut, produce smooth surface finishes, and generatecorrect part geometry, it is necessary to prevent vibration in the grinding process. A primary cause ofvibration during grinding is the existence of imbalance in the grinding wheel. This is often due to theheterogeneous nature of the grinding wheel, which contains great numbers of unevenly distributed grains,causing intrinsic imbalance. This imbalance can be compounded by eccentric mounting of the wheel,varying width of the wheel, imbalance in the arbor, and coolant absorption into the wheel. Considering allthese factors, even a carefully established initial balance will not last long. Furthermore, due to wear anddressing, the rotational dynamics of a grinding wheel are always changing. For these reasons, dynamicbalancing of grinding wheels has long been recognized as an important step in the production process.
The SBS Balance System has been developed to provide dynamic balancing for grinding machine operatorswith the following objectives in mind:• Ease and Usefulness of Operation• Maximum Grinding Machine Efficiency• Minimal Installation Requirements• Minimal Maintenance Requirements• Attractive Purchase Price

Operator Safety Summary
This summary contains safety information necessary for operation of the SBS Balance System for grinding
machines. Specific warnings and cautions are found throughout the Operation Manual where they apply, but
may not appear in this summary. Before installing and operating the SBS Balance System, it is necessary toread and understand the entirety of this manual. After reading the Operation Manual, contact Accretech
SBS, Inc. for any additional technical assistance required.
Warning: Observe all safety precautions for operation of your grinding machinery. Do not
operate your equipment beyond safe balance limits.
Warning: Failure to properly attach SBS Balance System components to the grinding
machine spindle, including the proper use of provided adaptor lock screws, will
result in safety hazard during machine operation.
Warning: Never operate a grinding machine without all proper safety guarding in place.
Caution:To avoid equipment damage, make sure the line voltage is within the range
specified for the system (see specification section).

Caution:Only qualified service technicians should attempt to service the SBS Balance
System. To avoid electric shock, do not remove the cover of the Control Unit,or remove cables, with power connected.

SBS Balance System

1System Theory and Connection
The SBS Balance System operates on the principle of mass compensation for any given grinding wheel’s
imbalance. The Intrinsic Imbalance of a grinding wheel is equal to its mass multiplied by “e”, the distance
between the wheel’s center of mass and the wheel’s center of rotation.
Intrinsic
Imbalance= e ( Wheel Mass )Measured
Imbalance

Balance= r ( Weight
Mass )= Center Rotation to Balance Mass

= Center Rotation to Wheel Center of Mass

The imbalance of a grinding wheel is determined in practice by use of the Measured Imbalance of the wheel.
The Measured Imbalance is equal to the product of the mass of an attached balance weight, located tobalance the grinding wheel, multiplied by “r” the distance between that weight’s center of mass and thegrinding wheel’s center of rotation. In both cases, the imbalance is given in terms of a mass multiplied by adistance, with (grams)(centimeters) being the units used for reference by the system.
In order to correct for various and changing
imbalances which occur on a user's grinding
machine, the SBS Balance System uses two
movable weighted masses, which can be
independently positioned to compensate for any
imbalance which is within the specifications of
the system. These weights are located in the
Balancer, and are driven by high torque electrical
motors through a precision gear train.
The balance cycle is complete when the balance
weights are positioned so that minimum vibrationis achieved. The above figures show an unbalanced rotating grinding wheel, with an SBS Balance Systeminstalled. The imbalance is represented by the white dot located on the circumference of the wheel. The two
black dots represent the weights located in the balancer. By incrementally repositioning the weights, a
triangulation is achieved which cancels out the imbalance as shown.
Unbalanced

Balanced

The system consists of the
Input
Motor Drive
SignalBalancer, a Balancer Cable, a
Signals
Vibration Sensor, and the SBS
microprocessor based Control
Unit. Imbalance is expressed as
Balance Control Unit
spindle movement or vibration
detected from the grinding
SensorBalancermachine by the sensor. The
vibration signal from the sensor istransmitted to the control unit, which filters the signal by RPM. When an Auto-balance cycle is initiated, thecontrol unit drives the two balancer weights in the direction that reduces the amplitude of the incoming
vibration signal.

2

SBS Balance System

Environmental Considerations
The SBS Balance System is designed to dynamically correct for the detrimental effects of grinding wheel
imbalance on quality of surface finish, part geometry, as well as wheel and machine bearing life. The systemcannot correct for other environmental problems. This section is intended as a discussion of some common
environmental problems which may influence grinding quality.
Other sources of vibration
A most common source of vibration is adjacent machinery. Grinding machines should be properly isolation
mounted if vibration-producing machinery is operating nearby. Other sources of vibration may becomponents mounted on the machine, such as pumps, motors, drives, etc.
The SBS Balance System may not operate efficiently under the influence of some external vibrations. The
system filters the vibration signal it detects from the grinding machine at the frequency of the spindle RPM.
This means that vibrations occurring at frequencies other than that of the rotating wheel will be ignored by
the system. For adjacent machinery operating at the same frequency, or in phase with that frequency, thesystem will not distinguish between vibrations occurring from wheel imbalance and those originating in theadjacent machine.
An excellent test for environmental vibration is to monitor the vibration level on the grinding machine while
the spindle is not turning. The vibration level should be checked in various locations on the grinding
machine, but in particular at the location the vibration sensor is to be mounted. All surrounding equipment,
including any auxiliary pumps or attachments on the grinding machine should be operating during this test.
The SBS Balance System can help perform this test (see: Background Vibration section), but cannot remove
these vibrations.
Machine condition
Grinding machine condition is an important factor in determining the minimum balance level that the SBS
Balance System can achieve. The spindle should be balanced, as well as all components in the spindle drive
train (i.e. belts, pulleys, motor, etc.). The balance system can be used to readily determine if any significant
imbalance exists in the machine itself. Simply use the same method as described above for checking
environmental vibration, except test with the spindle running and with no wheel mounted. The SBS Balance
System cannot remove vibration resulting from machine condition problems.

System Installation
External balancer and adaptor
The Balancer is mounted to the machine spindle with the provided adaptor. The mounting adaptor is
specifically designed to accommodate a particular machine’s spindle configuration, and varies in design. In
general the adaptor consists of two parts. The Adaptor Nut mounts on the grinding machine, usuallyreplacing the spindle nut of the machine, either on the wheel or pulley end of the spindle. The Adaptor
Flange bolts to the Balancer, and threads onto the installed Adaptor Nut. Appropriate wrenches are supplied
for both parts. Use of a lubricating compound between the Balancer and Mounting Adapter is recommended
to ensure ease of future disassembly.
Lock Screws are a feature of many adaptor designs, where required by high machine speeds or machine
spindle braking. These consist of M6 socket set screws in the face of the Adaptor Nut, and M5 socket set
screws in the outer diameter of the Adaptor Flange. These lock screws should be loosened prior to adapter
removal or disassembly.

SBS Balance System

3

Warning!! - All lock screws must be properly secured each time the Adaptor Nut or Adaptor Flange isinstalled to preventing the assembly from coming loose during operation of the grinder. Screws should be
wrench tight (torque provided by a standard hand wrench, without hammer or other tools).
Follow this assembly procedure to ensure proper mounting of Adaptor Nuts and Flanges were lock screws
are part of the adaptor design:

Mounting
Adaptor Nut

Mounting
AdaptorFlangeExternal
Balancer

Secure all Lock Screws at Each
Installation

1. Loosen all lock screws before assembly. The engagement end of these screws should be below
flush with the face of the adaptor/flange where they exit.
2. Screw the Adaptor nut onto the machine wrench tight, using the supplied wrench.
hammers or wrench extension bars is not advised.

Use of

3. Tighten all the lock screws in the Adaptor Nut wrench tight.
4. Thread the Balancer/adaptor flange assembly onto the mating threads on the Adaptor Nut.
5. Tighten the lock screws in the Adaptor Flange wrench tight
6. All lock screws must be fully loosened before attempting removal of these parts from the machine.
The Balancer must be checked for machine clearances upon installation.
interference between the Balancer/adaptor
assembly and any part of the machine (e.g.
workhead, tailstock), especially with thewheel worn to its smallest diameter. Modify
the machine guarding if needed to provide
clearance from the Balancer.
Machineguarding should be modified to allow therotary junction and cable to extend outside theguard.
The Balancer Cable should be restrained toprevent the cable from being caught up in therotating machine, but should allow for thecable’s removal as necessary during wheelchanges. Optimally, the cable should besecured so that the connector on the Balancer
4

SBS Balance System

Make sure there is no

Modify Machine Guarding
if necessary to clear
Balancer

Secure Balancer Cable
Firmly to Machinepoints down, as shown in the diagram. This position will minimize the chance of fluid or swarf entering theconnector when opened during wheel changes. If heavy wheels are being changed, remove the Balancerfrom the area during wheel changes. Most adapters for larger machines are of a two piece design, whichsimplifies this process. Maintenance Note: SBS Cable connectors are IP67 fluid sealed when closed, but
subject to contamination when open. Care must be taken to clean out the pin area of cable connectors prior
to each re-connection to prevent premature connector failure. SBS recommends the use of an electricalcontact spray lubricant for this purpose.
Pulley End Balancer Mount
Sensor Location
At Wheel End of
SpindleSecure Any
Lock Screws

Previous installation drawings show the standard balancer version with cable connection direct to balancer(SBS slip ring collector), mounted on the wheel end of the grinder spindle. Other balancer installation
options are available including mounting External Balancers to the pulley or drive end of the spindle (wheremachine construction permits). Internal Balancers are available that mount inside an OEM supplied bore
inside the machine spindle. The SBS Non-Contact collector can also be used to eliminate direct cableconnection to the balancer.
Internal balancers
Internal Balancers are designed for mounting inside or internal to the machine spindle. The machine
manufacturer must provide a precision-machined mounting bore as part of the design of the grinder’s spindle
in order to accept an internal balancer. The figure shows an internal balancer mounted in the wheel end of themachine spindle with cable connection to the back side of the spindle. This mounting style is typical,
although other designs are available. Mounting
instructions are provided with each model.
The internal balancer shown is cabled to the SBS
collector, which is mounted separately at the rear endof the spindle. With other versions of the balancer,
the collector can also be mounted at the wheel end of
the spindle, directly attached to the balancer,
eliminating the need for the cable bore down thecenter of the spindle. Both the standard cabledcollector and the SBS non-contact collector areavailable options with internal balancers.

SBS Balance System5

Non-contact balancers
The Non-Contact (N/C) system can be used with both External and Internal Balancers. N/C Balancers
required a different device card (SB-5532) in the control than contact type balancers. Connection to the
Balance Control unit is via a SB-87xx-H cable. The Non-Contact system consists of two parts, the Receiverand the Sender. The Receiver is mounted to a balancer and normally ordered as part of the balancer. N/CBalancers are available with or without a built-in AEMS (Acoustical Emission Monitoring System) sensor.
Non-Contact External Balancers are designated by a –N suffix on the part number, while the same balancer
with a built-in AEMS sensor is designated with a –G.
Non-contact sender models
The Balancer must be paired with a matching type of Sender for proper operation. The Sender is available
with either side exit or back exiting cable connections and with or without AEMS sensor capability. The
AEMS sensor is a high frequency acoustical sensor, designed for use with the SBS AEMS control card. The
AEMS card can be ordered separately and enables the user to monitor the grinding process on the machine,providing Gap Elimination, Crash protection, and dressing and grinding monitoring. Connection to the
AEMS control card in the SBS Control Unit is via a separate SB-41xx-I cable. The available sender options
are shown in the following table.
SB-8650-H – Side Connection

SB-8660-H – Back Connection

SB-8650-I – Side Connection w/ AEMS

SB-8660-I – Back Connection w/ AEMS

6

SBS Balance System

N/C sender installation and alignment
In Non-contact applications the Sender unit must be mounted to a stationary portion of the grinder, e.g. themachine guard. It must be mounted so that the round coil face is opposite the matching receiving coil faceon the Balancer when the balancer is mounted on the grinder.
The customer should create their own mounting method for the application. See SBS provided drawings forcomplete mounting details. The SBS Non-Contact System’s design makes alignment less critical, but for
proper operation, the sender must be located within a maximum distance from the Receiver of 3 mm (face–face), and lined up within a maximum radial offset of 2 mm (center–center).


Distance between faces = 0.120 / 0.020 [3.0 / 0.5mm]

Radial offset = 0.080 [2.0mm] max.

Sender

0.02 [0.5]0.12 [3.0]Non-Contact
Balancer
0.08 [2.0] max.

The Sender can be attached to the machine housing, wheel guard, or other rigid part of the machine by use of
the four mounting hole locations provided. These locations accept either M6 or 1/4'” Socket Head Cap
Screws. Additionally, the outside diameter of the cylindrical portion of the Sender unit can be used as aholding surface for helping to center the Sender relative to the balancer. Attachment to the machine is best
accomplished by a simple bracket of proper dimension to hold the Sender in the required position duringmachine operation. Where necessary, the ability to make final adjustments in distance and alignment of theSender should be provided for in the bracket design. Because mounting requirements are dependent on
individual machine design, and customer preference, the customer should provide the required mounting
bracket. SBS can provide design and fabrication services for customers who so desire.
SBS control unit
The SBS control unit should be mounted in a location allowing observation of the display by the machine
operator. A variety of mounting hardware is available for installation on horizontal surfaces or for rack
mounting. Cabling connections to the control unit include the vibration sensor and balancer cables, thepower cord, and the selected machine controller interface cable (see: System Connection diagram).
Vibration sensor location
The Vibration Sensor can be mounted on the grinding machine using the magnetic mount provided, or
permanent stud mount. The magnetic mount should be used during initial system start up until a good
permanent location is found on the grinding machine for the sensor. The sensor can then be permanently
stud mounted at that location. A machined flat should be supplied at the mounting location when stud
mounting the sensor.
SBS Balance System

7

The location and installation of the sensor are critical for successful operation of the SBS Balance System.
Because of differing machine characteristics, Vibration Sensor location is specific to the machine model.
There are two general principles that should assist in finding a proper sensor location for your grinding
machine.
1.
Locate the Sensor in the same direction as the centerline between the grinding wheel and theworkpiece. The best place to start is a flat machined surface on the spindle housing over the bearing closest
to the wheel and perpendicular to the spindle’s centerline. A vertical mounting surface is preferable on mostcylindrical grinding machines because the sensor is in line with the grinding wheel and the workpiece. For
this same reason on surface grinders and creep feed grinders, a horizontal mounting surface is generally best.
Although the balancer itself may be mounted either on the wheel or pulley end of the machine, the Sensor
should always be aligned at the wheel end of the machine.
2.
Locate the sensor on a rigid part of the machine structure, where vibration from the spindle will
be accurately transmitted. On some machines the wheel guard can be a good location to mount the sensor,
if it is heavy enough and rigidly attached to the spindle housing. The balance system relies on vibration
signals received from the Vibration Sensor to accurately display the current vibration level in peak-to-peakunits, and to balance the grinding wheel. The system employs narrow bandwidth filters that prevent
vibration at non-spindle frequencies from being detected. However, in applications where the motor or othermachine components are running at the same speed or frequency as the spindle, interfering vibrations may
result. Careful experimentation with the sensor’s location minimizes sources of interference.
Sensor Mounted in
Direction of WorkpieceContact

Surface or Creep
Feed Grinders

8

SBS Balance System

Workpiece

Cylindrical orCenterless Grinders

Control Unit Operating Instructions
The following is an overview of the control and interface features of the SBS SB-5500 Control Unit.
IVIS Software Interface
The standard unit is delivered with an LCD display panel and keypad. This manual describes the hardware
panel user interface for this product. IVIS Software from SBS can also be used as the user interface on somemachine CNC systems. All the basic concepts, data presentation, and parameter settings described are alsopresented in the IVIS interface but organized visually with some differences. Read the IVIS Operations
manual in conjunction with this product manual when using the IVIS user interface.
Front panel controls

1

5

2

3

4

The figure above illustrates the controls and indicators on the front panel of the Balance Control Unit. The
following is a description of these features:
1) ON/OFF. This button turns on the operating power for the system. When the system is turned on theunit initiates a Power-On Display, and the green LED to the left of the button will be illuminated. When
turned OFF the unit is in the stand-by mode, and the green LED is blinking. This indicates power isconnected to the unit, but the control is inactive.
2) CANCEL BUTTON. Pressing this button will cancel the operation in progress, or the last selection or
entry made. Also clears any displayed error message.
3) LCD DISPLAY. The display is not a touch screen. Do not press on the display screen. The screen
is used to display data and assign functions to the function buttons.
4) FUNCTION BUTTONS. Operation of the Control unit is accomplished via the four function buttons to
the right of the display. The menu bar area of the display, to the left of these buttons, assigns the current
function to each button. Use these buttons to make all operational selections.
5) SLOT STATUS LED. A three-color LED on the left side of the display shows the operational status of
the balancer card or other device cards installed in each of the four corresponding card slots.
SBS Balance System

9Power-On display
The Front Panel of the control can be removed and remotely mounted using a SB-43xx series cable. Whenswitched on in either configuration the Control Unit performs self-analysis which defines its status, and thesetting of operating parameters. Operator information is then shown on the LCD display following thestartup sequence described below:
1)

The company logo screen is displayed and lights on the front panel are illuminated to verify theiroperation. During this short time, the SETUP button is available. Pressing this button will enter
setup mode for the control.

2)After four seconds, the unit displays information about each balancer or device card installed,
indicating type of device and identifying information. To extend the time that this information isdisplayed, press any one of the function buttons while the slot information is on the screen. Eachbutton press will add six seconds to the display time, giving additional time to read the information.

3)

After two more seconds, the unit displays the initial operational screen for the control unit. The unit
will display either the SHOW ALL monitor screen, or one card slot’s main operating screen,
whichever was selected when the unit was last switched off.

4)

Any error conditions detected by the self-analysis are displayed as “ERROR - code” where code lists
the reference code of the error detected. For detailed description of error codes, see the “Displayed
Error Messages” section of this manual, or additional product instruction addendum manuals.

SETUP
At Power-on, press the SETUP button to enter this mode. The Setup screens allow the user to select:
1. Operational language
2. Ethernet settings
3. Profibus Station ID (if installed)
While in Setup mode:Press ENTER to save current settings on the screen and/or proceed to the next Setup screen
Press CANCEL to cancel unsaved settings on the screen and/or proceed to the next screen
Press START to cancel unsaved settings, exit Setup mode, and start operation.

The first Setup screen selects the language used by the control. Use the arrow buttons to scroll through theavailable languages. The second Setup screen allows Ethernet settings. Manual settings can be made or
DHCP can be enabled for automatic assignment. Use the arrow buttons to scroll through all the available
Ethernet settings and use the up and down arrows to change digits.
If Profibus is installed, the third screen allows selection of Station ID and other items. For more information
see the Profibus manual available at https://accretechsbs.com/.
Control unit without front panel connected
The control unit can be operated without a user interface attached, providing the monitoring functions via the
CNC, Profibus, and Software Interface. The user interface is only required for setting all parameters.
10 SBS Balance System

Rear panel connections
The following figure shows the rear of the control. The following connections are located on the rear panelof the Control Unit, and are common to any cards installed in the control.

1)

POWER SUPPLY. Connection for line power input (AC input model shown)
Caution: Before applying power to the Control, make sure the supply voltage is within
specified range.
AC Input Models: 100-120V AC, 200-240V AC, 50-60 Hz
DC Input Models: 21 VDC to 28 VDC. 5.5A max at 21 VDC.
2)FUSE HOLDER. Contains the line fuses. AC Input Controls use (2) 5x20 3A time lag, DC Input
Controls use (1) 5x20 6.3A.
3)
ETHERNET. Provides TCP/IP or UDP connection to host device, such as CNC Controller or IVIS.
4)USB CONTROLLER. Allows USB flash drive to be connected for Firmware update. Latest
firmware for the control and update instructions are available on the SBS website.
5)
USB DEVICE. Provides connection to another USB 2.0 host, such as a CNC Control.
6)
PROFIBUS. Provides connection to Profibus DP host device, such as CNC Control (option).
7)
REMOTE. This DB-15 connector receptacle is a duplicate of the connector on the font side of thebox, used to connect the optional cable for remote front panel installation.
S1-S4 DEVICE SLOTS. Numbered Slots are available for installation of balancer cards or other device
cards supplied by SBS. Unused Slots are covered with blank panels.
Balancer card rear panel connections
The control comes standard with one card, and others can be purchased and added to the control unit asrequired. Each device card has three connections on the rear panel of the control, which are common to any
installed cards of the same model.
9a)
9b)
9c)

BALANCE CONNECTION. Connects to the Balancer Cable (12-pin SB5512, 8-pin SB5532).
SENSOR CONNECTION. Connects to the Vibration Sensor.
HARDWIRE INTERFACE. Standard DB-25 connector for connecting the individual balancer cardin the control to a grinding machine controller. A complete description of this interface is given in
the “Hardwire Interface” section.
SBS Balance System 11

SB5580
The SB-5580 is a smaller chassis version of the SB-5500 control series, which has been designed for the
space constraints of mounting inside the electrical cabinet of the grinding machine. It supports four device
cards of the same series (S1-S4), and requires power input of 24 VDC, with the same specification as SB5500. The panel connectors are the same and are labeled in the same way as SB-5500 above, except for the
USB DEVICE connector which is located on the bottom of the control instead of the back panel.
A 3-slot version is available and both sizes are also available in a Profinet configuration. For the Profinet,
connection 3 is maintained for the standard Ethernet communications and connection 6 is changed to an
Ethernet connector for the Profinet communication. See the Profibus manual.

SB-5575 – 3 slot version
Profinet configurations:SB-5576 – 3 slots
SB-5581 – 4 slots
SB-5580 – 4 slots

12 SBS Balance System

Balancer Operation
Balancer slot status LED
The status indication for installed Balancer card is as follow:
BALANCE ABOVE CRITICAL. The LED is lit RED when the measured vibration is above the user
set CRITICAL limit, or if the RPM level exceeds the user set Critical Max. RPM limit. The LED will
blink while the system is performing an auto-balance.
BALANCE ABOVE TOLERANCE. The LED is lit YELLOW when the measured vibration is above
the TOLERANCE level selected by the user. The LED will blink while the system is performing an autobalance.
BALANCE BELOW TOLERANCE. The LED is lit GREEN when the measured vibration is at or
below the selected TOLERANCE level. The LED will blink while the system is performing an autobalance.
Balancer Main screen elements
The following elements are displayed on the balancer card Main screen.
f

g

a

e
d
c

b

a) MENU BAR. The right side of the display is used to assign current functions to the four corresponding
Function Buttons to the right of the display. An animated hourglass appears in this display area during
the balance and plotting cycles to indicate progress.
Function Buttons are defined as follows for the main screen of each balancer card. See Function Button
Map for an overview.
MENU – Pressing this button displays a menu listing with selectable operating parameters and otherfunctions for the control unit.
SHOW ALL – Displays the status of all balancer or other installed cards on one screen.
Pressing CANCEL from the SHOW ALL screen will display a “System Status” screen showing all
current Ethernet settings for the control. Pressing any button from this screen will then display a“Firmware Versions” screen showing version details of all installed devices in the control unit. Pressing
any button from this screen will return to the SHOW ALL screen.

SBS Balance System 13

MAN. – Enters Manual Balance mode allowing manual movement of the two weighted masses in the
Balancer (M1 or M2). Each mass can be moved in either direction using the forward and reverse arrows.
These arrow buttons are available only in Manual Balance mode.
AUTO - Initiates an auto-balance cycle. Pressing CANCEL will halt the auto-balance cycle. (see:Automatic Balancing section).
b) VIBRATION DISPLAY. Indicates the measured vibration level of the grinding machine in either
microns or mils displacement, or in millimeters/second or mils/second velocity. Displayed units are
selectable from the Menu.
c) STATUS. Indicates the current status of the selected balancer card.
d) SCREEN TAB. Tabs are shown on the left side of the display for each installed device card. The open
tab indicates which device card is currently selected. In the figure the card in device slot #1 is selected,
and a closed tab indicates another card installed in slot#2. These tabs align with the four device card
status LEDs to the left of the display.
e) RPM DISPLAY. Displays Spindle RPM measured by the balancer. The display also indicates RPM
frequency during a Manual Filter vibration test.
f) IDENTIFICATION TAG. The upper edge of the display identifies the user selectable name of thedevice card currently selected, and the current position in the menu structure.
g) BAR GRAPH. The bar graph shows the measured vibration level compared with the LIMIT,TOLERANCE, and CRITICAL levels.

MENU Settings
Note: All menu items are set independently for each installed balancer card, or other device.
Press the MENU button to display the menu items detailed below. The menu provides access to systemsettings for individual balancer cards, and to perform certain optional functions. Use the up and downarrows buttons to move through the menu items. Press ENTER to access the selected menu item. Press
EXIT or CANCEL to exit the Menu and return to the Main Screen for the card.
Balance settings
Use the backward arrow button to move the cursor from one digit to the next. Use the up and down arrow
buttons to increase or decrease the value of the selected digit. Press the ENTER button to save any changes
and move to the next balance setting. Pressing CANCEL will return to the Menu. Each of the following
three balance settings are presented consecutively.


LIMIT target level. This is the lower limit that the balancer will try to achieve during an Autobalance cycle. This value should be set 0.2 microns higher than the background vibration level.

TOLERANCE level. This level sets the high end of the acceptable balance range. When thislevel is exceeded a Balance Out of Tolerance (BOT) error condition is reported. This error
signals the operator or machine controller to re-balance the machine. This level needs to be
determined by process considerations. It should rarely be less than 1 micron above the Limit.



CRITICAL level. This level can be set at a value providing a secondary warning of extreme outof balance condition that may be damaging to the grinding machine or process. When this levelis exceeded a Critical Balance out of Tolerance (BOT2) error is reported. This signals theoperator or machine controller to shut down the machine. This same error can also be triggeredby excessive RPM (see: Critical RPM).

14 SBS Balance SystemVibration units
Press the corresponding button to select from the available vibration units. Select from displacement orvelocity, as well as english or metric units. The currently selected units are highlighted on the screen. Onceselected, the display changes allowing the up and down arrows to be used to set the resolution. Press
ENTER to save the selection. Changing vibration units between metric and english will convert thenumerical value set for the Limit, Tolerance, or Critical Levels. Caution - Changing between displacement
and velocity units will not change these numerical values, as no direct conversion is possible. In this case theuser must review and edit the limit settings to an appropriate number.
Balance speed
This setting will affect the time taken to perform an Auto-balance cycle. Normal is the correct setting formost applications. Factory default is Cautious, to ensure successful balance on all machines.


CAUTIOUS – Setting 1. This setting controls the balance weights in a slower progressive balance
mode. It is most useful on high speed grinders, or other machines where slight movement of thebalance weights produces dramatic change in vibration level.



AGGRESSIVE – Setting 2. This setting operates the balancer in the fastest balancing mode. It is
most useful on machines with slow speeds and large wheels.



NORMAL – Setting 3. This setting uses a combination of a fast balancing routine until the vibrationlevel reaches 1.0 micron, then switching automatically to a slower routine for accurate balancing.

Plot vibration
This function allows the user to perform a vibration spectrum sweep in a selected RPM range. The operation
takes 10-20 seconds. It generates an on-screen graphical representation of the amplitude of vibration
monitored at each RPM range in the form of a bar graph. It also produces a text listing of the top twenty
vibration peaks encountered during the spectrum sweep. See the “Plot Vibration” section for operational
details.
Pre-balance
The pre-balance function provides a step by step process which assists the machine operator in placing
manual balancing weights on the grinding machine, in correct position to achieve a rough balance. Thisfeature can be useful upon installation of new wheels, or whenever the wheel imbalance exceeds the balance
capacity of the automatic balancer. By pre-balancing, the majority of the wheel imbalance is removed,
allowing the balance system to perform final trim balancing and to maintain balance as the wheel wears. See
the “Pre-Balance” section for operational details.
Card name
A user selectable name or label is used on screen to identify each balancer card. When no name is assignedby the user, SLOT# is default name assigned for screen display, where “#” is the number (1-4) of the slot
where the card is installed.
Menu entry
This selection enables a lock out of front panel menu access using a standard security code. Setting theprotected mode denies access to the menu unless the access code is entered. This ensures that systemsettings will not be accidentally compromised. The screen displays “ENABLED” when Menu access is
unlocked, and “PROTECTED” when menu access is controlled by the access code. The standard accesscode is 232123. Once the code has been entered and the ENTER button has been pressed, the MENU
selection is protected. Access to the menu will now require entry of this code. The message MENUACCESS PROTECTED will be displayed notifying the user that the menu is password protected, and the
SBS Balance System 15

user will be given the opportunity to enter the code. Entering a code other than the correct number willproduce a message INCORRECT CODE ENTERED TRY AGAIN/ CANCEL.
To disable menu protection, select MENU ENTRY, and enter the same code to turn off protection. The
display for MENU ENTRY will display ENABLED when protection has been disabled.
Factory settings
Returns user selectable parameters under the BALANCE SETTINGS menu to the default factory defaults,changes BALANCE SPEED to CAUTIOUS, and sets CRITICAL RPM back to 0.
Critical RPM
These two screens allow the user to set both a Max. RPM limit and a Min. RPM limit. If machine RPM rises
above the Max. limit or falls below the Min. limit, the Balance Control will indicate an error condition as
described below.
1) The SLOT STATUS LED will illuminate RED if the Max. RPM limit is exceeded.
2) Both the BOT and BOT2 outputs will be active if the Max. RPM limit is exceeded.
3) BOT2 will be active and BOT inactive if the machine RPM falls below the Min. RPM limit.
4) Main Operating Screen will indicate out of limit RPM icons,or.

These limits are both alternate causes of the BOT2 output being active (see Balance Critical). The BOT2
output can be monitored by the machine controller, and if desired can be used to set off additional warnings
or interrupt the operation of the grinding machine. To set either limit, use the left arrow button to selectdigits, and the up and down arrow buttons to change the selected digit. Press ENTER to save the setting andreturn to other screens. To disable either Critical RPM limit, simply reduce the limit setting to zero.
CNC BOT MODE
This selection controls the behavior of both the BOT (Balance out of Tolerance) and BOT2 (Critical
Tolerance) solid state relays during Auto balance Cycles. When set to “INACTIVE (SB-2500)” both theserelays are open and not operational during a balance cycle, except when a Critical RPM error is detected.
This behavior matches the SB-2500 and default for SB-4500 series of controls. When set to “ACTIVE(HK-5000)” both these relays are operational during a balance cycle. Each solid state relay will be closed if
the vibration level exceeds its set limits (see CNC/ System Timing Diagram).

16 SBS Balance System

Preparing to Set Operating Parameters
Ensure you fully understand the function and operation of the Control’s front display panel as
described in previous sections, before attempting the following operations.
Background vibration
A check of the background vibration level must be performed, to correctly set up the system.
Mount the Vibration Sensor in the position to be used during operation (see: Vibration Sensor Location
section). Install the Balancer, Control, and all cables as indicated in the installation section of the manual
before powering on the Control. Leave the grinding machine off, press the MAN. Button and use the arrow
buttons to manually set the vibration filter to the operational RPM of the grinding machine. Note thismeasured ambient vibration level without the machine running.
Turn on all secondary machine systems (such as hydraulics and motors), but leave the machine spindle
turned off. The vibration level displayed without the spindle running is the background vibration level forthe machine. Note this background vibration level for future reference in setting the operating parameters of
the system. Refer to the “Environmental Considerations” section for explanation of possible sources ofbackground vibration.
Verifying balancer sizing
Using the manual motor buttons (the left and right arrow buttons marked M1 and M2), rotate the masses in
the Balancer while the machine is operating at speed. By running each of the two weights in opposite
directions, the operator should be able to introduce more than three microns of vibration in the grinding
machine, but not more than thirty microns. If results do not fall within this range, it may be a sign that theBalancer needs to be re-sized for your application. Contact your SBS Balance System provider for
consultation. In the interim, do not allow the grinder to operate for extended periods with high vibrationlevels.

Setting Operating Parameters
This section details the menu selected operating parameters of thecontrol. For control units with more than one balancer card installed,
the user should select the desired card and then enter the MENU.

MEASUREDVIBRATIONLEVELSNEW WHEELCRITICAL

The operating parameters are independently set for each card.
Auto-Balance LIMITThe SBS Balance System will automatically balance to a user
specified low-limit of vibration, the Auto-Balance LIMIT. The Limit
OPERATING
represents the best balance achievable in an auto-balance cycle. It is
RANGE
factory set at 0.4 microns displacement. A balance Limit of 1.0
micron or less is generally considered adequate for most applications.
0.2 MICRONS
The Limit should be set at least 0.2 microns higher than the highest
background vibration level noted in the “Preparing to Set Operating
Parameters” section. The lower the Limit is set, the longer thesystem will require to achieve balance. Some experience may benecessary to determine the appropriate auto-balance Limit for a particular installation.

TOLERANCELIMIT
BACKGROUNDNO BALANCE SYSTEM IS CAPABLE OF BALANCING THE GRINDING WHEEL TO A VALUEBELOW THE BACKGROUND LEVEL. Trying to set the balance Limit below background levels will
result in long or failed balance cycles. Since the background vibration level is often a product of floor
SBS Balance System 17

transmitted vibrations, these levels may change as adjacent machines are put into or out of service. Set thebalance Limit during periods when the system will receive the maximum floor transmitted vibration.
To set the Limit, select BALANCE SETTINGS from the menu. The Limit is set using the arrow buttons,
followed by pressing ENTER. Note: Velocity units may be selected for monitoring machine vibration;
however the Limit setting can only be made in units of displacement.
Auto-Balance TOLERANCE
This operator defined setting establishes an upper-limit for normal process vibration for the system. Whenreached, this setting will cause an indication of the need to perform an auto-balance. Indications given on thefront panel for balance status are shown in the following table, and additional indication is given via. both the
Hardwire and Software Interfaces. The Tolerance level must be set at least 0.2 microns above the LIMIT
setting. Typically it is set at least 1 micron above LIMIT setting.
Vibration Level

Slot Status LED

Bar Graph

Status Message

Below TOLERANCE

Green

Green

BALANCED

Above TOLERANCE

Yellow

Yellow

NEEDS BALANCE

Above CRITICAL

Red

Red

CRITICAL

Auto-Balance CRITICALThis operator defined setting establishes an operational upper safety limit of vibration for the system. Whenreached, this setting will cause an indication of the critical need to perform a re-balance operation. This
indication on the front panel is shown in the above table, and additional indication is given via. both the
Hardwire and Software Interfaces. The Critical level must be set at least 2.0 microns above the
TOLERANCE setting.
Vibration display
The units used by the Control Unit to display machine vibration levels are selectable between metric or
English units. The Control Unit can also display vibration in terms of velocity or displacement. The factory
setting of displacement most directly reflects the movement of the grinding wheel and therefore impact ofvibration on the work piece. Use the VIBRATION UNITS Menu item to select the desired option.
Balance speed selection
This Menu setting toggles the Control Unit’s auto-balance response between three settings. The purpose ofthis adjustment is to maximize the speed and accuracy of the SBS Balance System when installed on various
types and sizes of grinders.
To determine the correct setting for balance speed, it is necessary to observe the operation of the system on
its first few balances. With the system installed on the grinding machine, and the machine running, initiate
an Auto-Balance cycle. Check to see that the system makes steady and timely progress to a balance point.
Unbalance the system two or three times, using the buttons located on the Manual screen (MAN.). Eachtime initiate an Auto-Balance and check the results. Then select each of the other speed settings and run twoor three more tests. An error message “Error I” displayed during this test indicates that the PULSE setting
should be reset to a slower setting” (see: Displayed Error Messages section). This quick check will give aclear indication of the proper setting. Your SBS Balance System is now “tuned” to your grinding machine.

18 SBS Balance System

Automatic Balancing
Once all operating parameters are set, the SBS Control Unit is ready to perform automatic balance cycles,
which are initiated by pressing the AUTO button or by a Start Balance command via the Hardwire or
Software interfaces. It is important to understand that Auto-Balance is an automatic cycle that is initiated by
the user, performs according to the set operating parameters, and then ends. Between balance cycles, thesystem will report vibration levels and RPM, but will not self-initiate an Auto-Balance cycle.
Auto-Balance should be performed with the machine running, and coolant flowing. Auto-Balance should
not be performed while the wheel is in contact with the workpiece or dresser. The process of grinding,dressing, or moving the wheel can all introduce vibrations into the machine which are unrelated to wheelbalance. Attempting to balance during such processes will not work, and will have detrimental effect on thegrinding or dressing results. (see: CNC/ System Timing Diagram)

Pre-Balancing
Prepare for pre-balancePre-balancing is used to initially balance the grinder by manually positioning balance weights on thegrinding wheel. In some applications (especially for large wheels), the Balancer may not have enoughcapacity to balance a new wheel with extreme imbalance. In such cases, the SBS Balance system can aid in
positioning manual balancing weights to compensate for the majority of the wheel’s imbalance. Automaticbalancing can then be used to provide balance control until the next wheel change.
1. Before balancing can be performed, the machine must be fitted to allow the user to manually position
balancing weights on the machine conveniently. This can be accomplished in any of the methods
described under the “Balance Type” setting description.
2. Each of the balance weights should be marked with a center line (center of mass) indication. Thiscenterline is to be used to position each balance weight against the angle scale on the machine. Fixedmass weights to be used should be labeled 1, 2, 3, etc. to identify them individually.
3. An accurate angle scale must exist on the grinder which references the position of the balance weights.
The scale accuracy and resolution will determine how accurately the balance weights can be placed,
which will determine how well the machine can be balanced. SBS can provide angle scales for users
which lack one. Contact your SBS representative for details
Before pre-balancing, it is important to first minimize the Balancer’s effect on machine balance, so only the
new wheel’s native imbalance will be corrected for in the Pre-balance operation. With the old wheel
removed from the machine and before the new wheel is installed, the grinder should be re-started and abalance cycle performed. This will move the balance weights in the balancer to a null position 180 degrees
apart. Stop the machine after the cycle is complete, install the new wheel, and then proceed with prebalance. Skipping this step will limit the effective balance range of the system in subsequent auto-balancecycles.

SBS Balance System 19

Zero Balancer Weights (0-BAL)
This option is only available on special Non-Contact Balancers which have the “Zero Weights” option
installed. Instead of running a balance cycle prior to installing a new wheel the user may select this option toautomatically move the balance weights in the Balancer to the null position (180 degrees apart). When thisoption is selected, the “STOP SPINDLE” text will flash, and the START button will not display until thespindle is stopped. After pressing START, the second screen below is displayed while the balancer weights
are positioned.

0-BAL stop spindle

0-BAL move weights

Begin the pre-balance operation by choosing “Pre-Balance” from the menu. The Pre-balance screen will be
displayed, allowing the user to select the following options.
This is the Pre-balance screen. The first screen shows the display in single plane balance mode, and thesecond shows the display in 2-plane balance mode. The first group of screen elements shown are specific toa single balance plane, and are duplicated in the 2-plane view.
6

10

9

8

7

1
2

3

4

5

Pre-Balance screen elements for single plane
1. Vibration level indication. Vibration values will not display if there is a vibration sensor error (missing
or shorted), or if there is no RPM value displayed. To the right of the vibration display, two Balance
conditions will be indicated when they occur:a.

- Tolerance Level exceeded (yellow color). The symbol will flash in yellow if the vibration level
rises over the user selected Balance Tolerance limit.

b.

- Critical Balance exceeded (yellow color). The symbol will flash in yellow if the vibration level
rises over the user selected Critical Balance level.

2. Vibration bar graph. Shows the current vibration level graphically. The scale is linear between thecurrent settings for Balance Limit and Balance Tolerance. A different linear scale applies between the
Balance Tolerance level and the Critical Balance level.
20 SBS Balance System

3.

Balance Limit. This fixed position on the graph indicates the current level set for the Balance Limit,
relative to the measured vibration level.

4.

Balance Tolerance. This fixed position on the graph indicates the current level set for the Balance
Tolerance, relative to the measured vibration level.

5.

Critical Balance Level. This fixed position on the graph indicates the current level set for the Critical
Balance, relative to the measured vibration level.

6.

Slot Number. Identifies the balancer plane using the card slot number (1-4) in the SB-5500. Note: fordual plane operation slots 1 and 2 must be paired, or slots 3 and 4 must be paired. The currently selected
and active slot shows the sensor symbol with slot number displayed in green color. To select an alternatebalance plane (slot number), use the Show All screen.

Pre-Balance screen elements common to 2 planes
7. RPM indication. RPM values will not display if there is no incoming signal (spindle is stopped, or RPM
sensor is missing or shorted). A manual RPM value can be set if needed (see Manual RPM Setup)
8. RPM Error indication. Displays one of following icons to indicate RPM error conditions:a.

- (red color) Critical RPM exceeded. The symbol will display and flash if the RPM level is over
the Critical RPM user setting.

b.

- (red color) RPM Minimum not met. The Symbol will display and flash if the RPM level isbelow the Minimum RPM user setting.

c.

9.

10.

- (yellow color) No RPM signal from sensor is present.

d.

- (yellow color) RPM above operation limit. The symbol will display and flash when the RPM
detected is above the maximum operational limit of 30,000 RPM.

e.

- (yellow color) RPM below operation limit. The symbol will display and flash when the RPM
detected is below the minimum operational limit of 300 RPM.
- Front Panel Inhibit (FPI) is active (see FPI under hardwire interface).

- This symbol shows an existing error condition (see Error conditions), and is displayed with theletter code of the corresponding error(s).

Edit and navigation conventions
The following shows the conventions in operation throughout the pre-balance menus.


A yellow outline is used to indicate which option is currently selected. Most settings are represented bysymbols that indicate the available options for that setting. Some settings require a number to be set.



Current saved settings are shown as either a symbol highlighted with a white background, or by thedisplayed number for the setting.



Use the arrow keys to move from one setting to the next. The yellow outline will indicate the current
selection.

Press the OK button to activate the selected option. Press

Cancel to exit.

SBS Balance System 21

When in edit mode:A yellow highlighted background is used to show the current item or number being edited.



The OK symbol will flash in yellow at the left side of the screen whenever the current selection isdifferent than saved settings. This indicates that pressing OK is required to save the new current settings.
Press OK to save changes or press
Cancel to discard changes made and revert to the previous data.

The Arrow buttons are used to make selections from available options, and also to make edit numbers.
Where a number needs to be entered, thebutton is used to select the digit to be changed (move theunderline). The
buttons increment or decrement the number at the underlined digit. Holding thearrow button will start an accelerating repetition of the button press.



Press

to exit Pre-balance and return to the Auto-Balance Main Screen.

Pre-balance setup
There are a number of user selectable operating settings for the pre-balance function, which are found underthebutton on the pre-balance screen. Press the
button on the pre-balance screen to enter this menu.
The Setup menu will time out after 1 minute of inactivity and the unit will return to the pre-balance screen
without saving any changes. The hardwire interface output relays remain active during setup.

Each of the following settings is presented in order under the setup menu.
Provides access to all the MENU settings for the selectedbalance plane.

22 SBS Balance System

Balance Type. Each type describes the method of balancing
weight attachment to be used on the machine to performbalancing.
Circumferential Weight – One weight of variable mass is
positioned at a distance around the circumference of a rotor.
Single Weight – One weight of variable mass is positioned
at an angle.
Two Weights – Two equal, fixed mass weights are
positioned at variable angle positions.
Three Weights – Three equal, fixed mass weights are
positioned at variable angle positions.
Fixed Positions – A specified number of mounting positionsin an equally spaced fixed pattern (such as a bolt circle) areavailable for adding variable mass weights.
Table of Weights – User specified available weights(usually screws of different length and mass) are listed in a table,
and these weights are then used to determine a best balance.
If Fixed Position Balance Type is selected, then the right side ofthis selection is editable. This setting allows for editing thenumber of available fixed weight attachment positions (from 3 to99). The positions are assumed to be evenly spaced in a 360
degree pattern. They must be labeled in order on the machinefrom 1 to the highest number available.
If Table of Weights Balance Type is selected, then the table icon
is also displayed. In this mode the number can be selected to edit
the number of weight attachment positions, or the table icon canbe selected to allow editing of the weight table.
If Circumferential Weight Balance Type is selected, then the left
side of this selection is editable. This allows for editing thecircumference of the rotor on the machine, around which theuser will measure the distance to place a balance weight.
When edit of the table of weights is selected, a table of available
weight values and corresponding user assigned weight ID names ispresented.
Press up/down arrows to select an item (select either units at top ora table value) to edit and press OK to edit the selected value. Edit ofa table value is always followed by the edit of the corresponding ID
name (even after pressing cancel). Press OK or Cancel to be exit thetable edit mode.
The weights are always sorted in the table by value.
Duplicate value entries are deleted without prompt.
Set a value to zero to delete the weight.
Add a new value at the end of the list (the list is full at 15).
Duplicate ID names are allowed.
SBS Balance System 23

Scale Direction. This sets the direction of the scale used toposition the pre-balance weights relative to the wheel’s directionof rotation.
The weight scale direction is the direction in which the angle
references (0°, 90°, 180° etc.) or the weight position location
numbers (1,2,3,4, etc.) increase.

Spindle rotation is in the same direction as theweight scale.
Spindle rotation is in the opposite direction as theweight scale.
Balance Limit. This is the same setting as AUTO BALANCE
LIMIT. The low vibration level where the balance process is
considered to be finished.
Zero Balance. Performs a null position (180 degree apart) of thebalancer weights. Available only on special non-contact
mechanical balancers which have the “Zero Weights” option
installed.
Pre-balance process
Pressfrom the pre-balance screen to start a complete pre-balance operation. There are a minimum of
three phases for each balancing cycle:
1. Initial Phase. The vibration level is measured and saved.
2. Test Phase. A test weight placed on the machine so its effect can be measured.
3. Solution Phase. The balancing solution is provided. The correction weight is placed on themachine & the results are measured.
If the resulting vibration is below the Balance Limit
the balance process will complete and exit to themain screen. If the resulting vibration is above the Balance Limit, a new balance solution will be provided tocorrect for the residual unbalance. Every subsequent balance solution is a Trim Phase. A Trim phase is justan iteration of the Solution Phase, performed if more adjustment is needed.
Four parts of each pre-balance phase:
Weight placement in format specific tobalance solution type

Plane number indicator
Manual RPM

Single point weight solution

Phase number
1 = Initial
2 = Test
3 = Solution
4+ = Trim

Edit Weights

Back Arrow
Next Arrowa. Stop spindle. The control indicates that the spindle needs to stop.
b. Apply weights. Once stopped the operator must configure the weights as instructed.
24 SBS Balance System

c. Start Spindle. The spindle must be started.
d. Measure. The vibration can be measured for calculating the next phase.
This information is remembered through a power cycle. The hardwire interface output relays will remain
active during the balance operation. Except where noted, theCancel button will stop the balance
operation and return to the main screen.
Trim balance
Press thebutton from the pre-balance screen to start a Trim Balance operation. This skips the Initial andTest phases of the operation and starts at the Solution phase. This option is available only if the SBS System
has saved results from a previously completed Initial phase and Test phase.
The first two phases of the pre-balance cycle (Initial and Test) allow the SBS System to determine and saveessential information regarding the condition of the grinder and how changes in balance weights will effectmachine balance. Assuming the conditions on the machine do not change (RPM, wheel size, etc.) thensubsequent balance operations can be successfully performed without re-running these two phases. If
machine conditions do change, then performing balance operations based on the saved results of the Initial
and Test phases will produce inaccurate results.

Trim balancing can be performed at any time that vibration levels rise above a satisfactory balance condition.
Balancing Problems - If successive Trim balance attempts are unsuccessful, this is an indication that either
machine conditions have changed, or an error has occurred in weight placement (inaccurate position(s) ormass changes). In this case the operator should verify the Scale Direction setting is still accurate, then press
to start a new complete Manual Balance operation.
Important - Performing a Pre-Balance will only be successful if the user is very careful in following eachstep of the process, and making certain that weight movements and additions are performed accurately. Boththe mass of weight used and the positioning of weights used will determine the accuracy of the balanceachieved.
History screens
The History screens allow the user to view previously completed phases in the pre-balance process, and evento perform again one of these previous steps. Press the
key to access the history screens. When viewing
the history screens, a large “H” is displayed at the upper right. The use theandbuttons to step
backward or forward thru the balance phases (note the phase number display). The
button will be
displayed when it is possible to repeat the operation of a particular balance phase (any phase 3 or higher).

SBS Balance System 25

Pre-Balance Steps
InitialStop Spindle - This screen requests the operator to stop thespindle. The
Stop Spindle icon flashes as a reminder.
This screen stays until the control detects that the spindle
rotation has stopped.

InitialApply Weights - Once the spindle is stopped, this screen
shows the operator how to place the weight. During theInitial Phase there should be no weight placed on themachine, or 2 or 3 variable angle weights should be moved
to null positions as directed.
Press

to indicate that the machine is ready.
InitialStart Spindle - This screen prompts you to start the spindle
so a vibration measurement can be taken. The
icon andthe “RPM” both flash as a reminder. The control stays on
this screen until it senses the spindle is up to constant speed.
Then the screen advances to the Measure screen.
The Back arrow on the screen indicates that pressing
will access the history screens.
InitialMeasure Vibration - Once the rpm has stabilized, the Next
arrow will appear on the screen and flash. Pressing
will store this measurement into memory.
The Back arrow on the screen indicates that pressing
will access the history screens.
Test

Stop Spindle - The
Stop Spindle icon flashes as areminder to stop the spindle.

26 SBS Balance System

Test

Apply Weights - The test weight shown on
the screen must be added at the zero position. The valueof the test weight is shown.
During the Test Phase pressing the Edit Button(noteicon) will display this screen,allowing the test weight mass value to be edited.
The weight units can also be selected from g, oz,lb, kg, and none.

When done editing press OK to save changes andreturn to the Apply Weights screen.
Apply Weights - Once the spindle is stopped, thisscreen shows the operator where to position the weights.
During this phase, one weight should be placed at the zero
position or all weights moved to the positions shown.
Screens shown are for 3-weight balance, but the sameprocess applies to 2-weight balance.
Press

to indicate that the machine is ready.
Test

Start Spindle - The
icon and the “RPM” both flash as areminder to start the spindle again.
The Back arrow on the screen indicates that pressing
will access the history screens.

Test

Measure Vibration - Once the rpm has stabilized, the next
arrow will appear on the screen and flash. Pressing
will store this measurement into memory.
The Back arrow on the screen indicates that pressing
will access the history screens.

SBS Balance System 27

Solution

Stop Spindle - The
Stop Spindle icon flashes as areminder to stop the spindle.

Solution

Apply Weights - The weight should be changed
to the position and mass shown to bring the balance to aminimum.
Place balance weights on same radius as the test weight.
There are two ways to display the solution:
Additive Weight Solution (+)

Additive Solution (+)
Leave all existing weights on
the machine and only add whatis shown.
Absolute Solution ( = )Remove all test weights firstthen place weights as shown.
Press
to Toggle between Additive and Absolute Weight
Solution screens. (noteicon on solution screen).

Absolute Weight Solution (=)

Apply Weights - The weight should be changed tothe positions shown to bring the balance to a minimum.

Press the next button
ready.

to indicate that the machine is

SolutionStart Spindle - The
icon and the “RPM” both flash as areminder to start the spindle again.
The Back arrow on the screen indicates that pressing
will access the history screens.

28 SBS Balance System

Solution

Measure Vibration. Once the rpm has stabilized, the rightarrow will appear on the screen and flash. Pressing the next
buttonwill store this measurement into memory.
The Back arrow on the screen indicates that pressing
will access the history screens.
If the resulting vibration is below the Balance Limitthebalance process will complete and exit to the main screen.
If the resulting vibration is above the Balance Limit, a newbalance solution will be provided to correct for the residual
unbalance.
Every subsequent balance solution is a Trim Balance. A Trim balance is just another iteration of the
Solution Phase, performed if more adjustment is needed. If changes are made, a new complete balance
operation should be run by pressing .
One of the following screens may be displayed instead of the Solution screen if the Balance Solution isdifficult to achieve.
The top screen shown indicates that either smaller or larger
weights should be used. Press
button to return tohistory screens for an opportunity to use a larger weight andrepeat the Test phase.
The bottom shown screen indicates that the compensation
numbers are very large or small for accurate display and theweight units in use may need to change. Press
buttonto return to the Apply Weights screen without making any
changes.

The images depict suggestions to improve results byincreasing or decreasing the weight and/or changing thebalance type between two and three weights.
Press
button to return to the Apply Weights screen
without making any changes.

SBS Balance System 29

Pre-Balance steps for dual plane
For simplicity, the pre-balance steps above are shown for single plane balancing. The steps for two-planebalancing are identical, but weight placement screens and measure vibration screens will show informationfor each of the two planes, with the top of the screen indicating one plane and the bottom of the screen
indicating the second plane.

Weight placement

Measure Vibration

The test weight placement phase is broken into two separate steps, with one weight placement for each plane.
The screen will show one plane as active, with the other plane shown greyed out. Complete each of theweight placements in sequence as directed.

30 SBS Balance System

Manual Balancing
The SBS Balance System is fully automatic, but can also be operated manually. The ability to move thebalance masses in the Balancer manually is useful for performing diagnostic tests and allows operators tomanually balance machines where desired.
Manual Balance buttons are accessed by pressing the MAN. button. A manual RPM can be specified whenno RPM signal is being received from the balancer, by using the arrow buttons to set the level and pressing
the ENTER button. The buttons are divided into two groups, each controlling one of the two masses in thebalancer (M1 and M2). Each mass can be moved in either the forward or backward direction, with reference
to the rotation of the grinding wheel. Only one button may be operated at a time. To manually balance,
move the two masses in the direction which reduces the vibration reading on the Vibration Display. Thisshould be accomplished in three stages.
Stage 1: Move each of the two masses equally in the same direction, either forward or backward. If moving
them one direction increases the vibration, then choose the opposite direction. Continue this way until thevibration level can no longer be reduced. This movement positions the two masses equally about a line
through the center of the wheel and the center of the imbalance, shown by the white dot.

Stage 1

Stage 2

Stage 2: Find the correct angle for position of the masses in relation to the “center line”. Do this by moving
the masses equally in different directions (one forward and one backward). Again, if the vibration level isincreased, the opposite weight movement should be tried. This stage is complete when the vibration level
can no longer be reduced.
Stage 3: The balance level can be fine-tuned by moving the masses individually in small increments, in orderto minimize the vibration reading.
Any change in vibration level of the machine will lag behind the movements of the masses by one or two
seconds. This is due to a “settling effect” of the machine. When the correct direction of movement is not
immediately clear, or the vibration level itself is small (2.0 microns or less), any movement of the masses
should be performed in small increments, with a delay of two seconds between movements to evaluate eachmovement’s effect.
Manual RPM filter
The system can also be used as a vibration measurement and analysis tool. The Control Unit’s vibration
frequency filter can be manually adjusted from 300 to 30,000 RPM in increments of one RPM. This allows
the Control Unit to operate independently of the Balancer, and to measure vibration levels occurring atdifferent frequencies.
To set the Manual Filter, detach the 12-pin Balancer Cable from the Control Unit to eliminate any incoming
RPM signal. Press the MAN. button on the balancer Main Screen to enter the manual mode. Set the desired
RPM frequency for the manual filter, using the left arrow button to select digits, and the up and down arrow
buttons to change the selected digit. Press ENTER to view the vibration level at this selected RPM. If
SBS Balance System 31

desired, the Manual Filter level can be adjusted to display vibration levels at other frequencies. A complete
analysis of all frequencies of interest is also available using the Plot Vibration feature.

Plot Vibration
This function performs an automated vibration spectrum sweep at specified RPM (frequency) ranges, anddisplays the results graphically on screen. It can be useful in diagnosing machine condition induced
vibration or discovering environmental problems, which may have adverse effects on the grinding process.
The RPM range to be evaluated will vary by machine and process. The minimum and maximum operating
RPM of the grinder should be determined. The suggested evaluation range is from 0.4 x (minimum RPM) to
2.0 x (maximum RPM). This includes all frequencies which will have potential harmonic influences on theoperating RPM range. Also a wide range can be used to identify an area of interest, and then to gain moredetailed information, a narrower plot performed on the RPM range of interest.
RPM RANGE – Select PLOT VIBRATION from the menu, then select RPM RANGE. The RPM Range isthe frequency range that will be evaluated during the spectrum sweep. Use the arrow buttons to set the low
end of the RPM range, press ENTER to store the value, and then enter the high end of the range in the samemanner. When setting the RPM range use the up and down arrow buttons to increase or decrease values, andthe left arrow button to move the cursor to the desired digit.
START – This begins the vibration sweep for the selected RPM Range. The rotating hour glass on the righthand side of the display indicates the Control is sweeping through the RPM range. During this process allrecorded RPM, Vibration level pairs are sent out the software interface, in ASCII format. When the RPM
sweep is complete, the display will show the resulting frequency plot. An un-cancelled plot will display full
width on the screen. Cancelled plots will have fewer points and display in a narrower width. The verticalscale is linear, and based on the peak value, displayed at the top of the plot. The horizontal scale islogarithmic. The peak frequency will be displayed by a white line.
1)

VIEW DATA. Press this button to change the display to a listing of peak vibration values. These are
the top 20 (or less) values recorded in the selected range. The VIB./RPM button on this screen sorts theorder of these values, allowing them to be ordered by vibration level or RPM. The arrow buttons areused to scroll up or down through the values. The VIEW PLOT button returns to the screen showing
the last recorded graph.

2)

SEND DATA. Press this button to export the recorded peak values, and corresponding RPM levels out
the software interface, in ASCII format. This information can be captured and used as needed.

3)

PLOT SETUP. This button returns the user to the setup screen for performing a vibration plot, where
alternate RPM settings can be input for plotting, or the plot process can be exited, by pressing the
EXIT button.

Frequency plot
32 SBS Balance System

Peak values display

Hardwire Interface
Interfacing the SBS Balance System with a CNC or PLC machine controller is supported via a hardwire
interface or software interface. The hardwire interface is provided via a standard DB-25 connector located on
the rear panel of each Balancer Card, while the Software interface is supported via either the USB or
Ethernet connections, which are common to the whole control unit. Because of the many possible variations
and configurations of cabling required for such an interface, it is left to the operator to supply the necessary
cable.
When designing an interface for the SBS System, it is important to understand that the grinding
machine's controller must operate the SBS System. It is not possible for the SBS System to control thegrinding machine.
Carefully read this entire manual before attempting to interface the SBS System with any machine controller.
Sections covering the interface of other SBS products installable in the SBS Control are covered separately
in the manual addendum for such products.
Hardwire interface overview
The hardwire interface consists of three sections: interface power supply, the inputs, and the outputs.
The interface power supply is provided exclusively for use with the hardwire interface inputs. It consists ofthree common pins and one output pin. The common pins are internally connected to chassis and earth
ground. The output provides a maximum of 30 mA at approximately +15VDC. Any external power used
for interface I/O must be from a SELV (Safety Extra Low Voltage) source or supply.
The three inputs provide noise immunity androbustness. The inputs are activated by being
pulled high, either by connection to the SB5500 hardwire interface power supply output
or by connection to a customer supplied
signal. Activating the inputs requires at least 8mA at a voltage between 10 and 26 volts, AC
or +DC, referenced to the SB-5500 hardwire
interface power supply common. The
common pins are internally connected tochassis and earth ground. The inputs aredeactivated by removing the connection to thepower or signal source.

SB5512 or SB5532 DB-25
Standard for SB-5500 balancers
SUP-COM

Out: BOT2-NO

Out: N/C

Out: BOT2-R

Out: N/C

Out: BOT2-NC

Out: N/C

Input: FPI

RPM-R

Input: SBC

Out: RPM

Input: SPB

SUP-COM

SUP-OUT

Out: FBSI-NC

Out: N/C

Out: BOT-NC

Out: BOT-R

Out: BOT-NO

Out: FBSI-R
The outputs consist of optically isolated,
Out: FBSI-NO
Out: BIP-R
single-pole/double-throw solid state relays.
Out:
BIP-NO
Out: BIP-NC
These solid state relays may be used to supply
SUP-COM
an output signal by connection to a voltage
Shell (Shield Ground)source supplied by the customer. The outputs
are electrically isolated from all other circuits and are rated for 24 Volts DC or AC, 50 mA maximum.
Inductive loads must be protected against flyback to 50VDC.

The three contacts of a single-pole/double-throw solid state relay are referred to as “normally open”,“normally closed” and “common”. The term “common” in this sense does not imply connection to power
supply commons. The term “return” is used below to indicate the common contact of the output.

SBS Balance System 33

Input Pin Names and Functions
Pin#

Name

Description

18

SBC

Start Balance Command- Momentarily activated to initiate an automatic balance operation.
The rising edge of this signal starts the operation.

19

SPB

Stop Balance Command- When active, this input stops an automatic balance operation inprogress and inhibits the start of an automatic balance operation from either the hardwire orsoftware interface. AUTO button is still functional on front panel.

17

FPI

Front Panel Inhibit- When active, key operator actions at the front panel keypad are
disallowed. The MENU, MAN., and the AUTO Button are disabled. Still enabled are thePower button and the Cancel button, which can be used to stop an automatic balance
operation. Access to the SHOW-ALL button and System Status screen are allowed.

Output Pin Names and Functions
Pin#

Name

Description

22
10
9

BOT-R,
BOT-NO
BOT-NC

Balance Out of Tolerance: Return, normally open, and normally closed contacts. This
output is active when 1) the measured vibration level exceeds the operator set vibration
Tolerance, and remains active if the vibration exceeds the Critical Tolerance. 2) It is also
active if the spindle RPM exceeds the operator defined Critical Max. RPM, but not active
if spindle RPM falls below the user set Critical Min. RPM limit.
Function of this relay during an automatic balance cycle is determined by the CNC BOT
MODE setting.

15
14
16

BOT2-R
BOT2-NOBOT2-NC

Balance Out of Tolerance Two: Return, normally open, and normally closed contacts.
This output is active 1) when the measured vibration level exceeds the operator defined
Critical Tolerance, 2) when the spindle RPM exceeds the operator defined Critical Max.
RPM, or 3) if spindle RPM falls below the Critical Min. RPM limit set.
Function of this relay during an automatic balance cycle is determined by the CNC BOT
MODE setting.

24
12
25

BIP-R
BIP-NO
BIP-NC

Balance In Progress: Return, Normally Open, and Normally Closed contacts. This output
is active while an automatic balance operation is in progress.

23
11
8

¯¯¯¯¯¯FBSI-R¯¯¯¯¯¯¯
FBSI-NO¯¯¯¯¯¯¯
FBSI-NC

Failed Balance/ System Inoperative: Return, normally open, and normally closed
contacts. This output is active when the system is in normal operation mode, with thepower on, and after a successful Power On Self-Test. It is de-energized if the control isin a power off or power standby mode, or if an error or fault condition arises.

6
5

RPM
RPM-R

This solid state relay closes once per revolution. This is a buffered output of the RPM
signal generated by the balancer. It is not available if the RPM has been enteredmanually.

Software Interface
The SBS Balance System provides a software interface via either Ethernet TCP/IP or USB. The softwareinterface allows the same control capability as the hardwire interface plus system status monitoring, setting
the Auto-Balance Limit, and vibration spectrum analysis. The following description applies to all SB-5500
models.

34 SBS Balance System

Interfacing
The software interface provides a serial interface emulation which connects the Control to a Windows
computer over either Ethernet TCP/IP or USB. For TCP/IP, use Telnet at the Windows command prompt
pointed to the IP address of the Control, or use HyperTerminal or similar serial communications software
pointed to port 23 with any baud rate setting. When connecting via USB, Windows will assign a COM port
to the control. If the SB-5500 is not automatically assigned a COM port, a driver for Windows installation of
USB-Serial communication is available on the SBS website at https://accretechsbs.com/. COM port
assignment is controlled by Windows, and a unique COM port will be assigned for each detected SB-5500
control. The port assigned can be determined by viewing Windows Device Manager. Use HyperTerminal orother serial communications software to interact with the Control over USB connection.
Software commands and responses
When the Control unit is first powered up, the following message is transmitted via the software interface.
/SB-5500, Copyright (c) 2020, Accretech SBS, Inc.<CR>
V0.85<CR>
Commands - A message preceded with the digit ‘1’ through ‘4’ is a command or response referring to Slot
Cards 1 to 4, respectively. A message starting with any other character refers to the System Control.
Examples following use “1” as the card slot number.
The following commands from the Software Interface are available:
Control Unit Commands
CommandC

Response

Meaning/ Example:
Control Panel Status Inquiry.

<Esc>C<CR>
CI

Control Panel is Inhibited

CE

Control Panel is Enabled

CX

Control Panel is not installed

CI<CR>
CE<CR>CX<CR>
CE

Control Panel Enable.

<Esc>CE<CR>K

Command Acknowledged

K<CR>
CX

Control Panel is not installed

CX<CR>CI

Control Panel Inhibit.

<Esc>CI<CR>
K

Command Acknowledged

K<CR>
Q

Command Not Accepted (Panel in use?)

Q<CR>
CX

Control Panel is not installed
Version Request (main board firmware).

Vn.nn

Firmware Version

V<Esc>V<CR>
V1.00<CR>
SBS Balance System 35

Slot Card Commands (Cards are Individually Controlled)
CommandX

Response

Xz.zzVn.nn[sss]/text

Meaning/ Example:
Type (of slot card) Request.
< Esc >1X<CR> Start Slot 1 Info Request.
Slot response. z.zz indicates Slot Card type: 1.02 is Mechanical Balancer; 1.03
is N/C Balancer; 2.02 is Hydro Balancer; 3.00 is AEMS card; 5.00 is Manual
Balancer. n.nn is balancer firmware revision. sss is the user specified name forthis card. The slash precedes a text comment that explains the card type.

1X1.02V0.15[NAME]/MECHANICAL BALANCER<CR>
1X1.03V0.15[NAME]/NON-CONTACT BALANCER<CR>
1X2.02V0.15[NAME]/HYDROKOMPENSER<CR>
1X3.00V0.03[NAME]/GAP / CRASH<CR>
1X5.00V0.15[NAME]/MANUAL BALANCER<CR>
X0/No Card

No card is installed in the slot.

1X0/No Card<CR>
XX/NotRespondingBA

A card is installed in the slot, but is not responding to the system.

1XX/Not Responding<CR>
Balancer Abort Command.

<Esc>2BA<CR> Abort Slot 2 Balance Cycle.
BT

Balance cycle terminated (if running)

2BT<CR>
BS

BS

Balance Start Command. This command will start the auto balance cycle if thesystem resources can be acquired. The front panel Cancel button will stop thecycle.
<Esc>1BS<CR> Start Slot 1 Balance Cycle.
Balance Cycle started

BT

Balance Cycle terminated

1BS<CR>
1BT<CR>CS

S rrr,vv.vvv

Start Periodic Update. This command will enable the periodic output status,
which will repeat approximately every 400 ms.
<Esc>1CS<CR> Start Slot 1 Periodic Status Output.
Periodic status response. rrr is RPM, v.vv is vibration level in current units

1S 1776,0.448
1S 1776,0.453
CAG[sss][,[eee]]

U=units

Abort Periodic Update (periodic update is not sent)
Graph Vibration Spectrum. This takes vibration readings as a function of the
rpm of the vibration. Optionally specify sss as starting rpm and eee as endingrpm.
<Esc>1G500,2000<CR> Start Slot 1 Vibration Spectrum Program. Scanfrom 500 to 2000 RPM.
Spectrum program started (units given)

1U=UM<CR>
Grrr,vv.vvv

Graphic Vibration Point. One line is generated for each RPM measured. rrr isthe current rpm. vv.vvv is the measured vibration at the specified RPM.

1G500,0.04<CR>
1G550,0.05<CR>
GE

Graphic Spectrum End. The graphics vibration spectrum routine is finished.

1GE<CR>
GX

Cancel Vibration Spectrum.

<Esc>1GX<CR> Stop Slot 1 Vibration Spectrum Program.
36 SBS Balance System

GE
L[x.xx[,[y.yy][,[z.zz]]]]

Lx.xx,y.yy,z.zzGraphic Spectrum End
Limits Command. x.xx is Limit, y.yy is Tolerance, z.zz is Critical Vibration level,
all in microns. If x.xx is not present then the Limit level will not be changed. If
y.yy is not present then the Tolerance level will not be changed. If z.zz is notpresent then the Critical Vibration level will not be changed.
<Esc>1L<CR> Get Slot 1 Balance Limits.
Balance limit response (new values). x.xx is Limit, y.yy is Tolerance, z.zz is
Critical Vibration level, all in microns.

1L0.40,1.20,20.00<CR><Esc>1L0.08,,15<CR> Set Slot 1 Limit to .08, Critical level to 15.00, don’tchange Tolerance.

1L0.08,1.20,15.00<CR>
P[1|2|3]

P1

Balance Speed setting. 1 sets cautious balance. 2 sets aggressive balance.
3 sets normal balance.
<Esc>1P<CR> Get Slot 1 Balance Speed setting.
1P1<CR> Current Balance Speed setting is cautious.

<Esc>1P2<CR> Set Slot 1 Balance Speed setting aggressive.
1P2<CR> Current Balance Speed setting is aggressive.
R[rrr]

Rrrr

Set critical RPM level. rrr is new Critical RPM level. Values of 301-30100 areused as Critical RPM value. All other values are interpreted as OFF.
<Esc>1R3500<CR> Set Slot 1 Critical RPM to 3500 RPM.
<Esc>1R0<CR> Turn Slot 1 Critical RPM check Off.
<Esc>1R<CR> Get Slot 1 Critical RPM
1R3500<CR> Slot 1 Critical RPM is 3500 RPM.
Response of rrr=300 means no limit is set, Critical RPM is OFF.

1R300<CR>
S[C]

S rrr,v.vv,[FBSI,][BIP,][FPI,]ERR=eee

Status Request command. If ‘C’ present then previously reported errors
condition will be cleared before the status is reported.
<Esc>1S<CR> Report Slot 1 Status.
Status response. rrr is RPM, v.vv is vibration level in the current units. FBSI
indicates balance failed/system inoperative, BIP indicates balance in progress,
FPI indicates front panel is inhibited. eee represent individual error lettersrepresenting error conditions. If the first letter is ‘@’ then an error condition
requires clearing (use SC command or press clear on front panel).

1S 1590,0.23,ERR=@GI<CR><Esc>1SC<CR> Report Slot 1 Status.
1S 1590,0.24,ERR=G<CR>
Software operation summary
The Software interface capability of the SBS Balance System allows for fully automated balancing andtesting of a grinding machine. For example, if the vibration spectrum of a new machine is recorded, it may
be kept for future reference to gauge relative bearing condition, spindle balance and machine condition. The
RPM and vibration level readouts from the status line can be used to provide a remote indication of themachine operating speed, and characteristics. This data may be used to indicate when a grinding wheelneeds to be changed or other maintenance performed.

Profibus DP Interface
A Profibus Implementation document, along with the required Profibus GSD file, can be downloaded fromthe SBS website at https://accretechsbs.com/.
SBS Balance System 37

38 SBS Balance System

BALANCE LIMIT

BOT LEVEL

BOT2 LEVELGRINDING OR
DRESSINGCYCLEVIBRATION
EXCEEDSTOLERANCEBEWEENGRINDING
CYCLES

1

ALLOW 2 SEC.
FOR SOLID STATE RELAY TO OPEN

BOT SET “ ACTIVE”

0.2 MICRONS (minimum recommended)1= RELAY CLOSED= RELAY OPENWHEEL BALANCED

BOT SET “ INACTIVE”

BALANCECYCLE IN
PROGRESSVIBRATION PLOT AT
SPINDLE FREQUENCYGRINDING OR
DRESSING
CYCLE

SBC ALTERNATESBC SIGNAL

BIP

BOT21

BOT

BEWEENGRINDING
CYCLES

CNC/System Timing Diagram

BACKGROUND VIBRATION LEVELGRINDER ON

POWER UP
1

(ALLOW 5MS FOR SOLID STATE RELAYS TO OPEN)

ACTIVE SETTING – SOLID STATE RELAY OPENSAFTER VIBRATION LEVEL IS BELOW LIMIT (HK-5000).

INACTIVE SETTING – SOLID STATE RELAY OPENS
WHEN BALANCE CYCLE STARTS (SB-2500).

BOT /BOT2 RELAYS BEHAVIOR DURING BALANCECYCLE ARE BOTH SET BY CNC BOT MODE MENU
SELECTION.

CNC/System Timing DiagramSystem MaintenanceCollector maintenanceOperator maintenance of the SBS Balance System is restricted to replacement of the line fuse in the Control
Unit, and replacement of Balancer slip ring assembly as necessary. Instructions are shipped with thecollector replacement parts. Cable schematics for the Balancer Cable and Sensor Cable follow in order toassist with minor repair or wiring connection work. If further service is required, contact your SBS Balance
System source, or Accretech SBS, Inc.
The non-contact version of the SBS balancer contains no user serviceable parts.

Balancer Slip Ring Replacement
RPM Sensor(SB-8520) Slip Ring Block
Guide Slot
Slip Ring Post
Slip Ring Connector
Plastic Retaining Clamps
Main Connector
Cover
Cover Screws (M3)Cap

SBS Collector Diagram (SB-8510)

Post Screws (M3)
(SB-8530) Slip Ring Post
Bearing
Ring
Post Connector
Balancer

SBS return/repair policy
Accretech SBS, Inc. policy is to give highest priority to the service needs of our customers. We recognize
the cost of machine downtime, and strive to deliver same day repair of items arriving by overnight delivery
at our facility. Because of the complication and delays involved with international shipments, customers
outside the continental U.S. should contact their local SBS source for service support. Before returning any
equipment for repair, it is necessary for you to contact Accretech SBS, Inc. for a Return Materials
Authorization (RMA) number. Without this tracking number, Accretech SBS, Inc. cannot ensure prompt andaccurate completion of your repair needs. Failure to obtain an RMA number may result in substantial delay.

SBS Balance System 39

Balancer cable schematic
Balancer Cable
For Cable Part Numbers SB-48xx
OUTER BRAIDED SHIELDDRAIN 24 AWG (7/32)
BLACK 24 AWG (7/32)

CONNECTOR AT
CONTROL END

CONNECTOR AT
BALANCER END

WHITE 24 AWG (7/32)
GREEN 24 AWG (7/32)
INNER FOIL SHIELDBLUE 24 AWG (7/32)
VIOLET 24 AWG (7/32)
BROWN 24 AWG (7/32)
RED 24 AWG (7/32)
ORANGE 24 AWG (7/32)

12p CIRCULAR MALE
DIN PIN VIEWYELLOW 24 AWG (7/32)

Sensor cable schematicPart Number SB-14xx
BACKSHELLOUTER SHIELDBLACK 20 AWG (19/32)
RED 20 AWG (19/32)

CIRCULAR MALE DINPIN VIEW

40 SBS Balance System

7p BAYONET FEMALEPIN VIEWTrouble Shooting Guide
This guide is designed to help you if you experience problems with your SBS Balance System.
Step 1
If the balance Control Unit is displaying any error messages, refer to the Displayed Error
Messages section of this manual for explanation of the message(s) displayed. Contact Accretech SBS, Inc.
for assistance as required. If reporting a service issue, please indicate the Error Code (letter) of any
displayed Errors.
Step 2
If no error messages are displayed, check the Vibration Sensor. Verify that the Sensor is firmlyseated on the machine, its magnet firmly tightened in place, and it is properly connected to the Control Unit.
Also check that the Sensor's position on the grinding machine accurately reflects machine balance (see:Vibration Sensor Location section).
As a final check, set the RPM manually on the Control Unit to the operating speed of the grinder, and verify
that there is an incoming vibration signal. If you receive a zero reading from the Sensor during this test, theVibration Sensor and Control Unit should be returned for repair. Contact Accretech SBS, Inc. for a returnmaterials authorization (RMA) number.
Step 3
If the Vibration Sensor is working correctly, the next step is to perform an integrity check of therest of the system. This test should be performed with the machine running, but not during a grinding or
dressing cycle. Press the MAN. button to enter the manual control mode, and simply press each of the four
manual buttons, one at a time, for a period of about 5 seconds. With each movement of the Balancer
weights, the system should register a change in the displayed vibration level on the Control Unit. If this does
not happen for any of the four buttons, there is a service problem with the system. The Balancer, Control
Unit, Vibration Sensor, and Balancer Cable should all be returned as a unit. Contact Accretech SBS, Inc. fora return materials authorization (RMA) number.
Step 4
If the control unit’s self-check shows no service problem with the SBS System, then investigate
environmental/application issues. The background vibration level on the machine should be monitored underoperation, and the Balance Limit setting checked against this level. (see: Environmental Considerations
section) (see: Setting Operating Parameters section) The sizing of the Balancer to the application should
also be checked. (see: Verifying Balancer Sizing section)
If you continue to have problems after following these four steps, contact Accretech SBS, Inc. or your
SBS Balance System source for assistance.
Display test option
The display can be tested for functionality during control power-up by pressing one of the function buttons
above “SETUP”, followed by the “SETUP” button. The screen will display a DISPLAY TEST message andlist buttons for TEST, START, and SETUP. Pressing TEST will reverse the light and dark text areas.
Pressing TEST again will display a full screen with all pixels lit. Pressing again will turn all screen pixels
off. Pressing once more will return the screen to DISPLAY TEST. Also displayed are the revision reference
numbers for the system main board and display board. The LED status indicators on the left side of thedisplay will sequence through the three colors to check operation. Press the START button to bypass
SETUP and resume normal operation. Press the SETUP button to continue to system setup.

SBS Balance System 41

Displayed Error Messages
Self-diagnostic software has been incorporated into all SB-5500 Balance Control Units. If a problem everoccurs with an SBS system, It is reported on the front panel display as an error code. Below is a listing ofthese error codes, a description of when the Control Unit automatically runs each test, how each code iscleared, the definition of each error message, and prescribed action to be taken by the user.
Press CLEAR or CANCEL to manually clear a displayed error message. Once an error is cleared, it will be
displayed again when the error condition is next detected. To further isolate defective components a series oftest operations accompany some of the error codes.
Please indicate the Error Code (letter) of any displayed Errors when returning equipment for repair. Also
please provide as much detail as possible regarding the conditions when problems were encountered, and thesymptoms experienced.
Error
Code
A

B

C

Message

Definition

ActionRPM OUT OF RANGEOPERATION RANGE IS
300-30000
CHECK RPM SENSOR

Checked continuously.
Displayed if the RPM
signal coming from theBalancer is below 300
RPM or exceeds
30,000 RPM.

Clears automatically. Verify operating speed of thegrinding machine. If the machine is running above
30,000 RPM, contact your SBS Balance Systemsource for application consultation. If the machine
is running within the operating speed limits, andthis error message persists, this indicates a failureof the RPM sensor in the Balancer. The Balancer
should be returned for service.

VIB SENSOR DEFECT
OPEN – CHECK CABLE
AND CONNECTORS SEE MANUAL

Checked continuously.
Vibration Sensor
presence notdetected. This could
be caused by adefective sensor or by
no sensor being
connected.

Clears automatically when sensor detected.
Check sensor connections and try Power-On
again. Continued error messages indicate theneed for repairs to the Sensor.

VIB SENSOR DEFECTSHORT – CHECK CABLE
AND CONNECTORS –SEE MANUAL

Checked continuously.
Vibration sensor shortcircuit detected.

Clears automatically. Disconnect the balancerfrom AC power before checking cables andconnectors, and sensor for shorts. If the problem
cannot be isolated, the sensor, cable, and/or
Control Unit should be returned for repair.

42 SBS Balance System

Error
Code
D

E

F

G

Message

Definition

ActionMOTOR DRIVER FAULTSHORT – CHECK CABLE
AND CONNECTORS –SEE MANUAL

Checked at the end of
a motor pulse.
Motor short circuit
detected.

Cleared manually.
Determine which component is defective by
swapping parts with another system, or by using
the following diagnostic test. Return defective
component for repairs. If in doubt, return all items.
Test: Shut off the grinding spindle, anddisconnect the Balancer Cable from the Balancer,
but not from the Control Unit. Press the MAN.
Button to enter manual control mode. Press andhold down the first of the four manual motor
buttons for 15 seconds. Repeat with each of themanual motor buttons, one at a time.
If error E is displayed, clear this error it is expected.
If no other error occurs during this test, then the
problem is with the Balancer. If error D or F isdisplayed, then continue on with this test.
Disconnect the cable from the Control Unit, andrepeat the above test, using all four manual motor
buttons, one at a time. If error E is displayed, clear
this error it is expected. If no other error occurs
during this test, then the problem is with theBalancer Cable. If error D or F is displayed, theproblem is with the Control Unit.

MOTOR DRIVER FAULT
OPEN – CHECK CABLE
AND CONNECTORS –SEE MANUAL

Checked at the end of
a motor pulse.
Motor open circuit
detected.

Cleared manually.
Determine which component is defective by
swapping with another system. Return defective
component for repairs. If in doubt, return all items.

MOTOR DRIVER FAULTEXCESS CURRENT PERFORM MANUALFUNCTION TEST

Checked at the end of
a motor pulse.
Motor – excessive
current detected (shortor stall).

Cleared manually or by pressing Auto button.
Verify that both ends of the Balancer Cable areproperly attached. If connector pins arecontaminated, clean with electrical contact cleaner.
If the problem persists, determine if the Balancer
Cable is the defective component by swapping withanother system, or by using a voltmeter andconsulting the enclosed Balancer Cable
Schematic. This error can be caused by
motor/gear train failure inside the balancer. Returnthe defective cable or Balancer for repairs. If in
doubt, return both items.

AUX POWER DEFECTSHORT – CHECK CABLE
AND CONNECTORS SEE MANUAL

Checked continuously.
24V Auxiliary Supply
low – fuse open.

Cleared automatically.
Determine which component is defective by
swapping with another system, or by using thefollowing diagnostic test.
Return defective
component for repairs. If in doubt, return all items.
Test: Check for shorts in cables and connectors
and re-initiate system check. Unplugging one
cable at a time from the control can help isolate theproblem component. If the error persists return
Control Unit and cables for repair.

SBS Balance System 43

Error
Code
H

I

J

K

L

Message

Definition

ActionRPM/CNC POWER DEFECTSHORT – CHECK CABLE
AND CONNECTORS SEE MANUAL

Checked continuously.
15V Auxiliary supply
low – fuse open.

Cleared automatically or by pressing Auto button.
Check for shorts in Balancer and machine
controller interface cables and connectors and reinitiate system check. Unplugging one cable at atime from the control can help isolate the problem
component. If you have the SBS system cabled toyour machine controller, verify that the interface
cable is free of electrical shorts. The interface
cable is not supplied with the SBS system, andrepair is the responsibility of the user. If the error
persists return Control Unit and cables for repair.

AUTO-BALANCE FAILEDLIMIT NOT REACHABLE
BEST BALANCEACHIEVED AT

Checked during Auto
Balance cycle.
Auto Balance Failed –unable to reach limit.

Cleared manually or by pressing Auto button.
Reset the PULSE setting to “CAUTIOUS”, andverify system integrity as OK (see: Trouble
shooting Guide section). If this error continues,
there are two possible causes of this error.
1) LIMIT set too Low - The LIMIT must be set 0.2
higher than the Measured background vibration(see: Other Sources of Vibration section).
2) It is a signal that the Balancer supplied is sizedincorrectly for the application. Conduct the test
described in the Verifying Balancer Size section. If
test results are outside suggested levels, contact
your SBS Balance System source to discuss
replacement.

NO RPM SIGNALCHECK CABLESCHECK SPINDLE

Checked continuously.
No incoming RPM
signal, possible open
in RPM sensor circuit.

Cleared automatically or by pressing Auto button.
Ensure that the spindle is running, with balancer
cable attached at both balancer and control ends.
Determine which component is defective by
swapping with another system. Return defective
component for repairs. If in doubt, return all items.

ABNORMAL CONDITIONBAL CYCLE COMPLETEDAFTER ERROR DETECTEDSEE MANUAL

Checked when Auto
Balance Cycle
Complete.
Balance completedwith errors (after error
detected and cleared)

Cleared manually.
No action required other than clearing error.

CIRCUIT FAILURE
UNABLE TO MEASUREVIBRATION
SEE MANUAL

Checked continuously.
Signal acquisition
circuit failed.

Cleared automatically.
No action required other than clearing error. If the
problem persists, the Control Unit should be
returned for repair.

INTERNAL VOLTAGE ERROR

Checked continuously.
A Fault with one of theinternal power
supplies of the Control

Note conditions when the error occurred and return
the Control for repair.

FPGA NOT PROGRAMMED

Checked at Power on.
The indicated devicecard is not responding
Slot (1-4)

Try reseating device card(s) onto the main Control
PCB. If error persists, the card is faulty and must
be replaced.

44 SBS Balance System

Support
For support, contact the machine builder or SBS at:

Accretech SBS, Inc.
2451 NW 28th Avenue
Portland, Oregon 97210 USA
Tel.: +1 503.227.7908
Fax: +1 503.223.1258
TechSupport@accretechSBS.com
https://accretechsbs.com/

SBS Balance System 45

Appendix A: Specifications
Physical Features

Performance

Multiple Device Control
Four (4) available slots accept these control cards:
SB-5512 Mechanical wired balancers
SB-5518 Hydro Balancers
SB-5522 Acoustic Emissions Monitoring System
SB-5523 ExactDress™ process monitoring
SB-5560 ExactControl™ process monitoring
SB-5562 Studer AE Control™ process monitoring
SB-5532 Mechanical non-contact balancers
SB-5544 Manual balance control
SB-4500 Compatible
Operates with existing balancers/cables, sensors,
CNC/PCL Hardwire Interface
Display
Type: Color TFT LCD
Active area: 480H x 272V pixel
3.74 inch [95mm] x 2.12 inch [53.86mm]
Multi-language Capability
English, Chinese, French, German, Hungarian, Italian,Japanese, Polish, Portuguese, Russian, Spanish,
SwedishCommunication Interfaces
Ethernet TCP/IP, USB 2.0, Profibus DP, CNC/PLC
Hardwire Interface (opto-isolated outputs)
DC or AC Power Options
DC Supply: Input 21 VDC to 28 VDC. 5.5A max at 21
VDC. Reverse voltage protected.
Connector: Molex 50-84-1030 or equiv.
Contacts:
Molex 02-08-1002 or equiv.

RPM Reporting
300 to 30,000 RPM
Sub-micron Vibration Range
50 μg to 1.25g
Vibration Display Resolution
Three user selectable options
1) 0.1 μm 0.01 mil 0.01 mm/s 1 mil/s2) 0.01 μm 0.001 mil 0.001 mm/s 0.1 mil/s3) 0.001 μm 0.001 mil 0.001 mm/s 0.01 mil/s
Vibration Display Repeatability
6,000 RPM ±1% @ 5.0 μm
300 – 30,000 RPM ±2% @ 50:1 signal to noise
Vibration Display Accuracy
6,000 RPM ±2% @ 5.0 μm
300 – 30,000 RPM ±4% @ 50:1 signal to noise
Auto-Balance Resolution
0.02 microns displacement at 6,000 RPM
Vibration Filter
Custom digital filter has bandwidth +/- 3% of
measurement RPM
Certifications
ETL and CE certified
https://accretechsbs.com/

AC Supply: 100-120 VAC, 50/60 Hz, 2A max; 200240 VAC, 50/60 Hz, 1A max. Main
supply voltage fluctuations not to exceed+/-10% of nominal supply voltage.

Environmental and Installation
SB-5500
Pollution degree 2
Installation category II
IP54, NEMA 12
Environmental temperature range: 5°C to +55°C
SB-5575/80/76/81
Pollution degree 2
Installation category II
IP20
Environmental temperature range: 5°C to +55°C

Vibration Sensor
Sensitivity Range
Sensitivity Resolution
Voltage Sensitivity
Excitation Current
Frequency Response
Operating Temperature

46 SBS Balance System+ /- 25g
0.0001g
100 mV/g
2 to 8 mA
0.5 to 5000 Hz
0 to +70 C

Appendix B: Replacement Parts List
Part#

Description

Balancer Cables
SB-48xx
SB-48xx-V
SB-46xx

Balancer Cable /SB-5500 series
Balancer Cable /SB-5500 series – Heavy Duty
Balancer Extension Cable /SB-5500 series

Controls/Options
SB-24xx-L
SB-43xx
SB-5500
SB-5512SB-5518
SB-5522

Hardwire Interface cable (standard lengths)
Remote Keypad Cable for SB-5500
Control Unit (Expandable to 4 Card slots)
Additional Mechanical Balancer Card
Additional Hydrokompenser (water balancer) Card
AEMS Gap/Crash Monitoring System Card

Vibration Sensors
SB-14xx
SB-16xx

Sensor Cable (standard lengths)
Sensor Ext. Cable (standard lengths)

Control Mounting Hardware Options
SK-5000
Rack Panel: SB-5500, Full Wide w/ 1/2 Blank, 3U
SK-5001
Rack Panel: SB-5500, Partial Wide 3U w/ Handles
SK-5002
Rack Panel: SB-5500, 1/2 Rack 3U Bracket
SK-5003
Control Mount: SB-5500, Bottom Flange
SK-5004
Control Mount: SB-5500, 90 Deg. Bracket, Cabinet
SK-5005
Keypad Mount: Flush Panel Frame Kit
Other Parts
EC-5605
EC-5614CA-0009
CA-0009-G
CA-0009-B
SB-8510SB-8520
SB-8530
MC-8516CA-0121CA-0125
CA-0105
SB-1300
SB-1311
SB-1321

A/C Control Fuse, 3 amp time lag 5x20 (2 required)
D/C Control Fuse, 6.3 amp time lag 5x20
Power Cord
Power Cord (Germany)
Power Cord (British)
Complete SBS Balancer Low Profile Collector replacement
Collector Slip Ring Block Replacement
Collector Slip Ring Post Replacement
Collector RPM Sensor Replacement
12-pin Male DIN (control end plug of Balancer Cable for 48xx series cables)
Standard 7-Pin Female Bayonet Connector (Balancer end of Balancer Cable)
Heavy-Duty 7-Pin Female Bayonet Connector (Balancer end of Balancer Cable)
Adjustable Hook Pin Spanner (Adapter Flanges)
Adjustable Face Pin Spanner 1/4” pins (Small Adapter Nuts)
Adjustable Face Pin Spanner 3/8” pins (Large Adapter Nuts)

xx in P/N = cable length in feet
Standard options 11 [3.5m], 20 [6.0m], or 40 [12.0m], e.g. SB-4811 = 11ft [3.5m]

SBS Balance System 47

48 SBS Balance System

Unit is shown upside down with the cover removed.

Note: All Service (including card installation) should be
performed by a qualified technician, or the unit returned to
Accretech SBS, Inc. for service.

Safe handling requires that technician have the unit open
or cards out of ESD bags only on an ESD-safe work
surface, and only when the technician is properly
grounded

Slot Screw
4-40x3/16

Card

Inside View of Rear Panel

3. Remove Slot Screw and Blank Slot Cover.
4. Plug Card into Main Circuit Board while sliding Card
metal plate into mating slots on inside of Rear Panel.
5. Install Slot Screw to secure Card.
6. Install Cover and Tighten Cover Screw.

For small chasses (e.g. SB-5575) remove 4 cover screws.

Tools Required:
1. Philips Screw Driver
2. Grounding Wrist Strap
Procedure:
1. Unplug Unit, invert, and lay on an ESD Safe Surface.
2. Remove Cover Screw at Back Panel of Control.

Card metal panel (or Blank Slot
Cover) slide into the matingslots on the inside of Control
rear panel.

Blank Slot Cover

Cover Screw
M4x6

Cover

Appendix C: Balancer Card Installation

Profibus
DP

CNC Cable
SB-2411-L 11ft [3.4m]
SB-2420-L 20ft [6.1m]
SB-2440-L 40ft [12.2m]

AC Input Option:
100~120,200-240 VAC

USB
DeviceBOT2

BIP

Customer CNC / PLC

Use SB-5500 Or
Customer Supplied PowerSPB INPUT
SBC INPUTFPI INPUT+15V DC OUT

Balancer Card
SB-5500 Control
N/C = Do Not Connect

Customer
Supplied
10-26V
AC or +DC

BOT

RPM

RELAYS andAMPLIFIERS

Hall RPMSENSORCONTROLAEMSSENSOR

MicroProcessor
Control

AEMS OPTION(See AEMS
Manual)Non-Contact (N/C) Balancer
SB-5532 CARD

24V AC or DC 50mA Maximum
Inductive Loads Require Protection

FBSI

N/C Cable/Extension
SB-8711-H 11ft [3.4m]
SB-8720-H 20ft [6.1m]
SB-8740-H 40ft [12.2m]

Balancer Cable
SB-4811-V 11ft [3.4m]
SB-4820-V 20ft [6.1m]
SB-4840-V 40ft [12.2m]

Balancer Cable Extension
SB-4611 11ft [3.4m]
SB-4620 20ft [6.1m]
SB-4640 40ft [12.2m]

N/C
SENDERDC Input
Option:21-28 VDC

Ethernet
TCP/IP

HALL EFFECT
RPM SENSOR

SB-5512 CARD

Cabled Balancer
N/C
BALANCER

Standard Cables Customer Supplied

Sensor Extension Cable
SB-1611 11ft [3.4m]
SB-1620 20ft [6.1m]
SB-1640 40ft [12.2m]

Sensor w/ Attached Cable
SB-1411 11ft [3.4m]
SB-1420 20ft [6.1m]
SB-1440 40ft [12.2m]

Appendix D: System Connection Diagram

SBS Balance System 49