SBS Manual Balance Control
User’s Guide
with SB-5500 Series Controls
LL-5900 Rev 1.3

Limited Use License Agreement
Carefully read the following terms and conditions before opening the package containing the product and thecomputer software licensed hereunder. Connecting power to the microprocessor control unit indicates youracceptance of these terms and conditions. If you do not agree with the terms and conditions, promptly returnthe unit to the dealer from whom you purchased the product within fifteen days from date of purchase andyour purchase price will be refunded by the dealer. If the dealer fails to refund your purchase price, contact
Accretech SBS, Inc. immediately at the following address 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 software and related
documentation (“Software”) and it licenses the use of the Software to you pursuant to the following terms andconditions. You assume responsibility for the selection of the product suited to achieve your intended results
and for the installation, use, and results obtained.
License Terms and Conditions
a. You are granted a nonexclusive, perpetual license to use the Software solely on and in conjunction withthe product. You agree that the Software title always remains with Accretech SBS, Inc.
b. You and your employees and agents agree to protect the confidentiality of the Software. You may not
distribute, disclose, or otherwise make the Software available to any third party, except for a transferee
who agrees to be bound by these license terms and conditions. In the event of termination or expiration ofthis license for any reason whatsoever, the obligation of confidentiality shall survive.
c. You may not disassemble, decode, translate, copy, reproduce, or modify the Software, except only that a
copy may be made for archival or back-up purposes as necessary for use with the product.
d. You agree to maintain all proprietary notices and marks on the Software.
e. You may transfer this license if also transferring the product, provided the transferee agrees to comply
with all terms and conditions of this license. Upon such transfer, your license will terminate, and you agree
to destroy all copies of the Software in your possession.

User’s Guide and Specifications
For theSBS Manual Balance Control
Covering Operation of SB-5543 and SB-5544
with Model SB-5500 Series Controls

LL-5900
Manual Revision 1.3
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 Manual Balance Control

Benefits of SBS System with SB-5500 Control

SBS Manual Balance 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, Profinet, 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.

Table of Contents
Quick Start for Balancing ........................................................................................................................................ 1
Introduction .............................................................................................................................................................. 2
System Purpose ..................................................................................................................................................... 2
Other Sources of Vibration ................................................................................................................................. 4
Machine Condition .............................................................................................................................................. 4
SBS Control Unit ................................................................................................................................................. 4
Vibration Sensor Location ................................................................................................................................... 4
RPM Sensor Installation ..................................................................................................................................... 5
Control Unit Operating Instructions ....................................................................................................................... 6
IVIS Software Interface ....................................................................................................................................... 6............................................................................................................................................................................ 6
Front Panel Controls ........................................................................................................................................... 6
SETUP ................................................................................................................................................................ 7
Control Unit without Front Panel Connected ...................................................................................................... 7
Rear Panel Connections ..................................................................................................................................... 8
Balancer card rear panel connections ................................................................................................................ 8
SB5580 ............................................................................................................................................................... 9
MENU Settings ..................................................................................................................................................... 10
Vibration Units ................................................................................................................................................... 10
Plot Vibration ..................................................................................................................................................... 10
Card Name ........................................................................................................................................................ 10
Menu Entry ........................................................................................................................................................ 10
Factory Settings ................................................................................................................................................ 11
Critical RPM ...................................................................................................................................................... 11
Setting Operating Parameters .............................................................................................................................. 12
Balance TOLERANCE ...................................................................................................................................... 12
Vibration Display ............................................................................................................................................... 13
Balancing .............................................................................................................................................................. 13
Prepare for balance cycle ................................................................................................................................. 13
Balance screen elements for single balance plane .......................................................................................... 13
Balance screen elements common to 2 planes ................................................................................................ 14
Edit and navigation conventions ....................................................................................................................... 14
Balance setup – balance screen ................................................................................................................ 15
Balance process – balance screen ............................................................................................................. 17
Four parts of each balance phase: ................................................................................................................... 17
Trim balance – balance screen ................................................................................................................... 18
SBS Manual Balance Control

History screens .......................................................................................................................................... 18
Balance Steps ................................................................................................................................................... 19
Balance steps for dual plane............................................................................................................................. 24
Plot Vibration ........................................................................................................................................................ 25
Hardwire interface overview.............................................................................................................................. 26
Input Pin Names and Functions ........................................................................................................................ 26
Software Interface ................................................................................................................................................ 27
Interfacing ......................................................................................................................................................... 27
Software Commands and Responses .............................................................................................................. 27
Software Operation Summary .......................................................................................................................... 30
Profibus DP Interface ........................................................................................................................................... 30
CNC/System Timing Diagram .............................................................................................................................. 31
System Maintenance .............................................................................................................................................. 32
Maintenance ..................................................................................................................................................... 32
Vibration Sensor Schematic ............................................................................................................................. 32
RPM Sensor Schematic .................................................................................................................................... 32
Trouble Shooting Guide ........................................................................................................................................ 33
SBS Return/Repair Policy ................................................................................................................................. 33
Display Test Option ........................................................................................................................................... 33
Displayed Error Messages ................................................................................................................................... 34
Support ................................................................................................................................................................. 35
Appendix A: Specifications ................................................................................................................................... 36
Physical Features ............................................................................................................................................. 36
Performance ..................................................................................................................................................... 36
Environmental and Installation .......................................................................................................................... 36
Appendix B: Replacement Parts List .................................................................................................................... 37
Appendix C: Balancer Card Installation ................................................................................................................ 38
Appendix D: System Connection Diagram ........................................................................................................... 39

SBS Manual Balance Control

Quick Start for Balancing
1. Calibrate the RPM sensor so the spindle speed is reported on the main screen.
2. Pressbutton to setup controller, including the MENU settings Limit, Tolerance and Criticalvibration values, balancing method, and scale direction. Each plane has a separate setup screen. Use
SHOW ALL to select the active plane for dual plane applications.
3. Pressto start a balance cycle. The screens below are for single point balancing.

Stop
SpindlePlace Weights

Start
SpindleMeasure Vibration

InitialPhase(Step 1)

Test
Phase
(Step 2)
Test mass value andunits can be edited.

Solution
Phase(Step 3)
Toggles solution
between Additive (+) and
Absolute (=).

If the resulting vibration is above theBalance Limit, a new solution will be
provided to correct the residual
vibration. If below, the process ends.

Additive Solution (+) leaves all existing weights and adds only what is shown.
Absolute Solution (=) removes all existing weights then adds what is shown.
If the balance gets worse after the solution phase, check that the scale direction setting is correct.

SBS Manual Balance Control

1

Introduction
This guide provides the information needed to X.
NoteThis guide uses English language setup screens for one specific master as a reference. Your
setup screens may vary in layout and language.

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 of vibration
during grinding is the existence of imbalance in the grinding wheel. This is often due to the heterogeneous
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 thewheel, imbalance in the arbor, and coolant absorption into the wheel. Considering all these factors, even a
carefully established initial balance will not last long. Furthermore, due to wear and dressing, the rotational
dynamics of a grinding wheel are always changing. For these reasons, dynamic balancing of grinding wheels
has long been recognized as an important step in the production process.
The SBS Manual Balancer 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 Manual Balancer 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 Manual Balancer, 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 Manual Balancer components to the grinding
machine will result in safety hazard during machine operation.
Warning: Never operate a grinding machine without all proper safety guarding in place.

2

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 Manual
Balancer. To avoid electric shock, do not remove the cover of the Control Unit,or remove cables, with power connected.

SBS Manual Balance Control

System Theory and Connection
The SBS Manual Balancer 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 to balance
the grinding wheel, multiplied by “r” the distance between that weight’s center of mass and the grinding
wheel’s center of rotation. In both cases, the imbalance is given in terms of a mass multiplied by a distance,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 Manual Balance Control uses two or threemovable variable angle balance weights, which can be
independently positioned. These weights are usually
supplied by the grinder manufacturer and are typicallylocated in grooves in the wheel flange or wheel hub.
The system consists of the SBS microprocessor based
Control Unit, a Vibration Sensor, and an RPM sensor.
Imbalance is expressed as spindle movement or
Unbalanced
Balancedvibration detected from the grinding machine by thesensor. The vibration signal from the sensor is transmitted to the control unit, which filters the signal by RPM.
The control unit guides the user in manually positioning the grinder’s balance weights, so that the amplitudeof the incoming vibration signal is lowered to a user set level of acceptable balance.
1)

Vibration Sensor

SBS Manual Balance Control

3

Environmental Considerations
The SBS Manual Balancer 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 be components
mounted on the machine, such as pumps, motors, drives, etc.
The SBS Manual Balancer 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 thesystem. For adjacent machinery operating at the same frequency, or in phase with that frequency, the system
will not distinguish between vibrations occurring from wheel imbalance and those originating in the adjacentmachine.
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
Manual Balancer can help perform this test (see: Background Vibration section), but cannot remove thesevibrations.
Machine Condition
Grinding machine condition is an important factor in determining the minimum balance level that the SBS
Manual Balancer can achieve. The spindle should be balanced, as well as all components in the spindle drive
train (i.e. belts, pulleys, motor, etc.). The Manual Balancer 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 Manual
Balancer cannot remove vibration resulting from machine condition problems.

System Installation
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 RPM Sensor, the power
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.
The location and installation of the sensor are critical for successful operation of the SBS Manual Balancer.
Because of differing machine characteristics, Vibration Sensor location is specific to the machine model.
4

SBS Manual Balance Control

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 Manual Balancer relies on vibration signals
received from the Vibration Sensor to accurately display the current vibration level in peak-to-peak units, andto balance the grinding wheel. The system employs narrow bandwidth filters that prevent vibration at nonspindle frequencies from being detected. However, in applications where the motor or other machinecomponents 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

Workpiece

Cylindrical orCenterless Grinders

RPM Sensor Installation
The RPM sensor is an inductive proximity sensor. The RPM Sensor must be located in position to detect a
one per revolution hole or protrusion in the spindle or attached rotating parts such as pulley, wheel hub, etc.
A simple hole drilled in a face or OD is often the simplest method of providing such a feature. The Sensor
should be mounted using the supplied mount bracket, and positioned so that the face of the sensor is about
1mm from the high surface, and placed so that the hole or protrusion will pass directly under the sensor. The
RPM SENSOR alignment feature under MENU will assist in verifying proper position. CAUTION – Oncethe sensor is positioned, clamp the mount bracket tightly to the sensor body to lock it in place, and prevent
movement under vibration which might allow the sensor to contact the rotating surface.

SBS Manual Balance Control

5

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 some machine
CNC systems. All the basic concepts, data presentation, and parameter settings described are also presented in the
IVIS interface but organized visually with some differences. Read the IVIS Operations manual in conjunction withthis product manual when using the IVIS user interface.

Front Panel Controls

1

5

2

3

4

The above figure 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 the unit
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 is connected tothe 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 isused 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.

6

SBS Manual Balance Control

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 the startup
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.
SBS Manual Balance Control

7

Rear Panel Connections
The figure following shows the rear of the control. The following connections are located on the rear panel of
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 the box,
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 card has three connections on the rear panel of the control.
9a)
9b)
9c)

8

RPM CONNECTION. Connects to the RPM sensor. SB-5543 3-pin. SB-5544 12-pin.
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 Manual Balance Control

SB5580
The SB-5580 is a smaller chassis version of the SB-5500 control series, which has been designed for the spaceconstraints of mounting inside the electrical cabinet of the grinding machine. It supports four device cards of thesame series (S1-S4), and requires power input of 24 VDC, with the same specification as SB-5500. 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

SBS Manual Balance Control

9

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 system settings
for individual balancer cards, and to perform certain optional functions. Use the up and down arrows 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
balance settings are presented consecutively.
1. LIMIT target level. The level that the user will try to achieve during a Balance cycle, which is provided
as a reference for the user only. The Balance system will always perform a “best possible balance”, andresults will depend on accuracy of weight location during the entire balance cycle. This value should be
set at least 0.2 micros higher than the background vibration level.
2. TOLERANCE level. This level sets the high end of the acceptable balance range. When this level isexceeded 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.
3. CRITICAL level. This level can be set at a value providing a secondary warning of extreme out of balance
condition that may be damaging to the grinding machine or process. When this level is exceeded a Critical
Balance out of Tolerance (BOT2) error is reported. This signals the operator or machine controller to shut
down the machine. This same error can also be triggered by excessive RPM (see: Critical RPM).
Vibration Units
Press the corresponding button to select from the available vibration units, available in 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 the numerical 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 the user must review
and edit the limit settings to an appropriate number.
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.
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 disables access to the menu via the front panel unless a standard security code is entered. This
ensures that system settings will not be accidentally compromised. The screen displays “ENABLED” when
10 SBS Manual Balance Control

Menu access is unlocked, and “PROTECTED” when menu access is controlled by the access code. The
standard access code is 232123. Once the code is entered and the ENTER button pressed, the MENU selection
is protected. Access to the menu will now require entry of this code. The message MENU ACCESSPROTECTED will be displayed notifying the user that the menu is password protected, and the user will begiven the opportunity to enter the code. Entering an incorrect code will produce the 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.
RPM Sensor
The speed sensor must be correctly positioned opposite toand in line with a rotating trigger feature on the machine.
After installation of all system components, switch on the
SBS control. With the spindle stopped, loosen the mounting
bolts and shift the speed sensor, so that it touches the metalof the mating face on the part that normally rotates (e.g.
spindle, wheel holder, etc). Pull the speed sensor back to thespecified gap of 1 to 3 mm. The system should haverecognized and calibrated the speed sensor. If this is not thecase, chose “RPM SENSOR” from the MENU. A graphic
appears as shown depicting the gap between speed sensor and facing surface. Position the speed sensor so thatthe graphic shows the correct distance.
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 orinterrupt the operation of the grinding machine. To set either limit, use the left arrow button to select digits,
and the up and down arrow buttons to change the selected digit. Press ENTER to save the setting and returnto other screens. To disable either Critical RPM limit, simply reduce the limit setting to zero.

SBS Manual Balance Control

11

Setting Operating Parameters
NEW WHEELThis 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.

MEASUREDVIBRATIONLEVELSCRITICAL

The operating parameters are independently set for each card.
Balance LIMITThe SBS Manual Balancer is designed to balance quickly to a
calculated “best balance” point. The Limit is used only as abenchmark by the user to determine if balance cycles performed
achieve a predetermined target result. The Balance system will
always perform a “best possible balance”, and results will dependon accuracy of weight location during the entire balance cycle. The
Balance Limit is factory set at 0.4 microns of displacement. A
balance level of 1 micron or less is generally considered adequate
for most applications. The lower the balance Limit is set, themore likely it is that environmental noise and slight errors inweight placement will prevent the Limit from being reached.

TOLERANCEOPERATING
RANGE
LIMIT
0.2 MICRONSBACKGROUNDNO BALANCE SYSTEM IS CAPABLE OF BALANCING
THE GRINDING WHEEL TO A VALUE BELOW THE BACKGROUND LEVEL. Trying to set thebalance Limit below background levels will result in long or failed balance cycles. Since the backgroundvibration level is often a product of floor transmitted vibrations, these levels may change as adjacent machines
are put into or out of service. Set the balance Limit during periods when the system will receive themaximum 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.
Balance TOLERANCE
This operator defined setting establishes an upper-limit for normal process vibration for the system. Whenreached, this setting will indicate the need to rebalance. Indications given on the front 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

Balance CRITICALThis operator defined setting establishes an operational upper safety limit of vibration for the system. Whenreached, this setting will cause and 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.
12 SBS Manual Balance Control

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 ofdisplacement most directly reflects the movement of the grinding wheel and therefore impact of vibration on
the work piece. Use the VIBRATION UNITS Menu item to select the desired option.

Balancing
Prepare for balance cycle
A balance cycle is an iterative or repetitive process of manually positioning the grinder’s balance weights
according to the system’s directions, and then checking the results of each move. Important – successfulbalance cycles depend on careful and accurate placement of balance weights at the locations specified by thebalancer. The user must provide the following markings on the grinder in order to allow for successfulbalancing:
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 canbe 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.
6

10

9

8

7

1
2

3

4

5

This is the balance screen. The first screen shows the display in single plane balance mode, and the second
shows the display in 2-plane balance mode. The first group of screen elements shown are specific to a single
balance plane and are duplicated in the 2-plane view.
Balance screen elements for single balance 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.
SBS Manual Balance Control

13

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 the current
settings for Balance Limit and Balance Tolerance. A different linear scale applies between the Balance
Tolerance level and the Critical Balance level.
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.

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 the lettercode of the corresponding error(s).

Edit and navigation conventions
The following shows the conventions in operation throughout the 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

14 SBS Manual Balance Control

Cancel to exit.

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 is different
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.
Balance setup – balance screen

There are a number of user selectable operating settings for the balance function, which are found under the
button on the balance screen. Press the
button on the balance screen to enter this menu. The Setup
menu will time out after 1 minute of inactivity and the unit will return to the 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.

SBS Manual Balance Control

15

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.
16 SBS Manual Balance Control

Scale Direction. This is a separate setting from Chamber Direction.
It sets the direction of the scale used to position the balance
weights relative to the wheel’s direction of 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. The low vibration level where the balance
process is considered to be finished.
Balance process – balance screen
Pressfrom the balance screen to start a complete 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 the main
screen. If the resulting vibration is above the Balance Limit, a new balance solution will be provided to correct
for the residual unbalance. Every subsequent balance solution is a Trim Phase. A Trim phase is just an
iteration of the Solution Phase, performed if more adjustment is needed.
Four parts of each 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.
c. Start Spindle. The spindle must be started.
d. Measure. The vibration can be measured for calculating the next phase.

SBS Manual Balance Control

17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 – balance screen
Press thebutton from the balance screen to start a Trim Balance operation. This skips the Initial and Test
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 balance cycle (Initial and Test) allow the SBS System to determine and save essential
information regarding the condition of the grinder and how changes in balance weights will effect machinebalance. Assuming the conditions on the machine do not change (RPM, wheel size, etc.) then subsequentbalance 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 willproduce 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) or masschanges). In this case the operator should verify the Scale Direction setting is still accurate, then press
tostart a new complete Manual Balance operation.
Important - Performing a Balance will only be successful if the user is very careful in following each step of
the process, and making certain that weight movements and additions are performed accurately. Both the massof weight used and the positioning of weights used will determine the accuracy of the balance achieved.
History screens
The History screens allow the user to view previously completed phases in the balance process, and even to
perform again one of these previous steps. Press the
key to access the history screens. When viewing thehistory screens, a large “H” is displayed at the upper right. The use the and buttons to step backward or
forward thru the balance phases (note the phase number display). The
button will be displayed when it ispossible to repeat the operation of a particular balance phase (any phase 3 or higher).

18 SBS Manual Balance Control

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

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

to indicate that the machine isInitialStart Spindle - This screen prompts you to start
the spindle so a vibration measurement can betaken. The
icon and the “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 thatpressing
will access the history screens.
InitialMeasure Vibration - Once the rpm hasstabilized, the Next arrow will appear on thescreen and flash. Pressing
will store thismeasurement into memory.
The Back arrow on the screen indicates thatpressing
will access the history screens.
Test

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

SBS Manual Balance Control

19

Test

Apply Weights - The test weight
shown on the screen must be added at thezero position. The value of the test weight isshown.
During the Test Phase pressing theEdit Button(noteicon) will
display this screen, allowing the test
weight mass value to be edited. The
weight units can also be selectedfrom g, oz, lb, kg, and none.

When done editing press OK to savechanges and return to the Apply
Weights screen.
Apply Weights - Once the spindle isstopped, this screen shows the operator whereto 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 same process applies to 2-weightbalance.
Pressready.

to indicate that the machine is
Test

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

20 SBS Manual Balance Control

Test

Measure Vibration - Once the rpm hasstabilized, the next arrow will appear on thescreen and flash. Pressing
will store thismeasurement into memory.
The Back arrow on the screen indicates thatpressing
will access the history screens.
Solution

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

Solution

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

Absolute Weight Solution (=)

Additive Solution(+ )Leave all existing
weights on themachine and only
add what isshown.
Absolute Solution(=)
Remove all test
weights first thenplace weights asshown.
Press
to Toggle between Additive andAbsolute Weight Solution screens. (noteicon on solution screen).

SBS Manual Balance Control

21

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

Press the next button
machine is ready.

to indicate that the
SolutionStart Spindle - The
icon and the“RPM” both flash as a reminder to start
the spindle again.
The Back arrow on the screen indicatesthat pressing
will access thehistory screens.
Solution

Measure Vibration.
Once the rpm hasstabilized, the right arrow will appear on thescreen and flash. Pressing the next button
will store this measurement into memory.
The Back arrow on the screen indicates thatpressing
will access the history screens.
If the resulting vibration is below the Balance
Limit
the balance 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 iterationof the Solution Phase, performed if more adjustment is needed. If changes are made, a newcomplete balance operation should be run by pressing .
One of the following screens may be displayed instead of the Solution screen if the Balance
Solution is difficult to achieve.

22 SBS Manual Balance Control

The top screen shown indicates that either
smaller or larger weights should be used.
Press
button to return to history screens
for an opportunity to use a larger weight andrepeat the Test phase.
The bottom shown screen indicates that thecompensation numbers are very large or small
for accurate display and the weight units in use
may need to change. Press
button to
return to the Apply Weights screen without
making any changes.
The images depict suggestions to improve
results by increasing or decreasing the weight
and/or changing the balance type between two
and three weights.
Press
button to return to the Apply
Weights screen without making any changes.

SBS Manual Balance Control

23

Balance steps for dual plane
For simplicity, the balance steps above are shown for single plane balancing. The steps for two-plane balancing
are identical, but weight placement screens and measure vibration screens will show information for each of
the two planes, with the top of the screen indicating one plane and the bottom of the screen indicating thesecond 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 the weightplacements in sequence as directed.

24 SBS Manual Balance Control

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 thegrinder 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 indentify 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 vertical scaleis linear, and based on the peak value, displayed at the top of the plot. The horizontal scale is logarithmic. 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 thelast 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

Peak values display

Hardwire Interface
SBS Manual Balance Control

25

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 andconfigurations 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 inthe 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 8 mA at
a voltage between 10 and 26 volts, AC or +DC,referenced to the SB-5500 hardwire interface
power supply common. The common pins areinternally connected to chassis and earth
ground. The inputs are deactivated byremoving the connection to the power or signal
source.

SB5518 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 four outputs consist of optically isolated,
Out: FBSI-NO
solid state, single-pole/double-throw relays.
Out: BIP-R
Out: BIP-NO
These contacts may be used to supply an output
Out: BIP-NC
SUP-COM
signal by connection to a voltage source
Shell (Shield Ground)supplied by the customer. The contacts areelectrically 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/b-throw 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 relay.
Input Pin Names and Functions
Pin#

Name

Description

17

FPI

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

26 SBS Manual Balance Control

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 a 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 a 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
relay is energized while a 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
is in 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 Manual Balancer 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
Low Balance Limit, and vibration spectrum analysis. The following description applies to all SB-5500 models.
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 tothe 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) 2009, Accretech SBS, Inc.<CR>
V0.02<CR>
SBS Manual Balance Control

27

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

Response1)

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>
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>
28 SBS Manual Balance Control

Slot Card Commands (Cards are Individually Controlled)
Command

Response
XX/NotResponding

G[sss][,[eee]]

U=units

Meaning/ Example:
A card is installed in the slot, but is not responding to the system.

1XX/Not Responding<CR>
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
GE
L[x.xx[,[y.yy][,[z.zz]]]]

Lx.xx,y.yy,z.zz

Cancel Vibration Spectrum.
<Esc>1GX<CR> Stop Slot 1 Vibration Spectrum Program.
Graphic 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>
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 microns, FBSI indicatesbalance 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>

SBS Manual Balance Control

29

Software Operation Summary
The Software interface capability of the SBS Manual Balancer allows for automated balancing and testing ofa 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 andvibration level readouts from the status line can be used to provide a remote indication of the machine operating
speed, and characteristics. This data may be used to indicate when a grinding wheel needs to be changed orother maintenance performed.

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

30 SBS Manual Balance Control

BALANCE LIMIT

BOT LEVEL

BOT2 LEVELGRINDING OR
DRESSING
CYCLE

1= RELAY CLOSED= RELAY OPEN

ALLOW 2 SEC.
FOR RELAY TO OPEN

BOT SET “ ACTIVE”

1

WHEEL BALANCED

BOT SET “ INACTIVE”

BALANCE IN
PROGRESSVIBRATION PLOT AT
SPINDLE FREQUENCYBEWEENGRINDING
CYCLES

0.2 MICRONS (minimum recommended)

SBC Not Active On
Manual Balancer

SBC ALTERNATE (Not Active)

SBC Not Active On
Manual Balancer

SBC SIGNAL (Not Active)

BIP RELAY

BOT2 RELAY1

BOT(Not Active)

BEWEENGRINDING
CYCLESBACKGROUND VIBRATION LEVELBOT Not Active On
Manual Balancer

GRINDING OR
DRESSINGCYCLEVIBRATION
EXCEEDSTOLERANCE

CNC/System Timing Diagram
1(ALLOW 5MS FOR RELAY TO OPEN)

2)

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

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

3)

GRINDER ON

POWER UP

CNC/System Timing Diagram

SBS Manual Balance Control

31

System Maintenance
MaintenanceOperator maintenance of the SBS Manual Balancer is restricted to replacement of the line fuse in the Control
Unit. Cable schematics for the RPM Sensor and Vibration Sensor follow in order to assist with minor repair
or wiring connection work. If further service is required, contact your SBS Manual Balancer source, or
Accretech SBS, Inc.
Vibration Sensor SchematicPart Number SB-14xx
BACKSHELLOUTER SHIELDBLACK 20 AWG (19/32)
RED 20 AWG (19/32)

CIRCULAR MALE DINPIN VIEWRPM Sensor Schematic
Schematic shown for Part Number SH-1778
Alternate RPM Sensors Utilize pin 2 (15VDC)
BACKSHELL
15VDC

OUTER SHIELDBLACK 20 AWG (19/32)
N/C

GND

RPM
OUT

CIRCULAR MALE DINPIN VIEW

32 SBS Manual Balance Control

RED 20 AWG (19/32)

Trouble Shooting Guide
SBS Return/Repair Policy
Accretech SBS, Inc. policy is to give highest priority to the service needs of our customers. We recognize thecost of machine downtime and strive to deliver same day repair of items arriving by overnight delivery at ourfacility. Because of the complication and delays involved with international shipments, customers outside thecontinental 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. can not ensure prompt and accurate completionof your repair needs. Failure to obtain an RMA number may result in substantial delay.
This guide is designed to help you if you experience problems with your SBS Manual Balancer.
Step 1
If the Control Unit displays any error messages, refer to the Displayed Error Messages section of
the manual for explanation of the message. Contact Accretech SBS, Inc. for assistance as required. Whenreporting a service issue, please indicate the Error Code (letter) of all displayed Errors.
Step 2
Verify that the unit is receiving an RPM signal from the RPM sensor. If no RPM signal is shownwith the spindle rotating, adjust the position of the RPM sensor (see manual section: RPM Sensor Installation).
If position adjustment of the RPM sensor does not produce an RPM signal, the RPM Sensor and Control Unit
should both be returned for repair.
Step 3
If the Control Unit displays an RPM signal, but no vibration signal, check the Vibration Sensor.
Verify that the Sensor is firmly seated on the machine, its magnet is firmly tightened in place, and it is properly
connected to the Control Unit. Also check that the Sensor's position on the grinding machine accuratelyreflects machine balance (see: Vibration Sensor Location section).
If you continue to receive no reading from the Vibration Sensor, the Vibration Sensor and Control Unit shouldboth be returned for repair.
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 manual sections on Environmental
Considerations, and Setting Operating Parameters)
If you continue to have problems after following these four steps, contact Accretech SBS, Inc. or your
SBS Manual Balancer 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 forthe system main board and display board. The LED status indicators on the left side of the display willsequence 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 Manual Balance Control

33

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 is cleared,
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

Message

Definition

ActionA

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

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

Clears automatically. Verify operating speed of thegrinding machine. If the machine is running above
30,000 RPM, contact your SBS Manual Balancer
source for application consultation. If the machine
is running within the operating speed limits, and thiserror message persists, this indicates a failure of
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.

Clears automatically when sensor detected.

Vibration
Sensorpresence not detected.
This could be caused
by a defective sensor
or by no sensor being
connected.

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.

AUX POWER DEFECTSHORT – CHECK CABLE
AND CONNECTORS SEE MANUAL

Checked continuously.

Cleared automatically.

24V Auxiliary Supply
low – fuse open.

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.

B

C

G

Test:
Check for shorts in cables andconnectors and re-initiate system check.
Unplugging one cable at a time from the control canhelp isolate the problem component. If the error
persists return Control Unit and cables for repair.

34 SBS Manual Balance Control

ErrorCode

Message

Definition

ActionH

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

Checked continuously.

Cleared automatically or by pressing Auto button.

15V Auxiliary supply
low – fuse open.

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.

NO RPM SIGNALCHECK CABLESCHECK SPINDLE

Checked continuously.

Cleared automatically or by pressing Auto button.

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

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.

CIRCUIT FAILURE
UNABLE TO MEASUREVIBRATION
SEE MANUAL

Checked continuously.

Cleared automatically.

Signalacquisition
circuit failed.

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

INTERNAL VOLTAGE ERROR

Checked continuously.

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

JL

A Fault with one of theinternal
power
supplies of the Control

SupportFor 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 Manual Balance Control

35

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
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 toexceed +/-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

36 SBS Manual Balance Control+ /- 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

RPM Sensor
SH-1778
SH-1779

RPM Sensor
RPM Extension Cable

Controls/Options
SB-24xx-L
SB-43xx
SB-5500
SB-5512SB-5518
SB-5522
SB-5543

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
Manual Balance 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 Cordset
Power Cordset (Germany)
Power Cordset (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 Manual Balance Control

37

38 SBS Manual Balance Control

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

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

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.

Cover Screw
M4x6

Cover

6)

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.

Inside View of Rear Panel

5)

Slot Screw
4-40x3/16

Card

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

Blank Slot CoverAppendix C: Balancer Card Installation

4)

DC Input
Option:21-28 VDC

USB
DeviceProfibus
DP

INACTIVE
INACTIVE

BOT2
RELAY

BIP
RELAY

Customer CNC / PLC

Use SB-5500 Or
Customer Supplied PowerFPI INPUT+15V DC OUT

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

Customer
Supplied
10-26V
AC or +DC

INACTIVE

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

Ethernet
TCP/IP

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]

RPM
RELAY

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

FBSI
RELAY

N/C for SH-1778
ALTERNATE RPM
SENSORS USE PIN 2

Extension Cable
SH-1779 11ft [3.4m]

RPM Sensor
SH-1778 11ft [3.4m]

Appendix D: System Connection Diagram

SBS Manual Balance Control

39