PROCESSMONITORINGFOR
GRINDING ANDDRESSING
PROCESSES

ExactControl™ Cardwith IVIS Operator Software
The SBS ExactControl Card has been developed to meet
today’s requirements for comprehensive process monitoring. Six
acoustic emission sensors can be connected, two can be ­operated
simultaneously. It can be plugged into the SB-5500 or SB-5575
controllers, which are also capable of automatic and manual­balancing, hydro-balancing and cards for basic acoustic emission
monitoring.
The ExactControl Card is multi-channel capable and has Profibusand Ethernet interfaces, and analogue and digital inputs/outputs.
With this card, power, spindle current, vibration, temperature,
torque and speed, as well as information from the controller,e.g. alarms and positions can be used individually or in parallelfor ­process ­monitoring.
A micro SD card is integrated for data storage and records allgrinding cycles in a continuous loop to its memory. In a three-shiftoperation, all process data can be recorded for at least the last
three months for process analysis. Each grinding cycle is recordedwith a date and time stamp and can be viewed and analyzed­individually and in its entirety. In this way, various process moni­
toring strategies can be tested and developed later on the basisof the recorded data.
IVIS (intelligent visualization) is the PC-based control software
for the SB-5500 and SB-5575.
IVIS provides easy-to-use operation and simple integration. Via
IVIS the process data can be visualized and the devices can beconfigured. Seven possible starting sources as well as two parallel
channels of the ExactControl Card can be displayed and managed.
With the IVIS MiniView, the process monitoring is always visible,
even when the machine screen is in operation or other software
is running.

Eine Produktlinie der Schmitt Industries, Inc.

ExactControlTM Card with IVIS Operator Software

Examples of Monitoring Strategiesof the ExactControl™ Card

ExactGap

All strategies are self-learning. Reference values are saved and parameters are automatically set in each learning cycle.
ExactGap: Gap-elimination with background noise suppression andadaptive threshold response to reduce the air-grinding time.
• Automatic contact recognition to reduce the air-grinding time andto improve the performance of the grinding cycle.
• Automatic idle tracking and background suppression to improve
evaluation sensitivity and safety. Disturbances e.g. of coolants, drives, motors, axial drives and of others machines, are taught and do
not lead to wrong results. As an example, higher bearing noise, e.g.
by increasing speeds are zeroed.

ExactDress• The response threshold can be chosen statically or adaptively (selflearning).
• The screen scaling can be fixed or set to automatic zoom.
ExactDress: Signal pattern recognition for dressing straight or profiled grinding wheels.
• Safe and trouble-free dressing process monitoring using acoustic
emission sensors enables the detection of improper dressing processes and increases the quality and reproducibility of workpieces.

ExactIntegral• The grinding cycle is only started when all segments are within thespecified tolerances (all segments green).
ExactIntegral: Material removal monitoring during the grinding
process.
• Detection of material removal and evaluation with operator-specified
minimum and maximum values, by evaluation of the area under theprocess signal.
• Reliable monitoring despite possible signal ﬂuctuations due to meanvalue formation.

ExactTime

ExactTime: Detecting the minimum contact time during grinding
and/or dressing.
• Monitors a signal threshold adjusted by the machine operator andthe minimum permissible cycle time of grinding processes.
• If the signal does not exceed a defined threshold in sufficient time,
an error is displayed and passed on to the controller.

For more information on SBS products, see AccretechSBS.com to find your local SBS distributor or Representative, or call Accretech SBS, Inc.

Eine Produktlinie der Schmitt Industries, Inc.

Accretech SBS, Inc.
2451 NW 28th Aenue
Portland, Oregon 97210
USA
Sales@AccretechSBS.com
Telephone: +1 503.595.4270
Fax: +1 503.595.4271© 2020 Accretech SBS, Inc. All rights Reserved. Printed in USA. 140924 SBS Dynamic Balance System is a registered trademark of Accretech SBS, Inc.