FMS EMGZ621A, Operating Manual, Page: 4 / 40

Operating Manual EMGZ621A
4
2 Definitions
Offset: Correction value for compensation of the zero point difference. Thanks to the offset, it
is ensured that a force of 0N will generate a signal of zero exactly.
Gain: Amplification factor for the measuring signal. Use of an appropriate value will adjust
the force sensor signal to the tension feedback value exactly.
Strain gauge: Electronic component that will change its resistance while its length has
changed. Strain gauges are used in the FMS force sensors for acquisition of the feedback
value.
Subprint: Electronic extension module which can be plugged to the main board of the
electronic unit if required. That way, the possibilities of the electronic unit can be extended
easily.
3 System Components
An EMGZ621A system consists of the following components (refer also to fig. 1):
Force sensors
•
For mechanical/electrical conversion of the tension force
•
Force measuring bearing
•
Force measuring roller
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Force measuring journal
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Force measuring bearing block
Electronic unit EMGZ621A
•
For supplying the force sensors and amplifying of the mV signal
•
Two separated analogue inputs for the sensors of a single measuring point
•
With operation panel for parametrization
•
Digital inputs and outputs
•
With robust aluminium housing
•
Supports connection of external feedback displays
•
Interface RS232
•
Interface CAN-Bus, PROFIBUS, DeviceNet
(Variants and options in italic text)