Operating Manual EMGZ 321.EIP
19.10.2017
6
2
System Description
2.1
Product Range
The tension measuring amplifier series EMGZ21 is available in two versions:
●
EMGZ321._ with standard analogue outputs
●
EMGZ321._.EIP with analogue outputs and integrated EtherNet/IP interface
Both versions are available in three different housing / mounting options:
●
EMGZ321.R rail mount housing
●
EMGZ321.S panel mount housing
●
EMGZ321.W wall mount housing
2.2
Block Diagram
Fig
. 1: Block diagram EMGZ321
E321002e
2.3
Functional Description EMGZ321
The EMGZ321 is a double channel strain gauge amplifier for a single measuring
point. The material tension can be measured on both sides of the measuring roller
independently.
The 2 force sensors of the measuring point measure the tension force in the
material and transmit the measuring value as a mV signal to the electronic unit
EMGZ321. The electronic unit amplifies the mV signal of each force sensor
independently. This signal will be fed to the A/D converter. The microprocessor does
then all application specific calculations such as offset, gain, low-pass filter, limit
switches, etc.
A sum value (A+B) and a difference value (
׀
A-B
׀
) are calculated from the force
values of the sensors A and B. The resulting feedback values are shown in the
display in [N] or the chosen unit. In addition, the feedback values are provided at the
