FMS CMGZ411, Operating Manual

Page: 14 / 40

Operating Manual CMGZ411/421
14
8 Wiring
Wiring the controller
Firstly, the whole control system has to be wired. The terminal assignment of the controller is shown in the
diagrams below.
The force sensor have to be wired using 2*2*0.75mm
2
shielded twisted-pair cable to avoid signal noise.
Special importance must be given to the earth connection. The shield of the connection cables to the sensors
has to be connected at the controller side only. At the sensor side, it has to stay open to prevent ground
circuits. It is also important to ground the gnd terminal of the controller only to a single point. The Ground
terminals of the controller and the reference input of the drive resp. brake unit are connected!
Caution:
Bad earth connection may cause electric shock to persons, malfunction of the total system or damage of the
electronic unit! It is vital to ensure that proper earth connection is done.
Digital inputs / outputs
The digital inputs are activated by applying an external 24VDC source.
The digital outputs (open collector, gnd is switched) refer also to this 24VDC source.
The digital inputs and outputs are galvanic insulated from the other circuitry.
8.1 Wiring diagram of the web tension controller CMGZ411
C411001e