HBM MP85A - Reference Potential for Control Inputs;Switch Test Inputs

Electrical connection
26 A0293_06_E00_03 HBM: public MP85A
The control outputs are available at screw terminals 3 and 4 and are
electrically isolated from the internal supply voltage:
S At screw terminal 3: Control outputs 1 … 4
S At screw terminal 4: Control outputs 5 … 8 (for versions with ‐S only)
5.4.3 Reference potential for control inputs/switch test inputs
IN 3
IN
Screw terminal 3
Switch event/test specimen
24 V (10 … 30 V)
0 V
MP85A process controller
Fig. 5.3 Connection of control input/switch test input
The control inputs are available at screw terminals 3 and 4 and are
electrically isolated from the internal supply voltage and from the control
outputs.
S At screw terminal 3: Control input 1
S At screw terminal 4: Control inputs 2 … 5 (MP85A//MP85A-S only)
For the control inputs, connect an external reference potential ( IN ), to which
the control input signals refer.
Information
The digital inputs of the MP85A process controller are edge-controlled on the
transition from 0V to control voltage (e.g. 24V). The set digital input function is
implemented only once with the rising edge. The subsequent presence of
control voltage does not cause any further action.