Festo CPV -GE-DN2-8 Electronic Manual page 44

1. Installation
1-30
Please note
Check within the framework of your EMERGENCY STOP
circuit, to ascertain the measures necessary for putting
your machine/system into a safe state in the event of an
EMERGENCY STOP.
– Switch off the load voltage of the valves and output
modules in the secondary circuit of the power unit.
– Switch off the compressed air supply to the valve
terminal.
Due to energy being stored in the input circuit of valve
terminals, there may be a delay when the load voltage is
switched off before the valves are switched off.
Take this into consideration as follows:
– Register the fact that the load voltage is switched off
by means of an input signal in the controller.
– Block the control signal of the valves by locking the
output signal with the input signal "load voltage".
Festo P.BE-CP-DN2-EN en 0107NH