Switching On The Operating Voltage - Festo CPV Series Manual

2. Commissioning

2.1.3 Switching on the operating voltage

Common
voltage supply
Separate
voltage
supplies
2-6
PLEASE NOTE
Observe also the switching-on instructions in the
PLC manual for your controller.
When you switch on your controller, it will automatically
carry out a comparison between the NOMINAL and
ACTUAL configurations. It is important for this configu-
ration run that:
• the specifications on configuration are complete and
correct
• the voltage supplies for the PLC and for the field bus
slaves are switched on either simultaneously or in
the sequence stated below.
When switching on the voltage supply, please observe
the following points:
If there is a common voltage supply for the control sys-
tem and all the field bus slaves, power should be
switched on via a central power unit or a central switch.
If the control system and the field bus slaves have sep-
arate voltage supplies, you should observe the following
sequence when switching on:
1. Switch on the operating voltage for all the field bus
slaves.
2. Switch on the operating voltage for the control sys-
tem.
CP-DN8 9806NH