Switching on the operating voltage
PLEASE NOTE
Observe also the switching on instructions in
the manual for the PLC/PC.
When the control system is switched on, the
controller compares the nominal and the actual
configuration. For the configuration run it is
important that:
• the specifications on configuration are as
complete as possible and are correct;
• the power supply to the controller and to the
connected slaves is made either simulta-
neously or in the correct sequence.
Please observe the following points regarding
switching on the power supply:
• Common supply: If the control system and
the valve terminal have a common power
supply, they should be switched on via a
common power supply unit or common cen-
tral switch.
• Separate supply: If the control system and
the valve terminal have separate power
supplies, they should be switched on in the
following sequence:
1. operating voltage for valve terminal
2. operating voltage for the control system
VIFB13 - 03/05 4. Commissioning
4-6
9701 NH
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