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VIFB13 - 03/05
3.1 GENERAL CONNECTING PRINCIPLES
9809b
3. Installation
WARNING
Before installation or maintenance work is
carried out, the following must be switched off:
•
the compressed air supply
•
the power supply to the electronic
components (pin 1)
•
the power supply to the outputs/valves
(pin 2)
You thereby avoid:
•
uncontrolled movements of loose tubing
•
undesired
movements of the connected
actuators
•
undefined switching states of the electronic
components
3-3
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