4.2 Locating faults
Impairment of function
When you switch on the compressed air supply or
when you have tested the individual valves, you can
learn the following about the operating status of the
pneumatic system.
Operating status of the
pneumatic system
Valve position Error treatment when compressed
air has been switched off
Air comes out...
– of common tubing
connections
– of work tubing connections
– between the modules
– basic position
– switch position
– basic position
• Check the seal or
tubing fitting
• When switching on againrgulate
separate auxiliary pilot air 3 to 8
bar
Valve or pneumatic system
– does not react as expected
– does not react
– does not react
– switch position
– switch position
– basic position
• Check tubing
• When switching on again,
check operating pressure
(e.g. pressure zones)
• Return for servicing
– Check regulator connection
(apply pressure > 3 bar to
regulator)
4. Commissioning
CPV... 9802 4-9
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