Instructions On Commissioning; Before Commissioning; Pressure Increase In The Overall Supply - Festo CDVI-DN Description

4. Commissioning
4.1

Instructions on commissioning

4.1.1 Before commissioning

4.1.2 Pressure increase in the overall supply

4-4
Switch off the power supply before connecting or discon-
•
necting plugs (otherwise this could lead to functional
damage).
Commission only a valve terminal which has been fitted
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and wired completely.
Make sure that there is a sufficient supply of fresh air
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(cooling) for the following operating conditions:
– When the maximum number of valves are fitted
– When the maximum operating voltage is applied
– When the solenoid coil is constantly under stress
Please observe the following instructions on building up
•
pressure in the overall supply.
Warning
If the pressure build-up of the pilot air supply is too slow
or delayed, this may cause the actuators to perform
sudden unexpected movements under the following condi-
tions:
– When the compressed air is connected via a soft-start
valve (gradual pressure build-up) and
– When there are electric signals (e.g. after EMERGENCY
STOP).
This can cause damage to the machine or system and even
injury to persons.
Operate the valve terminal with an external pilot air sup-
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ply (3 ... 8 bar). Branch the pilot air supply before the
soft-start valve (see Fig. 4/1).
Festo P.BE-CDVI-EN en 1202e