Festo MPA-L Series, Description

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4. Commissioning
4−3
Festo P.BE−MPAL−EN en 1008NH
4.1 General Information
4.1.1 Prior to commissioning
·
Switch off the power supply before connecting or discon
necting plug connectors (otherwise functional damage).
·
Only commission a valve terminal that has been mounted
and wired completely.
·
Make sure that there is a sufficient supply of fresh air
(cooling) for the following operating conditions:
When the maximum number of valves are fitted
When the maximum operating voltage is applied
When the solenoid coils are constantly under stress
·
Note the specifications concerning the medium.
4.1.2 Pressure build−up 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
If 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
supply (3 ... 8 bar). Branch the pilot air supply before
the soft−start valve (see Fig.4/1).