Commissioning; General Information; Prior To Commissioning; Pressure Build−Up In The Overall Supply - Festo MPA-L Series Description

4. Commissioning

4.1

General Information

4.1.1 Prior to commissioning

4.1.2 Pressure build−up in the overall supply
Festo P.BE−MPAL−EN en 1008NH
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.
·
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).
4−3