Ebro EP 501 B Guide Rapide page 21

Type EP 501 B
Pneumaticconnection
Single-acting actuators - control function A or B
Connect working
connection A1 to actuator
Close A2
Fig. 10: Connection A1
Connect working
connection A2 to actuator
Close A1
Fig. 11: Connection A2
9.3.2 Double-acting actuators
Safety positions after failure of the
Actuator system
auxiliary power
→
upper
chamber
lower
up = lower
chamber
chamber of the
up
actuator to A2
down
down = upper
chamber of the
actuator to A2
Control function I
Tab. 13: Safety positions - double-acting actuators
double-acting actuators - control function I
Fig. 12: Connection for SFI
english
pneumatic
auxiliary power
Connection
see "Fig. 12"
not defined
Connect working
connection A1 and A2 to actuator
Safety position:
up = lower chamber to A2
down = upper chamber to A2
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