Burkert Type 8793 - Manual (Page 28)

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Fluid connection
Type 8792, 8793
Single-acting actuators - control function A or B
Connection:
working connection A1
to actuator
A2 sealing
Connection:
working connection A2
to actuator
A1 sealing
Fig. 17: Connection A1 Fig. 18: Connection A2
13.1.2 Double-acting actuators
Actuator system
Safety end positions after failure of the
electrical
auxiliary power
pneumatic
auxiliary power
up
down
lower
chamber
upper
chamber
→
Connection
according to “Fig.
19”
not defined
up = lower chamber
of the actuator to A2
down = upper
chamber of the
actuator to A2
Control function I
Tab. 7: Safety end positions - double-acting actuators
Double-acting actuators - Control function I
Connection:
Working connection A1 and A2
to actuator
Safety end position:
up = lower chamber to A2
down = upper chamber to A2
Fig. 19: Connection with CFI
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