GF PA11 - Safety Information; Due Care Required Of Operator

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• controlthesevalvestotheOPEN and CLOSED po-
sitions via a built-in solenoid valve. The solenoid
valve must be either supplied ex GF works or already
mounted by the customer,
• indicatethesepositionsOPEN and CLOSED via an
electric signal to the system control, if the actuator
is equipped for this with the respective subassembly,
• enablecontrolofthesepositionsthroughmanual
operation in case of failure in the compressed air
supply, if the actuator is equipped for this with the
respective subassembly.
The actuator is not intended for uses other than those
stated here. Prohibited in particular are:
• controlpressuresabove7.5bar,
• manualoperationwithforceshigherthanpermitted
according to prEN12570 (maximum retention forces
for operation of valves),
• operatingsolenoidvalvesandpositionfeedbackunits
under water.
The actuator can only function properly if it has been
connected professionally as per the wiring diagrams on
page 66 for double acting opera tion and for fail-safe
OPEN or fail-safe CLOSE operation, respectively.
4. Safety Tips
4.1 Due care required of the operator
The pneumatic actuators described herein were de-
signed and manufactured with consideration to a risk
analysis and the respective harmonized European stan-
dards. They correspond to the latest technology and
meet the mentioned prescribed safety standards.
Warning