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GEMÜ 1441 cPos-X
electronic system. The electronic system then compares the
actual value of the valve with the set value specified and read-
justs the valve accordingly in the event of a control error. The
optional passive actual value output provides the valve posi-
tion that is currently determined (in the same direction ac-
cording to the control diagram) as an analogue value 4–20
mA. For correct operation, the positioner must first be calib-
rated (initialized) to the connected process valve. This takes
place via the automatic initialization function, which can be
activated by placing one of the (standard bipolar) magnets on
the marked (INIT) programming position (deactivated when
the wireless connection is active). Once this has been carried
out, the positioner automatically switches to the normal oper-
ating mode and responds to the specified external set value
signal. Alternatively, the entire commissioning process can be
carried out via the app
4.5 Fail safe function
The product has a fail safe function, which switches the out-
puts in a controlled manner if the pneumatic air supply or the
electrical supply voltage fails (see “Fail safe functions“,
page 21). This fail safe function does not replace the re-
quired plant-specific safety devices. The product is not a
safety controller.
5 Correct use
WARNING
Improper use of the product
▶
Risk of severe injury or death.
▶
Manufacturer liability and guarantee will be void.
●
Only use the product in accordance with the operating
conditions specified in the contract documentation and in
this document.
The product with integrated pilot valves is designed for linear
actuators, has a microprocessor-controlled intelligent position
control as well as an analogue travel sensor system (poten-
tiometer) and is connected in a force-locking way with the ac-
tuator spindle by means of a mounting kit (spring, operating
bush). The valve position and the integrated travel sensor can
be monitored via the electrical connections. The pneumatic
actuator is directly operated and controlled by means of the
pilot valves.
●
Use the product in accordance with the technical data.
5 Correct use
