ABB 3HAC17484-9/02

ABB 3HAC17484-9/02

You use this parameter to specify the end position to which the reset spring of the pneumatic actuator drives the valves and fittings in the event that the auxiliary power fails. 

The corresponding end stop is determined during Autoadjust. If, however, only the control parameters are determined (STANDARD, see parameter ADJ_MODE), the spring action must be entered manually. 

Select the direction of rotation of the sensor shaft (looking at the open housing), if the device is in safe position as a result of the spring force (actuator exhausts via OUT1). For double-acting actuators, the spring action has the same effect as ventilating pneumatic output OUT2. 

CLOCKW     Stop reached turning clockwise 

CTCLOCKW     Stop reached turning counterclockwise

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