6.2.2
Actuator operation from remote
→
Set selector switch to Remote control (REMOTE).
➥
Now, it is possible to operate the actuator via remote control, via operation
commands (OPEN, STOP, CLOSE) or analogue setpoints (e.g. 0 – 20 mA).
Information
For actuators equipped with positioner, it is possible to optionally select between
open-close duty (REMOTE OPEN-CLOSE) and modulating duty (REMOTE
SETPOINT). Selection is made via REMOTE MANUAL input, e.g. based on a 24 V
DC signal (refer to wiring diagram).
Behaviour in modulating duty for version with positioner:
In case of signal loss of setpoint E1 or actual value E2, the actuator moves to a
preset position. The following reactions are possible:
●
Fail as is: Actuator stops immediately and remains in this position.
●
Fail close: Actuator moves the valve to end position CLOSED.
●
Fail open: Actuator moves the valve to end position OPEN.
The behaviour on loss of signal can be set via a switch in the controls.
27
SAExC 07.1 – SAExC 16.1/SARExC 07.1 – SARExC 16.1
AMExB 01.1
Operation
