8.
Signals
8.1
Feedback signals via output contacts (binary)
The output contacts can be used to indicate operation modes of the actuator or the
controls as binary signals.
The signals are assigned according to the order. Example:
Output contact open = end position CLOSED not reached
Output contact closed = end position CLOSED reached
Collective fault signal
Switches: 1 NC and 1 NO (standard)
Designation in the wiring diagram: K9
The collective fault signal appears if one of the following events occurs (default
configuration):
●
Torque fault: The set torque was exceeded before reaching an end position.
(This signal can be activated/deactivated via a switch in the controls.)
●
Thermal fault: Motor protection has tripped, i.e. the motor is overheated.
●
Phase failure: One phase is missing (3-ph AC motors only).
●
PTC tripping device: Test complete
4 output contacts:
Switches: 1 NC (standard)
Designation in the wiring diagram: K5, K6, K7, K8
Default configuration:
●
K5: Selector switch is in position Remote control (REMOTE).
●
K6: Selector switch is in position Local control (LOCAL).
●
K7: End position OPEN reached
●
K8: End position CLOSED reached
8.2
Feedback signals (analogue)
— (Option) —
If the actuator is equipped with a position transmitter (potentiometer or RWG), an
analogue position feedback signal is available.
Valve position
Signal: E2 = 0/4 – 20 mA (galvanically isolated)
Designation in the wiring diagram: E2 (actual value)
30
SAExC 07.1 – SAExC 16.1/SARExC 07.1 – SARExC 16.1
Signals
AMExB 01.1
