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Operating and installation instructions
Thrust actuator ARI-PREMIO
®
-Plus 2G
5.6.3 Condensation on the printed circuit board
A condensation sensor is mounted on the printed circuit board of the basic module. If condensation
occurs, a 4 W board heater is switched on as long as the motor is idle.
The power resistors installed in the heater are soldered onto the board.
The function is deactivated if the printed circuit board heats up to more than 60°C.
5.6.4 "Y-in" signal failure
With analogue control, an interrupted control signal is detected by the electronics (both 4 to 20 mA
and 0 to 10 V). If the control signal fails for longer than ten seconds, the red
"Failure"
LED is set
and the actuator is switched to
"Stop"
.
As soon as a control signal is detected at the input again for longer than ten seconds, the red LED
goes out and the actuator returns to the desired position
5.6.5 Double control at the 3-point input
The 3-point control signal takes priority over the analogue input signal, e.g. for fail-safe or anti-
freeze protection. If a signal is present at both inputs (double control), the control mode is
interrupted.
5.6.6 Priorities
The actuator is controlled according to the following priorities:
Priority
Control
High
- Reset
- Initialization (cancelled by reset)
- Manual: Stop / up / down
- Failure
- Ext. input L-down
- Ext. input L-up
Low
- Y-input