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- Translated original instructions -
Operating and installation instructions
Thrust actuator ARI-PREMIO
®
-Plus 2G
4.5.3 Design notes
4.5.3.1 Control signal
- At the 4 - 20 mA signal, from a control signal < 3.6 mA, control signal failure will be detected.
- A cable break is detected in both the current signal 4 - 20 mA as well as the voltage signal 2 - 10 V.
- The control signal range is fixed from 0 - 10 V, resp. 4 - 20 mA. From software version 3.x.x
upwards it is possible to set alternatively the voltage signal for auf 2 - 10 V via the diagnostics
interface and PC. The 2 - 10 V then apply also for the feedback signal. A diagnostics connector
and instructions can be ordered on request.
- The 3 point control signal has a higher priority than the analogue control signal. This can for
example be used for frost protection or a local control.
In a concurrent control in direction OPEN and CLOSED, over the 3-point control signal, the motor
stops, so that the drive no longer follows the analogue input signal.
- The switch positions for control signal type and inversion affects to the analogue input and
feedback signal. There are no separate settings for the input and feedback signal possible.
4.5.3.2 Behavior in control signal failure / error
-
The fail-safe behaviour in case of a control signal failure or a cable break can be set for the
analogue control signal with a 3-step slide switch: OPEN – STOP – CLOSED
.
-
Alternatively, any position between 0 - 100 % can be submitted via the diagnostics interface and
PC. At 101 %, the actuator rests at his most recent position.
In order to specify the fail-safe position using the switches again, you must enter in the software a
value of 102 % for this position.
ATTENTION !
In the same way as in the older software versions (at values between 0-101%), the
slide switch sets three different actuator characteristics that define the relationship
between the input signal and the valve position. For a linear relationship please set this
switch to the lowest position.