Bernard Controls AQ1L, Startup Manual

Page: 12 / 64

English
11
If the LED continues to blink after the automatic process, it is
indicating the following errors:
Tim
es
bl
in
kin
g
2 3 4 5
Configuration
was not
correctly
loaded
4/20 mA signal
is lost
Actuator is
blocked
during travel
•
Rotation direction is
wrong
• Actuator got to a
position out of
travel limits
•
Actuator is pumping
How to set closing direction and fallback position
You can use SW2 dip switches to set closing direction (dip switch 1)
and fallback position (dip switches 2 & 3) in case signal is lost.
This setting must be done with power off.
Closing
direction
1
Fallback
position
3
ON OFF
ON Clockwise
2
ON Stayput Closed
OFF
Counter-
clockwise
OFF
Open Stayput
8 TORQUE LIMITING DEVICE
In case of excessive torque on the actuator, a torque limitation
system shuts down actuator.
A LED behind switch board is lighting up when this protection is ON.
How to re-start the actuator if torque limiter went off
1. Switch power supply off.
2. Check if the issue comes from valve (stiff point or jamming)
or mechanical stops (over-travel or wrong mechanical stop
settings).
3. Fix the issue.
4. Switch power supply on and electrically operate actuator in
both directions.

LED remains lit a few seconds after power supply is switched off.
Wait those few seconds before switching power supply on again and
operating actuator.
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