Bernard Controls MINIGRAL+ Anleitung Seite 12

3.4 STROKE SETTING - ADJUSTMENT OF OPEN AND CLOSED POSITIONS
In order to perform the stroke setting, it is possible to remove the potentiometer. After replacing
the potentiometer, it is necessary to renew the complete remote position signal setting procedure (see next
paragraph).
Please follow the instructions given in the "Setting of mechanical stops and travel limit switches" paragraph
of the SD range instructions for start-up (ref.TMS300SD) delivered together with the actuator. The cams
to be adjusted are the black and the white one.
3.5 SETTING OF REMOTE POSITION SIGNAL
Drive the actuator carefully to the closed position.
Connect a milliamperemeter or a millivoltmeter on terminals 71,72.
With a screwdriver, adjust the potentiometer until reading 4mA (4-20mA signal),
0mA (0-20mA signal) or 0V (0-10V signal).
Start an actuator opening and check that the signal current/voltage increases.
Drive the actuator carefully to the open position.
Connect a milliamperemeter or a millivoltmeter on terminals 71,72.
With a screwdriver, adjust the potentiometer until reading 20mA (0-20mA and 4-20mA signal)
or 10V (0-10V signal).
The actuator is now ready to operate following an input signal.
3.6 DEAD BAND SETTING
MINIGAM+ control board dead band should be adjusted only if the actuator is "hunting".
In this case, use a small screwdriver to adjust the «Dead Band» potentiometer value until
the actuator stops and stays at the desired position.
4 AUXILIAIRY CONTROL SWITCHES (OPTIONAL)
The OPEN and CLOSED signalling can be managed separately by two separated control switches.
These switches are actuated by brown and grey cams.
They can be connected through terminals 20 to 25as follow :
12
3.5.1 SETTING OF CLOSED POSITION (0%)
3.5.2 SETTING OF OPEN POSITION (100%)
Feedback potentiometer setting