- The actuator stops and performs a few degrees of travel back.
valve in case of excessive torque.
In this case, if the actuator is not in an explosive area, open the cover and check the leds on the main board. If the red led is blinking, that means that the actuator has suffered an excessive torque.
To resolve the problem, check the coupling between the actuator and the valve and ensure that no solid part prevents the valve closing, then reset the actuator switching it off and switching it on.
N.B.: In order to optimize the installation, it’s strongly advised to connect the feedback relay (terminals D1 and D2).
2. The opening or closing feedback information doesn’t work.
The two motor control switches (2 lower normally closed switches) stop the actuator as soon they are open. In order to give an information, the feedback switches (2 upper normally open switches) must be already closed. They must anticipate the rotation.
To resolve the problem, turn the two upper cams 5° more than the lower cams (counter-clockwise for the white cam and clockwise for the black one).
N.B.: an incorrect motor control cams setup can damage the actuator.
It’s strongly advised to refer to video tutorials “Standard quarter-turn actuator cams setting”.
