Regada UP 0, Installation, Service And Maintenance Instructions, Page: 40 / 59

38 UP 0, UP 1, UP 2, UP 2.4, UP 2.5
5.3 Troubleshooting
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In case of a mains failure the EA stands in the position where it was before the failure occurred. If needed
the EA can be reset using the manual control (with the handwheel). When necessary EA can by manually
operated (hand wheel), at doing this, pay attention to keep the movement of the EA output part within the
range of the set stroke so as to avoid loosing the adjustment of the limit position switches or position
transmitter or regulator. After supply voltage recovery EA is prepared for operation.
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In case of a failure of a part of the EA the part can be replaced by a new one. The exchange is to be
committed by the producer or a contracted service firm.
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In case of an EA failure, witch cannot be eliminated directly in operation, follow instructions for under-
guaranty and after-guaranty service.
Failure Cause Troubleshoot
1. No voltage on the electric
motor connectors. Check connection and voltage
presence. There are no revolutions of
motor rotor when operating
the push-buttons.
2. No voltage on the control part. Check connection of the control part.
1. Incorrect setting-up of the
switches. Perform adjustment. The EA fails to stop at the
limit positions.
2. The microswitch is defective Replace the microswitch for a new one
and adjust.
The EA stops at the mid-
position. There is an obstacle in the valve
or part of it seizes. Perform reversing of the EA, move it to
the original direction and, in the case
that the failure repeats, repair the
armature.
1. The LEDs fail to operate. Replace the LEDs for new ones. There is no indication of
reaching these positions in
the final positions.
2. Incorrect adjustment of the
position signal switches. Adjust the position signal switches.
In case that some EA failures still
remain, contact the service centres.
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Note: If the EA has to be dismantled follow the procedure of the Chapter “Dismantling”
The EA can be dismantled to be repair purpose by qualified and trainer persons only! The training can
be preformed by the producer or by a contracted service firm.
6. Accessories and Spare Parts
As accessories the handwheel is packed with the product.