E - Maintenance; Troubleshooting - Lincoln Electric MOTOVAR MV 20 Safety Instruction For Use And Maintenance

8695 5832 / L

E - MAINTENANCE

1 - TROUBLESHOOTING

SITUATION
The motor does not run
(the red led D25 is off)
The motor does not run
(the red led D25 is lit on)
The motor races
The motor starts slowly
The motor does not reach the required
speed
MOTOVAR MV20
If the motor is OK,
- Check the power supply of the variable speed unit
- Check motor connections
- Check that the motor is not jammed
- Check that the setpoint is not at 0
- Check that the variable speed unit is unlocked
- Check that the temperature of the radiator is <70°C
Otherwise : Change the variable speed unit.
This indicates variable speed unit overload.
- Check the absence of short circuit.
- Check that the self of the motor is not too low.
- Check that the intensity limiting is not too high.
- Check the connections of the tacho generator (see
first switching on).
- Intensity limiting too low
- Load of the motor too high
- Check the setpoint
- Variable speed unit has reached intensity limiting
- Check the setpoint
REMEDIES
E-11