D - Assembly - Installation; Connection; Start Up - Lincoln Electric MOTOVAR MV 20 Safety Instruction For Use And Maintenance

8695 5832 / M

D - ASSEMBLY - INSTALLATION

1 - CONNECTION

2 - START UP

WARNING
 Regulation with tacho generator.
When the variable speed unit-motor assembly is switched on for the first time, the
latter may race, no control being possible. Switch off the 42V power supply then
check the following points :
- Short circuit in the tacho generator
- Faulty connection between the variable speed unit and the tacho generator,
- Tacho generator connected on the wrong side.
When the motor runs properly at a speed that is proportional to the setpoint voltage
but in the direction opposite to the one required, it is necessary to switch off the
current and to interchange the 2 wires of the motor as well as the 2 wires of the
tacho generator.
 Regulation without tacho generator.
If the configuration staple (J3) is not properly positioned, the motor can race, no
control being then possible.
Immediately switch off the 42V power supply and put the staple (J3) in the other
position.
MOTOVAR MV20
D-7