Technical information

– INTRODUCTION – – INFRANOR V ariable–Speed Drive –
21/04/95
01T00357
17
Page
IV – TROUBLESHOOTING HELP
* NO RESPONSE FROM MOTOR
– No power supply voltage (if auxiliary supply).
– No main power supply voltage.
– Motor wire cut or fuse.
– Power supply fuse.
– Servo–control mode (M.ASS) input not activated.
– Limit switch input not activated.
– No personalization board (PAV module).
* MOTOR CONTROL BUT NO TORQUE
– Potentiometer P4 set to minimum (Imax).
– Wiring fault on personalization board (PAV module).
– Potentiometer P5 set to minimum (leff).
* PREFERENTIAL POSITIONS HELD WITH ALTERNATING
OSCILLATIONS
– Motor wires are badly connected or coupled or even reversed.
– Resolver wrongly positioned with respect to motor or misconnected.
– Number of resolver poles does not comply.
– EPROM does not comply with number of motor poles.
* DISCONTINUOUS OPERATION
– Wire cut on one phase.
* TORQUE WITH POSSIBLE SPEED DRIFT
– No set point.
– Both limit switches are activated.
* THE MOTOR ONLY RUNS AT HIGH SPEED
– Resolver adjustment or connection fault.