Parker BD-E Series, Руководство пользователя

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SECTION 5. MAINTENANCE & TROUBLESHOOTING 33
The overtemperature LED will come on if the drive or motor is operating outside its specified
continuous rating, requiring the duty cycle to be reduced.
If the motor feedback connector becomes disconnected, the thermal switch will appear to have
opened and the drive will de-energise, indicating an overtemperature fault. This fault condition is
latched until the drive is reset.
Incorrect Operation
Noise from Motor or Unstable Motor Operation
This is usually caused by the Damping or Time Constant controls requiring adjustment. Re-
adjustment of either of these two controls should cure this. If none of these checks has isolated
the problem then substitution of the drive (if possible) should be used to prove whether or not the
drive module is at fault.
Motor Creep
This is usually caused by an incorrect setting of the Balance control, so first check this setting by
confirming that there is zero velocity command on V1 and V2 inputs. Then adjust the Balance
control until the motor shaft is stationary.
Ensure that all signals are supplied in twisted pairs or screened cables.
If none of these steps resolves the problem then try substitution of the drive module to prove if
the drive is at fault.
Internal Fuses
Three internal fuses are fitted to limit circuit damage in the event of an internal failure. Should
any of these fuses blow the drive should be returned for repair. Users should not replace fuses.