Lenze Drive PLC Developer Studio 9300 Servo PLC (V8.x) Uživatelský manuál stáhnout pdf (Strana 80)

2.12 MCTRL_MotorControl (node number 131)

9300 Servo PLC

System blocks

2−66

9300 Servo PLC EN 5.0

2.12.17.1 OC1 − short−circuit monitoring

This monitoring function protects the drive controller.

Error

Monitoring function System variable

Possible responses

No. Display TRIP Message Warning FAIL−QSP Off

x011 OC1 Short circuit MCTRL_bShortCircuit_b 

 Lenze setting

 Setting possible

Monitoring is actuated in the event of a short circuit in the motor phases. This can also be caused

by an interturn fault in the machine.

 Monitoring can also respond during power−up if an earth fault occurs.

 If monitoring responds, the drive controller has to be disconnected from the mains and the

short circuit has to be eliminated.

2.12.17.2 OC2 − earth−fault monitoring

This monitoring function protects the drive controller.

Error

Monitoring function System variable

Possible responses

No. Display TRIP Message Warning FAIL−QSP Off

x012 OC2 Earth fault MCTRL_bEarthFault_b 

 Lenze setting

 Setting possible

The 9300 Servo PLC is equipped with earth−fault detection as standard.

 If monitoring is actuated, the drive controller has to be disconnected from the mains and the

earth fault has to be eliminated.

Possible causes of an earth fault:

 Short circuit to frame of the machine

 Short circuit of a phase to the shield

 Short circuit of a phase to PE

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Lenze Drive PLC Developer Studio 9300 Servo PLC (V8.x) Uživatelský manuál Strana 80