9300 Servo PLC
System blocks
2.12 MCTRL_MotorControl
2-56
L
ServoPLC EN 2.0
2.12.17.1 OC1 - short-circuit monitoring
This monitoring function protects the controller.
No. Monitoring function Display System variable TRIP Message Warning Off
011 Short-circuit OC1 MCTRL_bS hortCircuit_b •
• Default setting ü Setting possible
The monitoring is activated in the event of short-circuit in the motor phases. It can also be a
short-circuit in the windings of the machine.
• The monitoring can also be activated when switching the mains if an earth fault occurs.
• If the monitoring is triggered, the drive controller must be disconnected from the mains and
the short-circuit must be eliminated.
2.12.17.2 OC2 - earth-fault monitoring
This monitoring function protects the controller.
No. Monitoring function Display System variable TRIP Message Warning Off
012 Earth fault OC2 MCTRL_bEarthFault_b •
• Default setting ü Setting possible
All 9300 Servo PLCs are equipped with earth-fault detections.
• In the event of an earth fault, the controller must be separated from the mains and the earth
fault must be eliminated.
Possible earth fault causes:
• Short-circuit to frame of the machine
• Short-circuit of a phase to the screen
• Short-circuit of a phase to PE
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