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_bShortCircuit_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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