Monitoring functions
Configuring monitoring functions
Short circuit monitoring (OC1)
201
EDBCSXS064 EN 4.0
9.3.3
Short circuit monitoring (OC1)
Fault message
Monitoring function
System variable
Possible response
TRIP
Messag
e
Warnin
g
Off
011
OC1
Short circuit
MCTRL_bShortCircuit_b
·
·
Default setting
ü
Setting possible
The monitoring process is activated if a short circuit occurs in the motor phases. This can
also be caused by an interturn fault in the machine.
ƒ
Monitoring can also be actuated at mains connection, if an
earth fault
occurs.
ƒ
If monitoring is actuated, the drive controller has to be disconnected from the
mains, and the short circuit has to be eliminated.
9.3.4
Earth fault monitoring (OC2)
Fault message
Monitoring function
System variable
Possible response
TRIP
Messag
e
Warnin
g
Off
012
OC2
Earth fault
MCTRL_bEarthFault_b
·
·
Default setting
ü
Setting possible
The ECSxS... axis module is equipped with a standard earth fault detection.
ƒ
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 are:
ƒ
Short circuit to frame of the machine
ƒ
Short circuit of a phase to the shield
ƒ
Short circuit of a phase to PE