Rockwell Automation 22A PowerFlex 4 Custom Firmware - DA Option User Manual
Page 4
To avoid the ground fault F13, the parameter A109 needs to be adjusted in addition to
using a specified ferrite core. This feature is available with the custom firmware above
version 51.02.
A109 [Ground Fault Avoid]
In some cases, the ground fault F13 occurs, especially when two motors are
connected to one PowerFlex4 drive and the one motor is connected / disconnected
by switching on / off a contactor, while the other motor is running.
To avoid the F13 fault, all three motor leads shall be wrapped through a specified
ferrite core (TDK ZCAT3035-1330 or 1321-M001). Additionally, parameter A109
can be used to select the F13 fault-monitoring mode.
Values Description
0
This is default setting. Ground faults will be monitored by both
hardware and software.
Hardware detection is delayed 5us, compared to standard firmware
V3.05.
1
Hardware monitoring is switched off, and ground faults are
monitored only by software.
2
Both hardware and software monitoring are switched off. This can
only be used when the drive system has additional external ground
current protection.
PowerFlex 4 Custom Firmware
4
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