Rockwell-automation 22A PowerFlex 4 Custom Firmware - DA Option Uživatelský manuál stáhnout pdf (Strana 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.

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

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Rockwell-automation 22A PowerFlex 4 Custom Firmware - DA Option Uživatelský manuál Strana 4