Rockwell Automation GV3000/SE 230VAC 1-20 HP GP & Vector Drive Ver. 6.04 Software Start-Up and Ref. - Manual (Page 124)

4-38 GV3000/SE 230 VAC Drive, Software Reference Version 6.04
P.045 Output Phase Loss Enable
This parameter is
used to enable the
output phase loss
detection diagnostic. Parameter Range: OFF = Disable output phase loss diagnostic
ON = Enable output phase loss diagnostic
Default Setting: ON
Parameter Type: Tunable
Refer also to parameters: N/A
This diagnostic detects phase loss between the drive and the motor. When the
diagnostic is enabled and output phase loss is detected, a drive fault is logged (OPL
is displayed).
The output phase loss diagnostic can be disabled to avoid nuisance faults which
may occur, for example, when a small motor is used with a large Power Module.
P.047 Carrier Frequency (kHz)
This parameter
selects the drive's
carrier frequency. Parameter Range: 2 = 2 kHz Carrier frequency
4 = 4 kHz Carrier frequency
8 = 8 kHz Carrier frequency
Default Setting: Power Module-dependent, see Appendix C
Parameter Type: Configurable
Refer also to parameters: N/A
This parameter can compensate for acoustic noise by allowing adjustment of the
switching frequency of the transistors in the inverter bridge.
Keeping the carrier frequency at 8 kHz will ordinarily provide the quietest motor
operation.