Filter
Top Products
21
Table 6
— Powerflex 755 Fault Code Descriptions and Corrective Actions (cont)
VFD
FAULT
CODE
ON VFD
HIST
SCREEN
ICVC
FAULT
STATE
FAULT TYPE DESCRIPTION CORRECTIVE ACTION
38
220
Phase U to Gnd
GROUND FAULT
Check the wiring between the drive and the
motor.
Check motor for grounded phase.
Check Motor terminals. d. Replace drive.
39 Phase V to Gnd
40 Phase W to Gnd
41
246
Phase UV Short
GROUND FAULT
Check the wiring between the drive and the
motor.
Check Motor terminals.
Replace drive.
42 Phase VW Short
43 Phase WU Short
44 206
Phase UNot
GROUND FAULT (no LF2 equivalent)
Check the wiring between the drive and the
motor.
Check Motor terminals.
Replace drive.
45 206 Phase VNot ToGnd
46 206
Phase WNot
55 NONE Inverter Overtemp
The temperature sensor on the main control
board detected excessive heat.
Check that VFD refrigerant isolation valves are
open.Check VFD refrigerant strainer
61 206 Shear Pin 1 See VFD Fault Code 15 See VFD Fault Code 15
62 206 Shear Pin 2 See VFD Fault Code 15 See VFD Fault Code 15
64 206 Drive Overload Drive is overloaded
Check for high entering water temperature or low
condenser water flow. Check current settings in
VFD_CONF screen.
65 206 OW TrqLvlTimeout See VFD Fault Code 15 See VFD Fault Code 15
77 206 IR Volts Range See VFD Fault Code 15 See VFD Fault Code 15
78 206
FluxAmpsRef
Rang
See VFD Fault Code 15 See VFD Fault Code 15
79 206 Excessive Load
Motor did not come up to speed in the allotted
time
Check that guide vanes are closed completely.
Check for high entering water temperature or low
condenser flow.
Repeat Autotune
80 206 AutoTune Aborted See VFD Fault Code 15 See VFD Fault Code 15
87 206 IXo VoltageRange
Ixo voltae calculated from motor nameplate data
is too high.
Re-enter motor nameplate data in VFD_CONF
screen.
91 206 Pri VelFdbk Loss See VFD Fault Code 15 See VFD Fault Code 15
93 206 HW Enable Check See VFD Fault Code 15 See VFD Fault Code 15
94 206 Alt VelFdbk Loss See VFD Fault Code 15 See VFD Fault Code 15
95 206 Aux VelFdbk Loss See VFD Fault Code 15 See VFD Fault Code 15
96
206 PositionFdbkLoss See VFD Fault Code 15 See VFD Fault Code 15
97 206 Auto Tach Switch See VFD Fault Code 15 See VFD Fault Code 15
100 206 Parameter Chksum
The checksum read from the board does not
match the checksum calculated.
Press ICVC reset.
Check VFD_CONF parameters.
Cycle power to the drive.
107 NONE Replaced MCB-PB
The main control board was moved to a different
power structure. Data set to default values.
Press ICVC reset.
Check VFD_CONF parameters.
Cycle power to the drive.
113 206 Tracking DataErr Internal data error.
Press ICVC reset.
Cycle power to the drive
124 206 App ID Changed Application firmware changed. Verify application version.
141 206 Autn Enc Angle P78 [Encdrlss AngComp] is out of range See VFD Fault Code 15
142 206 Autn Spd Rstrct See VFD Fault Code 15 See VFD Fault Code 15
143 206 Autotune CurReg See VFD Fault Code 15 See VFD Fault Code 15
144 206 Autotune Inertia See VFD Fault Code 15 See VFD Fault Code 15
145 206 Autotune Travel See VFD Fault Code 15 See VFD Fault Code 15