Carrier 19XRV Series Start-Up And Service Instructions page 13

Table 5 — Powerflex 755 Fault Code Descriptions and Corrective Actions (cont)
VFD
FAULT
ICVC PIC6
CODE
FAULT FAULT
ON VFD
STATE STATE
HIST
SCREEN
15 206 449
17 216 446
20 206 449
21 225 445
24 204 442
33 206 449
36 286 438
38
39
220 432
40
41
42 220 449
43
44 206 432
45 206 432
46 206 432
55 NONE 444
61 206 449
62 206 449
64 206 449
77 206 449
78 206 449
79 206 449
80 206 449
87 206 449
91 206 449
93 206 449
94 206 449
95 206 449
96 206 449
97 206 449
100 206 451
106 284 453
107 NONE 451
113 206 451
124 206 451
FAULT TYPE
If this fault appears, there may be a prob-
Load Loss
lem with software configuration.
The DC bus ripple
has exceeded a Line Voltage imbalance
preset level.
TorqPrv Spd Band See VFD Fault Code 15
The current in one or more phases has
Output PhaseLoss
been lost or remains below a preset level.
The drive is not following a commanded
Decel Inhibit deceleration because it is attempting to
limit bus voltage.
AuRsts Exhausted See VFD Fault Code 15
The drive output current has exceeded
SW Overcurrent
the 1 ms current rating.
Phase U to Gnd
Phase V to Gnd
GROUND FAULT
Phase W to Gnd
Phase UV Short
Phase VW Short GROUND FAULT
Phase WU Short
Phase UNot
Phase VNot
GROUND FAULT (no LF2 equivalent)
Phase WNot
Ctrl Bd Inverter The temperature sensor on the main con-
Overtemp trol board detected excessive heat.
Shear Pin 1 See VFD Fault Code 15
Shear Pin 2 See VFD Fault Code 15
Drive Overload Drive is overloaded.
IR Volts Range See VFD Fault Code 15
FluxAmpsRef
See VFD Fault Code 15
Rang
Motor did not come up to speed in the
Excessive Load
allotted time.
AutoTune Aborted See VFD Fault Code 15
Ixo voltage calculated from motor name-
IXo VoltageRange
plate data is too high.
Pri VelFdbk Loss See VFD Fault Code 15
HW Enable Check See VFD Fault Code 15
Alt VelFdbk Loss See VFD Fault Code 15
Aux VelFdbk Loss See VFD Fault Code 15
PositionFdbkLoss See VFD Fault Code 15
Auto Tach Switch See VFD Fault Code 15
Parameter The checksum read from the board does
Chksum not match the checksum calculated.
The main control board did not recognize
Incompat MCB-PB
the power structure.
The main control board was moved to a
Replaced MCB-PB different power structure. Data set to
default values.
Tracking DataErr Internal data error
App ID Changed Application firmware changed.
DESCRIPTION
To reset the processor, cycle power to chiller,
check VFD_CONF settings and save settings
when exiting VFD_CONF (PIC3)/CFGUMVFD
(PIC6) configuration screen.
Check VFD parameters with Drive Explorer.
Check phase-to-phase and phase-to-ground dis-
tribution bus voltage. Increase Line Voltage %
Imbalance in VFD_CONF (PIC3)/CFGUMVFD
(PIC6) screen.
See VFD Fault Code 15
Check Motor Current % Imbalance in VFD_CONF
(PIC3)/CFGUMVFD (PIC6) screen.
Verify input voltage is within drive specified
limits.
Verify system ground impedance follows proper
grounding techniques.
Disable bus regulation P186 and/or add dynamic
brake resistor and/or extend deceleration time
P537 and P538.
See VFD Fault Code 15
Check for excess load, improper DC boost set-
ting, DC brake volts set too high.
Check wiring between drive and motor.
Check motor for grounded phase.
Check motor terminals.
Replace drive.
Check wiring between drive and motor.
Check motor terminals.
Replace drive.
Check wiring between drive and motor.
Check motor terminals.
Replace drive.
Check that VFD refrigerant isolation valves are
open. Check VFD refrigerant strainer.
See VFD Fault Code 15
See VFD Fault Code 15
Check for high entering water temperature or low
condenser water flow. Check current settings in
VFD_CONF (PIC3)/CFGUMVFD (PIC6) screen.
See VFD Fault Code 15
See VFD Fault Code 15
Check that guide vanes are closed completely.
Check for high entering water temperature or low
condenser flow.
Repeat Autotune
See VFD Fault Code 15
Re-enter motor nameplate data in VFD_CONF
(PIC3)/CFGUMVFD (PIC6) screen.
See VFD Fault Code 15
See VFD Fault Code 15
See VFD Fault Code 15
See VFD Fault Code 15
See VFD Fault Code 15
See VFD Fault Code 15
Press ICVC reset (PIC3)/Reset alarm (PIC6).
Check VFD_CONF parameters.
Cycle power to the drive.
Flash with newer Application version software.
Press ICVC reset (PIC3)/Reset alarm (PIC6).
Check VFD_CONF (PIC3)/CFGUMVFD (PIC6)
parameters.
Cycle power to the drive.
Press ICVC reset (PIC3)/Reset alarm (PIC6).
Cycle power to the drive.
Verify application version.
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CORRECTIVE ACTION