Carrier 19XRV Start-Up, Operation And Maintenance Instructions Manual page 97

Hermetic centrifugal liquid chillers with pic iii controls 50/60 hz hfc-134a
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Table 17 — Fault Code Descriptions and Corrective Actions (cont)
Fault Type indicates if the fault is:
1 — Auto-resettable
2 — Non-resettable
3 — User-configurable
4 — Normal Fault
VFD FAULT
FAULT TYPE
CODE
225
Input Amp
Imbalance
226
Input Volt
Imbalance
227
AC Line Lost
228
Line Frequency
229
Rectifier
Checksum
230
Inverter HW
Unknown 4
231
Rectifier HW
Unknown 4
232
Rctfr Not OK
233
Precharge closed
234
Precharge open
235
Rctfr Pwr Board
236
Rctfr I/O Board
237
Not At Voltage 4
238
Rectified Not Log
In 4
239
Power Phased ACB 4 Input power is phased ACB rather than
LEGEND
DPI
— Drive Peripheral Interface
EPROM — Erasable, Programmable, Read-Only
FLA
— Full Load Amps
IGBT
— Insulated Gate Bipolar Transistor
I/O
— Inputs/Outputs
NP
— Nameplate
NOTE: Reliance parameter numbers are indicated by ( ).
DESCRIPTION
Input phase current imbalance exceeded
limits.
Input voltage imbalance exceeded limits.
Input power Lost.
Line frequency not in the range of
47-63 Hz.
The checksum read from the board does
not match the checksum calculated.
Inverter section of power structure hard-
ware reported unexpected fault.
Rectifier portion of power structure hard-
ware reported unexpected fault.
A fault was detected in the rectifier other
than one specifically decoded.
Precharge was closed when it should be
open.
Precharge was open when it should be
closed.
Drive rating information stored on the
power board is incompatible with the Main
Control board.
The checksum read from the board does
not match the checksum calculated.
Loss of communication to I/O board.
Board failure.
The rectifier did not regulate to the desired
bus voltage within the defined time.
Rectifier took too long to connect to
inverter.
ABC.
ACTION
Check for loose connection in input power
wiring.
Check for problem in input power
distribution.
a. Verify proper input voltage.
b. Check line sync board and fuse.
c. Check AC line I/O board.
d. Verify connection between boards.
Verify connection between AC Line Sync and
AC Line I/O boards.
a. Restore defaults.
b. Reload user set if used.
Check wiring harness.
Check wiring harness.
Look at rectifier parameter 243 to see fault
code.
a. Check AUX contacts on precharge.
b. Check input bit 0 in rectifier parameter 216
to view status of input.
c. Check wiring.
d. Check precharge resistors and fuses.
a. Check AUX contacts on precharge.
b. Check input bit 0 in rectifier parameter 216
to view status of input.
c. Check wiring.
d. Check precharge resistors and fuses.
Load compatible version files into drive.
a. Cycle power to the drive.
b. If problem persists, replace drive.
Cycle power.
a. Cycle power.
b. If fault repeats, replace I/O board.
Replace rectifier power board and/or rectifier
control board.
a. Check the cabling between the communica-
tions interface and the two control boards.
b. Connect one DPI device at a time to see if
one of the DPI devices is causing the
problem.
c. Replace the communications interface.
d. Replace the rectifier control board.
Switch two of the input power phases.
97
ICVC FAULT
STATE
209
216
210
222
206
206
206
200
206
206
206
206
206
206
206

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