Carrier WeatherExpert 48LC 04 Series Installation Instructions Manual page 44

Single package rooftop gas heating/electric cooling unit with puron (r-410a) refrigerant
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FAULT CODE
FAULT NAME IN PANEL
CONFIG FILE
27
SERIAL 1 ERR
28
EFB CON FILE
29
FORCE TRIP
30
EFB 1
31
EFB 2
32
EFB 3
33
MOTOR PHASE
34
OUTP WIRING
35
SYSTEM ERROR
101-105
SYSTEM ERROR
201-206
PAR HZRPM
1000
PAR PFA REFNG
1001
PAR PFA IOCNF
1002
PAR AI SCALE
1003
PAR AO SCALE
1004
PAR PCU 2
1005
PAR EXT RO
1006
PAR FBUS
1007
PAR PFA MODE
1008
PAR PCU 1
1009
OVERRIDE/PFA CONFLICT Override mode is enabled and PFA is activated at the same time. This cannot be done because PFA
1010
Table D — FAULT CODES (cont)
DESCRIPTION AND RECOMMENDED CORRECTIVE ACTION
Internal configuration file has an error. Contact Carrier.
Field bus communication has timed out. Check fault setup (3018 COMM FAULT FUNC and 3019
COMM FAULT TIME). Check communication settings (Group 51 or 53 as appropriate). Check for poor
connections and/or noise on line.
Error in reading the configuration file for the field bus adapter.
Fault trip forced by the field bus. See the field bus reference literature.
Fault code reserved for the EFB protocol application. The meaning is protocol dependent.
Fault code reserved for the EFB protocol application. The meaning is protocol dependent.
Fault code reserved for the EFB protocol application. The meaning is protocol dependent.
Fault in the motor circuit. One of the motor phases is lost. Check for motor fault, motor cable fault,
thermal relay fault, or internal fault.
Error in power wiring suspected. Check that input power is wired to drive output. Check for ground
faults.
Error internal to the drive. Contact Carrier and report the error number.
Error internal to the drive. Contact Carrier and report the error number.
Parameter values are inconsistent. Check for any of the following:
2001 MINIMUM SPEED > 2002 MAXIMUM SPEED
2007 MINIMUM FREQ > 2008 MAXIMUM FREQ
2001 MINIMUM SPEED / 9908 MOTOR NOM SPEED is outside of the range: -128/+128
2002 MAXIMUM SPEED / 9908 MOTOR NOM SPEED is outside of the range: -128/+128
2007 MINIMUM FREQ / 9907 MOTOR NOM FREQ is outside of the range: -128/+128
2008 MAXIMUM FREQ / 9907 MOTOR NOM FREQ is outside of the range: -128/+128
Parameter values are inconsistent. Check that 2007 MINIMUM FREQ is negative, when 8123 PFA
ENABLE is active.
Parameter values are inconsistent. The number of programmed PFA relays does not match with
Interlock configuration, when 8123 PFA ENABLE is active. Check consistency of RELAY OUTPUT
parameters 1401 through 1403, and 1410 through 1412. Check 8117 NR OF AUX MOTORS, 8118
AUTOCHANGE INTERV, and 8120 INTERLOCKS.
Parameter values are inconsistent. Check that parameter 1301 AI 1 MIN > 1302 AI 1 MAX and that
parameter 1304 AI 2 MIN > 1305 AI 2 MAX.
Parameter values are inconsistent. Check that parameter 1504 AO 1 MIN > 1505 AO 1 MAX and that
parameter 1510 AO 2 MIN > 1511 AO 2 MAX.
Parameter values for power control are inconsistent: Improper motor nominal kVA or motor nominal
power. Check the following parameters:
1.1 < (9906 MOTOR NOM CURR * 9905 MOTOR NOM VOLT * 1.73 / PN) < 2.6
Where: PN = 1000 * 9909 MOTOR NOM POWER (if units are kW) or PN = 746
* 9909 MOTOR NOM POWER (if units are HP, e.g., in US)
Parameter values are inconsistent. Check the extension relay module for connection and 1410
through 1412 RELAY OUTPUTS 4 through 6 have non-zero values.
Parameter values are inconsistent. Check that a parameter is set for field bus control (e.g., 1001 EXT1
COMMANDS = 10 (COMM)), but 9802 COMM PROT SEL = 0.
Parameter values are inconsistent. The 9904 MOTOR CTRL MODE must = 3 (SCALAR SPEED)
when 8123 PFA ENABLE activated.
Parameter values for power control are inconsistent or improper motor nominal frequency or speed.
Check for both of the following:
1 < (60 * 9907 MOTOR NOM FREQ / 9908 MOTOR NOM SPEED < 16
0.8 < 9908 MOTOR NOM SPEED / (120 * 9907 MOTOR NOM FREQ / Motor poles) < 0.992
interlocks cannot be observed in the override mode.
44

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