Carrier 50JC04-06 Service And Maintenance Instructions page 30

ERROR CODE FAULT DESCRIPTION
E-01 Compressor Phase Over Current
E-02 AC Input Over Current (SW)
E-03 DC Bus Over Voltage (SW)
E-04 DC Bus Under Voltage
E-05
AC Input Over Voltage
E-06
AC Input Under Voltage
E-07
Inverter Desaturation
E-09
High Pressure Switch Fault
E-12
Compressor Power Module Over
Temp
E-13
PFC-IGBT Over Temp
E-14 Compressor Startup Fault
E-17 DC Voltage Low
E-18 Compressor Phase Over Current
(Intermediate)
Table 9 — Converter Board Error Codes
DRIVE MODBUS REGISTER
Reg.78|80 Bit0
Reg.78|80 Bit1
Reg.78|80 Bit2
Reg.78|80 Bit3
Reg.78|80 Bit4
Reg.78|80 Bit5
Reg.78|80 Bit6
Reg.78|80 Bit8
Reg.78|80 Bit11
Reg.78|80 Bit12
Reg.78|80 Bit13
Reg.79|81 Bit0
Reg.79|81 Bit1
30
ACTION/CAUSE
1. Check the U/V/W connections on the drive side.
2. Check the compressor motor windings.
3. Check the compressor is operating within specified
limits.
4. Sensor on Drive not reading properly - Replace
Drive.
1. Check that the line voltage is no more than 15%
below the specified voltage for the drive. Check the
line voltage for noise.
2. Check the compressor is operating within specified
limits.
3. If the problem persists, then it is possibly a drive
component issue. Replace the drive.
1. Check that the line voltage is no more than 15%
above the specified voltage for the drive.
2. Check the DC bus voltage if it is >385VDC.
3. Check the compressor is operating within the
specified limits.
4. If the problem still persists, then it is possibly a
drive component issue. Replace the drive.
1. Check that the line voltage is no more than 15%
below the specified voltage for the drive.
2. Check the DC bus voltage if it is <385VDC.
3. Check the compressor is operating within the
specified limits.
4. If the problem still persists, then it is possibly a
drive component issue. Replace the drive.
1. Check that the line voltage is no more than 15%
above the specified voltage for the drive.
2. Check the DC bus voltage if it is >385VDC.
3. Check the compressor is operating within the
specified limits.
4. If the problem still persists, then it is possibly a
drive component issue. Replace the drive.
1. Check that the line voltage is no more than 15%
below the specified voltage for the drive.
2. Check the DC bus voltage if it is <385VDC.
3. Check the compressor is operating within the
specified limits.
4. If the problem still persists, then it is possibly a
drive component issue. Replace the drive.
1. Check if all input cables are connected or any line
is missing.
2. Check that the line voltage is no more than 15%
below the specified voltage for the drive.
If the problem still persists, then it is possibly a
drive component issue. Replace the drive.
1. Condensing Pressure beyond limit. system issue.
2. Check the high pressure switch.
1. Verify proper airflow over the heat-sink of the drive.
Remove any obstructions.
2. Check that the compressor is operating within
specified limits.
3. Check the mounting screws on the drive, make
sure they are tight. If the fault, persists replace the
drive.
1. Verify proper airflow over the heat-sink of the drive.
Remove any obstructions.
2. Check that the compressor is operating within
specified limits.
3. Check the mounting screws on the drive, make
sure they are tight. If the fault, persists replace the
drive.
1. Cycle power on the drive.
2. If the problem persists replace the drive.
1. Check that the line voltage is no more than 15%
below the specified voltage for the drive.
2. Check the DC bus voltage if it is <385VDC.
3. Check the compressor is operating within specified
limits.
4. If the problem still persists, then it is possibly a
drive component issue. Replace the drive.
1. Check the U/V/W connections on the drive side.
2. Check the compressor motor windings
3. Check the compressor is operating within specified
limits.
4. Sensor on Drive not reading properly - Replace
Drive.