Troubleshooting - Fault And Protection Table - York YXV series Installation Manual

5284792-UIM-A-0317
TABLE 9: Troubleshooting – Fault and Protection Table
Fault and Protection
Compressor phase over current
Compressor phase current fold back timeout
AC input over current
AC input current sampling fault
DC bus over voltage
DC bus under voltage
AC input over voltage
AC input under voltage
Power module over temp
PFC-IGBT over temp
Lost rotor position
Compressor phase current imbalance
Microelectronic fault
EEPROM fault
Power module temp low or sensor open fault
DC Bus Voltage Low
AC input current fold back timeout.
Mod bus communication lost
Power module temp high
PFC-IGBT high temp
PFC MCU and DSP communication lost
COM MCU and DSP communication lost
PFC-IGBT temp low or sensor open fault
Power module temp. fold back timeout
Compressor model configuration error
High pressure sensor type configuration error
AC input voltage sampling fault
DC bus voltage sampling fault
Fault limit lockout
18
Check and Handling
1. Check the U/V/W connections on 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 the drive.
Check if the compressor is operating outside the specified speed range.
1. Check the line voltage if it is < 187VAC.
2. Check the line voltage for noise.
3. Check the compressor is operating with in specified limits.
4. If the problem still persist, then it's possibly a drive component issue. Replace the drive.
Sensor on drive not reading properly.
1. Check the line voltage if it is > 265VAC.
2. Check the DC bus voltage if it is > 385VDC.
3. Check the compressor is operating with in specified limits.
1. Check the line voltage if it is < 187VAC.
2. Check the DC bus voltage if it is < 385VDC.
3. Check the compressor is operating with in specified limits.
1. Check the line voltage if it is > 265VAC.
2. Check the DC bus voltage if it is > 385VDC.
3. Check the compressor is operating with in specified limits.
1. Check the line voltage if it is < 187VAC.
2. Check the DC bus voltage if it is < 385VDC.
3. Check the compressor is operating with in specified limits.
1. Verify proper airflow over the heatsink of the drive. Remove any obstructions.
2. Check the compressor is operating with in specified limits.
3. If the problem still persists, replace the drive.
1. Check the U/V/W connections on drive side & compressor side.
2. Check the compressor motor windings.
1. Check the DC bus voltage > 187VDC.
2. Power cycle the drive.
3. If problem persists, replace the drive.
Temperature sensing device on the drive are possibly defective.
If problem persists, replace the drive.
1. Check the line voltage if it is < 187VAC.
2. Check the DC bus voltage if it is < 385VDC.
3. Check the compressor is operating with in specified limits.
1. Check the line voltage if it is < 187VAC.
2. Check the compressor is operating with in specified limits.
3. If problem persists, replace the drive.
1. Check mod-bus communication cable connections.
2. Check the communication parameters are set right.
3. Power cycle the drive.
4. If problem persists, replace the drive.
1. Verify proper airflow over the heatsink of the drive. Remove any obstructions.
2. Check the compressor is operating with in specified limits.
3. If the problem still persists, replace the drive.
1. Check mod-bus communication cable connections.
2. Check the communication parameters are set right.
3. Power cycle the drive.
4. If problem persists, replace the drive.
1. Verify proper airflow over the heatsink of the drive. Remove any obstructions.
2. Check the compressor is operating with in specified limits.
3. If the problem still persists, replace the drive.
Compressor model and configuration code do not match.
Pressure sensor and configuration code do not match.
Sensor on drive not reading properly.
Sensor on drive not reading properly.
Certain faults have a trip limit, see mod bus map for details
Johnson Controls Unitary Products