14
Evo Flex Manual
6.2 Frequency Conversion Board Fault Table
Protection/Fault
Fault Display
Reason
Elimination Methods
IPM Overcurrent
Shutdown Fault
F00
IPM Input current is large
Check and adjust the current
measurement
Compressor Activation
Failure
F01
Lack of phase, step or drive hardware
damage
Check the measuring voltage, check
frequency conversion board
hardware
PFC Fault
F03
The PFC circuit protection
Check the PFC switch tube short
circuit or not
DC Bus Overload
F05
DC bus voltage<Dc bus Overload – voltage
protection value
Check the input voltage
measurement
DC Bus Underload
F06
DC bus voltage<Dc bus underload –
voltage protection value
Check the input voltage
measurement
AC Input Underload
F07
The input voltage is under, causing the
input current to be too low
Check the input voltage
measurement
AC Input Overload
F08
The input voltage is over, causing the
input current to be too high
Check and adjust the current
measurement
Input Voltage Sample Fault
F09
The input voltage sampling fault
Check and adjust the current
measurement
Communication Failure
between DSP and PFC
F10
DSP and PFC connect fault
Check the communication
connection
Communication Fault
(DSP)
F11
DSP and Inverter board communication
failure
Check the communication
connection
Communication Fault
(Inverter Board)
F12
Communication failure between inverter
board and main board
Check the wire connection between
remote inverter board and main
board
IPM Overheat Stop
F13
The IPM module has overheated
Check and adjust the current
measurement
Weak Magnetism Alarm
F14
Compressor magnetic force is not enough
Input Voltage Lacking
Phase
F15
The input voltage lost phase
Check and measure the voltage
adjustment
IPM Current Sample Fault
F16
IPM Sampling electricity is fault
Check and adjust the current
measurement
Sensor Fault of
Module/Radiator
F17
The transducer is overheating
Check and adjust the current
measurement
IGBT Power Device
Overhear Alarm
F20
The transducer is overheating
Check and adjust the current
measurement
Overload Alarm
F21
The compressor input current is too large Check and adjust the current
measurement
AC Input OverCurrent
Alarm
F22
Input current is too large
Check and adjust the current
measurement
EEPROM Fault Alarm
F23
MCU Error
Destroyed EEPROM
Activation Ban Alarm
F24
MCU Error
LP 15V Underload Fault
F25
The V15V is overload or undervoltage
Check the V15V input voltage in
range 13.5V~16.5 or not
IGBT Power Device
Overheat Fault
F26
Transducer temperature is too high
Check and adjust the current
measurement
