evoheat Fusion-i 12, Installation & Operation Manual, Page: 19 / 29

18 EvoHeat Fusion-i Series Manual
7.2 Frequency Conversion Board Fault Table
Protection/Fault Fault
Display
Reason Elimination Methods
Drv1 MOP alarm F01 MOP drive alarm Recovery after the 150s
Inverter offline F02 Frequency conversion board and main board
communication failure
Check the communication connection
IPM protection F03 IPM modular protection Recovery after the 150s
Comp. Driver Failure F04 Lack of phase, step or drive hardware
damage
Check the measuring voltage check
frequency conversion board
hardware
DC Fan Fault F05 Motor current feedback open circuit or short
circuit
Check whether current return wires
connected motor
IPM Overcurrent F06 IPM Input current is large Check and adjust the current
measurement
Inv. DC Overvoltage F07 DC bus voltage>Dc bus over-voltage
protection value
Check the input voltage
measurement
Inv. DC Lessvoltage F08 DC bus voltage<Dc bus over-voltage
protection value
Check the input voltage
measurement
Inv. Input Lessvolt. F09 The input voltage is low, causing the input
current to be high
Check the input voltage
measurement
Inv. Input Overvolt F10 The input voltage is too high, more than
outage protection current RMS
Check the input voltage
measurement
Inv. Sampling Volt F11 The input voltage sampling fault Check and adjust the current
measurement
Comm. Err DSP-PFC F12 DSP and PFC connect fault Check the communication connection
Input Over Cur. F26 The equipment load is too large
PFC Fault F27 The PFC circuit protection Check the PFC switch tube short
circuit or not
IPM Over heating F15 The IPM module is overheat Check and adjust the current
measurement
Weak Magnetic Warn F16 Compressor magnetic force is not enough
Inv. Input Out Phase F17 The input voltage lost phase Check and measure the voltage
adjustment
IPM Sampling Cur. F18 IPM sampling electricity is fault Check and adjust the current
measurement
Inv. Temp Probe Fail F19 Sensor is short circuit or open circuit Inspect and replace the sensor
Inverter Overheating F20 The transducer is overheat Check and adjust the current
measurement
Inv. Overheating Warn F22 Transducer temperature is too high Check and adjust the current
measurement
Comp. Overcut. Warn F23 Compressor electricity is large The compressor over-current
protection
Input Over Cur. Warn F24 Input current is too large Check and adjust the current
measurement
EEPROM Error Warn F25 MCU error Check whether the chip is damaged
Replace the chip
V15V over/undervoltage
fault
F28 The V15C is overload or undervoltage Check the V15V input voltage in
range 13.5v~16.5v or not