DC Inverter Multi VRF System
30
Error
Code
Content
Error
Code
Content
HE
Phase-lacking of inverter fan
GC
Photovoltaic DC hardware overcurrent
protection
HF
Drive charging circuit malfunction of fan
GL
Grid side hardware overcurrent protection
HJ
Failure startup of inverter fan
GE
High or low photovoltaic voltage protection
HP
AC current protection of inverter fan
GF
DC bus neutral-point potential unbalance
protection
HU
AC input voltage of drive of inverter fan
GJ
Grid side module high-temperature protection
Gd
Grid side current sensor protection
GP
Grid side temperature sensor protection
Gn
Insulation resistance protection
GU
Charging circuit protection
Gy
Unrecoverable error of grid drive (photovoltaic)
Gb
Grid side relay protection
Debugging:
Error
Code
Content
Error
Code
Content
U0
Preheat time of compressor is insufficient
Cd
Communication malfunction between mode
exchanger and ODU
U2
Wrong setting of ODU’s capacity code/jumper cap
Cn
Malfunction of network for IDU and ODU of
mode exchanger
U3
Power supply phase sequence protection
Cy
Communication malfunction of mode exchanger
U4
Refrigerant-lacking protection
C0
Communication malfunction between IDU,
ODU and IDU’s wired controller
U5
Wrong address for driving board of compressor
C1
Communication malfunction between main
control and DC-DC controller
U6
Alarm because valve is abnormal
C2
Communication malfunction between main
control and inverter compressor driver
U7
Power grid DRED0 response protection
C3
Communication malfunction between main
control and inverter fan driver
U8
Short-circuit malfunction of IDU
C4
Malfunction of lack of IDU
U9
Malfunction of pipe-line for ODU
C5
Alarm because project code of IDU is
inconsistent
UA
DC bus overvoltage protection at power grid side
C6
Alarm because ODU quantity is inconsistent
UH
DC bus undervoltage protection at power grid side
C7
Abnormal communication of converter
UC
Setting of main IDU is successful
C8
Emergency status of compressor
UL
Emergency operation DIP switch code of
compressor is wrong
C9
Emergency status of fan
UE
Charging of refrigerant is invalid
CA
Emergency status of module
UF
Identification malfunction of IDU of mode
exchanger
CH
Rated capacity is too high
UJ
FO protection for PV module
CC
Malfunction of lack of main control unit
Ud
Grid-connected driver board error
CL
Rated capacity is too low
Un
Communication malfunction between main control
and inverter
CE
Communication malfunction between mode
exchanger and IDU
Uy
Over-temperature protection for PV module
CF
Malfunction of multiple main control units
CU
Communication malfunction between IDU and the
receiving lamp plate
CJ
Address DIP switch code of system is shocking
Cb
Overflow distribution of IP address
CP
Malfunction of multiple main wired controllers
Содержание GMV-36WL/C-T
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