GREE Photovoltaic Direct-driven Inverter Multi VRF Units
185
Troubleshooting:
Make sure there are two wired controllers in maximum to control one or several IDUs; when two
wired controllers control one or several IDUs, enter wired controller parameter setting (P13) to set the
address of one wired controller as 02, that is slave wired controller.
2.3.4.42 “Cb” IP address allocation overflow
Error display:
ODU mainboard, IDU wired controller and IDU receive light board will
display
Error judgment condition and method:
If the quantity of address that ODU allocates to other ODU modules exceeds 4, the system will
report IP address allocation overflow.
If the quantity of address that ODU allocates to IDUs exceeds 80, the system will report IP address
allocation overflow.
Possible reason
■ODU quantity in the system exceeds 4
■IDU quantity in the system exceeds 80
■After replacing the IDU and ODU mainboard, ODU is not de-energized.
Troubleshooting:
2.3.4.43 “d1” Indoor circuit board error
Error display:
IDU wired controller and IDU receive light board will display
Error judgment condition and method:
Check if the reading of address chip and memory chip of IDU mainboard is normal. If the data of
address chip and memory chip cannot be read, it is abnormal
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