V6-i VRF 50/60Hz
87
P
art
6
- Di
agno
si
s and
Tr
ou
bles
ho
o
ting
Procedure
2.9.5
Note:
1.
The DC bus wire should run from the N_in terminal on the inverter module, through the current sensor (in the direction indicated by the
arrow on the current sensor), and end at the N_out terminal on the inverter module.
Figure 6-2.2: DC detection wire connection method
F1 error
Compressor inverter module wiring is
loosened
Reconnect cables based on
wiring diagram
Reactor and DC bus wiring is incorrectly
1
Reconnect the reactor and
DC bus wire based on wiring
diagram
The power supply is abnormal
No
No
Yes
Yes
Disconnect the
power supply
Check the power supply
equipment
Yes
Replace the inverter module
No
