Figure 4-4.6: Inverter module terminals
xL1/xL4 troubleshooting
Step 1: Check inverter module
▪ Check the DC voltage between terminals P and N. The normal value is 510-580V. If the voltage is lower than 510V, go
to Step 2.
Figure 4-4.7: Inverter module terminals
Step 2: Check rectifier wiring circuit
▪ If the wires are loose, fasten the wires. If the wires are OK, replace the main PCB.
Figure 4-4.8: Rectifier and AC filter board in electric control box
Check 3-phase bridge
rectifier wiring
Check AC filter
board wiring
To Next Page
Loading...