LG ATNH09GRLE2 Svc Manual page 109

4. Trouble Shooting
6.7 Troubleshooting Outdoor Error
CH 23 (DC Link Voltage Low)
How to check PFCM IGBT (Diode Mode)
Sequence of
Measurement
Measurement
1
2
3
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Only for training and service purposes
Normal
Standards
P-U 0.4V~0.6V
P-V 0.4V~0.6V
P-W 0.4V~0.6V
Sequence of
Measurement
Measurement
1
2
3
- 109 -
Normal
Standards
U-Nu 0.4V~0.6V
V-Nv 0.4V~0.6V
W-Nw 0.4V~0.6V
LGE Internal Use Only