to download LG Multi V Plus - Hawco
to download LG Multi V Plus - Hawco
to download LG Multi V Plus - Hawco
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Checking Method for Key Components<br />
2.5 Inverter IPM Checking Method<br />
CN-P1<br />
CN-N1<br />
N terminal<br />
P terminal<br />
1. Wait until inverter PCB DC voltage is discharged after main power off.<br />
2. Pull out CN-P1, CN-N1 connec<strong>to</strong>rs and U,V,W COMP connec<strong>to</strong>r connected with the inverter PCB.<br />
3. Set multi tester <strong>to</strong> resistance mode.<br />
4. If the value between P and N terminal of IPM is short(0Ω) or open(hundreds MΩ), PCB needs <strong>to</strong> be<br />
replaced.(IPM damaged)<br />
5. In the measured value with resistance mode should be within 28K Ω ±10%.<br />
6. In case measured value is different from the table, PCB needs <strong>to</strong> be replaced.(PCB damaged).<br />
✽ Red(+) and black(-) are the measuring terminals of multi tester.<br />
Copyright ©2007 <strong>LG</strong> Electronics. Inc. All right reserved.<br />
Only for training and service purposes<br />
U terminal<br />
P terminal : black (-) N terminal : red (-)<br />
U terminal : red(+) 28K Ω ± 10% Open<br />
V terminal : red(+) 28K Ω ± 10% Open<br />
W terminal : red(+) 28K Ω ± 10% Open<br />
P terminal : red(+) N terminal : red (+)<br />
U terminal : black(-) Open 28K Ω ± 10%<br />
V terminal : black(-) Open 28K Ω ± 10%<br />
W terminal : black(-) Open 28K Ω ± 10%<br />
- 68 -<br />
V terminal<br />
W terminal<br />
<strong>LG</strong>E Internal Use Only
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