46
Service Manual
VMH SerieS
Heat Controller, Inc.
Appendix 3
1. Reference voltage data:
a) Rectifier : Input :220-230V(AC), output :310V(DC)
b) Inverter module: U,V, W 3ph.
Result
U-V
60-150V(AC)
U-W
60-150V(AC)
V-W
60-150V(AC)
P-N
DC 310V
2. Check the Diode Bridge component ( In wiring diagram, rectifier)
Remark: If this part is abnormal, the LED will not light.
Multi-meter
Result
Forward Resistance
Backward Resistance
+
_
Infinite
Infinite
~
+
~1.7M ohm
Infinite
~
-
~
~1.7M ohm
Infinite
~
~ +
- ~
Содержание A-VMH18DC-1 Service
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