Reference Voltage Data; Check The Diode Bridge Component - Heat Controller A-VMH18DC-1 Service Manual

Service Manual
Appendix 3

1. Reference voltage data:

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