Table of Contents
[ IX Troubleshooting ]
[THMU-A]
(5) Simple checking procedure for individual components of main inverter circuit
Before checking, turn the power off and remove the parts to be checked from the control box.
Part name
Rush current
Measure the resistance between terminals: 22 ohm
protection resis-
tor
R1(R2)
Electromagnetic
relay
This electromagnetic relay is rated at 200VAC and is driven by a coil. The resistance between the
72C
coils in row A cannot be measured with a tester.Check only for shorting.
Test button
DC reactor DCL
Measure the resistance between terminals: 1ohm or lower (almost 0 ohm)
Measure the resistance between terminals and the chassis:
HWE09080
Judgment method
Installation direction
Row
Row
Row
Row
Row
A
B
C
D
E
A2
44 34 24 14
A1
43 33 23 13
- 332 -
10%
Checking criteria
Check point
Coil
Not to be short-circuited
Row A
With the test button
Row B to Row E
Contact
With the test button
turned off :
turned on : 0
GB
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Troubleshooting
