HYBRID/TROUBLE SHOOTING
3–282
1.
Using the electrical tester, measure the insulation resistance
between the relay terminal block side terminals and the ground.
NO
YES
1.
Disconnect the frame wires of 23rd, 24th, and 25th terminals from
the HV motor terminal block.
2.
Using the electrical tester, measure the insulation resistance
between the terminals of frame wire side and the ground.
NO
YES
11
Inspecting the insulation resistance of relay terminal block
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Relay terminal
block
20th terminal
–
GND
21st terminal
–
GND
22nd terminal
–
GND
10 M
or more
Is the measured value within the range of standard value?
Go to step 12.
Replace the relay terminal block.
12
Inspecting the insulation resistance of frame wire (between the inverter and the HV motor)
U
V
W
[23]
[24]
[25]
SHTS03ZZZ0300193
Measurement
conditions
Tester
connections
Standard values
Starter key: LOCK
Frame wire
23rd terminal
–
GND
24th terminal
–
GND
25th terminal
–
GND
10 M
or more
Is the measured value within the range of standard value?
Go to step 13.
Replace the frame wire.