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Check
SiENBE04-925_A
120
Service Diagnosis
5.1.4 Thermistor Resistance Check
Check No.06
Disconnect the connectors of the thermistors from the PCB, and measure the resistance of
each thermistor using tester.
The relationship between normal temperature and resistance is shown in the table and the
graph below.
For the models in which the thermistor is directly mounted on the PCB, disconnect the
connector for the PCB and measure.
Thermistor R25°C = 20 k
Ω
,
B = 3950
Temperature (°C)
–20
211.0 (k
Ω
)
–15
150.0
–10
116.5
–5
88.0
0
67.2
5
51.9
10
40.0
15
31.8
20
25.0
25
20.0
30
16.0
35
13.0
40
10.6
45
8.7
50
7.2
Tester
Resistance range
(R11906)
(k
Ω
)
150
100
50
-15
0
15
30
45
(°C)
(R11905)
RTH1
Tester
(R3460)
SIENBE04-925_A_FRONT.pdf 135
24/02/2011 13:53:58
Summary of Contents for Inverter FTXL20G2V1B
Page 8: ...SiENBE04 925_A vi Table of Contents...
Page 14: ...Introduction SiENBE04 925_A xii...
Page 15: ...SiENBE04 925_A List of Functions 1 Part 1 List of Functions 1 Functions 2...
Page 17: ...SiENBE04 925_A Specifications 3 Part 2 Specifications 1 Specifications 4...
Page 20: ...Specifications SiENBE04 925_A 6 Specifications...