Danfoss Turbocor TT Series Service Manual page 288

Component
IGV Motor Resistance
Interlock
Pressure/Temperature
Sensor Resistance
PWM Diode
Rear Bearing Feedthrough
Resistance
Rear Bearing Sensor
Feedthrough Resistance
SCR Diode
SCR Gate Resistance
SCR Temperature Sensor
Soft Start Fuses
(Closed-Top Soft Start only)
Page 288 of 294 - M-SV-001-EN Rev. H 1/23/2023
Test Point
Phase 1: + Lead on AC Output to + DC input
Phase 2: + Lead on AC Output to - DC input
Phase 2: + Lead on AC Output to + DC input
Phase 3: + Lead on AC Output to - DC input
Phase 3: + Lead on AC Output to + DC input
Phase 1: - Lead on AC Output to - DC input
Phase 1: - Lead on AC Output to + DC input
Phase 2: - Lead on AC Output to - DC input
Phase 2: - Lead on AC Output to + DC input
Phase 3: - Lead on AC Output to - DC input
Phase 3: - Lead on AC Output to + DC input
1 to 2
3 to 4
Power On: I/Lock - to Ground
Power On: J2 Removed I/Lock - to I/Lock +
Power Off: J2 Removed I/Lock - to I/Lock +
1 to 3 (1 to 2 of the plug)
Lead in HV-; - lead in PWM connector
- Lead in HV+; +C47 lead in PWM connector
All models 1 to 6
All models 2 to 5
TT300/TG230 3 to 4
All models except TT300/TG230: 3 to 4
5 to 2
5 to 3
6 to 7
6 to 8
positive (+) on 1 negative (-) on 2
positive (+) on 1 negative (-) on 3
positive (+) on 2 negative (-) on 1
positive (+) on 3 negative (-) on 1
Gate Terminals
J17 Sensor connector
F1
F2
F3 & F6
Expected Value Verification Section
0.275v - 0.4v 4.22.2 I nverter Verification
Open 4.22.2 I nverter Verification
0.275v - 0.4v 4.22.2 I nverter Verification
0.275v - 0.4v 4.22.2 I nverter Verification
Open 4.22.2 I nverter Verification
0.275v - 0.4v 4.22.2 I nverter Verification
Open 4.22.2 I nverter Verification
0.275v - 0.4v 4.22.2 I nverter Verification
Open 4.22.2 I nverter Verification
0.275v - 0.4v 4.22.2 I nverter Verification
Open 4.22.2 I nverter Verification
46Ω to 59Ω 4.9.2 I GV Verification
46Ω to 59Ω 4.9.2 I GV Verification
0VDC 4.3.2.3 I nterlock Verification
2.2 to 3.7 VDC 4.3.2.3 I nterlock Verification
< 22 kΩ 4.3.2.3 I nterlock Verification
10KΩ @ 77°F 4.31.3 C avity Temperature
(25°C) Sensor Verification
0.39-0.46VDC 4.28.3.3 V erify Functionality of
the Five Diode Sets
0.39-0.46VDC 4.28.3.3 V erify Functionality of
the Five Diode Sets
2.7 to 3.25Ω 4.29.3 B earing Verification
2.7 to 3.25Ω 4.29.3 B earing Verification
5.7 to 6.2Ω 4.29.3 B earing Verification
6.0 to 6.7Ω 4.29.3 B earing Verification
2.0Ω to 3.5Ω 4.30.3 B earing Sensor
Verification
2.0Ω to 3.5Ω 4.30.3 B earing Sensor
Verification
2.0Ω to 3.5Ω 4.30.3 B earing Sensor
Verification
2.0Ω to 3.5Ω 4.30.3 B earing Sensor
Verification
∞ or open 4.18.2 S CR Verification
∞ or open 4.18.2 S CR Verification
∞ or open 4.18.2 S CR Verification
0.3V to 0.45V 4.18.2 S CR Verification
>1Ω and <25Ω 4.18.2.3 G ates Verification
(all models)
10KΩ @ 70°F 4.18.2.5 S CR Temperature
(21°C) Sensor Verification
<1Ω 4.14.2.2 V erifying Soft Start
Fuses
<1Ω 4.14.2.2 V erifying Soft Start
Fuses
<1Ω 4.14.2.2 V erifying Soft Start
Measured
Value