Danfoss TTS400 - Page 288

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