Danfoss Turbocor TT Series Service Manual page 212

Figure 4-238 Backplane Connections
Table 4-39 Backplane Connections
No. Component
1 J1: PWM Connection Port
2 J2 and J3: BMCC Connection Port
3 J8: Serial Driver Connection Port
4 J7: I/O Cable Connection
5 J24: Input of +24VDC from DC-DC
6 J4: Input of +250VDC From DC-DC
7 J16: Motor-Cooling Solenoids Control Port
8 J17: SCR Temperature (TTH/TGH Interstage Temperature/Pressure
Sensor) Sensor Port
9 J18: Suction Temperature/Pressure Sensor Port
10 J19: Discharge Temperature/Pressure Sensor Port
Page 212 of 294 - M-SV-001-EN Rev. H 1/23/2023
No. Component
11 J20: Motor-Winding Sensor Port
12 J21: IGV Motor Control Port
13 Inverter Ground Screw
14 J11 and J12: Rear Bearing Sensor Cable to Ground
(either may be used)
15 J23: Cavity Temperature Sensor Input
16 J10: Front Bearing Sensor Input
17 J9: Rear Bearing Sensor Input
18 J6: Inverter Connection Port
19 J22: Soft Start Temperature Sensor
20 Backplane Ground Screw