Vfd Dc-Dc Cable Verification; Torque Specifications; Table 34 - Regen Cable Torque Specifications - Danfoss Turbocor VTT Series Service Manual

4.6.2 VFD DC-DC Cable
Verification
4.6.3 Torque
Specifications
Table 34 - Regen Cable

Torque Specifications

142 of 165
M-SV-VT-001-EN Rev. A
Variable Frequency Drive Components
Installation:
1. Route the cable into the DC-DC box.
2. Connect to (J1) HV IN on the DC-DC Board.
3. Connect the HV DC Ground cable to the DC-DC Board.
4. Secure the cable where it goes into the box.
5. Route the cable into the bottom of the VFD.
6. Connect to + Regen 82 and – Regen 83.
7. Secure the cable where it goes into the power module.
8. Replace all covers.
9. Reconnect power to the VFD.
1. Apply power to the VTT VFD.
2. Verify the LEDs on CIM are on.
3. On the DC-DC, using an appropriately rated voltage meter, verify HV DC input is correct for the
applied voltage by checking at VDC+ (J12) and VDC- (J13) test points.
4. The measured voltage should be around 1.35 x the AC input voltage.
5. Verify 24 V DC output is correct by checking at J10 and J11 test points.
6. Verify 250 V DC output is correct by checking at J8 and J9 test points.
+ and - Regen Screws, M5
Description Nm Ft.Lb. In.Lb.
19 14 168