Danfoss Turbocor VTT Series - DC-DC Connections; Figure 186 - DC-DC J1 Connection and J12 -J13 Test Points; Removal and Installation

144 of 165 M-SV-VT-001-EN Rev. A
OEM Module Components
5.1.1 DC-DC Connections
1. HV DC IN J1
2. 250 V DC OUT J2
3. 24 V DC OUT J4
4. Ground M4, M5, J6, and J7
5.1.2 Removal and
Installation
Removal (Revisions A and B):
1. Isolate the VFD power as described in the “Electrical Isolation of the Compressor/VFD” section of
this manual.
2. Open the panel containing the DC-DC. Verify the HV DC input from VFD is below 5 VDC by
checking at VDC+ (J12) and VDC- (J13) test points on DC-DC with a DC voltage meter.
3. Disconnect the HV DC input cable from J1; 24 VDC output cable from J4; and 250 VDC output
cable from J2. Refer to Figures 186 (DC-DC J1 Connection and J12-J13 Test Points) and 2 (DC-DC
J2 and J4 Connections).
Figure 186 - DC-DC J1
Connection and J12 -J13
Test Points
J13 Test Point
J1 Connector
J12 Test Point