Baldor VS1GV21-1B, Installation & Operating Manual, Page: 22 / 204

4-6 Power Wiring MN765
4.8 Incoming Power and Motor Connections
Figure 4-3 shows the layout of the terminals on the power connectors for each size drive. All cables must be in conduits
or shielded and the conduits or shields must be grounded at the cable entrance. The brake resistor and cable must be in a
conduit or shielded if installed outside the enclosure.
Figure 4-3 Power Connections
Frame Size AA 1-Phase Input Drives
Frame Size B and C Drives
GND TH2 TH1 T3 T2 T1 B- R2
B+/R1
L3 L2 L1
GND TH2 TH1 T3 T2 T1 B- R2
R1/B+
GND N L2 L1
Input AC Power
Motor Thermal
Leads
*
Input AC Power
Motor Thermal
Leads
Motor GND
Motor
Chassis
Ground
*
Dynamic Brake
Motor Leads
See recommended tightening torques in Table A-2.
*Remove TH1 to TH2 jumper if Motor Thermal Leads are connected.
Motor Leads
Dynamic Brake
Input AC Power
Dynamic Brake
Motor Leads
Frame Size E Drives
T3 T2
T1
Ground
GND TH2 TH1
L3 L2
L1
B- R2 B+/R1
Frame Size AA 3-Phase Input Drives
GND TH2 TH1 T3 T2 T1 B- R2
R1/B+
GND L3 L2 L1
Input AC Power
Motor Thermal
Leads
Motor GND
Motor
Chassis
Ground
*
Dynamic Brake
Motor Leads
Motor Thermal
Leads
*
L3 L2
L1
Ground
GND TH2 TH1
Motor Thermal
Leads *
Frame Size D Drives
Dynamic Brake
B- R2 B+/R1
Motor Leads
T3 T2
T1
Note: Thermal lead terminal block mounted
on left side wall.
GND TH2 TH1
Motor Thermal
Leads *
Motor Leads
T3 T2
T1
R2 R1
Dynamic Brake
L3 L2 L1
Input AC Power
Ground
Input AC Power
Note: An open circuit between TH1 and TH2 will cause an overtemperature fault.
Refer to fault/troubleshooting information in Chapter 9.
Frame Size F Drives
1. Access the Power and Motor Terminals (see Cover Removal procedure).
2. Feed the power supply and motor cables into the drive through the cable entrance.
3. Connect the line L1, L2, L3 and GND to the power terminal connectors, Figure 4-4.
4. Connect motor leads to T1, T2, T3 and GND motor terminal connectors.
Note:
H2E-Frame Size, 250HP and 300HP (575V) drives utilize studs for power terminations.