Voltage sensing board – Rockwell Automation 6012DB PowerFlex Medium Voltage Variable Frequency Drive User Manual
Page 24
24
Rockwell Automation Publication 6000-UM001B-EN-P - October 2014
Chapter 2
Drive System Layout
Voltage Sensing Board
The Voltage Sensing Board (VSB) is connected to the drive output terminals that
connect to the motor. The VSB converts motor voltage to low voltage levels
which allows the drive to monitor the output voltage to the motor.
Figure 14 - Voltage Sensing Board
Figure 15 - Power Cabling Overview (3.3 kV Fixed-mounted Power Module Configuration)
L11
L12
L13
A1
B1
C1
A2
B2
C2
A3
B3
C3
A4
B4
C4
A5
B5
C5
A6
B6
C6
A7
B7
C7
A8
B8
C8
A9
B9
C9
U
V
W
PC A1
PC A2
PC A3
PC B1
PC B2
PC B3
PC C1
PC C2
PC C3
U
V
W
Input power
3-phase AC
any voltage
Isolation Transformer
Motor
Voltage Sensing
Board
Isolation Transformer Cabinet
Power Module/LV Control Cabinet
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