Rockwell Automation SB3000 Configuration and Programming User Manual
Page 57
Configuring the UDC Module’s Registers
3-39
Interlock Register (Continued)
205/1205
VDC Not Allowed
Bit 11
The VDC Not Allowed bit is set if the bridge
test is requested and VDC is greater than
10V.
Hex Value:
0800H
Sug. Var. Name:
IC_VDC@
Access:
Read only
UDC Error Code:
N/A
LED:
N/A
DC Bus Voltage (Volts) Register
206/1206
The DC Bus Voltage register contains the measured DC bus voltage.
The displayed value is scaled in volts.
Sug. Var. Name:
VDC_FB%
Units:
Volts
Range:
N/A
Access:
Read only
DC Bus Current (Amps) Register
207/1207
The DC Bus Current (Amps) register contains the measured current
in the DC bus. The value is scaled in amps times 10. For example,
50.1 amps is represented as 501.
Sug. Var. Name:
IDC_FB%
Units:
Amps
∗
10
Range:
N/A
Access:
Read only
Ground Current Feedback (Amps) Register
208/1208
The Ground Current Feedback (Amps) register contains the
measured RMS ground current. This value is scaled in amps times
10. For example, 50.1 amps is represented as 501.
Sug. Var. Name:
GI_FB%
Units:
Amps
∗
10
Range:
N/A
Access:
Read only
This value can be used to determine at what level to set the ground current warning threshold (tunable
variable GIT_E1%).
Voltage Feedback (Volts RMS) Register
209/1209
The AC Voltage Feedback register contains the RMS line voltage.
The value is scaled in RMS volts.
Sug. Var. Name:
VAC_FB%
Units:
RMS volts
Range:
N/A
Access:
Read only
AC Current Feedback (Amps RMS) Register
210/1210
The AC Current Feedback (Amps RMS) register contains the
measured RMS motor current. The value is scaled in amps times 10.
For example, 50.1 amps would be represented as 501.
Sug. Var. Name:
IAC_FB%
Units:
Amps
∗
10
Range:
N/A
Access:
Read only
The current may be flowing from the AC line (motoring quadrants) or flowing to the AC line (regenerating
quadrants).