Rockwell Automation SB3000 Configuration and Programming User Manual

Page 57

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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).

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