Rockwell Automation SB3000 Configuration and Programming - Manual (Page 40)

3-22 SB3000 Drive Configuration and Programming
3.5 Feedback Registers (Registers 200-299/1200-1299)
The Feedback Registers view is used to configure the feedback registers that display
the current status of the drive. These registers are updated by the PMI Processor and
sent to the UDC module over the fiber-optic link before every scan of the UDC task.
The status of these registers is retained after a Stop All.
Drive Status Register 200/1200
The bits in the Drive Status register indicate the current state of the Synchronous Rectifier. They reflect the
status of the activity initiated through the Drive Control Register (register 100/1100). All the bits in this
register are written to by the PMI Processor.
Voltage Loop On Bit 0
The PMI Processor sets the Voltage Loop
On bit in response to the VDC_RUN@
command after all of the interlock tests are
passed. VDC_ON@ indicates that the
voltage minor loop is running and the bus is
energized. Hex Value: 0001H
Sug. Var. Name: VDC_ON@
Access: Read only
UDC Error Code: N/A
LED: N/A
Voltage Loop Standby Bit 1
The PMI Processor sets the Voltage Minor
Loop Standby bit to indicate that the
Rectifier is performing a power-dip ride
through. This will occur if input power is lost
while the voltage control loop is running. Hex Value: 0002H
Sug. Var. Name: VDC_SB@
Access: Read only
UDC Error Code: N/A
LED: N/A
If any fault occurs while the Rectifier is in standby mode, it will shut down and not
start up again until all faults are reset. Refer to the description of register 203/1203,
bit 10 for an explanation of the power dip ride through warning.
In Current Limit Bit 2
The In Current Limit bit is set if the total
rectifier current is being limited to the
configured value. Hex Value: 0004H
Sug. Var. Name: IN_LMT@
Access: Read only
UDC Error Code: N/A
LED: N/A