Rockwell Automation SB3000 Configuration and Programming - Manual (Page 45)

Configuring the UDC Module’s Registers 3-27
Drive Fault Register (Continued) 202/1202
DC Bus Overcurrent Fault Bit 1
The DC Bus Overcurrent Fault bit is set if
DC bus current exceeds 125% of the
Rectifier’s rated DC bus current. Hex Value: 0002H
Sug. Var. Name: FLT_DCI@
Access: Read only
UDC Error Code: 1020
LED: P.M. FLT
Instantaneous Overcurrent Fault Bit 3
The Instantaneous Overcurrent Fault bit is
set if a power device overcurrent or
shoot-through fault occurs. Hex Value: 0008H
Sug. Var. Name: FLT_IOC@
Access: Read only
UDC Error Code: 1017
LED: P.M. FLT
Power Device Status registers 204/1204, 220/1220, and 221/1221 indicate faults in
Power Modules A, B, or C, respectively. If a single power module is used, only
register 204/1204 is valid.
Bits 0 - 5 in the appropriate status register are set to indicate which power devices
produced the fault. In the event of a shoot-through fault, bit 6 is set as well. Refer the
descriptions of these registers for further information.
Local Power Interface Fault Bit 4
The Local Power Interface fault bit is set if
the power supply for the LPI module is not
operating within tolerance. Hex Value: 0010H
Sug. Var. Name: FLT_LPI@
Access: Read only
UDC Error Code: 1022
LED: P.M. FLT
Gate Driver Interface Fault Bit 5
The Gate Driver Interface Fault bit is set if
the power supply on the Gate Driver
Interface (GDI) module is not operating
within tolerance. Hex Value: 0020H
Sug. Var. Name: FLT_GDI@
Access: Read only
UDC Error Code: 1023
LED: OK on GDI
module
If power modules are connected in parallel, bit 7 in register 204/1204, 220/1220, or
221/1221 is set to indicate which GDI module is affected.