Rockwell Automation SB3000 High Pwr SB3000 AC Pwr Modules (RCS) - Manual (Page 40)

4-6 SB3000 Power Modules (RCS)
4.3.1.1 DC Bus Overvoltage Fault
The DC Bus Overvoltage bit (bit 0) is set in the Fault register (202/1202) if the DC bus
voltage exceeds 900 VDC. Error code 1018 will also be displayed in the error log of
the UDC task in which the fault occurred.
4.3.1.2 DC Bus Overcurrent Fault
The DC Bus Overcurrent bit (bit 1) is set in the Fault register (202/1202) if the DC bus
current exceeds 125% of the rated SB3000 Power Module current. Error code 1020
will also be displayed in the error log of the UDC task in which the fault occurred.
4.3.1.3 Ground Current Fault
The Ground Current Fault bit (bit 2) is set in the Fault register (202/1202) if the ground
current exceeds the hardware trip point. Error code 2021 will also be displayed in the
error log of the UDC task in which the fault occurred.
Note that the Ground Current Fault bit (register 202/1202, bit 2) is not enabled on
SB3000 Power Modules using AC Technology modules, B/M 60023-5 and later. Error
code 2021 will not be displayed as the ground current hardware trip detector was
removed from the AC Technology modules, B/M 60023-5 and later.
4.3.1.4 Instantaneous Overcurrent Fault
The Instantaneous Overcurrent Fault bit (bit 3) is set in the Fault register (202/1202) if
an overcurrent is detected in one of the power devices. Register 204/1204, bits 0-5,
indicate which power device detected the overcurrent. When 890A and 1335A
SB3000 Power Modules are being used, registers 220/1220 and 221/1221 indicate
the status of the B and C Power Module cabinets. Error code 1017 will also be
displayed in the error log of the UDC task in which the fault occurred.
4.3.1.5 Local Power Interface Fault
The Local Power Interface Fault bit (bit 4) is set in the Fault register (202/1202) if the
power supply voltage on the LPI module is not within tolerance. Error code 1022 will
also be displayed in the error log of the UDC task in which the fault occurred.
4.3.1.6 Gate Driver Interface Fault
The Gate Driver Interface Fault bit (bit 5) is set in the Fault register (202/1202) if the
power supply voltage on the Gate Driver Interface (GDI) module is not within
tolerance. Error code 1023 will also be displayed in the error log of the UDC task in
which the fault occurred.
If SB3000 Power Modules are connected in parallel, bit 7 in register 204/1204,
220/120, or 221/1221 will be set to indicate which GDI module is affected
4.3.1.7 Charge Fault
The Charge Fault bit (bit 6) is set in the Fault register (202/1202) if either of the
following occurs: the pre-charge contactor did not close when commanded to by the
PMI Processor or the contactor opened without being commanded to do so. Error
code 1024 will also be displayed in the error log of the UDC task in which the fault
occurred.