Rockwell Automation SB3000 AC Power Modules - Manual (Page 45)

Diagnostics and Troubleshooting 4-7
4.3.1.8 Overtemperature Fault
The Overtemperature Fault bit (bit 7) is set in the Fault register (202/1202) if the fault
level thermal switch (85
o
C (185
o
F)) in the SB3000 Power Module opens. Bit 12 in
register 204/1204, 220/1220, or 221/1221 will be set to indicate which SB3000 Power
Module is affected. Error code 1016 will also be displayed in the error log of the UDC
task in which the fault occurred.
4.3.1.9 Power Loss Fault
The Power Loss Fault bit (bit 10) is set in the Fault register (202/1202) if AC line power
is lost for more than ten seconds while the SB3000 Power Module is running.This bit
will also be set if one phase of the AC line is lost or if line synchronization is lost. Error
code 1025 will also be displayed in the error log of the UDC task in which the fault
occurred.
4.3.1.10 Power Technology Fault
The Power Technology Fault bit (bit 11) is set in the Fault register (202/1202) if the AC
Power Technology module fails. Error code 1011 will also be displayed in the error log
of the UDC task in which the fault occurred.
4.3.1.11 PMI Power Supply Fault
The PMI Power Supply Fault bit (bit 12) is set in the Fault register (202/1202) if the
PMI rack’s power supply fails. Error code 1012 will also be displayed in the error log of
the UDC task in which the fault occurred.
4.3.1.12 PMI Read/Write Fault
The PMI Read/Write Fault bit (bit 13) is set in the Fault register (202/1202) if a PMI
Processor read or write operation fails. Error code 1013 will also be displayed in the
error log of the UDC task in which the fault occurred.
4.3.1.13 UDC Run Fault
The UDC Run Fault bit (bit 14) is set in the Fault register (202/1202) if the UDC task
stops while the voltage loop is running. Error code 1014 will also be displayed in the
error log of the UDC task in which the fault occurred.
4.3.1.14 Communication Lost Fault
The Communication Lost Fault bit (bit 15) is set in the Fault register (202/1202) if the
fiber-optic communication between the PMI Processor and the UDC module is lost
due to two consecutive errors of any type. This bit is only set after communication
between the PMI Processor and UDC module has been established. This bit should
be used in the run permissive logic of the SB3000 Power Module. Error code 1015 will
also be displayed in the error log of the UDC task in which the fault occurred.
4.3.2 Warnings
The following warnings indicate conditions which are not serious enough to shut down
the SB3000 Synchronous Rectifier but may affect its performance. See table 4.4.
Warnings cause no action by themselves. Any response to a warning condition is the
responsibility of the application task.