Rockwell Automation SA3100 Diag,Troublesht,Startup,Guide - Manual (Page 15)

Diagnostics and Troubleshooting 2-1
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Diagnostics and
Troubleshooting
The Distributed Power System contains built-in comprehensive diagnostics. In order
to diagnose and correct problems quickly, it is important to understand the types of
diagnostics that are performed, when they are performed, and how the results are
reported. This chapter describes the different types of diagnostics performed by the
system’s modules and how the results of these diagnostics are reported. This chapter
also describes how the system reacts if an error is detected.
There are a number of control modes that can be selected by the user for PMI
Regulator operation. An overview of these modes is shown in figure 2.1. The
Distributed Power System provides diagnostics at each level of operation as shown in
figure 3.1.
Use these figures as a reference to quickly identify the system's requirements for
entering and operating in each mode. These figures also refer to specific sections in
the manual that provide additional information.
2.1 Definition of Terms Used in Diagnostics and
Troubleshooting
For the purpose of describing diagnostics and troubleshooting, this instruction manual
will use specific terms to refer to the types of errors that can be detected by the PMI
Regulator and the response of the PMI Regulator and UDC module to those errors.
A diagnostic is a software routine specifically designed to check for error conditions.
There are three types of diagnostics in SA3100 drives: power-up diagnostics, interlock
diagnostics, and run-time diagnostics.
A drive fault is an error specifically checked for by the PMI Regulator operating
system that will shut the drive down. Faults are reported in the Drive Fault register
(202/1202) of the UDC module and in the error log for the UDC task in which the fault
occurred.
A drive shut-down occurs when any fault reported in the Drive register (202/1202)
occurs.
A drive warning is an error specifically checked for by the PMI Regulator operating
system that indicates the drive is not operating in an optimum manner. Drive
warnings will not shut the drive down.
An error is any condition other than the desired condition.
Interlock diagnostics are those diagnostics performed by the PMI Regulator
operating system in response to a drive control request from the programmer, e.g.,
TRQ_RUN@, in register 100/1100 of the UDC module dual port memory.
Power-up diagnostics consist of the initial tests for basic functionality performed by
all printed circuit board modules.