Operation: CP1SD/T/L Version
CENTRON® Polyphase Meter Technical Reference Guide
67
The system reports diagnostic errors in several ways. If a diagnostic check is enabled and an
error occurs, the system will always increment the corresponding diagnostic counter by one.
The range for all diagnostic counters is from 0 to 255. When the counter reaches 255, it
remains there until it is reset by the user. The diagnostic checks will continue to function
and report any errors even after the diagnostic counter has reached 255. The PC-PRO+
Advanced programming software can be used to reset the counters. Refer to the PC-PRO+
Advanced documentation for instructions on how to reset the counters.
The system can also be programmed to display diagnostic errors similar to the one shown in
the figure below.
Need New Photo...
If more than one diagnostic error condition exists, the meter will display a combined error
message. Diagnostic errors will not be shown if any fatal or non-fatal errors are displayed.
Each of the diagnostic checks can be independently programmed with one of the following
display options:
Disable
The diagnostic error will not be displayed on the meter display
or increment the diagnostic counter.
Ignore
The diagnostic error will not be displayed on the meter.
However, the diagnostic error will still increment the diagnostic
counter. This option can be used to determine the frequency of
an error without reporting it on the display of the CENTRON
Polyphase meter.
Lock
The diagnostic error is locked on the display.
Activating the magnetic switch for more than 4 seconds to select
Normal, Alternate, or Toolbox display mode will cause the meter
to scroll through that list and then lock again on the error.
Scroll
The diagnostic error will be displayed during the “Off Time”
between display items. When an error occurs, the meter will
display the error during the next and all subsequent “Off Time”
of the current display mode (Normal, Alternate, or Toolbox).
The meter will check for all enabled diagnostic errors every five seconds. If three
consecutive checks fail, the meter will flag the error. Therefore the meter takes
approximately 15 seconds before an error is flagged. A diagnostic error may take longer to
display on the meter depending on the display option chosen. Once the condition causing
the error is corrected, the meter must pass two consecutive checks before the diagnostic
error is cleared from the display.
