40 S&C Instruction Sheet 695-535
Viewing Event Logs
The Diagnostic Event Log shows the last 12 tracked diagnostic events recorded by the
overcurrent control.
The Diagnostic Event Log records event messages in a first-in-first out basis with the
most recent events on top. Diagnostic events will remain recorded even if the control
loses power and will only be removed if more than 12 events are recorded (the oldest
event will be overwritten) or if the log is cleared manually. The Diagnostic Event Log
reports on the condition of the control. A key is shown in Table 6. The Diagnostic Event
Log will be used mainly by S&C Electric Company to help troubleshoot any problems
with the overcurrent control.
Figure 29. The Diagnostic Event Log.
Report any ERROR messages to S&C Electric Company. (Contact your local
S&C Sales Ofce or the S&C Global Support and Monitoring Center at 1-888-762-1100 or
1-773-338-1000 outside the U.S.) See Figure 29.
Table 6. Diagnostic Event Log Description
Event Cause Description
Elapsed-Time Counter Shows the start time for the elapsed-time counter.
ADC – Interrupter 1 – A Phase Status of the analog to digital converter. An ADC error could
prevent the overcurrent control from tripping in response to an
event.
ADC – Interrupter 2 – A Phase
ADC – Interrupter 1 – B Phase
ADC – Interrupter 2 – B Phase
ADC – Interrupter 1 – C Phase
ADC – Interrupter 2 – C Phase
Power Supply 3.3 V State of the onboard power supply. Expected value range:
3.2 V to 3.4 V.
POWER_12 V The expected control power for the Overcurrent Control is 12 V.
When power of less than 11 V or more than 13 V is received, the
POWER_12 V event will display.
Flash Memory Test State of the microprocessor’s flash memory
FRAM Memory Test State of the microprocessor’s FRAM memory
Stack Overflow State of the microprocessor’s memory capacity. A stack overflow
means there is no more room in memory to store data.
CTR_OVERFLOW The elapsed time counter overflows. The elapsed time counter
provides a relative time between events logged in the diagnostic
and trip log.
POWERUP The control powers up. The elapsed time counter restarts at “0”
after a POWERUP and counts in minutes.
Code Memory Log Flash memory is corrupted.
Config. Fail Protection settings are corrupted.
Diagnostic Event Log
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