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Chapter 6: Maintenance and troubleshooting
Status signaling
There are many ways of troubleshooting if an error occurs. The EXPLORER 500 has different
means of status signaling, to help you find the cause of a problem:
•
Indicators.
The function of the light indicators next to the
display is described in Light indicators on page 5.
•
Alarm messages.
•
Log files.
Alarm messages and log files are described in the following sections.
Alarm messages
Display of alarm messages
The EXPLORER 500 can detect errors during POST (Power On Self Test) or CM (Continuous
Monitoring). When the EXPLORER 500 detects an error that requires your action, it issues an
alarm.
When alarms are issued in your EXPLORER 500, the
display indicates the number of new alarms, and the
red message indicator is flashing.
You now have the following options:
•
Press C to ignore the alarm message and
continue from where you were before the alarm was issued.
•
Press OK to enter the alarm list showing all active alarms. The alarms are listed with their ID
numbers. Unacknowledged alarms are marked NEW.
To acknowledge an alarm and see the name and time stamp, press OK again.
Use  and  to scroll through the name, ID and time stamp. If the text is too long, press OK
() to scroll through the rest of the text.
Once the alarm is acknowledged (OK) or C is pressed, the display returns to normal operation. The
red message indicator keeps flashing as long as the cause of the alarm is still present.
Explanations for the alarms and remedies to solve the problems are listed in the next section.
All alarms are logged in the alarm log. For information on the alarm log, see Alarm log on
page 159.
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