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Chapter 10. TROUBLESHOOTING
Alarm code display
Alarm classification
Alarm
code
AL01
AL02
AL03
AL04
AL90
AL92
AL93
AL94
AL95
AL96
AL97
AL99
10-2
The DCP552 is designed to alternate display of the following alarm codes and
normal display items in one-second intervals on display panel 1 when input
failures or instrument system failures are detected.
In cases of multiple alarm codes, display of the codes is alternated with normal
display items, starting in order from the alarm code with the smallest number.
PV range alarm group
Measuring instrument alarm group : AL90 to AL99, and battery voltage drop
Alarm name
PV1 overrange
PV1 is more than 110%FS. Check PV1.
PV1 underrange
PV1 is less than –10%FS.
PV2 overrange
PV2 is more than 110%FS. Check PV2
PV2 underrange
PV2 is less than –10%FS.
Board configuration failure Incorrect board configuration Request the repair.
Adjustment value is abnormal.Analog input/output
adjustment data were broken.
Setup data is abnormal. Setup data were broken. Check the setup data, and reset
Variable parameter is abnormal. Variable parameter were Check the variable parameter,
broken.
PID parameter is abnormal.
PID parameter were broken. Check the PID parameter,
(Fixed command control data is abnormal.)
Program data is abnormal. Program data were broken. Check the program data,
Event configuration data Event configuration data
is abnormal.
were broken.
PROM is abnormal. System program were corrupted. Request the repair.
*1:
When AL90 is generated, the alarm code stays on and continued
operation is disabled.
*2:
Data checks performed by AL93 and AL97 may fail to detect
corrupted data. When this happens, the alarm can be turned off by
entering normal data.
: AL01 to AL04
(In case of battery voltage drop, BAT LED
of the console is flickered.)
Contents
Request the repair.
the data.
and reset the data.
and reset the data.
and reset the data.
Check the event configuration data,
and reset the data.
Countermeasure
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