Honeywell ML200R - Page 62

Code Error Causes
Measures
Restart mode after the
measure.
Operation
Status
LED
Status
Diagnostic
Timing
300 Redundancy
system
synchronous
operating error.
During redundancy
operating,
synchronization error
occurs.
STOP E300 Switch to
redundancy
operation.
301 Standby CPU
failed to operate
as redundancy
because of
master CPU
error.
Restart as redundancy
operation
l Set operation mode of
standby CPU as
STOP.
l Cancel the error of
master CPU and then
restart.
l Change standby CPU
into RUN mode.
Restart standby CPU as
single operation.
l Disable master CPU
(STOP mode or power
cut).
l Restart standby CPU
through reset switch
or by changing the
operation mode from
STOP to RUN.
STOP E301 Start
standby
operation.
500 Data memory
backup is not
possible
Turn it on again if battery
is normal. It is converted
to STOP mode in
Remote mode.
STOP ERR : On Reset
501 Abnormal clock
data
Reset the time by
SoftMaster if battery is
normal.
- CHK: On Always
502 Low-battery
voltage
Replace a battery with
the power on.
- BAT: On Always
ATTENTION
l Error codes during the CPU operation can be checked at the A/S Service Center.
l Other errors, if any, can be checked by using the error log in SoftMaster.
- 60 -
Chapter 4 - Troubleshooting