Troubleshooting Depending On The Trouble Symptoms Of The Ae-200/Ae-50/Ew-50 And Trouble Examples - Mitsubishi Electric AE-200A Service Handbook

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[V Troubleshooting]

3. Troubleshooting depending on the trouble symptoms of the AE-200/AE-50/EW-50 and trouble examples

(1) When AE-200/AE-50/EW-50 unit functions
Symptom
The LCD remains off and no
operation is possible.
1
The LCD screen turns on
and off every few seconds
and normal startup is not
possible.
2
The LCD screen becomes
red and a restart is
3
performed repeatedly.
Prohibiting operation with
the local remote controller
4
does not work.
The time is significantly
different from the set time.
5
Error output of the external
output always continues to
be ON even though an error
has not been detected.
6
The unit icon remains in the
starting up state and does
not change.
7
Cause
1)
AC power is not being
supplied.
2)
The AE-200/AE-50 has failed.
(Internal power supply failure,
etc.)
1)
A software update of the
AE-200/AE-50 did not end
normally.
2)
The AE-200/AE-50 has failed.
(Internal connector contact
failure, etc.)
The AE-200/AE-50 has failed.
(SDRAM failure, etc.)
The M-NET remote controller is not
registered to the group of the
AE-200/AE-50/EW-50.
1)
Incorrect setting from upper
level equipment.
2)
The AE-200/AE-50/EW-50 has
failed.
1)
The power supply of the
external circuit is connected
with the polarity reversed.
2)
AC power is applied to the
external input.
3)
The AE-200/AE-50/EW-50 has
failed.
A communication error is occurring. The startup process will complete approximately five minutes
Check procedure and remedy
Cause 1) Check the voltage of the AC power supply terminal
block of the AE-200/AE-50.
a)
When 0 V
→ Check whether the circuit breaker connected to
the AC power supply is ON.
b)
When 100 to 240 VAC
→ Proceed to cause 2)
Cause 2) Shut off the AC power of the AE-200/AE-50 and
then turn it back on.
→ If the same error occurs again, the AE-200/AE-50
has failed. Replace the AE-200/AE-50.
Cause 1) Check the STATUS LED.
→ If it is blinking in pink, perform the software update
again. Refer to "VIII [1] AE-200/AE-50/EW-50
update procedure."
Cause 2) If the cause is not cause 1) above, shut off the
power and then turn it back on. If the same
symptoms occur, the AE-200/AE-50 has failed.
Replace the AE-200/AE-50.
The AE-200/AE-50 has failed. Replace the AE-200/AE-50.
Check whether the M-NET remote controller is registered to
the group on the AE-200/AE-50/EW-50, and if it is not,
perform group registration for the M-NET remote controller.
Cause 1) Check the upper level equipment (TG-2000A, etc.)
to see whether there is equipment for which the time
is wrong.
[Supplementary explanation]
If the cause is not incorrect setting from upper level
equipment, disconnect from the LAN and leave the
equipment for one hour without a connection to the LAN and
then check.
→ If the time is significantly slow (10 seconds or more per
hour), the AE-200/AE-50/EW-50 has failed. Replace the
AE-200/AE-50/EW-50.
Cause 1) Check the polarity of the connection of the external
power supply of the external circuit.
If it is reversed, fix the polarity. If output is not normal
even after changing the polarity, replace the
AE-200/AE-50/EW-50.
Cause 2) ad 3) Replace the AE-200/AE-50/EW-50.
after the power is turned on.
After that, check the error code and remove the cause of the
communication error. For the error codes detected by the
centralized controller, refer to "V [3] 1. How to determine the
cause and resolve trouble based on the detected error display
of the AE-200/AE-50/EW-50."
60
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