Mitsubishi Electric GOT SIMPLE Series Operation Manual page 403

■Buzzer sound
Check Symptom
□ No buzzer sound
□ Beeps randomly
□ Beeps in a pattern
□ Beeps without a pause
Status where the GOT screen is frozen (When the screen operation stops)
■Objects that are not displayed on the monitor screen
Check Symptom
□ Exists
□ None
PLC CPU status
■PLC error
Check Symptom
□ Always
□ Sometimes
□ Normal operation
Cause/Status
Buzzer sound:
• Example: The buzzer repeats in the rhythm of
"beep-beep-beep, beep, beep-beep".
The possible cause is the activated Buzzer Output
signal. When the reading device of the system
information is set, the device may be turned on
and the Buzzer Output signal may be activated.
Cause/Status
Detail:
• Example: The numerical display is not
displayed.
Cause/Status
The possible cause is CONTROL-BUS. ERROR,
SP. UNIT LAY. ERROR, or other errors.
The possible cause is noise or a hardware failure.
Frequency:
• Example: Once a month
-
Corrective action
Proceed to the following.
Status where the GOT screen is frozen (When the
screen operation stops)
Check the setting of the reading device.
If the Buzzer Output signal has no error, proceed to the
following.
Status where the GOT screen is frozen (When the
screen operation stops)
Corrective action
Proceed to the following.
PLC CPU status
Corrective action
Proceed to the following.
GOT Restoration Sheets
Proceed to the following.
GOT restoration procedure
34 TROUBLESHOOTING
34.1 GOT Restoration Sheets
34
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