12.1 Troubleshooting
12.1.3 LED Indicators (MP2200/MP2300)
12-4
12.1.3 LED Indicators (MP2200/MP2300)
For explanations of the LED indicators on MP2100/MP2100M and MP2500/MP2500M/MP2500D/MP2500MD
respectively, refer to Machine Controller MP2100/MP2100M User’s Manual Design and Maintenance (manual num-
ber: SIEP C880700 01) and Machine Controller MP2500/MP2500M/MP2500D/MP2500MD User’s Manual (manual
number: SIEP C880752 00).
( 1 ) LED Indicators
( 2 ) LED Indicator Meanings
The following table shows how to use the LED indicators to determine the operating status of the MP2200/MP2300, as
well as relevant error information when the LED indicator status indicates an error.
The status of the LED indicators on the front of the MP2200/MP2300 can be used to determine
the error status and meaning.
The locations in the program that need to be corrected can be determined by using the LED indi-
cator status to determine the general nature of the error, using the contents of system (S) registers
to check drawings and function numbers causing the error, and knowing the meaning of opera-
tion errors.
Classification
LED Indicator
Indicator Details Countermeasures
RDY RUN ALM ERR BAT
Normal
operation
Not lit Not lit Lit Lit Not lit
Hardware reset status
Usually the CPU will start within
10 seconds. If this status continues for
more than 10 seconds, either a pro-
gram error or hardware failure has
occurred. Refer to 12.2 Troubleshoot-
ing System Errors and correct any sys-
tem errors.
Not lit Not lit Not lit Not lit Not lit
Initialization
Not lit Lit Not lit Not lit Not lit
Drawing A (DWG.A) being executed.
Lit Not lit Not lit Not lit Not lit
User program stopped.
(Offline Stop Mode)
This status occurs
• When the stop operation is exe-
cuted from the MPE720
• When the STOP switch is turned
ON
This status does not indicate an error.
Lit Lit Not lit Not lit Not lit
User program being executed nor-
mally.
This is the normal status.
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