Yaskawa MP930 - Manual (Page 263)

Troubleshooting
9.1.2 Indicator Errors
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9.1.2 Indicator Errors
Error details can be checked by the status of indicators on the front of the MP930 Units.
In the process, we narrow down the repair location in a program by getting an overview of the
error from indicators, checking the contents of the system (S) registers, examining the drawing
or function number that caused the error and then getting an overview of operation error details.
J Indicators
The following indicators show operating status and error details for the MP930.
Indicator Section indicator
Name
Indicator
Color
Significance When Lit
RDY Green System operating normally
RUN Green User program running
ERR Red System error
ALM Red Minor system error
PRT1 Green/Red Port 1 sending/receiving
PRT2 Green/Red Port 2 sending/receiving.
BAT Red Low battery voltage
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