Prom diagnostic error, Sram diagnostic error, Lan interface diagnostic error – Yaskawa MP920 Communications Module User Manual
Page 157
7.3 Module Specifications
7-11
7
When a hardware error is detected during self-diagnosis, the ERR LED indicator will light
or flash as shown below.
PROM Diagnostic Error
The ERR LED indicator remains lit.
SRAM Diagnostic Error
The ERR LED indicator flashes.
LAN Interface Diagnostic Error
The ERR LED indicator flashes twice, and continues flashing.
RUN
ERR
TX
RX
COL
RUN
ERR
TX
RX
COL
RUN
ERR
TX
RX
COL
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