Mitsubishi MELSEC AJ65BT-R2 User Manual page 58

4 PROCEDURES AND SETTINGS BEFORE OPERATION
LED state
: OFF, : ON
*2 When normal :
When abnormal :
Details
ROM check error
RAM check error
Hardware error, or CC-Link dedicated
cable is still connected.
Hardware error, or RS-232-C loopback
connector is not connected.
The RS-232-C ERR.LED flickers.
The state is normal if the LED flickers for 30 seconds or
more.
The RS-232-C ERR.LED turns ON.
The error cause is indicated with the YC LED and YD LED
states.
The hardware may be faulty, so contact your
nearest dealer or Mitsubishi branch.
Disconnect the CC-Link dedicated cable.
If the ERR.LED does not flicker even when the
CC-Link dedicated cable is disconnected, the
hardware may be faulty, so contact your
nearest dealer or Mitsubishi branch.
Mount the loopback counter.
If the ERR.LED does not flicker even when
loopback connector is connected, the hardware
may be faulty, so contact your nearest dealer or
Mitsubishi branch.
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MELSEC-A
Measures