Mitsubishi Melsec-A AJ65SBT User Manual

6 - 3 6 - 3
MELSEC-
A
6 TROUBLESHOOTING
6.3 Troubleshooting when the "ERR" LED on the Master Station is Flashing
To the next page
The "ERR" LED on the
master station is flickering
Is the
parameter setting consistent
with the mounting system
configuration?
Are the
master station
link special registers
SW0080 to SW0083
(other station data
link status)
on?
YES
NO
YES
YES
YES
Check the modules in which
SW0098 to SW009B are on.
Are the station
number switches
set correctly?
Corresponding module failure
Master station failure
Set the station number
switches correctly.
Power on again/press the
reset switch.
Check the modules in which
SW0080 to SW0083 are on.
Is the power supply on?
Is the "POWER" LED on?
Is the "RD" LED on?
Power on.
Is the
supplied voltage within the
specified range?
Set the supplied voltage
within the specified range.
Wire the communication
cable correctly.
To the next page
To the next page
Malfunction of the
corresponding module
Corresponding module failure
Are the
master station
link special registers
SW0098 to SW009B
(station overlap
status) on?
Check the master side.
Check the slave station side
NO
NO
YES
NO
NO
YES
YES
NO
NO
NO
YES
YES
NO
Does
the corresponding bit
indicate the AJ65SBT-
CLB?
YES
Refer to Section 6.4
or later.
NO
Modification of parameter setting
or mounting system configuration
Is the
communication cable
correctly installed?
1

Mitsubishi Melsec-A AJ65SBT Specifications

General

Brand	Mitsubishi
Model	Melsec-A AJ65SBT
Category	Control Unit
Language	English