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FX
-128ASL-M User's Manual
3U
LED
Status
display
Fast flicker
(0.2-second
ALM
intervals)
OFF
Description
Transmission cable voltage drop
error
Operating normally
Corrective action
The voltage of the external power supply may be insufficient. Perform
the following:
•
Adjust the power supply voltage of the external power supply within
the rated value (21.6 V DC to 27.6 V DC).
•
Check that the power cables (24 V, 0 V) are not disconnected or
short-circuited. When crimping the link connector, check that the pin
assignment is correct.
•
Check that the external power supply is properly connected to the
terminal blocks of the 128ASL-M and the slave module. Check that
there is no short circuit or incorrect wiring, and screws are tightened
sufficiently.
The system is operating normally.
9 Troubleshooting
9.1 LED Diagnosis of 128ASL-M
73
1
2
3
4
5
6
7
8
9
A
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