9 TROUBLESHOOTING
9.1 Checking with LED
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9
9
TROUBLESHOOTING
This chapter describes troubleshooting of the FX5-ASL-M.
9.1
Checking with LED
This section describes troubleshooting using LED.
When the POWER LED turns off
When the POWER LED turns off after powering on the FX5-ASL-M, check the following.
When the RUN LED turns off
When the RUN LED turns off after powering on the FX5-ASL-M, check the following.
When the ERROR LED turns on
When the ERROR LED turns on, check the following.
When the LINK LED turns on or off
When the LINK LED turns on or off, check the following.
When the ALM LED is flashing at 0.2 second intervals
When the ALM LED is flashing at 0.2 second intervals, check the following.
Check item
Action
Is the FX5-ASL-M mounted correctly?
Securely mount the FX5-ASL-M on the CPU module.
Check item
Action
Is the FX5-ASL-M mounted correctly?
Securely mount the FX5-ASL-M on the CPU module.
Check item
Action
Does a programmable controller error occur in the GX Works3?
Confirm the details of the 'Latest error code storage area' (Un\G10256) with
the GX Works3 buffer memory monitor, and process accordingly.
Check item
Action
Does a programmable controller error occur in the GX Works3?
Confirm the details of the 'Latest error code storage area' (Un\G10256) with
the GX Works3 buffer memory monitor, and process accordingly.
Check item
Action
Is the power supply voltage of the 24 V DC external power supply within the
rated value?
Adjust the power supply voltage of the 24 V DC external power supply within
the rated value (21.6 to 27.6 V DC). (The recommended voltage is 26.4 V
DC.)
Is any power cable short-circuited?
• Check that the power cables (24V, 0V) are not disconnected or short-
circuited.
• When crimping the link connector, check that the pin layout is correct.
Is the terminal block properly wired?
• Check that the 24 V DC external power supply is properly connected to the
terminal blocks of the FX5-ASL-M and the slave module.
• Check that there is no short circuit or incorrect wiring and screws are
tightened sufficiently.
Summary of Contents for MELSEC iQ-F FX55-ASL-M
Page 1: ...MELSEC iQ F FX5 User s Manual ASLINK ...
Page 2: ......
Page 12: ...10 INDEX 88 REVISIONS 90 WARRANTY 91 TRADEMARKS 92 ...
Page 13: ...11 CONTENTS ...
Page 23: ...3 PROCEDURES BEFORE OPERATION 21 3 MEMO ...
Page 91: ...I 89 MEMO ...
Page 95: ......