List Of Error Codes - Mitsubishi Electric MELSEC iQ-F FX55-ASL-M User Manual

9.4

List of Error Codes

This section describes errors that occur in processing for data communication between the FX5-ASL-M and slave modules
and in processing requests from the CPU module, and error codes, error definitions, and causes of the errors, and actions
against the errors.
Error code Error details and causes
(hexadecimal)
1867H FX5-ASL-M hardware failure
3064H
3065H
3066H
0CC8H Transmission cable voltage drop error
0CC9H DP/DN short error
0CCAH DP/DN disconnection error
Action
A malfunction has been detected in the FX5-ASL-M
hardware.
Reset the CPU module or power off and on the system.
If the error occurs again, the FX5-ASL-M may be in failure.
Please consult your local Mitsubishi Electric
representative.
The voltage of the 24 V DC external power supply may be
insufficient. Perform the following:
• 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.)
• 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.
• 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.
A short-circuit may be occurring in the transmission cables
(DP, DN) or the maximum supply current of the
transmission cables (DP, DN) may be exceeded. Perform
the following:
• Check that the transmission cables (DP, DN) are not
short-circuited. When crimping the link connector, check
that the pin layout is correct.
• Check that the transmission cables (DP, DN) are not in
contact with each other and that there is no incorrect
wiring in the terminal block wiring of the FX5-ASL-M and
the slave module.
• Correct the cables (wire diameter, total length) and
modules (type, the number of connected modules) so
that the current consumption of all the slave modules
does not exceed the transmission cable supply current of
the FX5-ASL-M.
The transmission cables (DP, DN) may be disconnected, or
there may be no response from the slave module.
The slave module may be in failure or the system
configuration may have been changed after the automatic
address detection.
Check 'Number of the error IDs' (Un\G8192) and 'Error ID
information storage area' (Un\G8193 to Un\G8320), find
out the disconnected area, and perform the following:
• Check that the transmission cables are free from
disconnection. Check that the cables are crimped with
proper pin layout using link connectors appropriate to the
wire diameter.
• Check that the transmission cables (DP, DN) are
properly connected to the terminal block of the FX5-ASL-
M. Check that there is no incorrect wiring and that
screws are tightened sufficiently.
• When creating a new system, adding or removing a
slave module, or changing the address of the slave
module, execute the automatic address detection. After
executing the automatic address detection function,
check that the number of slave modules and the address
are consistent with those of the actual system.
• If the LINK LED of the slave module does not flash,
check that there is no disconnection, short circuit,
incorrect wiring, or poor contact in the transmission
cables (DP, DN) around the module.
Priority
1 (high)
2
3
4
9 TROUBLESHOOTING
9.4 List of Error Codes
9
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