Alarm Code List - Mitsubishi Electric AnyWire ASLINK User Manual

10.7

Alarm Code List

This section describes the list of alarm codes.
Alarm codes indicate that operation of the module can continue despite the error, and the ALM LED turns on or flashes.
Alarm code Alarm name
(hexadecimal)
0CC9H DP/DN short error
0CCBH 24V/DP short error
0D00H DP/DN disconnection
error
0D2CH Slave module access
error
0D2DH Slave module access
error
0D2EH Parameter access target
module ID error
0D2FH Parameter setting value
error
0D30H Parameter access error
0D31H Slave module status error
Alarm description and cause
A short circuit between DP and DN or a
current exceeding the maximum supply
current of the transmission cable (DP,
DN) has occurred.
A short circuit between may be
occurring 24V and DP.
The slave module gives no response
due to disconnection between DP and
DN.
Abnormal parameter access has
occurred.
Abnormal parameter access has
occurred.
Parameter access or a remote address
change was executed for an ID not
detected by the automatic address
detection.
A setting value that cannot be set has
been set in the device parameter of the
slave module.
Parameter access to the slave module
has failed.
The slave module is in the error status.
Action
• Check that the wiring between DP and DN has not short-
circuited.
• When crimping the link connector, check that the pin
assignment is correct.
• Check that no contact or incorrect wiring exists between DP
and DN in the terminal block wiring of the NZ2AW1GNAL and
the slave module.
• Correct the cables (wire diameter, total wiring length) and
modules (type, number of connected modules) so that the
current consumption of all the slave modules does not exceed
the transmission cable supply current of the NZ2AW1GNAL.
• Check that the wiring between 24V and DP has not short-
circuited.
• When crimping the link connector, check that the pin
assignment is correct.
• Check that no contact or incorrect wiring exists between 24V
and DP in the terminal block wiring of the NZ2AW1GNAL and
the slave module.
• Check that the entirety of the transmission cables are free
from disconnection.
• Check that the cables have been crimped with proper pin
assignment using link connectors appropriate to the wire
diameter.
• Check that the signal wires are properly connected to the
terminal block of the NZ2AW1GNAL.
• Check that no wiring is incorrect and that the screws are
tightened sufficiently.
• When creating a new system or changing the system
configuration, perform 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 is not flashing, check that
no disconnection, short circuit, incorrect wiring, or poor contact
exists between DP and DN around the module.
• When the error occurs during execution easy replacement for
one slave module or the remote address change function,
check that the slave module supports those functions.
• Take measures to reduce noise.
• Power off and on the NZ2AW1GNAL and the slave module in
which the error has occurred.
• If it occurs again, consult Anywire Corporation.
• Take measures to reduce noise.
• Power off and on the NZ2AW1GNAL and the slave module in
which the error has occurred.
• If it occurs again, consult Anywire Corporation.
• Check that the setting value of Parameter access target
module ID specification (RWw1) is correct.
• Execute automatic address detection, check that the target ID
is detected, and perform parameter access again.
Check the manual of the slave module with the ID where the
error occurred, and set values within the settable range.
• Check that only one slave module is set to the ID where the
error occurred is connected.
• Take measures to reduce noise.
Check the status details of the slave module with the ID where
the error occurred, and eliminate the error that occurred. For
details about the error, refer to the manual for each slave module
used.
10 TROUBLESHOOTING
10.7 Alarm Code List
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