Fault Name
Display
Possible Cause Solution
Fault Type
Hardware I/O
resource loss
A99.01
The selected DI hardware
resource does not exist.
Ensure that the power supply unit and extension
cards are firmly installed.
Check parameters F4-00 to F4-15 of the drive unit to
ensure that no non-existing DI hardware resource is
selected.
Axis fault
A99.02
The selected DO/RO
hardware resource does not
exist.
Ensure that the power supply unit and extension
cards are firmly installed.
Check the DO/RO hardware resources of the drive
unit to ensure that no non-existing DO/RO hardware
resource is selected.
Axis fault
A99.03
The selected AI hardware
resource does not exist.
Ensure that the power supply unit and extension
cards are firmly installed.
Check parameters F4-25 to F4-29 of the drive unit to
ensure that no non-existing AI hardware resource is
selected.
Axis fault
A99.04
The selected DI and DO/RO
hardware resources do not
exist.
Ensure that the power supply unit and extension
cards are firmly installed.
Check the drive unit according to the solutions to
A99.01 and A99.02.
Axis fault
A99.05
The selected DI and AI
hardware resources do not
exist.
Ensure that the power supply unit and extension
cards are firmly installed.
Check the drive units according to the
troubleshooting measures for A99.01 and A99.03.
Axis fault
A99.06
The selected DO/RO and AI
hardware resources do not
exist.
Ensure that the power supply unit and extension
cards are firmly installed.
Check the drive units according to the
troubleshooting measures for A99.02 and A99.03.
Axis fault
A99.07
The selected DI, DO/RO, and
AI hardware resources do not
exist.
Ensure that the power supply unit and extension
cards are firmly installed.
Check the drive unit according to the solutions to
A99.01, A99.02, and A99.03.
Axis fault
List of Fault Codes
-563-
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