Mitsubishi Electric MELSEC iQ-R Series User Manual page 626

Error code
(Hexadecimal)
1A06H
1A07H
1A08H
1A09H
1A0AH
1A20H
1A21H
1A22H
1A23H
1A24H
1A25H
1A26H
1A27H
1A29H
14 TROUBLESHOOTING
624
14.5 List of Error Codes
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Error name Error details and causes
Hardware stroke limit (-) Start is requested when the hardware stroke limit
(lower limit signal (RLS)) is turned OFF.
[Operation status at error occurrence]
The system does not start.
Hardware stroke limit (-) The hardware stroke limit (lower limit signal (RLS)) is
turned OFF during operation.
[Operation status at error occurrence]
The system stops with the setting (deceleration stop/
rapid stop) of the detailed parameter 2 Rapid stop
selection (stop group 1).
(Note that the deceleration stop only occurs during the
manual pulse generator operation.)
Stop signal ON at start Start is requested when a stop signal is turned ON.
[Operation status at error occurrence]
The system does not start.
Stop signal ON at start Start is requested when an external stop is turned ON.
[Operation status at error occurrence]
The system does not start.
READY OFF  ON during
The PLC READY signal [Y0] was turned OFF and ON
BUSY with the BUSY signal ON.
[Operation status at error occurrence]
The READY signal [X0] is not turned ON.
Start not possible Start is requested when start is not possible in the axis
operation state.
[Operation status at error occurrence]
The system does not start positioning.
Start not possible Start is requested when "[Md.26] Axis operation status"
is "-1: Error".
[Operation status at error occurrence]
The system does not start positioning.
Start not possible Start is requested when "[Md.26] Axis operation status"
is "20: Servo amplifier has not been connected/servo
amplifier power OFF".
[Operation status at error occurrence]
The system does not start positioning.
Start not possible Start is requested when "[Md.26] Axis operation status"
is "21: Servo OFF".
[Operation status at error occurrence]
The system does not start positioning.
Start not possible Start is requested when communication with servo
amplifier is error.
[Operation status at error occurrence]
The system does not start positioning.
Start not possible Start is requested when "[Md.26] Axis operation status"
in the axis to be interpolated is "-1: Error", "20: Servo
amplifier has not been connected/servo amplifier
power OFF", and "21: Servo OFF".
[Operation status at error occurrence]
The system does not start positioning.
Start not possible Start is requested when "[Cd.100] Servo OFF
command" is turned ON.
[Operation status at error occurrence]
The system does not start positioning.
Start not possible Start is requested when the servo alarm occurs.
[Operation status at error occurrence]
The system does not start positioning.
Start not possible Start is requested when the servo READY signal is
turned OFF.
[Operation status at error occurrence]
The system does not start positioning.
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Remedy
• Check the wiring of lower limit signal RLS.
• Check if the specification of the limit switch
and the setting of "[Pr.22] Input signal logic
selection" match.
• For systems that do not require the installation
of a hardware stroke limit (limit switch), wiring
should be done so that the lower limit signal
(RLS) input of the Motion module is always
ON.
After making an axis error reset, perform manual
control operation to move the axis to the other
position in order that the lower limit signal (RLS)
will not turn OFF.
After clearing the stop command status, then
review the timing of start.
After clearing the external stop status, then
review the timing of start.
Turn ON the PLC READY signal [Y0] with the
BUSY signals of all axes OFF.
Do not request the start when the axis operation
state is other than "0: Standby", "1: Stopped",
and "-2: Step standby".
Do not request the start when the axis operation
state is other than "0: Standby", "1: Stopped",
and "-2: Step standby".
Do not request the start when the axis operation
state is other than "0: Standby", "1: Stopped",
and "-2: Step standby".
Do not request the start when the axis operation
state is other than "0: Standby", "1: Stopped",
and "-2: Step standby".
Check the wiring with the servo amplifier and
connection of connectors.
Do not request the start when "[Md.26] Axis
operation status" in the axis to be interpolated is
other than "0: Standby", "1: Stopped", and "-2:
Step standby".
Set "0: Servo ON" in "[Cd.100] Servo OFF
command".
Reset the error after removing the servo alarm
referring to the manual of the servo amplifier.
Do not request the start when the servo READY
signal is turned OFF.