List Of Warning Codes - Mitsubishi Electric MELSEC iQ-R-RD75P4 User Manual

14.4

List of Warning Codes

Warning Warning Cause and description
code name
0900H Start during The start request has been performed while the axis is in
operation BUSY state.
[Operation of when the warning has occurred]
The operation is continued.
0901H Deviation The deviation counter clear has been requested while the axis
counter clear is in BUSY state.
request [Operation of when the warning has occurred]
The deviation counter clear request is ignored.
0902H Restart not The restart command has been performed when the axis
possible operation status is not Stopped.
[Operation of when the warning has occurred]
The operation is continued.
0903H Teaching in The teaching has been requested while the axis is in BUSY
BUSY state.
[Operation of when the warning has occurred]
An error occurs in the axis that is subject to the teaching.
0904H Less than The speed changed with the override function became less
speed 1 than 1 in the unit that is currently set.
[Operation of when the warning has occurred]
The operation is controlled at the speed of 1.
0905H PLC READY The write request to the flash ROM has been performed while
ON write PLC READY signal [Y0] is on.
[Operation of when the warning has occurred]
Data is not written to the flash ROM.
0906H Illegal override A value other than 0 to 300 is set in [Cd.13] Positioning
value operation speed override.
[Operation of when the warning has occurred]
The speed is changed as 300 is set.
0907H Outside new The value set in [Cd.22] New torque value is greater than the
torque value value in [Pr.17] Torque limit setting value.
range [Operation of when the warning has occurred]
The torque is controlled with the value in [Pr.17] Torque limit
setting value.
0908H Below bias The value in [Da.8] Command speed is smaller than the value
speed in [Pr.7] Bias speed at start.
[Operation of when the warning has occurred]
The positioning is performed at the speed of [Pr.7] Bias speed
at start.
0909H Analysis mode The value in [Cd.43] Analysis mode setting has been changed
change in while the axis is operating.
BUSY [Operation of when the warning has occurred]
The change of [Cd.43] Analysis mode setting is ignored.
090AH PLC READY The read request from the flash ROM has been performed
ON read while PLC READY signal [Y0] is on.
[Operation of when the warning has occurred]
Data is not read from the flash ROM.
090BH Restart not The restart command has been performed in pre-analysis
possible mode.
[Operation of when the warning has occurred]
The positioning does not restart.
0980H Speed change The speed change has been requested while the operation is
during decelerating to a stop by turning off of the JOG start signal.
deceleration [Operation of when the warning has occurred]
The speed is not changed.
Action
Do not perform the start request while the axis is in BUSY
state.
Do not request the deviation counter clear while the axis is in
BUSY state.
Perform the restart command when the axis operation status
is stopped.
Request the teaching when the axis is not in BUSY state.
Set a value for the override function so that the changed
speed becomes 1 or more in the unit that is currently set.
Perform the write request to the flash ROM while PLC READY
signal [Y0] is off.
Correct the value within the setting range. For details, refer to
Page 473 [Cd.13] Positioning operation speed override.
Set the value equal to or smaller than [Pr.17] Torque limit
setting value to [Cd.22] New torque value.
For details, refer to the following.
Page 398 [Pr.22] Input signal logic selection
Page 476 [Cd.22] New torque value
Correct the values in [Da.8] Command speed/[Pr.7] Bias
speed at start so that the command speed is equal to or
greater than the bias speed at start.
For details, refer to the following.
Page 386 [Pr.7] Bias speed at start
Page 430 [Da.8] Command speed
Do not change the value in [Cd.43] Analysis mode setting
when the axis operation status is not Standby.
Perform the read request from the flash ROM while PLC
READY signal [Y0] is off.
Do not perform the restart command in pre-analysis mode.
(The warning code: 0902H is recognized prior to 090BH.)
Do not change JOG speed while the operation is decelerating
by turning off of the JOG start signal.
14 TROUBLESHOOTING
14.4 List of Warning Codes
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