Mitsubishi Electric RD77MS2 User Manual page 585

Warning code Warning name
(Hexadecimal)
0938H Outside mark
detection data axis
No. setting range
0939H Outside mark
detection data buffer
memory No. setting
range
093AH Outside maximum
number of control
axes
093BH Outside control axis
setting
093CH Home position return
data incorrect
093EH SSCNET
communication error
0980H Speed change during
deceleration
0981H JOG speed limit
value
0982H JOG speed limit
value
0988H Outside manual
pulse generator input
magnification range
Error details and causes
When the mark detection data type setting is not
"Optional 2 word buffer memory", the mark detection
data type setting is outside the range.
[Operation status at warning occurrence]
The setting number of which the mark detection setting
parameter is outside the range is invalid.
When the mark detection data type setting is "Optional 2
word buffer memory", the mark detection data buffer
memory No. is outside the range or odd number.
[Operation status at warning occurrence]
The setting number of which the mark detection setting
parameter is outside the range is invalid.
The common parameter "[Pr.152] Maximum number of
control axes" exceeds the number of control axes of
Simple Motion module.
[Operation status at warning occurrence]
Controlled as "0: No setting".
"[Pr.100] Connected device" is set to the axis that
exceeded the "[Pr.152] Maximum number of control
axes".
[Operation status at warning occurrence]
The communication with the connected device is not
executed.
• The backup data for absolute position restoration is
illegal.
• The home position return has never been executed
after the system start.
• The home position return is started, but not completed
correctly.
• "Absolute position erased" in the driver is detected.
• "Rotation direction selection (PA14)" of the servo
parameter has been changed.
[Operation status at warning occurrence]
The operation continues.
Data received from servo amplifier is in error.
[Operation status at warning occurrence]
The operation continues.
The speed change request is issued during deceleration
stop with JOG start signal OFF.
[Operation status at warning occurrence]
The speed change is not carried out.
*2
The JOG speed exceeds the JOG speed limit value at
start.
[Operation status at warning occurrence]
• When the speed exceeds the JOG speed limit, the
JOG operation is carried out with the JOG speed limit
value.
• While the speed is limited by the JOG speed limit
value, the "[Md.39] In speed limit flag" is turned ON.
*2
The new speed value exceeds the JOG speed limit
value when the speed is changed during operation.
[Operation status at warning occurrence]
• When the speed exceeds the JOG speed limit, the
JOG operation is carried out with the JOG speed limit
value.
• While the speed is limited by the JOG speed limit
value, the "[Md.39] In speed limit flag" is turned ON.
The manual pulse generator 1 pulse input magnification
is set to 0, 10001 or more, or negative value.
[Operation status at warning occurrence]
• When input magnification is set at 10001 or more, or
negative value: Re-set to 10000.
• When input magnification is set at 0: Re-set to 1.
Remedy
Set a value within the setting range.
Set a value with an even number within the setting
range.
Correct the setting value.
Correct the "[Pr.152] Maximum number of control
axes" or "[Pr.100] Connected device".
Execute home position return.
• Check the SSCNET cable.
• Check the servomotor and encoder cable.
• Take measures against noise.
• Check whether the rotation direction selection/travel
direction selection (PA14) is set "0  1" or "1  0"
in the user program or the engineering tool.
Do not carry out the JOG speed change during
deceleration with the JOG start signal OFF.
Set a value within the setting range.
Set a value within the setting range.
Set the manual pulse generator 1 pulse input
magnification to within the setting range.
14 TROUBLESHOOTING
14.4 List of Warning Codes
14
583