
B-63943EN-1/02 1.AXIS CONTROL
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Number Message Description
SV0420 SYNC TORQUE EXCESS In feed axis synchronization control, for synchronization, the
difference value of torque between a master and slave axes
exceeded the parameter (No. 2031) setting value.
This alarm occurs for a master axis.
Caution
CAUTION
1 When making a synchronization error check,
ensure that the reference position on the master
axis and the reference position on the slave axis
must be at the same position.
2 In manual reference position return operation, the
same operation is performed along the master axis
and slave axis until a deceleration operation starts.
After a deceleration operation starts, grid detection
is performed for the master axis and slave axis
independently of each other.
3 Pitch error compensation and backlash
compensation are performed for the master axis
and slave axis independently of each other.
Note
NOTE
1 During feed axis synchronization control, a
movement based on the reference position return
check (G27), automatic reference position return
(G28), 2nd/3rd/4th reference position return (G30),
or machine coordinate system selection (G53)
command is made as described below according to
the setting of bit 7 (SRF) of parameter No. 8304.
<1> When SRF = 0, the same movement as made
along the master axis is made along the slave
axis.
<2> When SRF = 1, a movement is made along
the slave axis to the specified position
independently of a movement made along the
master axis to the specified position.
2 A command not involving a movement along an
axis such as the workpiece coordinate system
setting command (G92) and local coordinate
system setting command (G52) is set with the
master axis according to the master axis
programming.