
B–63523EN–1/03
1. AXIS CONTROL
337
This function is provided for machines that require synchronizing two or
more different gear ratios, such as a hobbing machine.
The function can simultaneously place up to four sets in synchronization
independently. For example, it is possible to realize special hobbing
machine functions, such as synchronization between a hob axis and one
workpiece axis, Z–C synchronization in helical gear cutting, and Y–C
synchronization in hob axis shifting.
The specification of flexible synchronization control is as follows:
1) Master and slave axis numbers, and gear ratios are set in parameters.
2) These parameters are divided into four groups. So, four
synchronization operations can be performed simultaneously.
3) The same slave axis can be specified for more than one master axis.
4) Synchronization is started and canceled by DI signals received from
the PMC.
However, switching DI signals during an automatic operation requires
using M codes specified in parameters.
5) Two Cs axes can be used as master and slave axes.
6) Retraction is possible in the same manner as for hob functions.
7) Using feedback pulses for the spindle that runs on the Cs axis supports
feed per revolution.
The command format is G95 P_; where P_ is the Cs axis number.
Feed per minute function is included in the threading/synchronized
feed option.
K
+
+
–
–
Slave axis
Command
pulse
Position
control
Spindle amplifier
or servo amplifier
Spindle motor (Cs axis)
or servo motor
De-
tector
Position
control
Spindle amplifier
or servo amplifier
Spindle motor (Cs axis)
or servo motor
De-
tector
Synchronization switch
K: Synchronization coefficient
Master axis
Command
pulse
1.15
FLEXIBLE
SYNCHRONIZATION
CONTROL (M
SERIES)
General
D Block diagram