
1.AXIS CONTROL B-63943EN-1/02
- 218 -
Parameter
- Setting data (parameters)
The parameters that are generally set for each axis can, when set for
axes under tandem control, be classified into the following three
groups:
i) Parameters in which identical values must be set for the master
and slave axes
ii) Parameters that must be specified only for the master axis (The
corresponding parameter for the slave axis is not used.)
iii) Parameters for which different values may be set for the master
and slave axes
The classifications of the parameters are described below. Any
parameter that is not listed in the tables for the three classifications
should be processed as a parameter of type i) and, specify identical
values for the master and slave axes.
CAUTION
Note that, if different values are set for the master
and slave axes in a parameter of type i), the
operations for the two axes of tandem control will
not be performed correctly.
• Care must be taken to specify the following two servo parameters,
according to the directions of rotation around the master and
slave axes.
No. 2022 Direction of rotation of the motor
No. 2087 Preload value
In parameter 2022, specify 111 for forward rotation and -111 for
the reverse rotation.
In parameter 2087, specify values having identical signs when
the motors of the master and slave axes rotate in opposite
directions. Specify values having different signs when the motors
of the master and slave axes rotate in the same direction.
• If a separate pulse coder is used, use of the separate pulse coder
must be set for the master axis. For the slave axis, use of a
built-in pulse coder must be set. Therefore, pay particular
attention to setting the following parameters.
No. 1815#1 Separate pulse coder
No. 1816#6 to #4 Detection multiplier (DMR)
No. 2024 Number of position detection feedback pulses (PPLS)
No. 1821 Capacity of an optional reference counter
No. 2084 Numerator of flexible feed gear ratio
No. 2085 Denominator of flexible feed gear ratio