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17.6 Target Speed Change Function
17.6.1 Overview
The target speed change function is used to change the target speed to any speed according
to the position control data tables in operation. The operation amount in the data table will not
be changed even if the speed is changed.
Use Conditions
The use conditions of the target speed change function are as follows.
A: Available, N/A: Not available
Separate axis control
Control
Interpolation control
method
Synchronous control
E-point
P-point
C-point
J-point
Operation
pattern
Repetition control
JOG operation
Home return
Speed change mode
This is a method in which a desired speed is specified directly and the change is requested by
I/O.
Speed direct
specification
The valid range of the function can be selected from two patterns, which are "Active table only"
and "Active table to completion of operation".
This is a function to change a set speed using a specified ratio (%).
The change request by I/O is not necessary, and the change is reflected when the set value
Ratio
(ratio) is changed.
specification
The function is valid for all the positioning operations after the set timing.
(Override)
The ratio specification also becomes valid when the speed is changed by the speed direct
specification.
A
・In the case of the synchronous control, the speed can be
changed only for the master axis.
N/A
(Slave axes operate according to the master axis.)
A
A
・The speed can be changed more than once in one table.
A
・The speed cannot be changed during the deceleration in
accordance with the stop operation.
A
・The speed cannot be changed during the deceleration in the
N/A
C point control.
・The speed cannot be changed during the dwell time in the C
point control.
A
・For the J point control, use "J point speed change contact"
to change the speed.
・For the JOG operation, change "JOG operation target
N/A
speed" directly to change the speed.
N/A
17.6 Target Speed Change Function
17-11
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