Speed Change Function - Mitsubishi MELSEC-Q Series User Manual

11
AUXILIARY FUNCTION
11.3

Speed Change Function

This function changes the speed within "
of speed control or JOG operation.
Set the new speed in "
"
Cd.3
The acceleration/deceleration time at speed change and deceleration stop time to stop
control after speed change are the values set in "
(1) Control contents
[Speed change during speed control]
V
Da.4
Command
speed
Positioning start signal
(Y8 to YA)
Axis stop signal (Y4 to Y6)
Cd.3 Speed change request
Cd.1 New speed value
[Speed change during JOG operation]
V
JOG.1 JOG sped
JOG.2
JOG start signal (YC to Y11)
Cd.3
Speed change request
Cd.1 New speed value
New speed value". The speed is changed according to
Cd.1
Speed change request".
The following shows the operation during speed change.
V1
Speed control start
Da.3 ACC/DEC time
ON
OFF
OFF
OFF
V2
V1
JOG operation start
JOG ACC/DEC time
ON
OFF
OFF
V2
Figure 11.1 Speed change operation
Speed limit value" during the constant speed
Pr.4
ACC/DEC time at speed change".
Cd.2
By turning ON the speed change request,
the speed is changed at the speed preset
to " Cd.1 New speed value".
V2
Cd.2 Cd.2
ON ON
By turning ON the speed change request,
the speed is changed at the speed preset
to " Cd.1 New speed value".
V3
V2
Cd.2 Cd.2
ON ON
11.3 Speed Change Function
Axis stop by turning ON the
axis stop signal (Y4 to Y6)
(The axis decelerates at the
acceleration same with at
V3
speed change from V2 to V3.)
ON
V3
Axis stop by turning OFF the
JOG start signal (YC to Y11)
(The axis decelerates at the
acceleration same with at
speed change from V2 to V3.)
V3
11
9
10
11
12
t
13
14
15
t
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