Mitsubishi A1SD75M3 User Manual page 516

12 CONTROL AUXILIARY FUNCTIONS
Md. 50 In speed change processing flag
Cd. 16 New speed value
Designated speed in P2
Designated speed in P1
(1) Control details
The following drawing shows the operation during a speed change.
V
Fig. 12.22 Speed change operation
(2) Precautions during control
(a) Control is carried out as follows at the speed change during continuous path
control.
1) When no speed designation (current speed) is provided in the next
positioning data:
The next positioning data is controlled at the " Cd.16 New speed
value".
2) When a speed designation (current speed) is provided in the next
positioning data:
The next positioning data is controlled at its command speed
( Da.7 ).
Positioning control
Fig. 12.23 Speed change during continuous path control
(b) When changing the speed during continuous path control, the speed change
will be ignored if there is not enough distance remaining to carry out the
change.
Speed changes to V2.
Speed changes to V3.
V1
V2
Next control
P1
P2
[a] When no speed designation
[b] When a speed designation
Speed change
command
12 - 44
MELSEC-A
Operation during
positioning by V1.
V3
t
(current speed) is provided.
is provided.