Delta DVP-SS2 User Manual

DVP-ES2/EX2/EC5/SS2/SA2/SX2/SE&TP Operation Manual - Programming
3-512
3. Description of the number of output pulses in the idle time:
3000ms3000ms
1 1
22
3 3
44
5 5
66
7 7
......
19 19
2020
Pulse speed(Hz)
Target speed
Time(Sec)
Ramp down time
Ramp up time
Target number
of feedbacks
Time interval for the pulse
output in each shift is 1/20
of the ramp up tim e/ramp
down time.
20-shifts
20-shifts
The c h a n ge o f th e f re q u e n c y
in e ve ry s h if 1 /2 0
is o f th e
. m o s t h igh s p e e d
Idle time
Number of pulses in the Idle time
The number of pulses in the last
section of the ramp down time is not included
Number of pulses in the Idle time
The number of pulses in the last
section of the ramp down time is included.
ES2/EX2 V3.28 (and below), SA2/SX2 V2.82 (and below), and SS2/SE:
The nunmber of ouput pulses in the idle time in D1244/D4245 includes the numbers of pulses
in the last section of the ramp down time. If the target number of feedbacks is 50000, the
number of output pulses in the idle time is 1000, the number of pulses in the laste section of the
ramp down time is 50, and no external interrupt occurs, the total number of pulses will be
50665 (50000+100-50).
ES2/EX2 V3.40 (and above), and SA2/SX2 V2.84 (and above):
The nunmber of ouput pulses in the idle time in D1244/D4245 does not include the numbers of
pulses in the last section of the ramp down time. If the target number of feedbacks is 50000,
the number of output pulses in the idle time is 1000, the number of pulses in the laste section of
the ramp down time is 50, and no external interrupt occurs, the total number of pulses will be
51000 (50000+100).
4. Principles for adjusting the completion time of positioning:
a) The completion time of positioning refers to the total time of “ramp up + high speed + ramp
down + idle” (see the figure above). When percentage value (D1131/D1132) is modified,
the total of output pulses will be increased or decreased as well as the completion time.
b) When S
1
designates input points X with interrupt pointers, D1244 / D1255 can be applied
for setting the idle time as limited pulse number, in case the interrupt is not properly
triggered.Users can determine if the execution result is good or bad by the length of the
idling time. In theory, a bit of idling left is the best result for a positioning.
c) Owing to the close loop operation, the length of idle time will not be the same in every
execution. Therefore, when the content in the special D for displaying the actial number of
output pulses is smaller or larger than the calculated number of output pulses (target
number of feedbacks x percentage value / 100), users can improve the situation by
adjusting the percentage value, ramp-up/ramp-down time or target frequency.

Delta DVP-SS2 Specifications

General

Brand	Delta
Model	DVP-SS2
Category	Controller
Language	English