KEYENCE Visual KV Series - Manual (Page 321)

6.3 Positioning Control
KV
-300
KV-10/80
3-297
1 6
Chapter 6 Interrupts, High-speed Counters, Positioning Control
Run
Start
Acceleration/ deceleration time
∆t
Setting and application of parameters
This section describes how to set and apply parameters for positioning control.
Setting parameters
Set the parameters to the assigned data memory addresses. To operate the
positioning control function, the special utility relays must be set.
➮ Refer to page 3-299.
The following table shows the parameters and assigned DM Nos.
Note: Refer to the following expression to determine the output pulse count.
Output pulse count < (65535 x pulse change cycle [ms]) ÷ (1000 x run frequency
[Hz])
■ Pulse change cycle (∆t)
The pulse change cycle is the cycle in which the output clock pulse frequency is
changed for acceleration or deceleration. The pulse change cycle is obtained from
one of the following expressions, whichever produces the smaller solution. However,
when the start pulse is less than 500 Hz, the pulse change cycle becomes 14 ms or
more.
Pulse change cycle (∆t) [ms] = (acceleration time [ms] + 199) ÷ 200 x 4
or
Pulse change cycle (∆t) [ms] = 1000 ÷ (run frequency [Hz] ÷ 1000)
DMNo. Parameter Allowable setting range
DM9407 Set value error code Code 11 to 17 or FFFF (-1)
is entered when error occurs
X-axis DM9408 0500 Start frequency (Hz) 153 to 50000
(0500) DM9409 0500 Run frequency (Hz) 153 to 50000
DM9410 0500 Acceleration/deceleration 0 to 4096
time (ms)
DM9411 0500 Output pulse count 0 to 65535
(high-order 16 bits)
DM9412 0500 Output pulse count 0 to 65535
(low-order 16 bits)
Y-axis DM9413 0501 Start frequency (Hz) 153 to 50000
(0501) DM9414 0501 Run frequency (Hz) 153 to 50000
DM9415 0501 Acceleration/deceleration 0 to 4096
time (ms)
DM9416 0501 Output pulse count 0 to 65535
(high-order 16 bits)
DM9417 0501 Output pulse count 0 to 65535
(low-order 16 bits)
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