Omron SYSMAC C200H-NC111, Руководство по эксплуатации

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40
Table Creation
The internal processing of the Position Control Unit is as follows during table
creation.
1, 2, 3... 1. The speed difference,
∆
V, is obtained to express the range of speed set-
tings.
∆
V = MAX – MIN
where,
MAX: Twice the maximum set value (not to exceed 100,000).
MIN: Speed indicated by initial speed number.
2. The number of division steps, L, is determined such that the unit time for
each step is 4 ms. The maximum number of steps is 250.
L = (
∆
V/R)
where,
R:
Acceleration or deceleration data, whichever greater.
∆
V/R: Acceleration (or deceleration) time between MAX and MIN
4
3. Next, the speed difference (
∆υ
) for each step is obtained.
∆υ
= (
∆
V/L)
4. The divider ratios for all steps are calculated and set in a table.
Step
Target (step) speed Division ratio
1 MIN
2 MIN +
∆υ
3 MIN + 2 x
∆υ
L MAX
5. Example
Start speed 0 (pps)
Maximum value of speed data Nos. 1 to 15 20000 (pps)
Acceleration 100 (pps/1ms)
Deceleration 100 (pps/1ms)
DM Area Allocation
Section 3–7