LSIS XBE-DC08A, Руководство пользователя, Страница: 402 / 1284

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Chapter 4 Positioning Parameter & Operation Data
4-3
4.2.2 Basic parameter setting
(1)
Unit
(a) You can set the command unit for positioning control according to control object. The command unit (mm, inch, pulse,
degree) can be set for each axis separately.
(b) In case of changing the unit setting, as the value of other parameter and operation data does not change, the value of
parameter or operation data should be set within the setting range of the unit to be changed.
Ex) mm, inch, pulse : X-Y Table, Conveyor
degree : a body of rotation (360degree/revolution)
(2)
Pulse per Revolution
(a) Only in case of using mm, inch, degree as a positioning command unit, you should set pulse per revolution
(b) In case of using SERVO, you should set the value of “the number of out put pulse per revolution”
.
If this value does not correspond with parameter value of servo drive, command and motor action may be different.
Travel per pulse = Transfer per rotation (Al) / Pulse per rotation (Ap)
Ex1) Speed: 60mm/min, Al:2000um, Ap: 200pls/revolution
60mm/min = 1mm/sec = 1000um/sec
1000um = 0.5 Revolution = 100pls

Pulse output speed is 100pls/sec when driving 60mm/min speed.
(3)
Travel per rotation and unit multiplier
(a) Only in case of using mm, inch, degree as a positioning command unit, you should set travel per revolution and multiplier
(b) Actual Machine’s travel distance per revolution of motor is determined by the structure of machine.
If the lead of ball screw (mm/rev) is PB and the rate of deceleration is 1/n,
Transfer amount per revolution (AL) = PB ×1/n.
(c) Settable Travel per revolution (AI) is as below
In case Transfer amount per revolution (AL) exceeds the above range, The travel per rotation (AI) should be set as follows:
•
Transfer amount (AL) = PB ×1/n = Travel per rotation (AI) × Unit multiplier (Am)
[
Note
]
In case unit is mm, unit multiplier (Am) can be 1,10,100,1000.
If the value of “PB ×1/n” exceeds 20,000,000.0
㎛
, it is required to adjust the unit multiplier so that the travel per rotation (Al) does not
exceed 20,000,000.0
㎛
.
Ex1) In case that (AL)
= PB ×1/n = 2500000.0
㎛
(= 2500
㎜
)

Transfer amount per revolution (AL) = (Al) × (Am) = 25000000 ×1
Ex2) In case that (AL)
= PB ×1/n = 25000000.0
㎛
(= 25000
㎜
)

Transfer amount per revolution (AL) = (Al) × (Am) = 25000000 ×10 = = 2500000 ×100
Setting unit mm Inch degree
Travel per revolution 0.1 ~ 20000000.0 um 0.00001 ~ 2000.00000 inch 0.00001 ~ 2000.00000 degree