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ORIGIN SEARCH
Proximity Speed Number
(Low Speed)
DM word m+1, bits 03-00
Set to an integer between 1-F (hex). The speed number set here refers to
one of the speeds set in DM words m+82 through m+96. It cannot be set
higher than the ORIGIN SEARCH high speed number. If there is no origin
proximity signal, the speed designated here is used for the entire ORIGIN
SEARCH operation.
ORIGIN SEARCH
High Speed Number
DM word m+1, bits 07-04
Set to an integer between 1-F (hex). The speed number set here refers to
one of the speeds set in DM words m+82 through m+96. The speed desig-
nated here is used only if an origin proximity signal is present.
Origin Compensation
DM words m+2 and m+3
Set word m+2 to a value between 0000 and 9999 pulses.
Set bit 00 of word m+3 to set the direction of compensation:
0:
CW
1:
CCW
If the position determined by origin signal input is to be treated as the origin
(position 0), set word m+2 to 0. Otherwise set the value and direction neces-
sary to obtain the required origin. If there is an origin compensation value set
in word m+2, then, after reaching the position determined by origin signal
input, compensation will be executed at proximity speed in the direction set
at bit 00 of word m+3. See the example given below and 4–2–3 Execution
Examples for application.
In the example diagram below, bit 00 of word m+3 is set at 1, so origin com-
pensation is counterclockwise.
Proximity signal
Origin signal
Pulse output
CCW
Deceleration
Search direction: CCW
Acceleration
Initial speed
positioning axis
Compensation
CW
ORIGIN SEARCH high speed
0.5 s pause
Proximity speed
Proximity speed
4–2–2
IR Area Settings
In C200H PCs, IR words 100 to 199 are used for Special I/O Units. When a
Position Control Unit is used, they are allocated as I/O refresh areas. For a
detailed explanation, see 3–4 Data Configuration and Allocation. For a de-
tailed table of words and bits in the IR area, see Appendix D IR Area Alloca-
tions.
Origin Search
Section 4–2
Содержание SYSMAC C200H-NC111
Страница 1: ...Cat No W137 E1 04 Position Control Unit SYSMAC C200H NC111...
Страница 2: ...SYSMAC C200H NC111 Position Control Unit Operation Manual Revised September 2003...
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