Omron CJ1W-C113 - REV 02-2008, Руководство по эксплуатации

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149
Origin Search Procedure Section 6-2
Note If an attempt to execute TEACH is made, a present position unknown error
(error code 5040) will be generated.
6-2 Origin Search Procedure
The data settings required to perform origin search for the X axis are given
here as an example.
1,2,3... 1. Set the common parameters. (Refer to 4-3 Common Parameter Area .)
m: Set the operating data area either to DM or to EM.
m+1: Set the beginning word of the operating data area (I).
m+2: Designate the axis parameters.
2. Set the axis parameters.
Set the I/O settings, operation mode selection, origin search operation, or-
igin detection method, initial speed, origin search high speed, origin search
proximity speed, origin compensation, origin search direction, origin
search acceleration time, and origin search deceleration time, and origin
search preset (supported for unit version 2.3 or later).
3. Power up again or restart.
The data for the common parameters set in 1 above is enabled.
4. Execute ORIGIN SEARCH.
Turn ON the ORIGIN SEARCH Bit in the operating memory area. Alterna-
tively, set the position to be preset and then turn ON the ORIGIN SEARCH
Bit in the operating memory area (supported for unit version 2.3 or later).
Note The origin search acceleration time set with the parameters is the time taken
to reach the maximum speed also set with the parameters. Similarly, the ori-
gin search deceleration time set with the parameters is the time taken to go
Function Operation
JOG (speed feeding) Before pulses are output, the present position is
taken to be 0.
ORIGIN RETURN Cannot be used. If an attempt to use this function
is made, a present position unknown error (error
code 5040) will be generated.
Direct opera-
tion ABSOLUTE
MOVEMENT Cannot be used. If an attempt to use this function
is made, a present position unknown error (error
code 5040) will be generated.
RELATIVE
MOVEMENT Before pulses are output, the present position is
taken to be 0. The specified number of pulses are
then output.
INTERRUPT
FEEDING Before pulses are output, the present position is
taken to be 0. If an interrupt input signal is subse-
quently input, the position at that point in time is
taken to be 0, and the specified number of pulses
are output.
Memory operation With memory operation, JOG, ABSOLUTE
MOVEMENT, RELATIVE MOVEMENT, and
INTERRUPT FEEDING can be operated in combi-
nation but positioning cannot be performed for an
absolute position. If an attempt to perform abso-
lute positioning is made, a present position
unknown error (error code 5040) will be gener-
ated.