Omron CJ1M-CPU21, Operation Manual

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Wiring Examples Section 3-3
Origin Search Operation The origin search operation is completed at the first phase-Z signal after the
rising edge of the Origin Proximity Input Signal is detected, deceleration is
completed, and the falling edge of the Origin Proximity Input Signal is
detected.
Example PLC Setup
Settings
Operating Mode 2 Connection Example
Operating mode 2 is the same as operating mode 1 except that the servo
driver's Positioning Completed Signal (INP) is used as the origin search's
Positioning Completed Signal.
In this example, a servo driver is used and the encoder's phase-Z output is
used as the Origin Input Signal terminal. The servo driver is an OMRON
Servo Driver (W-series, U-series, or SMART STEP A-series.
Set the Servo Driver so that the Positioning Completed Signal is OFF when
the motor is operating and ON when the motor is stopped. The origin search
operation won't end if the Positioning Completed Signal is not connected cor-
rectly from the Servo Driver or is not set correctly.
ORG(889)
instruction
Origin Proximity
Input Signal
Origin Input Signal
(phase-Z signal)
Pulse signal
Time
Error Counter
Reset Output
Approx. 20 to 30 ms
Programming
Console
address
Bits Setting Function
256 00 to 03 1 hex Enable origin search function for pulse
output 0.
257 00 to 03 1 hex Operating mode 1
04 to 07 0 hex Reverse mode 1
08 to 11 0 hex Read Origin Input Signal after Origin
Proximity Input Signal goes from OFF
to ON to OFF again.
12 to 15 0 hex Search direction is CW.
268 00 to 03 0 hex Limit Input Signal is a NC contact.
04 to 07 1 hex Origin Proximity Input Signal is a NO
contact.
08 to 11 1 hex Origin Input Signal is a NO contact.
12 to 15 0 hex ---