8-43
8 Pulse Outputs
CJ2M CPU Unit Pulse I/O Module User’s Manual
8-5 Defining the Origin
8
8-5-3 PLC Setup
* The actual monitoring time will be the Positioning Monitor Time rounded up to the nearest 10-ms increment +
10 ms max. If the Positioning Monitor Time is set to 0, the function will be disabled and the Unit will continue wait-
ing for the positioning completed signal to come ON. (A Positioning Timeout Error will not occur.)
Note The power supply must be restarted after the PLC Setup is transferred in order to enable the settings for
using the origin search.
Origin search and origin return settings can be changed during operation by executing the INI(880)
instruction.
Precautions for Correct UsePrecautions for Correct Use
Values in the PLC Setup will not change. If the power is cycled, the values in the PLC Setup will
be applied.
Origin
Search
Proximity
Speed (pps)
Sets the motor's speed after the origin proximity input signal is detected. Specify the speed in
the number of pulses per second (pps).
Setting range: 0 to 100 kpps
The origin search will not be performed in these cases: Origin search high speed ≤ Origin
search proximity speed. Origin search proximity speed ≤ Origin search initial speed.
Correction
Value
After the origin has been defined, the origin compensation can be set to compensate for a shift
in the Proximity Sensor's ON position, for motor replacement, or for other changes.
Setting range: −2,147,483,648 to 2,147,483,647 (pulses)
Once the origin has been detected in an origin search, the number of pulses specified in the ori-
gin compensation is output, the present position is reset to 0, and the pulse output's No-origin
Flag is turned OFF.
Acceleration
Rate
Setting range: 0 to
65,535 pps/ 4 ms
Sets the motor's acceleration rate when the origin search is executed.
Specify the amount to increase the speed (pps) per 4-ms interval.
Deceleration
Rate
Setting range: 0 to
65,535 pps/ 4 ms
Sets the motor's deceleration rate when the origin search function is
decelerating. Specify the amount to decrease the speed (pps) per 4-ms
interval.
Positioning
Monitor Time
(ms)
Setting range: 0 to
9,999 ms*
When the operation mode is set to mode 2, this setting specifies how
long to wait (in ms) for the positioning completed signal after the posi-
tioning operation has been completed, i.e., the pulse output has been
completed.
A Positioning Timeout Error (error code 0300) will occur if the motor
drive's positioning completed signal does not turn ON within the speci-
fied time.
Origin
Return
Target Speed
(pps)
Setting range: 1 to
100 kpps
Sets the motor's target speed when the origin return is executed.
Specify the speed in the number of pulses per second (pps).
Acceleration
Rate
Setting range: 0 to
65,535 pps/ 4 ms
Sets the motor's acceleration rate when the origin return operation
starts.
Specify the amount to increase the speed per 4-ms interval in 1-pps
increments.
Deceleration
Rate
Setting range: 0 to
65,535 pps/ 4 ms
Sets the motor's deceleration rate when the origin return function is
decelerating.
Specify the amount to decrease the speed per 4-ms interval in 1-pps
increments.
Changing Parameters during Operation
Item Selection Description
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