Omron CJ1M-CPU22 User Manual

181
Origin Search and Origin Return Functions Section 6-3
Setting range: 80000000 to 7FFFFFFF hex (−2,147,483,648 to 2,147,483,647)
pulses
I/O Settings Limit Input Signal Type
Specifies the type of input signal (normally closed or normally open) being
used for the limit inputs.
0: NC
1: NO
Origin Proximity Input Signal Type
Specifies the type of input signal (normally closed or normally open) being
used for the Origin Proximity Input Signal.
0: NC
1: NO
Origin Input Signal Type
Specifies the type of input signal (normally closed or normally open) being
used for the Origin Input Signal.
0: NC
1: NO
Positioning Monitor Time When the operating mode is set to mode 2, this setting specifies how long to
wait (in ms) for the Positioning Completed Signal after the positioning opera-
tion has been completed, i.e., the pulse output has been completed. A Posi-
tioning Timeout Error (error code 0300) will be generated if the motor driver's
Positioning Completed Signal does not come ON within the specified time.
Setting range: 0000 to 270F hex (0 to 9,999 ms)
The actual monitoring time will be the Positioning Monitor Time rounded up to
the nearest 10-ms unit + 10 ms max.
If the Positioning Monitor Time is set to 0, the function will be disabled and the
Unit will continue waiting for the Positioning Completed Signal to come ON. (A
Positioning Timeout Error will not be generated.)
Executing an Origin Search
Execute ORG(889) in the ladder program to perform an origin search with the
specified parameters.
Restrictions
The motor can be moved even if the origin position has not been determined
with the origin search function, but positioning operations will be limited as fol-
lows:
P
C
ORG(889)
P: Port specifier
Pulse output 0: #0000
Pulse output 1: #0001
C: Control data; Origin search and CW/CCW method: #0000
Origin search and pulse + direction method: #0001
Function Operation
Origin return Cannot be used.
Positioning with absolute
pulse specification
Cannot be used.
Positioning with relative
pulse specification
Outputs the specified number of pulses after setting the
current position to 0.

Omron CJ1M-CPU22 Specifications

General

CPU Model	CJ1M-CPU22
Program Memory	10K steps
Data Memory	32K words
Power Supply	24 VDC
Operating Temperature	0 to 55 °C
Number of Timers/Counters	256
Ethernet Port	No
Communication Ports	RS-232C
Execution Speed (LD instruction)	0.1 μs
High-speed Counter	2 channels
Weight	500g

Summary

PRECAUTIONS

General Precautions

Safety Precautions

Critical safety measures to prevent injury or damage when using PLC and PLC Units.

SECTION 3 I/O Specifications and Wiring

3-1 I/O Specifications

Provides detailed specifications for all built-in inputs and outputs.

3-2 Wiring

Explains connector pin assignments and wiring methods for system connections.

SECTION 4 Data Area Allocation and PLC Setup Settings

4-1 Data Area Allocation for Built-in I/O

4-2 PLC Setup Settings

Explains the configuration settings required in CX-Programmer for built-in I/O.

SECTION 5 High-speed Counter/Pulse Output Instructions

5-1 MODE CONTROL: INI(880)

5-2 HIGH-SPEED COUNTER PV READ: PRV(881)

5-4 REGISTER COMPARISON TABLE: CTBL(882)

5-5 SPEED OUTPUT: SPED(885)

Details the SPED(885) instruction for setting output frequency and starting pulse output.

5-6 SET PULSES: PULS(886)

5-7 PULSE OUTPUT: PLS2(887)

Details the PLS2(887) instruction for outputting pulses with acceleration/deceleration.

5-8 ACCELERATION CONTROL: ACC(888)

Explains ACC(888) for controlling pulse output with specified acceleration/deceleration rates.

5-9 ORIGIN SEARCH: ORG(889)

Describes the ORG(889) instruction for performing origin search or origin return operations.

5-10 PULSE WITH VARIABLE DUTY FACTOR: PWM(891)

SECTION 6 Built-in I/O Function Descriptions

6-1 Built-in Inputs

6-2 Built-in Outputs

6-3 Origin Search and Origin Return Functions

Explains the detailed application of origin search and origin return functions.