Omron CJ2M-CPU Series User Manual

9 PWM Outputs
9-2
CJ2M CPU Unit Pulse I/O Module User’s Manual
9-1 PWM Outputs (Variable Duty Ratio
Pulse Outputs)
A PWM (Pulse Width Modulation) pulse can be output with a specified duty ratio. The duty ratio is the
ratio of the pulse's 'ON time and OFF time in one pulse cycle.
Use the PWM(891) instruction to generate PWM pulses from a pulse output.
The duty ratio can be changed during pulse output.
z Application Example
• Controlling temperature on a time-proportional basis using the PWM output.
• Controlling the brightness of lighting.
9-1-1 Overview
CJ2M CPU Unit
Pulse
I/O Module
Connecting Cable
Connector-Terminal Block
Conversion Unit
Duty ratio: 50%
Duty ratio: 15%
Duty ratio: 75%
Outputs
PWM output
Period is determined
by frequency.
100%
50%
75%
15%

Omron CJ2M-CPU Series Specifications

General

Power Supply	24 VDC
Number of Instructions	Over 400 instructions
Model	CJ2M-CPU11, CJ2M-CPU12, CJ2M-CPU13, CJ2M-CPU14, CJ2M-CPU15
Program Capacity	5K steps to 60K steps
I/O Capacity	Up to 2, 560 points
Communication Ports	Ethernet, USB, RS-232C
Execution Time	0.04 µs per basic instruction
Operating Temperature	0 to 55°C
Position Control	Supported
High-speed Counter	100 kHz max.
Pulse Output	100 kHz max.
Maximum Units	40 units
Storage Temperature	-20 to 75°C
Interrupt Inputs	Supported