Omron CJ2M-CPU Series - Ladder Program Example

9-5
9 PWM Outputs
CJ2M CPU Unit Pulse I/O Module User’s Manual
9-1 PWM Outputs (Variable Duty Ratio Pulse Outputs)
9
9-1-4 Ladder Program Example
This example shows how to use PWM output 0 to control the brightness of a light bulb.
Refer to 4-3-2 Wiring Examples for details on suppressing the load's inrush current and modify the cir-
cuit if necessary.
When the start input (CIO 2960.00) turns ON in this example, pulses with a duty ratio of 40% at a
frequency of 2,000 Hz are output from PWM output 0. When the stop input (CIO 2960.01) turns ON,
PWM output 0 is stopped.
PWM(891)
INI(880)
Wiring Example
9-1-4 Ladder Program Example
Specifications and Operation
Applicable Instructions
35
37, 38
39, 40
L
+
−
Pulse I/O Module (Sinking Outputs)
24-VDC
power
supply
Power supply
input for outputs
PWM output 0
Output
COM
Start input: CIO 2960.00
Frequency:
2,000 Hz, 500 µs
Stop input: CIO 2960.01
Duty ratio:
40%, 200 µs