30.5.8 PWM Output (LT Series)

PWM output is a feature that outputs a pulse with a set output frequency when the set duty turns ON. A maximum of four channels can be set for PWM output, which can be individually set. By connecting SSR to PWM output terminal, analog control for heaters becomes possible. The main features of PWM output are shown in the following table.

Summary of functions

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Sets the output frequency

30.5.8.1 Output Frequency - PWM Output (LT Series)

Sets the ON Duty

30.5.8.2 ON Duty Value - PWM Output (LT Series)

Parameter change

30.5.8.3 Parameter change request and change completion acknowledgment - PWM Output (LT Series)

Checks abnormal status of the output frequency and ON Duty

30.5.8.4 Abnormal Status of PWM Output - PWM Output (LT Series)

Starts and stops the PWM output

30.5.8.5 PWM Output Control - PWM Output (LT Series)

Checks the status of start and stop PWM output

30.5.8.6 PWM Output Status - PWM Output (LT Series)

Checks the status of the output terminal

30.5.8.7 PWM Output Terminal Status - PWM Output (LT Series)

Summary

In GP-Pro EX, you can set up the initial value for each parameter. After the system is running, you can change parameters with system variables.

The procedure for setting the PWM output is summarized below.

Setting Up Initial Values

Refer to the setup procedures for GP-Pro EX

 

Changing After System is Running

  1. Set the output frequency and the ON duty value.

  2. Set the parameter under [Request Special I/O Parameter change].

  3. Under [Special I/O Parameter Change Completed], acknowledge that the parameter has been changed.

  4. Output the data with [Control Special I/O].

  5. See "Special I/O state" for acknowledgment.