Controlling External I/O
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31.5.10 Acceleration/Deceleration Pulse Output

Pulse output includes normal pulse output, which outputs a frequency set to a predetermined pulse count, and acceleration/deceleration pulse output, which gradually increases the frequency up to a set pulse-output value.
You can use up to 4 acceleration/deceleration pulse outputs in the LT3000 Series or STC6000 Series, and up to 2 in the LT4000 Series. The main features of accelerating pulse output are shown in the following table.

Summary of functions

Data Storage

Sets the constant output frequency

31.5.8.1 Output Frequency - PWM Output

Sets the initial output frequency

31.5.10.3 Initial Output Frequency - Acceleration/Deceleration Pulse Output

Sets the time changes from the initial output frequency to the normal output frequency.

31.5.10.4 Acceleration/Deceleration Time - Acceleration/Deceleration Pulse Output

Creates the acceleration/deceleration table

31.5.10.5 Acceleration/Deceleration Create Table Request and Completion Acknowledgment - Acceleration/Deceleration Pulse Output

Checks abnormal status of each parameter

31.5.10.8 Abnormal Status of Acceleration/Deceleration Pulse Output - Acceleration/Deceleration Pulse Output

Starts and stops the acceleration/deceleration pulse output

31.5.10.6 Acceleration/Deceleration Pulse Output Control - Acceleration/Deceleration Pulse Output

Checks the start and stop status of the acceleration/deceleration pulse output

31.5.10.7 Output Status and Output Completion Status of Acceleration/Deceleration Pulse Output - Acceleration/Deceleration Pulse Output

Checks the status of the output terminal

31.5.10.9 Acceleration/Deceleration Pulse Output Terminal Status - Acceleration/Deceleration Pulse Output

Sets the output pulse count

31.5.9.2 Output Pulses - Normal Pulse Output

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 acceleration/deceleration pulse output is summarized below.

Setting Up Initial Values

Refer to the setup procedures for GP-Pro EX

 

Changing After System is Running

  1. Set up the following in system variables: Output frequency, output pulse count, initial output frequency, acceleration time, deceleration time

    Output frequency (Hz): #L_PLS*_LHZ

    Output pulse count: #L_PLS*_NUM

    Initial output frequency (Hz): (#L_PLS*_SHZ)

    Acceleration time (milliseconds): #L_PLS*_ACC

    Deceleration time (milliseconds): #L_PLS*_DEC

    • On the LT3000 Series or STC6000 Series, use #L_PLS*_ACC to set up the acceleration/deceleration time (milliseconds).

  2. Create acceleration/deceleration table
    To reflect the setup values on the I/O driver, turn ON the table creation request bit in the #L_ExIOAccelPlsTbl system variable.

  3. Confirm the acceleration/deceleration table was created
    Confirm the create table completion bit is ON in the #L_ExIOAccelPlsTbl system variable.

  4. Enable the acceleration/deceleration pulse output function
    Turn ON the acceleration/deceleration pulse output bit in the #L_ExIOSpCtrl system variable.

    • When using the acceleration pulse output, turn ON the acceleration pulse output bit in the #L_ExIOSpCtrl system variable. You can use acceleration pulse output with the LT4000 Series only.

  5. Start pulse output
    Turn ON the pulse output control bit in the #L_ExIOSpCtrl system variable.

  6. Confirm pulse output
    Confirm the pulse output status bit is ON in the #L_ExIOSpCtrl system variable.