Pulse Generators Embedded Function

Overview

The pulse generated embedded functions available with the M241 are:

PTO The PTO (Pulse Train Output) implements digital technology that provides precise positioning for open loop control of motor drives.

PWM The PWM (Pulse Width Modulation) function generates a programmable square wave signal on a dedicated output with adjustable duty cycle and frequency.

FreqGen The FreqGen (Frequency Generator) function generates a square wave signal on dedicated output channels with a fixed duty cycle (50%).

Accessing the Pulse Generators Configuration Window

Step	Description
1	Double-click Pulse Generators on the Devices tree. The Pulse Generation Function window appears:
2	Double-click Value and choose the pulse generator function type to assign.

Step

Description

Double-click Pulse Generators on the Devices tree.

The Pulse Generation Function window appears:

Double-click Value and choose the pulse generator function type to assign.

Pulse Generators Configuration Window

The figure shows a sample Pulse_Generators configuration window used to configure a PTO, PWM, or FreqGen function:

The following table describes the areas of the Pulse_Generators configuration window:

Number	Action
1	The instance name of the function and the currently configured pulse generator function type .
2	Click + to configure a new instance of pulse generator function.
3	Double-click the Value column to display a list of the pulse generator function types available.
4	Double-click the Instance name value to edit the instance name of the function. The Instance name is automatically given by EcoStruxure Machine Expert. The Instance name parameter is editable and allows you to define the instance name. However, whether the Instance name is software-defined or user-defined, use the same instance name as an input to the function blocks dealing with the counter, as defined in the Counters editor.
5	Configure each parameter by clicking the plus sign next to it to access its settings. The parameters available depend on the type of pulse generator used.

For detailed information on configuration parameters, refer to the M241 PTOPWM Library Guide.