S7-200 SMART CPU provides maximum three 100KHz high speed pulse outputs, it can be configured for PWM output or motion control output through the powerful and flexible setup wizard, roviding a unified solution for speed and position control of both the stepper motor or servo motor, satisfying the precise positioning requirements of the small mechanical equipment.
S7-200 Smart PLC Motion control
Basic functions of motion control
• Standard type transistor output module CPU, ST30/ST40/ST60 provides three 100 kHz high speed pulse output (ST20 provides two 100 kHz), supports PWM (pulse width modulation) and PTO (pulse
rain output).
• In PWM mode, the cycle of the output pulse is fixed, the pulse width and duty cycle are adjusted by the program, which can adjust the speed of the motor, the opening of valves etc.
• In PTO mode (motion control), the output pulse can be configured as multiple modes of operation, including automatically finding the original point, for realising the control of the stepper motor or servo motor, achieving the purpose of speed adjustment and positioning;
• The Q0.0, Q0.1 and Q0.3 on the CPU body can be configured as the PWM output or high speed pulse output, the above functions can be set up via the Wizard;
rain output).
• In PWM mode, the cycle of the output pulse is fixed, the pulse width and duty cycle are adjusted by the program, which can adjust the speed of the motor, the opening of valves etc.
• In PTO mode (motion control), the output pulse can be configured as multiple modes of operation, including automatically finding the original point, for realising the control of the stepper motor or servo motor, achieving the purpose of speed adjustment and positioning;
• The Q0.0, Q0.1 and Q0.3 on the CPU body can be configured as the PWM output or high speed pulse output, the above functions can be set up via the Wizard;
PWM and motion control wizard settings
In order to simplify the control functions in your application, the position control wizard provided by the STEP 7- Micro/WIN SMART can help you complete the PWM and the PTO configuration in a few minutes. The wizard can generate the position instructions, you can dynamically control the speed and position in your application with these instructions. According to the user selected PWM pulse number, the PWM wizard can generate PWMx_RUN subroutine frame corresponding to editing. Motion control wizards can maximally provide the settings for three pulse outputs, the pulse output speed is adjustable from 20 Hz to 100 kHz.
Motion control features
• It provides configurable measurement system, it can use the engineering units (such as inches or centimetres) when inputting the data, and can also use the pulse number.
• it provides configurable backlash compensation;
• it supports the absolute, relative and manual control modes;
• it supports the continuous operation;
• it provides up to 32 groups of motion envelope, each envelope can set maximally 16 levels of speed;
• it provides 4 different reference point searching modes, each mode can select the initial direction search and the final approach direction.
• it provides configurable backlash compensation;
• it supports the absolute, relative and manual control modes;
• it supports the continuous operation;
• it provides up to 32 groups of motion envelope, each envelope can set maximally 16 levels of speed;
• it provides 4 different reference point searching modes, each mode can select the initial direction search and the final approach direction.
Monitoring of motion control
In order to help users develop motion control scheme, STEP 7- Micro/WIN SMART provides the motion control panel. The operation, configuration and envelope configuration settings let the users easily monitor, on the motion control function operation, the start and test phases in the development process.
• The use of the motion control panel can verify whether the motion control wiring is correct or not, you can adjust the configuration data and test each mobile envelope;
• Display the current speed, current position and direction of the bit control, as well as the input and output of LED (except pulse LED) status;
• View to modify the configuration settings of the bit control operation stored in the CPU module
• The use of the motion control panel can verify whether the motion control wiring is correct or not, you can adjust the configuration data and test each mobile envelope;
• Display the current speed, current position and direction of the bit control, as well as the input and output of LED (except pulse LED) status;
• View to modify the configuration settings of the bit control operation stored in the CPU module