Sea for N type PLC, for the precision of the leadscrew working long hours and repetitive design - validation Industrial control -

A background for a project, test validate the precision of the leadscrew working long hours and repeatability, the use of the sea for N type PLC controller send stepping drive continuous pulse to control step motor makes screw do reciprocating linear motion. Continuous work a week later, the motion precision and repeatability data comparison. N series PLC, of course, also can do simple linear interpolation movement and the movement of circular interpolation, no application here, later have the opportunity to test can be performed.

2, hardware configuration, the controller USES the sea for N series sports CPU models for N16S2T, the CPU provides 4 200 KHZ high-speed pulse input and four road 200 KHZ high-speed pulse output, CPU for stepping drive pulse control output. 24 v power supply for stepping drive and CPU output power, the CPU input point can be used by the CPU power supply 24 v power supply work. In addition, for the simple test task allocation three since the reset button, respectively for system start-up, stop system, the system reset function. Concrete control requirements are as follows:

1, when the system under the condition of the electrical zero point, press the start button can run the system, operation system after the screw on the slider will be in accordance with the form of a ball screw for reciprocating motion.

2, when the system under the running condition, or back to zero state, press the stop button system, the CPU will stop pulse output, stop rotating motor.

3, when the system is power on, you must first systematically back to zero, the system start button is invalid.

3, 1, the use of the sea for the programming software program design, for engineering hardware configuration as shown in figure in the first place, set the PLS0 channel 1.

2. Click on the main program block set up the main program, because of the small amount of program so directly in the main program to program. The testing tasks, the use of the function block is mainly D. PLSR（ Deceleration pulse output function block) PSTOP ( Pulse stop output function block) ZRN ( The origin regression function block) And SETZ ( Set the electric zero function block) 。 Part of the program are as follows:

4, 1, system debugging and running offline debugging, using HaiweiHappy software own offline tested off-line program debugging, check the logic control relations.

2, on-line debugging, communications cable to the CPU module is connected to a computer via a serial port, to carry on the on-line debugging, observe the workings of the equipment, to further check the logic control function, and adjust the pulse output pulse number and pulse frequency and deceleration parameters such as time.

3, system operation.

5, test conclusion based on the movement of a ball screw distance of repeated measurements. Can attest to the sea for the N series N16S2T the CPU in a regular environment, long work stability and repeatability of the equipment is guaranteed.

6, using the experience for the first time to use the sea for PLC controller, thanks to the sea for staff for I applied for a N type PLC, first to get the product packaging appearance was well-behaved. Hardware wiring and interface configuration, is modest in the domestic brands. But the individual feels the sea for the programming software still has a lot of bright spots:

1, software get started quickly, double-click to open after only need new project, the system will prompt you need to do next and what jobs are instantly, let your project IO points, configuration of storage area such as be clear at a glance.

2, in the written application, call the function block, such as call D. PLSR, automatically fill in the corresponding register function of the system, the following figure. Don't have to check the manual and fill out manually.

3, debugging is divided into offline debugging and on-line debugging need not install other software, basic need not be clear at a glance, the manual operation, know how to operate very simple directly.

overall, Haiwell PLC used for the first time a general sense that the competitors, to find the information of high efficiency, all the key points in the documentation directory of the be clear at a glance, function block feature-rich, free serial port communication become the basic configuration, can improve equipment integration, as some of the manufacturers agreement protocol conversion equipment can need not the third party. Finally have a little comment for motion control, in the motion control programming, if one is set in the programming interface movement parameters of the interface, such as setting parameters of the motor rotation pulse number in a circle, how many mm motor rotates a circle of the actual object forward, start-up speed, deceleration speed setting, add and subtract speed parameter setting. And then through the set of data, in the main program programming, direct call real motion control function block, the function block only need to fill out the need to go the distance, movement speed, to the state directly show the current position, rather than the number of input pulses, pulse frequency and other parameters. This function is similar to Siemens 200 CPU, smart, of course, the idea can be applied to PID control. A little humble opinion said wrong place more than forgive me.

technology zone of sea for N60S2T series PLC application in the production line for green building design for N type PLC, for the precision of the leadscrew working long hours and repetitive design validation yaskawa a1000 inverter connect line? Yaskawa inverter wiring diagram to sea for the British witten PLC application in the grinding machine production line design of elevator control system design
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