In Guangdong Province, a printing and packaging customer originally planned to use the pulse servo plan, but there were problems of low power, complex wiring, and difficult upgrading and transformation, and the requirements were:
1) Replace the original pulse plan with an EtherCAT bus plan.
2) Increase the power and hope to target 120 meters per minute.
3) Adjust the process timing through the human-computer interaction method of the touch screen.
4) The servo axis speed is synchronized with the relevant feeding spindle speed.
Therefore, the folding line plan of AX71 motion controller + DA200EtherCAT bus servo driver + GD350 inverter + VS070HS touch screen launched by INVT has applied the function of electronic gears, and realized high-speed folding and tail folding and flipping through multi-axis composite synchronization function.
Plan Features:
1) Robust Composite Synchronous Control:
In the splicing process, the front lift and the encoder shaft are synchronized;
In the folding tail process, the rear lift and the front lift are synchronized;
In the handover process, the switch is made from the front lift and the encoder shaft to the receiver table and the encoder shaft.
2) The timing of the process can be corrected by the "number of trigger pieces", and the on-site requirements of the habit and practice can be customized.
3) The speed of the process and the speed of the related spindle can be corrected by the "number of process pieces".
4) High-performance bus motion controller AX71:
Excellent communication load capacity, supporting up to 16-axis bus communication and large-scale long-distance I/O expansion.
A variety of peripheral communication interfaces, supporting ModbusTCP, ModbusRTU and CANopen communication protocols.
Refined motion control capabilities support advanced motion control functions such as electronic cams, electronic gears and interpolation.
Rich professional process function, integrated shearing, flying shear, tension control, temperature PID and other process libraries.
Program Benefits:
1. Efficiency:
The maximum processing power is 120 meters per minute, or 14 pieces per minute, which can be increased by up to 40% compared with the original plan.
2 products:
The EtherCAT bus servo drive DA200 is simple to wiring and has an attractive electrical cabinet layout.
The program uses "DA200" for identification, which is convenient for changing models and does not need to frequently correct the program.
The programming channel is Codesys, and the programming language is abundant, which is convenient to realize the control requirements and upgrade transformation.
3. Craft:
Streamlined process parameters for on-site commissioning.
The passive encoder servo is used to improve stability and accuracy. Independent encoders often have many inconveniences, such as complex wiring, poor anti-interference ability, and inability to directly participate in multi-axis linkage.
4 costs:
The front frame, nose and rear frame can not only communicate and interact with split control, but also integrate control, which is useful for handling costs.
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