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position closed loop

Homing and Positioning with C2000 with S7 1500 / 1200 via Profibus-DP

Positioning is one of the main applications of drive technologies and motion control and  the necessity of positioning in industrial applications is quite wide and there are many applications where positioning could be applied. Some of these applications are a process machine valve, a conveyor, the thread of a ball-screw, a lifter, a drilling machine pattern or a driving cart through an assembly line. Precise positioning (tenths of millimeters for CNC for example) takes into account many other factors and are driven by Servo-controllers like the Delta ASD family servo-drives. However, the  C2000 can be used for a variety of positioning functions with all robustness of a power drive for non-precise application where millimeters or less are not a problem. In this application we are going to learn how to set a drive system with C2000 for positioning, and how to transfer a position command using Profibus-DP from a S7-Siemens PLC with  TIA PORTAL.

You can also download the C2000 fine tuning for this application:

super_tuned_for_pos

You can also download the S7-1500 fw 1.8 program:

DELTA_COMM_S71500_VIDEO_pos

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Successful Application: Metal bar feeder

Another successful application, and this time comes from the company Thelen Tech from Finland.

This company engineer is a big an of Delta and our step and direction solutions, and for this simple but effective solution they use 750W ASDA-B2 drive for the motion together with DVP28SV2 for the control.
And to monitor or configure speed, they add DOPB04 HMI.

Check the machine!
20130424_113924

Originally this was planned as full automatic system, plan was there is gripper
which would push material to cutting length, then saw it, then push more… and
whole it should be fast (over 30m/min speed)

20130424_113907

The cutting length can be adjusted using manually using hand-wheel, or automatic using HMI.
There is also possibility for closed loop feed back, but in these case feedback is taken from D1336 register

20130424_114203

Also +/-10V speed command is possible, motion control just calculates difference between real and wanted position and turns it PWM (or voltage).
This pretty nice arrangement for relative (like MPG) and absolute positioning using at the same time.

ParamOffset and accuracy Adjustment Screen

Diagnostics
Diagnostics Screen, very useful for the designer.

Openscreen
Monitoring screen

Thank you very much Thelen Tech to share this new machine with us!
Keep impressing us like that!

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