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MILL DRIVE CONTROLLER
Can be used in machines having three DC motors such as Strip/Foil/Wire/Rod rolling mills, Strip/Foil Slitting Machines,Paper Mills etc
1. The FPGA contains :
| i) |
IP10 |
Floating Point CPU |
| ii) |
IP17 (x3) |
3ÆSCR Converter Controller |
| iii) |
IP4 |
Serial Port for gain adjustment and program changes, from PC |
| iv) |
IP18 (x3) |
Uni-directional Shaft Encoder Interface Logic |
| v) |
IP12 |
A to D Converter Interface Logic (16 channels) |
| vi) |
IP21 (x3) |
LCD VGA Display Controlle |
| vii) |
PARALLEL PORT |
For high Speed parallel link with I/O controller for exchange of graphic and control data |
2. The Firmware, for controlling the three DC motors, of the mill contains
- Digital speed computation of 3 DC Motors
- Six PID control routines for field and armature control
- Three PI filters for field current feedback
- Three PI filters for armature current feedback
- Three PI filters for armature voltage feedback
- Scan rate - 360 micro seconds
- Compensation - For Draft, Inertia, Friction
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