Does an Engineered Drive have specific communication connection arrangements for AC800M
Does an Engineered Drive (ACS800 - DCS800) have specific communication connection arrangements standards for AC800M.
i.e. do specific bits, bytes & words get used as standard control bits, status bits and reference and feedback structures ?
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In case Engineered Drive communicates through DriveBus or ModuleBus, data transfer is arranged in datasets. Each dataset contains 3 values. Particular dataset has its predefined transmittion cycle (2ms, 4ms, 10ms, 100ms).
Datasets are freely configurable by drive parameters - any drive parameter can be connected to the particular dataset. In AC800M datasets are connected to the global variables. Configuration of Datasets depends on application specific needs.
See example of values exchanged between ACS800 and AC800M for application of a roll at metal processing line.
At side of AC800M values received from drive and values sent to drive are processed in so-called Drive standards. Drive standard may contain about 60 pages of logic, which works as gateway between Speed reference generator and physical drive.
Typical tasks of Drive standard are:
- drive ON/OFF, Run/Stop commands
- drive brake opening control
- speed reference rescaling from m/min to RPM
- friction and inertia compensation
- load sharing
- tension control in case of Pay-Off-Reel, Tension Reel or Bridles
- Diameter calculation in case of Pay-Off-Reel, Tension Reel
- Positioning by means of encoder pulses counting
I hope it helps you.