The controller gain is determined by activating test signals (Autotuning). The calculations and the relevant autotuning are carried out in the drive controller. The advanced settings are made in parameters P 1530 SCD_SetMotorControl, P 1531 SCD_Action_Sel and P 1533 SCD_AT_Bandwidth.
Parameters
| P no. | Parameter name | Function |
|---|---|---|
| P1530 | SCD_SetMotorControl | Torque controller setting with defined bandwidth |
| (-1) | Fault(-1) | Error during calculation |
| (0) | Ready(0) | Ready |
| (3) | BANDWIDTH(3) | Calculation of the torque controller parameters based on the motor data and the specified bandwidth |
| (4) | DEADBEAT(4) | This setting parameterizes a dead-beat controller. The structure is switched to feedback with observer, the observer is designed (to a specific equivalent time constant – for setting see P 0434(0) CON_CCON_ObsPara – and the speed controller gains are calculated accordingly. |
| P1531 | SCD_Action_Sel | Start conditions to determine the torque controller settings |
| (-1) | FAULT (-1) | Function set in P 1530 SCD_SetMotorControl stops with an error message |
| (0) | READY(0) | Ready |
| (6) | BANDWIDTH(6) | Optimization of torque controller gain with band-pass: TuneCCon Activation of sinusoidal test signals and adaptation of the current controller parameters based on the specified bandwidth |
| P1533 | SCD_AT_Bandwidth | Bandwidth preset for torque control loop: Setting range: 10 - 4000 Hz |
Tabelle: Definition of bandwidth
Copyright © LTi DRiVES GmbH, Januar 2013, ID-Nr.: 0842.26B.1-00 DE