Parameter Description | Issue 01/06 |
3.29.2.3Speed controller pre-control
P1496[3] | Scaling accel. precontrol |
| Min: | 0.0 | ||
| CStat: | CUT | Datatype: Float | Unit: % | Def: | 0.0 |
| CONTROL | Active: Immediately | QuickComm.: No | Max: | 400.0 |
Enters scaling of acceleration in [%].
Level
3
The response of setpoint changes for the speed control loop can be improved using the precontrol function (P1496). Precontrol is derived from the differential frequency setpoint multiplied by the mass inertia P0341; P0342 is then supplied as a torque setpoint to the current controller. If the filter (VC: P1442, SLVC: P1452) is applied in the correct manner, the derived speed controller is only required to control a small deviation in the value of the corrected variable. Setpoint changes are then passed by the speed controller and are quickly executed.
r1490
P1492 P1489 P1488
150 ms
P0341 P0342
Droop
r1518
r1538
r1170 | – |
Freq. setpoint
r0063
Act. frequency
P1496 | =0 |
| PI | r1538 | r1538 |
|
|
|
| Speed |
| ||
|
|
| r1539 |
|
| |
| >0 | – | controller |
| Torque | |
|
|
|
|
| ||
|
|
|
|
|
| |
|
|
|
| r1539 | r1539 | setpoint |
|
|
|
| r1508 |
| r0079 |
Index:
|
| P1496[0] | : 1st. Drive data set (DDS) |
|
|
|
| |
|
| P1496[1] | : 2nd. Drive data set (DDS) |
|
|
|
| |
|
| P1496[2] | : 3rd. Drive data set (DDS) |
|
|
|
| |
| Note: | P1496 = 0: |
|
|
|
|
| |
|
|
|
|
|
|
| ||
|
| Precontrol disabled |
|
|
|
|
| |
|
| P1496 > 0: |
|
|
|
|
| |
|
| Precontrol enabled |
|
|
|
|
| |
|
| P1496 = 100: |
|
|
|
|
| |
|
| Standard setting for precontrol |
|
|
|
|
| |
P1499[3] | Scaling accel. torque control |
| Min: | 0.0 | Level | |||
|
| CStat: | CUT | Datatype: Float | Unit: % | Def: | 100.0 | 3 |
|
|
| ||||||
|
| CONTROL | Active: Immediately | QuickComm.: No | Max: | 400.0 |
|
Enters scaling of acceleration in [%] for sensorless torque control (SLVC) at low frequencies.
Index:
P1499[0] : 1st. Drive data set (DDS)
P1499[1] : 2nd. Drive data set (DDS)
P1499[2] : 3rd. Drive data set (DDS)
172 | MICROMASTER 440 Parameter List |