VLT ® 2900 Series All about VLT 2900 MG.29.A3.02 - VLT ® is a registered Danfoss trademark 89 PNU # Parameter description Factory setting 4-setup Conv. index Data type 400 Brake function Depends on unit type No 0 5 405 Reset function Manual reset Yes 0 5 406 Aut. restart time 5 sec. Yes 0 5 409 Trip delay overcurrent Off (61 sec.) Yes 0 5 411 Switching frequency 4.5 kHz Yes 0 6 412 Var. carrier frequency No LC-filter Yes 0 5 413 Overmodulation function On Yes 0 5 414 Min. feedback 0.000 Yes -3 4 415 Max. feedback 1500.000 Yes -3 4 416 Process units No unit Yes 0 5 417 Speed PID propor.ampl. 0.010 Yes -3 6 418 Speed PID intergra.
100 ms Yes -5 7 419 Speed PID differentiation time 20.00 ms Yes -5 7 420 Speed PID diff. amplification 5.0 Yes -1 6 limit 421 Speed PID lowpass filter 20 ms Yes -3 6 423 U1 voltage par. 103 Yes -1 6 424 F1 frequency Par. 104 Yes -1 6 425 U2 voltage par. 103 Yes -1 6 426 F2 frequency par. 104 Yes -1 6 427 U3 voltage par. 103 Yes -1 6 428 F3 frequency par. 104 Yes -1 6 437 Proc. PID no/inv. Normal Yes 0 5 438 Proc. PID anti wind. Active Yes 0 5 439 Proc. PID start frequency Par. 201 Yes -1 6 440 Proc. PID start 0.01 Yes -2 6 proportional ampl. 441 Proc. PID integration time Off (9999.99 s) Yes -2 7 442 Proc. PID differentiation time Off (0.00 s). Yes -2 6 443 Proc. PID diff. ampl.
limit 5.0 Yes -1 6 444 Proc. PID lowpass filter time 0.02 s Yes -2 6 445 Flying start Not possible Yes 0 5 451 Speed PID feedforward factor 100% Yes 0 6 452 Controller range 10 % Yes -1 6 456 Brake voltage reduce 0 Yes 0 5 461 Feedback conversion Linear Yes 0 5