Lenze DSD Bedienungsanleitung PDF herunterladen (Seite 427)

Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23 427

17 Restrictions of the drive dimensioning

17.2 Worldwide mains voltages and supply forms

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

17.2 Worldwide mains voltages and supply forms

The DSD contains mains voltages and supply forms existing worldwide. Depending on the selection

that has been made, the DSD automatically assigns the available solution space of inverters.

See also: Mains and environment ( 277)

17.3 Undervoltages: Impact on operational performance

The effects of undervoltages (e. g. "3 AC, 400 V" - 10 %) on the available device output voltages and

thus on the motor M-n characteristics is not yet automatically included by the DSD.

17.4 Highly dynamic applications with acceleration times < 50 ms

The rise time of the drive system (results of the reference input variable) is increasingly noticeable

with regard to extremely short accelerations and is taken into consideration.

The rise time depends on the type of inverter that is used, on the motor, and on the control process.

Often simulations of the process are required to check the feasibility of such applications, or data or

experience is available.

• The DSD checks all relevant physical parameters, irrespective of the shortness of the accelera-

tion time.

• The rise time of the inverters used are not checked by the DSD.

• Additionally, the response times of field buses and master controls are to be regarded.

17.5 Feedback systems

Selection criteria like for example accuracy, resolutions, limit frequencies, max. permissible speeds,

are not taken into consideration by the DSD.

 Note!

For inverters which are operated on mains with "3 AC, 415 V" < U

mains_rated

≤ "3 AC,

500 V" (e. g. Canada, Taiwan, or operating networks with special voltages):

The dimensioning can also be carried out with the setting "3 AC, 400 V", "3 AC, 415 V" or

"3 AC, 480 V" in the DSD. However, if the voltage deviates, the application must be

checked manually with reduced current values of the inverter in the end!

 Note!

Only relevant for highly dynamic applications with acceleration times < 50 ms, e. g. Mo-

tion Control applications for which highly dynamic motion profiles with a low following

error have to be traversed!

See also: Minimum acceleration and deceleration times

( 263)

1 2 ... 422 423 424 425 426 427 428 429 430 431 432 ... 495 496

Keine Kommentare

Lenze DSD Bedienungsanleitung Seite 427