Rockwell-automation 150 MNL/SMC DIALOG+/APP-PROD GUIDE Manual do Utilizador descarregar pdf (Página 40)

SMC Dialog Plus Smart Motor Controller

3-3

Current Limit Start

This starting method provides a fixed reduced voltage start and is

used when it is necessary to limit the maximum starting current. Th

starting current is user adjustable from 50 to 600% of full load

amperes. The current limit starting time is user adjustable from 0 to

30 seconds.

Figure 3.3 Current Limit Start

Dual Ramp Start

This starting method is useful on applications with varying loads and

varying starting torque requirements. Dual Ramp Start offers the user

the ability to select between two separate Soft Start profiles with

separately adjustable ramp times and initial torque settings.

Figure 3.4 Dual Ramp Start

Start

600%

50%

Percent

Full Load

Current

Time (seconds)

Percent

Voltage

Initial

Torque #1

100

Start #1 Run #1

Ramp #2

Ramp #1

Start #2

Time (seconds)

Run #2

Initial

Torque #2

1 2 ... 35 36 37 38 39 40 41 42 43 44 45 ... 201 202

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Rockwell-automation 150 MNL/SMC DIALOG+/APP-PROD GUIDE Manual do Utilizador Página 40