Allen-Bradley 2-D Instrukcja Użytkownika Pobierz pdf (Strona 78)

Programming

5-9

Setup Group (continued)

[

Acc

]

Parameter # 7 Factory Default 10.0 Sec

[

Acc

]

Parameter Type Read & Write Minimum 0.0 Sec

This parameter is the factory default parameter for

determining the time it will take the drive to ramp from 0 Hz

to [Maximum Frequency]. The rate is linear unless

[S Curve] is ‘‘Enabled.” It applies to any increase in

command frequency. The [Accel Time 2] parameter can

be selected in place of this parameter. (See Chart on Page

5-30).

Units 0.1 Second Maximum 3600.0 Sec

[

]

Parameter # 8 Factory Default 10.0 Sec

[

]

Parameter Type Read & Write Minimum 0.0 Sec

This parameter is the factory default parameter for

determining the time it will take the drive to ramp from

[Maximum Frequency] to 0 Hz. The rate is linear unless

[S Curve] is ‘‘Enabled” or [Stop Select] is set to

‘‘S-Curve.” It applies to any decrease in command

frequency. The [Decel Time 2] parameter can be selected

in place of this parameter. (See Chart on Page 5-30).

Units 0.1 Second Maximum 3600.0 Sec

Max. Frequency

Accel

Time

Decel

Time

a '

Speed

Time

Figure 5.1 Accel/Decel Time

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 171 172

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Allen-Bradley 2-D Instrukcja Użytkownika Strona 78