Allen-Bradley 1305 Series - Page 77

Programming
5-9
Setup Group (continued)
[Accel Time 1]
Parameter # 7 Factory Default 10.0 Sec
[Accel
Time
1]
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
[Decel Time 1]
Parameter # 8 Factory Default 10.0 Sec
[Decel
Time
1]
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
'a
Decel
Time
a '
Speed
Time
0
0
Figure 5.1 Accel/Decel Time
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