Rockwell Automation 1305 AC Drive, Series C, Firmware 6.xx and Up User Manual
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