Rockwell-automation 1305 AC Drive, Firmware 1.01-3.00 User Manual Manual de usuario Pagina 89

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Chapter 5 –Programming
5-21
Advanced Set Up Group (cont.)
[S
t
op
Sele
ct]
Parameter # 10 Factory Default ‘‘Ramp”
[S
t
op
Sele
ct]
Parameter Type Read & Write
This parameter selects the stopping mode when the drive
re eves v d s p d
Units None Settings ‘‘Coast”
Causes the Drive to Turn Off Immediately
Th
i
s
p
a
r
am
e
t
er
se
l
e
ct
s
t
he
s
to
pp
in
g
mo
de
w
he
n t
he
dr
i
ve
receives a valid stop command.
‘‘Ramp” Drive Decelerates to 0 Hz, Then Turns Off – Requires
a Value In [Decel Time 1] or [Decel Time 2]
‘‘DC Brake”
Injects DC Braking Voltage Into the Motor – Requires a
Value in Both [Decel Hold Time] & [Decel Hold
Level].
‘‘S-Curve”
Drive ramps to stop using a fixed ‘‘S-Curve” profile.
Stop time is twice the selected decel time.
[
DC H
old
T
im
e
]
Parameter # 12 Factory Default 0 Sec
[
DC H
old
T
im
e
]
Parameter Type Read & Write Minimum 0 Sec
This value sets the amount of time that the [DC Hold
Level] voltage will be applied to the motor when the stop
mode is set to either ‘‘DC Brake” or ‘‘Ramp.” When in
‘‘Coast ” mode and the drive is stopped and restarted
within the [DC Hold Time] setting, the speed will resume
at the output frequency prior to the stop command.
Units 1 Second Maximum 15 Sec
[DC Hold Time]
Figure 5.13 Ramp
Figure 5.14 DC Brake
Volts and Speed
y
Voltage
y
Stop Command
Stop Command
[DC Hold Time]
[DC Hold Level]
[DC Hold Level]
Time
Time
Speed
Speed
Voltage
Volts and Speed
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