Rockwell Automation 1305 AC Drive, Series C, Firmware 6.xx and Up - Manual (Page 90)

Programming 5-22
Advanced Setup Group (continued)
[Stop Select] Parameter # 10 Factory Default ‘‘Ramp” [Stop Select]
Parameter Type Read & Write
This parameter selects the stopping mode when the drive Units Text Settings ‘‘Coast” Causes the Drive to Turn Off Immediately This parameter selects the stopping mode when the drive
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 Hold Time] Parameter # 12 Factory Default 0.0 Sec [DC Hold Time]
Parameter Type Read & Write Minimum 0.0 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 0.1 Seconds Maximum 150 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