Rockwell Automation Liqui-Flo AC GP Vector Drive Version 6.4 - Manual (Page 111)

Programming Reference 4-29
A function loss or a fault will always cause a coast-to-rest stop.
If the drive is configured as a torque regulator (U.000 > 0 and TRQ/SPD digital input =
TRQ), then the stop type will always be coast-to-rest regardless of the value in
parameter P.025.
P.025 Stop Type (continued)
If RUN is selected:
If P.025 = 0, pressing the STOP/RESET key or giving an external stop command will
cause the motor to coast to rest.
If P.025 = 1, pressing the STOP/RESET key or giving an external stop command will
cause the motor to ramp to rest within a time equal to or greater than the preset
deceleration time (P.002/P.018).
If JOG is selected:
When the START input from the selected control source is released (unasserted), the
motor will ramp down in speed regardless of the value in P.025.
Pressing the STOP/RESET key or giving an external stop command while JOG is
selected will stop the motor differently depending on whether the drive is configured
for V/Hz or vector regulation:
For V/Hz regulation, the motor will always perform a ramp stop regardless of the value
in P.025.
For vector regulation, the motor will stop based on the value of P.025:
• If P.025 = 0, pressing the STOP/RESET key or giving an external stop command will
cause the motor to coast to rest.
P.025 Stop Type
This parameter
selects how the
motor will stop when
a stop command is
given. Parameter Range: 0 = Coast-to-rest stop
1 = Ramp stop
Default Setting: 0
Parameter Type: Tunable
Refer also to parameters: P.002 Decel Time 1
P.018 Decel Time 2
P.022 Jog Ramp Decel Time
U.000 Torque Reference Source
!
ATTENTION: The user must provide an external, hardwired emergency
stop circuit outside the drive circuitry. This circuit must disable the system
in case of improper operation. Uncontrolled machine operation may
result if this procedure is not followed. Failure to observe this precaution
could result in bodily injury.