Parker AC890PX Series, Engineering Reference

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D-122
A p p e n d i x D : P r o g r a m m i n g
AC890PX AC Drive
REFERENCE STOP
SETUP::SEQ & REF::REFERENCE STOP
This function block holds all the parameters concerning the stopping method of the Drive.
The stopping methods of the Drive are described in more detail in Chapter 6: “Operating the Drive” - Starting and Stopping Methods.
Parameter Descriptions
RUN STOP MODE PREF: 102.01 Default: 0 Range: See below
Selects stopping mode that the controller will use once the run command has been removed. The choices are:
Enumerated Value : Stopping Mode
0 : RUN RAMP
1 : COAST
2 : DC INJECTION (only Volts/Hz control mode)
3 : STOP RAMP
When RUN RAMP is selected the Drive will decelerate using the reference ramp deceleration time, provided it is non zero. When COAST is
selected the motor will free-wheel. When DC INJECTION is selected the motor is stopped by applying dc current. When STOP RAMP is selected
the motor will decelerate in STOP TIME.
STOP TIME PREF: 102.02 Default: 10.0 s Range: 0.0 to 600.0 s
Rate at which the demand is ramped to zero after the ramp has been quenched.
STOP ZERO SPEED PREF: 102.03 Default: 0.10 % Range: 0.00 to 100.00 %
Threshold for zero speed detection used by stop sequences.
STOP DELAY PREF: 102.04 Default: 0.500 s Range: 0.000 to 30.000 s
Sets the time at which the Drive holds zero speed before quenching after a normal stop or a jog stop. This may be particularly useful if a mechanical
brake requires time to operate at zero speed, or for jogging a machine to position.