Parker AC890PX Series, Engineering Reference

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A p p e n d i x D : P r o g r a m m i n g
D-155
AC890PX AC Drive
STALL TRIP
SETUP::TRIPS::STALL TRIP
The function block protects the motor from damage that may be caused by continuous operation beyond specification (i.e. in a stalled condition).
Parameter Descriptions
STALL TIME
PREF: 105.01 Default: 120.0 s Range: 0.1 to 3000.0 s
The time after which a stall condition will cause a trip.
STALL LIMIT TYPE PREF: 105.03 Default: 0 Range: See below
This parameter determines whether the stall trip operates on motor torque or motor current.
Enumerated Value : Stall Limit Type
0 : TORQUE
1 : CURRENT
Functional Description
If STALL LIMIT TYPE is set to TORQUE and the estimated load exceeds the active TORQUE LIMIT (refer to the TORQUE LIMIT function
block) for a time greater than STALL TIME then the stall trip will become active. The timer is reset whenever the estimated load is less than the
active Torque Limit.
Similarly, if the STALL LIMIT TYPE is set to CURRENT and the measured current exceeds the active Current limit (i.e. the drive is in current
limit) for a time greater than STALL TIME then the stall trip will become active. The timer is reset whenever the measured current is less than the
active Current Limit.
Refer to Chapter 10 for a description of the trips supported by the Drive.