Programming
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
Page
D-165
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A
B
C
D
E
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7
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.
