Programming
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D-98
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D
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OVER SPEED TRIP
SETUP::TRIPS::OVER SPEED TRIP
Designed for SENSORLESS VEC and CLOSED-LOOP VEC Motor Control Modes.
The over speed trip operates by looking at speed feedback and comparing it against THRESHOLD.
If the feedback exceeds this threshold for a period greater than DELAY, then a trip is triggered. The trip is only active while
the drive is operating in Closed-Loop or Sensorless Vector Control.
Parameter Descriptions
INHIBIT
PREF: 123.01 Default: FALSE Range: FALSE / TRUE
Set this parameter to TRUE to disable the over speed trip.
THRESHOLD
PREF: 123.02 Default: 150.00 % Range: 0.00 to 300.00 %
Sets a threshold below which the trip will not operate. The value of THRESHOLD is compared to the value of SPEED
FEEDBACK (from the SPEED LOOP function block).
DELAY
PREF: 123.03 Default: 0.10 % Range: 0.00 to 10.00 s
Sets the time the trip must be present for before a trip is triggered.
TRIPPED
PREF: 123.04 Default: FALSE Range: FALSE / TRUE
This is a diagnostic output indicating the current state of the over speed trip.
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