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Programming Your Application
690+ Series Frequency Inverter
SPD FBK TRIP
Designed for CLOSED-LOOP VEC Motor
Control Mode.
The
speed feed back trip operates by looking
at speed error and comparing it against
THRESHOLD.
If the error 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 Vector Control and not in
Autotune. When using the drive in torque control, this trip should be disabled to prevent
nuisance tripping by setting INHIBIT to TRUE.
Torque control is defined as operating in torque or current limit, or if the TORQ DMD
ISOLATE parameter in the SPEED LOOP function block is TRUE.
MMI Menu Map
1
SETUP
2
TRIPS
3
SPD FBK TRIP
INHIBIT
THRESHOLD
DELAY
TRIPPED
Spd Fbk Trip
–
TRIPPED [1650]
–
FALSE
FALSE
–
[1648] INHIBIT
–
50.00 %
–
[1649] THRESHOLD
–
10.00 s
–
[1647] DELAY
–
Parameter Descriptions
INHIBIT
Range: FALSE / TRUE
Set this parameter to TRUE to disable the speed feedback trip.
THRESHOLD
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 ERROR (from the SPEED LOOP function block).
DELAY
Range: 0.00 to 300.00 s
Sets the time the trip must be present for before a trip is triggered.
TRIPPED
Range: FALSE / TRUE
This is a diagnostic output indicating the current state of the speed feedback trip.