Brake Drop Delay, 136; Drive Disable Delay, 138; Speed Hysteresis Delay, 139; Profile Advance, 140 - Motion Control Engineering Motion 4000 Manual

User Interface

Brake Drop Delay, 136

from dropping after the speed command is dropped. The goal is to avoid dropping the brake
until the motor has just stopped moving. The default time of 250 milliseconds is a good starting
point.
Figure 4.5 Effect of Brake Drop Delay on Stopping
Speed
Not enough Drop Delay

Drive Disable Delay, 138

drive should maintain electrical control of the motor. May be used to compensate for a slow
dropping brake. The default time of 1250 milliseconds should be appropriate for virtually all
scenarios.

Speed Hysteresis Delay, 139

issued and when it begins to accelerate the load.

Profile Advance, 140

130 mS are common.
Profile Scale, 141
to slow all speeds associated with a curve without having to change individual speed settings.
Useful for overspeed tests with the understanding that drive LF.22 will absolutely limit car
speed.

Standard Slew Slope, 142

speed transitions to zero speed. Sets the maximum deceleration rate that the S curve is allowed
to command when the car is stopping from a speed near releveling speed or lower. If the stop is
harsh, reducing this value may provide a softer stop.

Danger Slew Slope, 143

can transition to a lower or higher speed. Sets the maximum rate of acceleration/deceleration
the S curve is allowed to command when the car is running and when the car is stopping from a
speed greater than releveling speed. Reducing this value forces a more gradual transition.

Slew Filter, 144

other than Inspection. Reducing this value causes a smoother transition.
4-134 Manual # 42-02-2P24
The delay, in milliseconds, that the brake should be delayed
Drop Delay
just right
Too much Drop Delay
The time in milliseconds after stopping at a floor which the
Provides a delay between when the speed command is
Compensates for lag in the control loop. Values from 50 mS to
Scales the curve to affect all associated speed settings. Typically used
Determines how aggressively or gradually the current
Determines how aggressively or gradually the current speed
Smooths any harsh transitions in the commanded speed for modes
Level at Floor