BENSHAW RediStart EXEXMVRMX3 Series, User Manual

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Squared
– The squared profile increases the control reference (voltage, current, torque, power, speed) in a
squared manner. A squared acceleration profile can be useful when using TruTorque control on a load with a
squared torque characteristic (such as pumps, and fans). A squared torque profile can provide a more linear
speed profile during acceleration and deceleration.
S–Curve – The S-curve profile slowly increases the control reference’s rate of change at the beginning of the
ramp profile and an slowly decreases the rate of change of the reference at the end of the ramp profile. This
profile can be useful when using closed loop tach control to smooth the starting and ending of the acceleration
profile. It can also be useful with other types of control methods that require extra smooth starts.
See Also
Start Mode (CFN 01) on page 63.
Kick Level 1 CFN 11
LCD Display
Range Off, 100 – 800% of FLA (Default: Off)
Description
The Kick Level 1 parameter sets the current level that precedes any ramp when a start is first commanded.
The kick current is only useful on motor loads that are hard to get rotating but then are much easier to move
once they are rotating. An example of a load that is hard to get rotating is a ball mill. The ball mill requires a
high torque to get it to rotate the first quarter turn (90°). Once the ball mill is past 90°of rotation, the material
inside begins tumbling and it is easier to turn.
The kick level is usually set to a low value and then the kick time is adjusted to get the motor rotating. If the
kick time is set to more than 2.0 seconds without the motor rotating, increase the kick current by 100% and
re-adjust the kick time.
See Also
Start Mode on (CFN 01) on page 63.
Kick Time 1 on (CFN 12) on page 68.
Theory of Operation section 7.3.2, Programming A Kick Current on page 124.
68
6 - PARAMETER DESCRIPTION
Squared
S-Curve
CFN: Kick Lvl 1
11
Off