Technical information

Table Of Contents

5 – PARAMETER DESCRIPTIONS

P18 Decel Time CFN 17

LCD Display

CFN: Decel Time

17 15 sec

Range 1 – 180 seconds (Default 15 sec)

Description The Decel Time parameter sets the time that the deceleration profile is applied to the motor and sets

the slope of the deceleration ramp profile. When in voltage decel mode, this time sets the time

between applying the initial decel level to the application of the final decel level.

Note: If the motor is not up to speed when a stop is commanded, the voltage decel profile begins at

the lower of either the decel begin level setting or at the motor voltage level when the stop is

commanded. Although the profile may be adjusted, the deceleration time remains the same.

When in the TruTorque deceleration mode, the decel time sets the time between when a stop is

commanded and when the decel end torque level is applied.

If the motor stops rotating before the decel time expires, decrease the decel time parameter. If the

motor is still rotating when the decel time expires, increase the decel time parameter.

A typical decel time is 20 to 40 seconds.

Note: Depending on the motor load and the decel parameter settings, the motor may or may not be

fully stopped at the end of the deceleration time.

Refer to section 8.4, Deceleration Control page 127,