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6 - PARAMETER DESCRIPTION
P18 Decel Time CFN 17
LED Display LCD Display
Range 1 – 180 seconds (Default 15)
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 final decel level.
z 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.
z 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.
See Also Stop Mode (P15 / CFN 14) parameter on page 87.
Decel Begin Level (P16 / CFN 15) parameter on page 88.
Decel End Level (P17 / CFN 16) parameter on page 89.
Controlled Fault Stop Enable (P43 / PFN 12) parameter on page 105.
Theory of Operation section 7.4, Deceleration Control on page 149.
CFN: Decel Time
17 15 sec
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