Acceleration/deceleration time
<S-curve acceleration/deceleration (weak): when the frequency change is 10% or more of the
maximum frequency>
Acceleration or deceleration time (s) = (2 x 5/100 + 90/100+ 2 x 5/100) x (reference
acceleration or deceleration time)
= 1.1 x (reference acceleration or deceleration time)
<S-curve acceleration/deceleration (strong): when the frequency change is 20% or more of
the maximum frequency>
Acceleration or deceleration time (s) = (2 x 10/100 + 80/100 + 2 x 10/100) x (reference
acceleration or deceleration time)
= 1.2 x (reference acceleration or deceleration time)
H11 Deceleration Mode
H11 specifies the deceleration mode to be applied when a run command is turned OFF.
Data for H11 Function
0 Normal deceleration
The inverter decelerates and stops the motor according to deceleration
commands specified by H07 (Acceleration/deceleration pattern), F08
(Deceleration time 1), and E11 (Deceleration time 2).
1 Coast-to-stop
The inverter immediately shuts down its output, so the motor stops
according to the inertia of the motor and machine and their kinetic
energy losses.
When reducing the reference frequency, the inverter decelerates the motor
according to the deceleration commands even if H11 = 1 (Coast-to-stop).
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