Powtran PI9100 Series Manual page 124

Output
frequency Hz
Initial
frequency of
stop DC
braking
Effective
value of output
voltage
Stop DC
braking amount
Running command
Dynamic braking
F3.12
utilization rate
Effective only for the inverter with built-in braking unit.
Due to the duty cycle of braking unit is adjusted, if the braking use rate is high, the duty
cycle of braking unit is high, the braking effect is stronger, but the inverter's bus voltage
fluctuation is larger during the braking process .
F3.13
Ac/deceleration mode
Select the frequency change mode in the process of start/stop.
0: Linear acceleration and deceleration
The output frequency increases or decreases linearly. PI9000 provides four kinds of
acceleration and deceleration time. You can select by the multi-function digital input
terminals (F1.00 to F1.08).
1: S curve acceleration and deceleration A
The output frequency increases or decreases at the S curve. S-curve is used for the
Schematic diagram of stop DC braking time
0% to 100%
Linear acceleration and
deceleration
S curve acceleration
and deceleration A
S curve acceleration
and deceleration B
119
Chapter 5 Function parameter
Time t
Waiting time of stop DC braking(t1)
Time
t
Stop DC braking time(t2)
100%
0
1
2
☆
★
0