Hitachi S1 Series Basic Manual page 103

S1 series standard inverter
Function
Name
code
Time of starting
section of
P01.06
acceleration S
curve
Time of ending
section of
P01.07
acceleration S
curve
P01.08 Stop mode
Starting
P01.09 frequency of DC
brake after stop
Waiting time of
P01.10 DC brake after
stop
P01.11 DC brake current
Detailed parameter description
decreases in S curve;
S curve is generally used in cases where smooth
start/stop is required, eg, elevator, conveyer belt,
etc.
Output frequency f
fmax
t1
Note: When set to 1, it is required to set
P01.06, P01.07, P01.27 and P01.28
accordingly.
The curvature of S curve is determined by
acceleration range and acceleration and
deceleration time.
Output frequency f
t1 t2
Setting range: 0.0–50.0s
0: Decelerate to stop; after stop command is valid,
the inverter lowers output frequency based on the
deceleration mode and the defined deceleration
time, after the frequency drops to the stop speed
(P01.15), the inverter stops.
1: Coast to stop; after stop command is valid, the
inverter stops output immediately, and the load
coasts to stop as per mechanical inertia.
Starting frequency of DC brake after stop; during
decelerating to stop, when this frequency is
reached, DC brake will be performed after stop.
Demagnetization time (waiting time of DC brake
after stop): Before the DC brake, the inverter will
block output, and after the demagnetization time
elapses, DC brake will start. This function is used
-98-
Time t
t2
t1=P01.06
t2=P01.07
t3=P01.27
Time t t4=P01.28
t3 t4
Default
Modify
value
◎
0.1s
◎
0.1s
○
0
○
0.00Hz
○
0.00s
○
0.0%