Senlan Hope800 Series Manual page 71

Setting
0.0~60.0s
reange
The inverter has the following stop modes:
F1-25=0: The inverter decelerates until its operating frequency drops to F1-26 and then enters the standby
state.
F1-25=1: The inverter blocks the output and the motor coasts to a stop. But for jog stop or emergency
stop, the stop mode remains to be slowdown stop (F1-25=0). Coast stop is not recommended for a water pump,
for the water pump has a short stop time ant its sudden stop may result in water hammer.
F1-25=2: The inverter slows down and blocks the output when its operating frequency drops to F1-26.
After a period of time(F1-27), the inverter applies the DC current(F1-29) to the motor, which stops following
another period of time(F1-28)(refer to page 60). The DC braking state can be remained by the digital input
34(refer to page 71).
Caution: DC braking mode is only recommended for low speed(less than 10Hz) operation or small motors.
Caution: Long-time or frequent DC braking is easy to cause motor overheating, for the load mechanical
energy is consumed in the motor rotor.
F1-25=3: The inverter slows down until its operating frequency drops to F1-26, then after a period of
time (F1-28) the inverter enters the standby state. The digital input 6 can be used to control the electromagnetic
holding brake, as shown in the diagram below.
F1-30:
In the slowdown stop mode(F1-25=0), when the frequency drops to F1-26, the motor
continues decelerating to zero within the time period(F1-30) and keeps running at the zero
frequency(refer to the following diagram). The motor remains excited so that it can start quickly at
any time without pre-excitation. F1-30 is invalid when its value is set to zero.
Operating frequency
Starting frequency
Braking signal
No matter what the command source is (except the communication control), pressing
double-clicking
F1-31
Setting
0: Linear
range
F1-32
F1-33
F1-34
F1-35
Setting
0.01~10.00s
range
In S-curve accel/decel mode, the acceleration and speed change gradually and smoothly, which is helpful
DC braking frequency(at
stop)
F1-28
Holding brake delay
can cause the inverter to coast to a stop, provided the keypad is unlocked.
Accel/decel mode
S-curve accel start-stage time
S-curve accel end-stage time
S-curve decel start-stage time
S-curve decel end-stage time
Frequency
Operating
frequency
Time
Stop
frequency
Operating
Time
state
Default
1: S-curve
Default
Default
Default
Default
6 Parameter Description
Decel time
Zero-speed
delay time
Zero-speed delay
0 Change
0.20s Change
0.20s Change
0.20s Change
0.20s Change
Time
Time
and
×
×
×
×
×
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