STEP ET Series - Page 96

Chapter 7 Parameter Explanation
Shanghai Sigriner STEP Electric Co., Ltd.
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P11.03 and P11.04. After the DC injection time, the running starts from the starting frequency
P11.01 and accelerates to the set frequency after the holding time P11.02.
时间 s
频率 Hz
P11.02
P11.01
正转
正反转死区
P11.01
P11.02
反转
0
直流制动
P11.03
P11.04
Frequency Hz
Forward
rotation
DC braking
Dead band in
forward and reverse
Time
Reverse
rotation
Figure 7-6: Diagram of Starting after DC Braking
2: Speed tracking starting
The inverter recognizes velocity of the rotating motor and directly tracks the starting based on the
recognized frequency, and the current and voltage are smooth and shock-free during the starting
process.
电源
电机转速
0
反方向切换
变频器运转方向
变频器输出频率
反向
检测电机速度和方向
Power supply
Motor speed
Inverter output frequency
Inverter rotating direction
Reverse direction
switching
Reverse
Detecting motor speed and
direction
Figure 7-7 Diagram of Speed Tracking Starting Mode
Function code
Name
Setting range
Factory setting
P11.01
Starting holding frequency (Hz)
0.00~50.00
0.00
P11.02
Starting frequency holding time
(s)
0.00~3600.00
0.00
Starting frequency refers to the initial frequency at which the inverter starts, as f
s
shown in the figure;
starting frequency holding time t
s
refers to the time that the inverter maintains running at the starting
frequency during the starting process, as shown in the figure, the frequency instruction is lower than
the starting hold frequency and the inverter is not running.