STEP ET Series - Page 97

Chapter 7 Parameter Explanation
ET/EP/EH Series Intelligent Flexible Driver Manual
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频率 Hz
fs
P11.02
P11.01
0
ts
时间 s
fmax
Frequency Hz
Time
Figure 7-8 Diagram of Starting Frequency and Starting Time
The inverter starts running from the starting frequency P11.01, and accelerates according to the set
acceleration time after the starting frequency holding time P11.02.
Note: For heavy load starting, a proper starting frequency holding time should be set for better
starting.
Function code
Name
Setting range
Factory setting
P11.03
Starting DC injection current (%)
0.0~120.0
30.0
P11.04
Starting DC injection time (s)
0.0~100.0
5.0
P11.03 and P11.04 are only valid when "Start after DC Braking (P11.00=1)” is selected as starting
running mode", as shown in the following figure.
The setting of starting DC braking current (P11.03) is relative to the percentage of inverter rated
current. If the set DC braking current is greater than 120% motor rated current, the injected current is
120% motor rated current. Under heavy load: 0.0 - 120.0%; under light load: 0.0 - 90.0%.
The starting DC braking time (P11.04) is the action time of injection. When P11.04 = 0, there is no
DC braking process.
时间
输出频率
0
时间
输出电压
0
运行命令
P11.03
P11.04
Output
frequency
Output voltage
Running
command
Time
Time
Figure 7-9 Diagram of DC braking
Function code
Name
Setting range
Factory setting
P11.05
Excitation time (s)
0.0~10.0
2.0
Excitation time is the time required to establish magnetic flow before starting the motor, for the