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Chapter 6 Parameter Description
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6.4 Startup/stop Parameter (Group P3)
Different startup modes can be adopted for different applications.
0: The inverter begins to run from the startup frequency P3.03 and accelerates to the setting frequency
after the startup frequency retention time P3.04. If the motor is still rotating upon the startup of the
inverter, the motor will be automatically decelerated to low speed before the acceleration.
1: DC current is injected first to perform DC magnetizing and DC braking on the motor. The volume and
time for the DC injection are set by P3.01 and P3.02. After the DC injection time expires, the inverter
begins to run from the startup frequency P3.03 and accelerates to the setting frequency after the startup
frequency retention time P3.04.
2: Flying startup.
The inverter will automatically identify the speed of the motor and directly start from the identified
frequency. The current and voltage are smooth without any impact during the startup.
Note: During the DC current supply, the operation panel displays “-dc-”.
P3.01 sets the volume of the DC injection current, which is indicated in a percentage of the rated current
of the inverter. Upon variable torque load: 0.0
~
90.0
%.
P3.02 sets the action time of the DC injection.
The inverter begins to run from the startup frequency P3.03 and accelerates according to acceleration
time after the startup frequency retention time P3.04.
Note: For the heavy-load startup applications, it will facilitate the startup if the startup frequency and
retention time are properly set.
Different stop modes can be adopted for different applications.
0: Decelerate to stop according to the deceleration time.
1: The inverter locks the output and the motor coast to stop.
2: Decelerate to stop according to the deceleration time. When the frequency is lower than the DC
braking initial frequency P3.06, inject the DC braking current P3.07, and the DC braking time is
determined by P3.08.
Note: During the DC braking, the operation panel displays “-dc-”.
P3.00
Startup mode
0~2(0)
P3.01
DC injection current
0.0~120.0 %(0.0%)
P3.02
DC injection time
0.00~30.00 s (0.00s)
P3.03
Startup frequency
0.00~60.00Hz(0.00or 0.50Hz)
P3.04
Startup frequency retention time
0.0~3600.0 s
(
0.0s
)
P3.05
Stop mode
0~2(0)
P3.06
DC braking initial frequency
0.00~300.00 Hz(0.00Hz)
P3.07
DC braking current
0.0~120.0 %(0.0%)