Protection parameter group 06
PARAMETER DESCRIPTION 186
120%
06-01
(P.22)
Level
Time
deceleration time
according to 06-
04(P.220)
acceleration time
according to 06-
04(P.220)
Current
Output
frequency
Current in the figure refers to current amplitude
Note: 1. If set 00-21(P.300) to 3 sensorless vector control, 06-01(P.22) will act as torque limit level operation.
2. When 06-04(P.220)=2, if 01-22(P.44) is not set, acceleration time will be 01-06(P.7); If 01-23(P.45) is not set,
deceleration time will be 01-07(P.8).
5.7.3 Regenerative brake
When performing frequent start and stop operation, regenerative brake usage rate can be increased by using the
brake resistor or the brake unit.
Parameter
Name
Default Setting Range
Content
06-05
P.30
Regenerative brake
selection
0
0
Brake duty is fixed at 3%, parameter 06-06(P.70) will be off.
1
Brake duty is 06-06(P.70) value.
2
2
Connect to brake unit(D frame and above)
06-06
P.70
Special regenerative
brake duty
0.0%
0~100.0%
---
Regenerative brake
During the period when output frequency of inverter changes from high frequency to low frequency, due to load
inertia, the rotating speed of the motor is higher than the output frequency of inverter at an instant, thus forming the
generator effect. This will cause regenerative voltage between main circuit terminals (+/P)-(-/N), which may result
in damage to inverter. Therefore, a regenerative braking resistor with an appropriate size is installed between main
circuit ter/P and PR to absorb the feedback energy.
There is a transistor in inverter and the proportion of conduction time is called “regenerative braking rate”. The
greater the value of regenerative braking rate, the more energy regenerative braking resistor consumes and the
stronger the braking capability.
Note: 1. If inverter is used in high-frequency start/stop case, it need a high-power regenerative braking resistor.
2. Please refer to section 3.6.3 for choosing regenerative braking resistor.
Setting
Содержание SA3 Series
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