Shihlin electric SL3 Series, User Manual

Page: 142 / 211

Application parameter group 10
PARAMETER DESCRIPTION 138
5.10.1 DC injection brake

When stopping the motor, apply DC voltage on motor to stop motor shaft from rotating, users can adjust the motor
stop time and braking torque.
Parameter Name Default Setting Range Content
10-00
P.10
DC brake operating
frequency
3.00Hz 0～120.00Hz ---
10-01
P.11
DC brake operating time 0.5s 0～60.0s ---
10-02
P.12
DC brake operating
voltage
4.0% 0～30.0%
DC brake

After sending stop signal (please refer to chapter 4 for basic operation of starting and stopping the motor), output
frequency of inverter will gradually decrease. When the output frequency decreases to “DC brake operation
frequency (10-00(P.10))
”, DC brake will start to operate.

During DC braking, inverter will inject DC voltage into the motor coil to lock the motor rotor. This voltage is called
“DC brake operating voltage (10-02(P.12))
”. The larger the 10-02(P.12) value, the greater the DC braking voltage,
and the better the braking ability. However, the braking current will not exceed inverter rated current.

Operation of DC braking will maintain a period of time（10-01(P.11) value) to overcome the inertia from motor
rotation.

See figure below:
10-02
（
P.12
）
Time
10-01
（
P.11
）
O
ut
pu
t f
re
qu
en
cy
（
H
z
）
10-00
（
P.10
）
DC
brake
voltage
Stop signal
given
Time
Note: 1. User must set appropriate values to get the best control characteristic.
2. If any one of 10-00(P.10), 10-01(P.11),10-02(P.12) is set to “0”, DC brake will not operate, when send stop
signal, motor may still rotate due to inertia.
Setting