Shihlin electric SL3 Series, User Manual

Page: 143 / 211

Application parameter group 10
PARAMETER DESCRIPTION 139
5.10.2 Zero-speed control

Zero-speed function selection
Parameter Name Default Setting Range Content
10-03
P.151 Zero-speed control
function selection
0
0 Off.
1 DC voltage braking
10-04
P.152 Voltage at zero-speed
control
5.0% 0～30.0%
Zero-speed control

Make sure to set 01-11(P.13) (start frequency) to zero when using this function.
Note: 1. If set 10-04(P. 152) to 6%, output voltage of zero speed is 6% of 01-04(P. 19) (base frequency voltage).
5.10.3 DC injection brake before start

Before operation, motor may be in rotating state due to external force or inertia. If inverter suddenly start operation,
the output current may be too large, causing motor damage or trigger driver protection.
Parameter Name Default Setting Range Content
10-05
P.242 DC brake before
inverter start
0
0 Off
1 Before starting operate DC brake first.
10-06
P.243 DC brake time before
inverter start
0.5s 0～60.0s ---
10-07
P.244 DC brake voltage
before inverter start
4.0% 0～30.0%
DC injection brake before start

If 10-05(P. 242)=0, DC brake function before start will be off. If 10-05(P. 242)=1, DC brake before start is on, when
inverter start, it will inject DC voltage (with 10-07(P. 244) value) into the motor coil to lock the rotor. DC brake will
maintain for a period of time (10-06(P. 243) value) before motor starts to run.
See figure below:
Output
frequency
DC
brake
voltage
Time
Time
01-11
（
P.13
）
10-07
（
P.244
）
10-06
（
P.243
）
10-06
（
P.243
）
Setting
Setting