LiteOn EVO 6800 Series, Руководство пользователя, Страница: 79 / 261

79
Use b2-00 to set the start frequency for Zero Speed Holding at stop. When the output
frequency falls below the b2-00 level, the drive perform Zero Speed Holding for the
durating set in b2-03 (DC Braking Time at Stop)
d1-08 Min. Output Frequency
b2-00 Zero Speed Holding Start Level
Output
frequency
Time
DC
Braking
b2-03
DC Braking Time at Stop
Figure 6.14 Zero Speed Holding at Stop
Note: When Zero Speed Holding Start Frequency (b2-00) is lower than Minimum Output Frequency (d1-08),
Zero Speed Holding starts at Minimum Output Frequency (d1-08).

b2-01 DC Braking Current
Sets the DC braking current as a percentage of the drive rated current. When the current is set
to more than 30%, the carrier frequency is automatically decreased to 1kHz.
No. Name Setting Range Default
b2-01 DC Braking Current 0 to 100% 30%
The DC Braking current level affects the magnetic field strength to hold the motor shaft. The
higher the current level is set, the higher amount of heat will be generated by the motor.
Therefore do not set this value higher than the level necessary to hold the motor shaft.

b2- 02 DC Braking Time at Start
Sets the DC braking time at start to stop a coasting motor before restarting it or to apply
braking torque at start when a high starting torque is needed. Disabled when set to 0.00.
No. Name Setting Range Default
b2-02 DC Braking Time at Start 0.00 to 99.99 s 0.00 s
Note: Attempting to run a coasting motor without using DC Braking or Speed Search may trigger oV (Overvoltage)
or oC (Overcurrent) fault. Use DC Braking to stop the motor or use Speed Search to detect the motor speed before
restarting it

b2- 03 DC Braking Time at Stop
Sets the DC braking time at stop to stop a motor rotating with high inertia. Disabled when set
to 0.00.
No. Name Setting Range Default
b2-03 DC Braking Time at Stop 0.00 to 99.99 s Determined by A1-02
b3 Speed Search