LiteOn EVO600021SD75E20F - Page 55

55
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
0.5 s
b3 Speed Search
The Speed Search function is to detect the actual motor speed driven by the inertia and
starting the motor operation from the current speed directly without a stop. When a
momentary power loss shuts off the drive and causes motor to coast. Speed Search helps the
drive to detect the speed of the coasting motor and restart directly.
The Speed Search method of the drive is current detection type. Follow the settings and
instructions below.
 b3- 00 Speed Search Setting
No.
Name
Setting Range
Default
b3-00
Speed Search Setting
0 to 2
0
0 : Disabled
1 : Enabled and searched from the highest frequency
2 : Enabled and searched from the frequency command
 b3- 01 Speed Search Operating Current
Sets the current level as a percentage of the drive rated current below which Speed Search is
deactivated. This parameter normally does not require any change. Lower this current level if
the drive cannot restart the motor.
No.
Name
Setting Range
Default
b3-01
Speed Search Operating Current
0 to 100%
60%