Delta C2000 Series User Manual page 382

07 Special Parameters
Software Brake Level
Settings
This parameter sets the DC-bus voltage at which the brake chopper is activated. Users can choose
the suitable brake resistor to have the best deceleration. Refer to Chapter 7 Accessories for the
information of the brake resistor.
It is only valid for the models below 30kW of 460 series and 22kW of 230 series.
DC Brake Current Level
Settings
This parameter sets the level of DC Brake Current output to the motor during start-up and stopping.
When setting DC Brake Current, the Rated Current is regarded as 100%. It is recommended to
start with a low DC Brake Current Level and then increase until proper holding torque has been
attained.
When it is in FOCPG control mode, DC brake is zero-speed operation. It can enable DC brake
function by setting to any value. The drive will output an appropriate current to meet the actual
need.
DC Brake Time at RUN
Settings
The motor may be in the rotation status due to external force or itself inertia. If the drive is used with
the motor at this moment, it may cause motor damage or drive protection due to over current. This
parameter can be used to output DC current before motor operation to stop the motor and get a
stable start. This parameter determines the duration of the DC Brake current after a RUN command.
When it is set to 0.0, it is invalid.
DC Brake Time at Stop
Settings
The motor may be in the rotation status after drive stop outputting due to external force or itself
inertia and can't stop accurately. This parameter can output DC current to force the motor drive
stop after drive stops to make sure that the motor is stop.
This parameter determines the duration of the DC Brake current during stopping. To DC brake at
stop, this function will be valid when Pr.00-22 is set to 0 or 2. When setting to 0.0, it is invalid.
Related parameters: Pr.00-22 Stop Method, Pr.07-04 Start-point for DC Brake
230V series: 350.0~450.0Vdc
460V series: 700.0~900.0Vdc
0~100%
0.0~60.0 sec
0.0~60.0 sec
12-07-1
Chapter 12 Description of Parameter Settings C2000 Series
This parameter can be set during operation.
Factory Setting: 380.0/760.0
Factory Setting: 0
Factory Setting: 0.0
Factory Setting: 0.0