Delta VFD-EL-W Series User Manual

Chapter 4 Parameters｜VFD-EL-W
115
08 Special Parameters
 You can set this parameter during operation.
08.00
DC Brake Current Level
Default: 0
Settings
0–100%
 Sets the level of the DC brake current output to the motor at start-up and stop. When setting the
DC brake current, the rated current is 100%. Therefore, when you set this parameter, increase
the level slowly to reach the desired holding torque. The set value cannot exceed the motor
rated current.
08.01
DC Brake Time at Start-up
Default: 0.0
Settings
0.0–60.0 sec.
 This parameter determines the duration of the DC brake current output to the motor when the
drive starts up.
08.02
DC Brake Time at STOP
Default: 0.0
Settings
0.0–60.0 sec.
 This parameter determines the duration of the DC Brake current output to the motor when
braking. To enable the DC brake at STOP, you must set Pr.02.02 (Stop Method) to 0 or 2 (ramp
to stop).
08.03
DC Brake Frequency at STOP
Default: 0.00
Settings
0.00–400.00 Hz
 Determines the start frequency of the DC brake before the drive ramps to stop. When this setting
is less than Pr.01.05 (Start-up Frequency), the start frequency for the DC brake begins at the
minimum frequency.
 Use the DC brake before running the motor when the load is movable at stop, such as with fans
and pumps. The motor is in free running status and in unknown rotation direction before the
drive starts up. Execute the DC brake before you start the motor.
 Use the DC Brake at STOP when you need to brake the motor quickly or to control the
positioning. Such as cranes or cutting machines.

Delta VFD-EL-W Series Specifications

General

Brand	Delta
Model	VFD-EL-W Series
Category	DC Drives
Language	English