Delta CP2000 Series User Manual

Chapter 12 Description of Parameter SettingsCP2000
12.1-07-1
07 Special Parameters
 This parameter can be set during operation.

Software Brake Level
Default:
380.0/740.0/895.0/1057.0
Settings 230V series: 350.0–450.0 V
DC
460V series: 700.0–900.0 V
DC
575V series: 850.0–1116.0 V
DC
690V series: 939.0–1318.0 V
DC
 Sets the brake transistor level for the DC bus voltage. Choose a suitable brake resistor to
achieve the best deceleration. Refer to Section 7 Optional Accessories for information about
brake resistors.
 This parameter is only valid for the models below 22 kW of 230V series and 30 kW of 460V
series.

DC Brake Current Level
Default: 0
Settings 0–100%
 Sets the level of the DC brake current output to the motor during start-up and stop. When you
set the DC brake current percentage, the rated current is regarded as 100%. Start with a low DC
brake current level, and increase it slowly until the proper brake torque is reached. However, to
avoid burning the motor, the DC brake current can NOT exceed the rated current. Do NOT use
the DC brake for mechanical retention, otherwise, injury or accident may occur.
 The PM has the magnetic field itself, using the DC brake may possibly cause the motor run in a
reverse direction, therefore, it is not recommended to use DC brake for PM.

DC Brake Time at RUN
Default: 0.0
Settings 0.0–60.0 sec.
 The motor may continue rotating after the drive stops output due to external forces or the inertia
of the motor itself. If you use the drive with the motor rotating, it may cause motor damage or
trigger drive protection due to over-current. This parameter outputs DC current, generating
torque to force the motor to stop to get a stable start before more operation. This parameter
determines the duration of the DC brake current output to the motor when the drive start up.
Setting this parameter to 0.0 disables the DC brake at start-up.
 The PM has the magnetic field itself, using the DC brake may possibly cause the motor run in a
reverse direction, therefore, it is not recommended to use DC brake for PM. Use Pr.10-49 zero
voltage command to force the motor decelerate or to stop.

DC Brake Time at STOP
Default: 0.0
Settings 0.0–60.0 sec.

Delta CP2000 Series Specifications

General

Brand	Delta
Model	CP2000 Series
Category	DC Drives
Language	English