Chapter 4 Parameters
4-122
Group 7 Special Parameters
07-00 Software Brake Level Unit: 0.1
Control
mode
VF VFPG SVC FOCPG TQCPG
Settings 230V series 350.0~450.0Vdc Factory Setting: 380.0
460V series 700.0~900.0Vdc Factory Setting: 760.0
This parameter sets the DC-bus voltage at which the brake chopper is activated.
07-01 DC Brake Current Level Unit: 1
Control
mode
VF VFPG SVC FOCPG TQCPG
Factory Setting: 0
Settings 0 to 100%
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 (Pr.00-01) 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/TQCPG mode, DC brake is zero-speed operation. It can enable DC
brake function by setting to any value.
07-02 DC Brake Time at Start-up Unit: 0.1
Control
mode
VF VFPG SVC FOCPG TQCPG
Factory Setting: 0.0
Settings 0.0 to 60.0 sec
This parameter determines the duration of the DC Brake current after a RUN command.
When the time has elapsed, the AC motor drive will start accelerating from the Minimum
Frequency (Pr.01-05).
07-03 DC Brake Time at Stop Unit: 0.01
Control
mode
VF VFPG SVC FOCPG TQCPG
Factory Setting: 0.00
Settings 0.00 to 60.00 sec
This parameter determines the duration of the DC Brake current during stopping.
07-04 Start-Point for DC Brake Unit: 0.01
Control
mode
VF VFPG SVC TQCPG
Factory Setting: 0.00
Settings 0.00 to 600.00Hz
This parameter determines the frequency when DC Brake will begin during deceleration.
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