Chapter 5 Parameters|VFD-M-D Series
5-66 Revision Jan. 2007, MDE2, SW V1.05
Group 7: Protection and Special Parameters
7 - 00
Software Braking Level
(the Action Level of the Braking Resistor)
Unit: 1
Settings 230V series: 370 to 430V Factory Setting: 380
This parameter sets the DC-bus voltage at which the brake chopper is activated.
7 - 01 DC Braking Current Level Unit: 1
Settings 0.0 to 100.0% Factory Setting: 0.0
This parameter sets the level of DC Braking Current output to the motor during start-up and
stopping. When setting DC Braking Current, the Rated Current (Pr.0-01) is regarded as 100%.
It is recommended to start with a low DC Braking Current Level and then increase until proper
holding torque has been attained.
7 - 02 DC Braking Time during Start-up Unit: 0.1
Settings 0.0 to 999.9 sec Factory Setting: 0.0
This parameter determines the duration of the DC Braking current after a RUN command.
When the time has elapsed, the AC motor drive will start accelerating from the Minimum
Frequency (Pr.1-05).
7 - 03 DC Braking Time during Stopping Unit: 0.1
Settings 0.0 to 999.9 sec Factory Setting: 0.0
This parameter determines the duration of the DC Braking current during stopping. If stopping
with DC Braking is desired, Pr.0-13 Stop Method must be set to 00 for RAMP stop.
When Pr.7-03 is set to 999.9, it will be permanent DC braking. There are two methods used to
stop it.
1. It needs to force stopping by setting multi-inputs (MI1~MI5) to 9 or 10.
2. Pressing
RESET
STOP
key and holding for 2 seconds.
7 - 04 Start-Point for DC Braking Unit: 0.01
Settings 0.00 to 400.0Hz Factory Setting: 0.00
This parameter determines the frequency when DC Braking will begin during deceleration.
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