Delta VFD-L-I Series, Руководство пользователя

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Chapter 4 Parameters
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VFD-L-I Series
Revision July 2009, SW V1.1 4-45
Group 8: Special Parameters
08-00 DC Braking Current Level Unit: 1%
Settings 0 to 30% Factory Setting: 0
This parameter determines the level of DC Braking Voltage Level output to the motor during
start-up and stopping. When setting DC Braking Voltage, the rated current of the AC motor
drive is regarded as 100%. It is recommended to start with a low DC Braking Voltage Level
and then increase until proper holding torque has been attained. It can’t exceed the rated
current of the motor.
08-01 DC Braking Time during Start-up Unit: 0.1
Settings 0.0 to 60.0 sec Factory Setting: 0.0
This parameter determines the duration of time that the DC Braking Current will be applied to
the motor during the AC drive start-up.
08-02 DC Braking Time during Stopping Unit: 0.1
Settings 0.0 to 60.0 sec Factory Setting: 0.0
This parameter determines the duration of time that the DC braking voltage will be applied to
the motor during stopping. If stopping with DC Braking is desired, then Pr.02-02 must be set
to RAMP stop (00).
08-03 Start-Point for DC Braking Unit: 0.1
Settings 0.0 to 400Hz Factory Setting: 0.0
This parameter determines the frequency when DC Braking will begin during deceleration.
When this setting is less than min. frequency (Pr.01-05), the start-point for DC braking will
start with the min. frequency.
O N
O FF
Pr. 08-01
Pr.08-00
Pr. 08-02
Pr. 08-03
O pe ra tio n
Co mman d
0 1- 05
O pe ra tio n
Fr eq ue ncy
Mi ni mum O utp ut
Fr eq ue ncy
S tar t-P oi nt fo r
DC B ra kin g
Time du ri ng
S top pi ng
Time