Parameter Description VD120 Series Inverter User Manual
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72
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Start the dc braking, generally used to make the running motor restart after stop. Pre excitation is
used to make the asynchronous motor build magnetic field first then restart, improve the response
speed.
Start the dc braking is only valid for starting mode is direct startup. The inverter dc braking will
according to the first startup dc braking current setting, start running again after start the dc braking
time. If set dc braking time is 0, then directly start without dc braking. The greater the dc braking
current, the bigger the braking force.
If the starting mode is asynchronous motor pre-excitation start, the inverter according to the first set of
pre excitation current build magnetic field beforehand, start running again after the pre excitation time
setting. If set pre excitation time is 0, then directly start without dc braking.
Start dc braking current/pre excitation current, is relative to the percentage of the frequency inverter
rated current.
F1-05
Speed Tracking Mode
0: Starting from the stop frequency
1: Starting from zero speed
2: Starting from the maximum frequency
0
◎
In order to complete the speed tracking process, selection the mode of inverter track motor speed
through this function code:
0: Tracking down from the frequency of the power failure, usually selection this way.
1: Starting from zero frequency tracking up, in the case of power failure for a long time to start to use.
2: Tracking down from the maximum frequency, the use of general power load.
F1-06
Speed Tracking Speed
1~100
20
○
When the speed tracking is started, the speed of speed tracking is selected.
The bigger the parameter, the faster the speed tracking. But too large can cause speed tracking effect
is reliable
F1-07
Speed Tracking Current
100%~150%
125%
◎
The size of the current speed tracking search.
F1-08
Stop Mode
0: Decelerate to stop
1: Coast to stop
0
○
0: decelerate to stop
After stop command effective, inverter reduced the output frequency according to deceleration time,
frequency downtime after drop to zero.
1: Coast to stop
After stop command effective, inverter stop output immediately, the motor coast to stop according to
the mechanical inertia.
F1-09
Initial Frequency of Stop
DC Braking
0.00Hz~max frequency
0.00Hz
○
F1-10
Waiting Time of Stop DC
Braking
0.0s~100.0s
0.0s
○
F1-11
Stop DC Braking Current 0%~100%
0%
○
F1-03
Starting DC Braking
Current/ Pre-excitation
Current
0%~100%
0%
◎
F1-04
Starting DC Braking Time
/ Pre-excitation Time
0.0s~100.0s
0.0s
◎
Summary of Contents for VD120 Series
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