K&R GT600-4T132G, User Manual

Page: 139 / 362

6. Description of Parameters
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F6-00 = 1: Catching a Spinning Motor
To catch a spinning motor, the AC drive detects speed and direction of spinning motor,
and then starts to run from the spinning motor frequency.
In this start mode, ensure that motor parameters in group F1 are set correctly.
Figure 6-31 Catching a spinning motor
Frequency
F6-00 = 1: catching
a spinning motor
Motor speed
Automatic motor
speed tracking
Time
RUN command
F6-21
(Demagnetization
time)
Accelerate
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F6-00 = 2: Pre-excited Start
Motor speed
tracking time
It is valid only for asynchronous motor and used for building magnetic field before motor
running. For pre-excited current and pre-excited time, see and .
– If pre-excited time is 0, the AC drive cancels pre-excitation and starts to run from start
frequency.
– If pre-excited time is not 0, the AC drive pre-excites first and then starts to run,
improving motor dynamic response.
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F6-00 = 3: SVC quick start
It is applicable only for asynchronous motor in SVC mode, which can shorten acceleration
time. It is used when system inertia is large and quick start is required. But torque impact
exists in this mode.
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