TECHTOP TD350 - Start;Stop Control

TD350 Series VFD Basic operation instructions
-80-
Function
code
Name
Detailed parameter description
Default
value
P12.19
Rated current of
synchronous motor 2
0.8–6000.0A
Depend
on model
P12.20
Stator resistance of
synchronous motor 2
0.001–65.535Ω
Depend
on model
P12.21
Direct-axis inductance of
synchronous motor 2
0.01–655.35mH
Depend
on model
P12.22
Quadrature-axis inductance
of synchronous motor 2
0.01–655.35mH
Depend
on model
P12.23
Counter-emf constant of
synchronous motor 2
0–10000
300
5.5.7 Start/stop control
The start/stop control of the VFD is divided into three states: start after running command at power-up;
start after restart-at-power-cut function is effective; start after automatic fault reset. Descriptions for
these three start/stop control states are presented below.
There are three start modes for the VFD, which are start at starting frequency, start after DC brake,
and start after speed-tracking. Users can select the proper start mode based on field conditions.
For large-inertia load, especially in cases where reversal may occur, users can choose to start after
DC brake or start after speed-racking.
Note: It is recommended to drive synchronous motors in direct start mode.