Danfoss VLT AutomationDrive FC 360 Programming Manual page 73

Programming Guide | VLT® AutomationDrive FC 360
Option
[3]
[4]
[5]
[6]
1-73 Flying Start
Default value:
[0] Disabled
Setup:
All setups
Data type:
Uint8
Catch a motor which is spinning freely due to a mains dropout.
To obtain the best flying start performance, the advanced motor data, parameter 1-30 Stator Resistance (Rs) to parameter 1-35
Main Reactance (Xh), must be correct.
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Name
Start speed cw
Horizontal operation
VVC+ clockwise
Hoist Mech. Brake Rel
Parameter type:
Conversion index:
Change during operation:
NOTICE
Description
Only possible with VVC+. Regardless of
the value applied by the reference signal,
the output speed applies the setting
of the start speed in parameter 1-75
Start Speed [Hz] and the output current
corresponds to the setting of the start
current in parameter 1-76 Start Current.
This function is typically used in hoisting
applications without counterweight
and especially in applications with a
Cone motor, where the start is clockwise,
followed by rotation in the reference
direction.
Only possible with VVC+. For obtaining
the function described in parameter
1-75 Start Speed [Hz] and parameter
1-76 Start Current during the start delay
time. The motor rotates in the reference
direction. If the reference signal equals
zero (0), parameter 1-75 Start Speed [Hz] is
ignored, and the output speed equals zero
(0). The output current corresponds to the
setting of the start current in parameter
1-76 Start Current.
The start speed is calculated
automatically. This function uses the start
speed in the start delay time only.
For Hoist function, select this option
during start delay.
Option
–
True
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