Danfoss VLT AutomationDrive FC 300 Programming Manual page 58

FC 300 Programming Guide
[4] Horizontal operation
[5] VVC+/Flux clockwise
[6] Hoist Mech. Brake Rel
[7] VVC+/Flux counter-cw
1-73 Flying Start
Option:
[0] * Disabled
[1] Enabled
[2] Enabled Always
This parameter cannot be adjusted while motor is running.
NB!
This function is not recommended for hoisting applications.
For power levels above 55kW, flux mode must be used to achieve the best performance.
1-74 Start Speed [RPM]
Range:
Application [0 - 600 RPM]
dependent*
1-75 Start Speed [Hz]
Range:
Application [Application dependant]
dependent*
Connect the function described in par. 1-74
start delay time.
Regardless of the value applied by the reference signal, the output speed applies the setting of the
start speed in par. 1-74 Start Speed [RPM]
corresponds to the setting of the start current in par. 1-76
used in hoisting applications without counterweight and especially in applications with a Cone-mo-
tor, where the start is clockwise, followed by rotation in the reference direction.
Only possible with VVC+.
For obtaining the function described in par. 1-74
during the start delay time. The motor rotates in the reference direction. If the reference signal
Start Speed [RPM]
equals zero (0), par. 1-74
output current corresponds to the setting of the start current in par. 1-76
for the function described in par. 1-74
tomatically. This function uses the start speed in the start delay time only. Regardless of the value
set by the reference signal, the output speed equals the setting of the start speed in par. 1-74
Speed [RPM] . Start speed/current clockwise
hoisting applications. Start speed/current in reference direction
tions with counterweight and horizontal movement.
For utilizing mechanical brake control functions, par. 2-24
tor
. This parameter is only active when par. 1-01
feedback (FC 302 only)
.
Function:
This function makes it possible to catch a motor which is spinning freely due to a mains drop-out.
No function
Enables the frequency converter to "catch" and control a spinning motor.
Flying Start
When par. 1-73 is enabled, par. 1-71
function.
Function:
Set a motor start speed. After the start signal, the output speed leaps to set value. Set the start
Start Function
function in par. 1-72
Delay
.
Function:
This par can be used for hoist applications (cone rotor). Set a motor start speed. After the start
signal, the output speed leaps to set value. Set the start function in par. 1-72
[4] or [5], and set a start delay time in par. 1-71
®
MG.33.M8.02 - VLT is a registered Danfoss trademark
3 Parameter descriptions
Start Speed [RPM]
and par. 1-76
or par. 1-75 Start Speed [Hz]
Start Current
Start Speed [RPM] and par. 1-76
is ignored and the output speed equals zero (0). The
Start Speed [RPM]
only. The start current is calculated au-
plus
[3] and VVC /Flux clockwise
[4] is particularly used in applica-
Stop Delay
to par. 2-28
Motor Control Principle
is set to [3]
Start Delay
and par. 1-72
to [3], [4] or [5], and set a start delay time in par. 1-71
Start Delay
.
Start Current
in the
and the output current
. This function is typically
3
Start Current
Start Current
.
Start
[5] are typically used in
Gain Boost Fac-
Flux w/ motor
Start Function
have no
Start
Start Function
to [3],
57