Danfoss VLT AutomationDrive FC 300 Design Manual page 148

FC 300 Design Guide
Function:
This function makes it possible to catch
spinning motor which is spinning freely
because of a mains drop-out.
Select Disable if this function is not required.
Select Enable if the frequency converter is to be
able to 'catch' and control a spinning motor.
When par. 1-73 is enabled par. 1-71 and
1-72 have no function.
Flying start is active in VVC+ mode only.
NOTE
It is recommended not to use this function
in hoisting applications.
1-74 Start Speed [RPM]
Range:
0 - 600 RPM
Function:
Sets the desired motor start speed.
The motor output speed "leaps" to the set value. This
parameter can be used e.g. for hoist applications
(cone armature motors). Set the start function in
par. 1-72 to [3], [4] or [5], and set a start delay time
in par. 1-71. A reference signal must be present.
1-75 Start Speed [Hz]
Range:
0 - 500 Hz
Function:
Sets a start speed.
After the start signal, the output speed adjusts
to the set value. This parameter can be used
e.g. for hoist applications (cone rotor motors).
Set the start function in par. 1-72 to [3], [4] or
[5], and set a start delay time in par. 1-71. A
reference signal must be present.
1-76 Start Current
Range:
0.00 - par. 16-36 A
Function:
Some motors, such as cone rotor motors, need extra
current/starting speed (boost) to disengage the
mechanical brake. For this purpose use par. 1-74
and par. 1-76. Set the required value to disengage
the mechanical brake. Set the start function in par.
default setting ( ) display text
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148
How to Program
1-72 to [3] or [4], and set a start delay time in par.
1-71. A reference signal must be present.
1-8* Stop Adjustments
"
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Selects the drive function after a stop command
or after the speed is ramped down to the
settings in par. 1-81.
Select Coasting [0] to leave the motor in free
mode. Activate DC hold [1] DC holding current
(par. 2-00). Select Motor check [2] to check
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if a motor has been connected.
0RPM
Select Pre-magnetizing [3] to build up a magnetic
field while the motor is stopped. The motor can
now produce a quick torque build-up at start.
Sets the speed at which to activate Function
at stop (par. 1-80).
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0Hz
Set the frequency at which the function to activate
function at stop is selected in par. 1-80.
1-9* Motor Temperature
"
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0.00A
[ ] value for use in communication via serial communication port
MG.33.B3.22 - VLT is a registered Danfoss trademark
1-80 Function at Stop
Option:
Coast
DC hold
Motor check
Pre-magnetizing
Function:
1-81 Min Speed for Function at Stop [RPM]
Range:
0 - 300 RPM
Function:
1-82 Min Speed for Function at Stop [Hz]
Range:
0.0 - 500 Hz
Function:
1-90 Motor Thermal Protection
Option:
No protection
Thermistor warning
Thermistor trip
ETR warning 1
ETR trip 1
ETR warning 2
ETR trip 2
ETR warning 3
[0]
[1]
[2]
[3]
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0RPM
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0.0Hz
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]