Mains Voltage At Mains Fault; Inductance Lc-Filter; Lc-Filter Connected; Aeo Cos Phi - Danfoss VLT 5000 FLUX Operating Instructions Manual

Description of choice:
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.

450 Mains voltage at mains fault

(MAINS FAIL VOLT.)
Value:
180-240 V for 200-240 V units
342-500 V for 380-500 V units
Function:
Set the voltage level at which parameter 407 Mains
fault is to be activated. The voltage level for activating
the mains fault functions must be lower than the rated
mains voltage supplied to the frequency converter.
As a rule of thumb, parameter 450 can be set to
10% below the rated mains voltage.
Description of choice:
Set the level for activating mains fault functions.
NB!:
If this value is set at too high a level, the mains
fault function set in parameter 407 can be
activated, even if the mains voltage is present.

458 LC-Filter connected

(LC-FILTER ON)
Value:
On (ON)
Off (OFF)
Function:
Enables LC-filter compensation in the control system.
Voltage drop by the LC-filter is not compensated.
Description of choice:
Enable or disable compensation for LC-filter
on VLT output.
459 Capacity LC-Filter
(CAP. LC-FILTER)
Value:
0.1-100 µF
Function:
Compensation function of the LC-filter requires the
per phase equivalent star connected capacitance of
the filter (3 times the capacity between two phases
when capacitance is 'Delta' connection).
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.55.A6.02 - VLT is a registered Danfoss trademark
Description of choice:
Sets the LC-filter capacitance value.

460 Inductance LC-Filter

(INDUCT. LC-FILTER)
Value:
0.1-100 mH
Function:
180
Compensation function of the LC-filter requires the
342
per phase inductance of the filter.
Description of choice:
Sets the LC-filter inductance value.
462 Saturation brake
(SATURATION BRAKE)
Value:
000 (OFF) - 100 %
Function:
Is selected to improve braking without using a brake
resistor. This parameter controls an overmagnetization
of the motor when running with a generatoric load. This
function can improve the OVC-function. Increasing the
electrical losses in the motor allows the OVC function
to increase the braking torque without exceeding
the over voltage limit. Please note that Saturation
brake is not as effective as Resistor brake.
[0]
Description of choice:
[1]
Setting Saturation brake to 100% allows
150% magnetisation current when running
with a generatoric load.

463 AEO Cos Phi

(AEO COS PHI)
Value:
0.50-0.91
Function:
CosPhi is usually a part of the nameplate on a
motor. It expresses the efficiency of the motor
and is here used to adjust motor-currents to give
2 µF
the most energy-efficient use.
Note: The use of AEO can reduce the dynamic
performance significantly and should not be used
on cranes, lifts, hoists, etc.
®
VLT 5000 FLUX
0.91 = OFF
7 mH
OFF
107