Danfoss vlt FC 102 Programming Guide

1-51 Min Speed Normal Magnetising [RPM]
This parameter is not visible on the LCP.
Range: Function:
Size
related*
[10 - 300
RPM]
NOTICE
Parameter 1-51 Min Speed
Normal Magnetising [RPM] has
no eect when
parameter 1-10 Motor
Construction=[1] PM, non-
salient SPM.
Set the required speed for normal
magnetizing current. If the speed is
set lower than the motor slip
speed, parameter 1-50 Motor
Magnetisation at Zero Speed and
parameter 1-51 Min Speed Normal
Magnetising [RPM] are of no signif-
icance.
Use this parameter along with
parameter 1-50 Motor Magnetisation
at Zero Speed. See Table 3.7.
1-52 Min Speed Normal Magnetising [Hz]
This parameter is not visible on the LCP.
Range: Function:
Size
related*
[ 0.3 - 10.0
Hz]
NOTICE
Parameter 1-52 Min Speed
Normal Magnetising [Hz] has
no eect when
parameter 1-10 Motor
Construction = [1] PM, non-
salient SPM.
Set the required frequency for
normal magnetizing current. If the
frequency is set lower than the
motor slip frequency,
parameter 1-50 Motor Magnetisation
at Zero Speed and
parameter 1-51 Min Speed Normal
Magnetising [RPM] are inactive.
Use this parameter along with
parameter 1-50 Motor Magnetisation
at Zero Speed. See Table 3.7.
1-58 Flying Start Test Pulses Current
Range: Function:
Size
related*
[ 0 - 200 %] Set the magnitude of the
magnetizing current for the pulses
used to detect the motor direction.
Higher values result in more
accurate results when the frequency
converter is oversized compared to
the motor. The value range and
1-58 Flying Start Test Pulses Current
Range: Function:
function depend on
parameter 1-10 Motor Construction:
[0] Asynchron: [0-200%]
Reducing this value reduces the
generated torque. 100% means full
nominal motor current. In this case,
the default value is 30%.
[1] PM non salient: [0-40%].
A general setting of 20% is
recommended on PM motors.
Higher values can give increased
performance. However, on motors
with back EMF higher than 300 VLL
(rms) at nominal speed and high
winding inductance (more than 10
mH) a lower value is recommended
to avoid wrong speed estimation.
The parameter is active when
parameter 1-73 Flying Start is
enabled.
1-59 Flying Start Test Pulses Frequency
Range: Function:
Size
related*
[ 0 - 500 %]
NOTICE
See description of
parameter 1-70 Start Mode for
an overview of the relation
between the PM Flying Start
parameters.
The parameter is active when
parameter 1-73 Flying Start is
enabled. The value range and
function depend on
parameter 1-10 Motor Construction:
[0] Asynchron: [0-500%]
Control the percentage of the
frequency for the pulses used to
detect the motor direction.
Increasing this value reduces the
generated torque. In this mode,
100% means 2 times the slip
frequency.
[1] PM non salient: [0-10%]
This parameter denes the motor
speed (in % of nominal motor
speed) below which the parking
function (see parameter 2-06 Parking
Current and parameter 2-07 Parking
Time becomes active). This
parameter is only active when
parameter 1-70 Start Mode is set to
[1] Parking and only after starting
the motor.
Parameter Descriptions
VLT
®
HVAC Drive FC 102
60 Danfoss A/S © 10/2019 All rights reserved. M0010001
33

Danfoss vlt FC 102 Specifications

General

Category	DC Drives
Model	Danfoss VLT FC 102
Output voltage range	0 to rated motor voltage
Power range	0.37 kW to 200 kW
Communication interfaces	RS-485
Protection features	Overvoltage, undervoltage, overcurrent, short circuit, earth fault, overtemperature, motor thermal protection
Cooling method	Air-cooled
Enclosure rating	IP20, IP21, IP55 (depending on model)
Approvals	CE, UL, cUL