Danfoss Metasys N2 Programming Guide

1-59 Flying Start Test Pulses Frequency
Range: Function:
value range and function depends 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 PM Start Mode is set to
[1] Parking and only after starting the motor.
3.3.8
1-6* Load Depend. Setting
1-60 Low Speed Load Compensation
This parameter is not visible on the LCP.
Range: Function:
100 %* [0 -
300 %]
NOTICE
Parameter 1-60 Low Speed Load
Compensation not have eect when
parameter 1-10 Motor Construction=[1]
PM, non-salient SPM.
Enter the % value to compensate voltage in
relation to load when the motor is running at
low speed, and obtain the optimum U/f
characteristic. The motor size determines the
frequency range within which this parameter
is active.
Motor size [kW] Change–over [Hz]
0.25–7.5 <10
11–45 <5
55–550 <3–4
Table 3.8 Low Speed Load Compensation
130BA046.11
60%
0%
100%
U
m
Changeover
f
out
Par.1-60 Par.1-61
Illustration 3.9 Low Speed Load Compensation
1-61 High Speed Load Compensation
This parameter is not visible on the LCP.
Range: Function:
100 %* [0 - 300
%]
NOTICE
Parameter 1-61 High Speed Load
Compensation does not have eect
when parameter 1-10 Motor
Construction=[1] PM, non-salient SPM.
Enter the % value to compensate voltage in
relation to load when the motor is running at
high speed, and obtain the optimum U/f
characteristic. The motor size determines the
frequency range within which this parameter
is active.
Motor size Change-over
1.1–7.5 kW > 10 Hz
1-62 Slip Compensation
Range: Function:
0 %* [-500 -
500 %]
NOTICE
Parameter 1-62 Slip Compensation does
not have eect when
parameter 1-10 Motor Construction=[1]
PM, non-salient SPM.
Enter the % value for slip compensation, to
compensate for tolerances in the value of n
M,N
.
Slip compensation is calculated automatically,
that is on the basis of the rated motor speed
n
M,N
.
Parameter Descriptions
VLT
®
HVAC Drive FC 102
46 Danfoss A/S © 03/2015 All rights reserved. MG11CE02
33

Danfoss Metasys N2 Specifications

General

Brand	Danfoss
Model	Metasys N2
Category	DC Drives
Language	English