Danfoss VLT AutomationDrive FC 300 Series Programming Guide

Intermittent duty cycle
An intermittent duty rating refers to a sequence of duty cycles. Each cycle
consists of an on-load and an off-load period. The operation can be either
periodic duty or non-periodic duty.
L
LCP
The local control panel makes up a complete interface for control and pro-
gramming of the drive. The control panel is detachable and can be installed
up to 3 m (10 ft) from the drive, that is, in a front panel with the installation
kit option.
lsb
Least significant bit.
M
MCM
Short for "mille circular mil", an American measuring unit for cable cross-
section. 1 MCM=0.5067 mm
2
Motor running
Torque generated on output shaft and speed from 0 RPM to maximum
speed on motor.
msb
Most significant bit.
N
NLCP
Numerical local control panel interface for control and programming of the
drive. The display is numerical and the panel is used to show process val-
ues. The NLCP has no storage and copy functions.
n
M,N
Nominal motor speed (nameplate data).
n
s
Synchronous motor speed.
ns = 
2 × par . 1 − 23 × 60s
par . 1 − 39
n
slip
Motor slip.
O
Online/offline parameters
Changes to online parameters are activated immediately after the data val-
ue is changed. Press [OK] to activate changes to off-line parameters.
P
PCD
Process-control data.
PDS
The PDS is a speed control system for an electric motor, including the CDM
and motor, but without the equipment which it powers.
P
M,N
Rated motor power (nameplate data in kW or hp).
Position error
Position error is the difference between the actual position and the com-
manded position. The position error is the input for the position PI control-
ler.
Position unit
The physical unit for position values.
Power cycle
Switch off the mains until the display (LCP) is dark, then turn power on
again.
Power factor
The power factor is the relation between I
1
and I
RMS
.
Powerfactor = 
3 × U × I
1cosϕ
3 × U × I
RMS
The power factor for 3-phase control:
AU275636650261en-000101/130R0334 | 719Danfoss A/S © 2022.12
Glossary
VLT AutomationDrive FC 301/302
Programming Guide

Danfoss VLT AutomationDrive FC 300 Series Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 300 Series
Category	DC Drives
Language	English