Danfoss FC 300 Design Manual page 10

1. How to Read this Design Guide
Initializing
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If initializing is carried out (par. 14-22), the adjustable frequency drive returns to the default
setting.
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.
LCP
The Local Control Panel (LCP) makes up a complete interface for control and programming of the
FC 300 Series. The control panel is detachable and can be installed up to 9.8 ft (3 meters) from
the adjustable frequency drive, i.e. in a front panel by means of the installation kit option.
lsb
Least significant bit.
msb
Most significant bit.
MCM
Short for Mille Circular Mil, an American measuring unit for cable cross-section. 1 MCM = 0.00079
2
in [0.5067 mm
Online/Offline Parameters
Changes to online parameters are activated immediately after the data value is changed. Changes
to offline parameters are not activated until you enter [OK] on the LCP.
Process PID
The PID regulator maintains the desired speed, pressure, temperature, etc. by adjusting the out-
put frequency to match the varying load.
Pulse Input/Incremental Encoder
An external, digital pulse transmitter used for feeding back information on motor speed. The en-
coder is used in applications where great accuracy in speed control is required.
RCD
Residual Current Device.
Set-up
You can save parameter settings in four set-ups. Change between the four parameter set-ups and
edit one while another set-up is active.
SFAVM
Switching pattern called Stator Flux-oriented Asynchronous Vector Modulation (par. 14-00).
Slip Compensation
The adjustable frequency drive compensates for the motor slip by giving the frequency a supple-
ment that follows the measured motor load, thus keeping the motor speed almost constant.
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MG.33.B9.22 - VLT ® is a registered Danfoss trademark.
FC 300 Design Guide