FC 300 Design Guide
How to Read this Design Guide
LCP
The Local Control Panel (LCP) makes up a complete interface for control and p rogramming of the FC
300 Series. The control panel is d etacha ble 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.
l
sb
Least significant bit.
M
CM
Short for Mille C ircular Mil, an Amer ican measuring unit for cable cross -section.
1MCM≡ 0.00079 in.
2
(0.5067 mm
2
).
m
sb
Most significant bit.
O
nline/Offl i ne Parameters
Changes to online pa rameters are activated immediately after the data value is changed. Changes
to offline parameters are not activated until you enter [OK] on the LCP.
P
rocess PID
The PI D regula tor mainta ins the desired speed, pressure, temperature, etc. by adjusting
the output frequency to match the varying load.
P
ulse Input/Incremental Encoder
An exte rnal, digita l pulse transmitter used for feeding back informatio
n on motor speed. The encoder
is used in applications where grea t accuracy in speed control is required.
R
CD
Residual Current Device.
S
et-up
You can save parameter settings in four set-ups. Change between
the four parameter
set-ups and edit one set-up while another set-up is active.
S
FAVM
Switching pattern called S tator F lux oriente d A synchronous V ector M odulation (par. 14-00).
S
lip Compensation
The ad justable frequency drive compensates for the moto
r slip by giving the frequency a supplement
that follows the m easured motor load keeping the motor speed almost constant..
S
mart Logic Control (SLC)
The SLC is a sequence of user-defined actions executed when the associated user-defined
events are evaluated as true by the SLC.
T
hermistor:
A temperature-dependent resistor placed where the temperature is to be monitored
(adjustable frequency drive or motor).
T
rip
A state entered in fault situations, e.g. if th
e adjustable frequency drive is subject to an over-temperature or
when the adjustab le frequency drive is protecting the motor, process, or mechanism. Restart is prevented
until the cause of the fault has d isappeared and the trip state is cancelled by activating reset or, in some
cases, b y being programmed to reset automa
tically. Trip may not be used for personal safety.
10
MG.33.B6.22 - VLT is a registered Danfoss trademark
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