FC 300 Design Guide
How to Read this Design Guide
Ref
MIN
Determines the relationship between the refere n ce input at 0% value (typically 0V, 0m A, 4 mA) a nd
the resulting reference. The m inimum reference value set in par. 3-02.
Miscellaneous:
A
nalog Inputs
The analog inputs are used for controlling various functions of the adjustable fre
quency drive.
There are two types of analog inputs:
Current input, 0-20 mA and 4-20 mA
Voltage input, 0-10 V DC (FC 301)
Voltage input, -10 - +10 V DC (FC 302).
A
nalog Outputs
The analog o utputs can supply a signal of 0-20 mA, 4-20 mA, or a dig ital signal.
A
utomatic Motor Adaptation, A MA
AMA algorithm determines the electrical parameters for the conn
ected motor at standstill.
B
rake Resistor
The brake resistor is a module capable of absorbing t he braking energy generated in regenerative
braking. This regenerative braking energy increases the intermedia te circuit voltage and a brake
chopper ensures that the e nergy is transmitted to the brake re
sistor.
C
T Characteri stics
Constant torque characteristics used for all applications such as conveyor belts,
displacement pumps , and cranes.
D
igital Inputs
The digital inp u ts can be used for controlling variou
s functions of the adjustable frequency drive.
D
igital Outputs
The drive features two solid state outputs that can supply a 24 V DC (max. 40 mA) signal.
D
SP
DigitalSignalProcessor.
Relay Outputs:
TheFC301drivefeaturesoneprogrammableR
elay Output.
TheFC302drivefeaturestwoprogrammableRelayOutputs.
E
TR
Electronic Thermal Relay is a thermal load calc ulation based on pr esent load and time.
Its p u rpose is to estimate the motor tempera
ture.
H
iperface
®
Hiperface
®
is a registered trademark of Ste gm ann.
I
nitializing
If initializing i s carried out (par. 14-22), the adjustable frequenc y drive returns to the default setting.
I
ntermittent Duty Cycle
An interm it tent duty rating refers t
o 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.
9
MG.33.B6.22 - VLT is a registered Danfoss trademark
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