Danfoss VLT AQUA Drive FC 202 Design Manual page 11

How to Read this Design Gui...
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VLT
The efficiency of the frequency converter is defined as the
ratio between the power output and the power input.
Start-disable command
A stop command belonging to the group 1 control
commands - see this group.
Stop command
See Control Command.
References:
Analog Reference
A signal transmitted to the analog inputs 53 or 54, can be
voltage or current.
Bus Reference
A signal transmitted to the serial communication port (FC
port).
Preset Reference
A defined preset reference from -100% to +100% of the
reference range. Selection of eight preset references via
the digital terminals.
Pulse Reference
A pulse frequency signal transmitted to the digital inputs
(terminal 29 or 33).
Ref
MAX
Determines the relationship between the reference input
at 100% full scale value (typically 10 V, 20 mA) and the
resulting reference. The maximum reference value set in
3-03 Maximum Reference.
Ref
MIN
Determines the relationship between the reference input
at 0% value (typically 0 V, 0 mA, 4 mA) and the resulting
reference. The minimum reference value set in
3-02 Minimum Reference.
Miscellaneous:
Analog Inputs
The analog inputs are used for controlling various
functions of the frequency converter.
There are two types of analog inputs:
Current input, 0–20 mA, and 4-20 mA
Voltage input, 0-10 V DC.
Analog Outputs
The analog outputs can supply a signal of 0–20 mA, 4–20
mA, or a digital signal.
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VLT AQUA Drive FC 202 Design Guide
Automatic Motor Adaptation, AMA
AMA algorithm determines the electrical parameters for
the connected motor at standstill.
Brake Resistor
The brake resistor is a module capable of absorbing the
brake power generated in regenerative braking. This
regenerative braking power increases the intermediate
circuit voltage and a brake chopper ensures that the
power is transmitted to the brake resistor.
CT Characteristics
Constant torque characteristics used for positive
displacement pumps and blowers.
Digital Inputs
The digital inputs can be used for controlling various
functions of the frequency converter.
Digital Outputs
The drive features two solid-state outputs that can supply
a 24 V DC (max. 40 mA) signal.
DSP
Digital Signal Processor.
Relay Outputs
The frequency converter features two programmable relay
outputs.
ETR
Electronic Thermal Relay is a thermal load calculation
based on present load and time. Its purpose is to estimate
the motor temperature.
GLCP
Graphical Local Control Panel (LCP 102)
Initialising
If initialising is carried out (14-22 Operation Mode), the
programmable parameters of the frequency converter
return to their default settings.
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 none-
periodic duty.
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MG20Z102 - VLT is a registered Danfoss trademark
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