Danfoss VLT HVAC Drive FC 100 Series, Руководство по конструкции

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Bus Reference
A signal transmitted to the serial communication port (FC
port).
Preset Reference
A defined preset reference to be set 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, 20mA) 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 0V, 0mA, 4mA) 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 Adjustable frequency drive.
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.
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
braking energy generated in regenerative braking. This
regenerative braking energy 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 screw and scroll
refrigeration compressors.
Digital Inputs
The digital inputs can be used for controlling various
functions of the Adjustable frequency drive.
Digital Outputs
The Adjustable frequency drive features two Solid State
outputs that can supply a 24 V DC (max. 40 mA) signal.
DSP
Digital Signal Processor.
Relay Outputs:
The Adjustable frequency drive 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 (LCP102)
Initializing
If initializing is carried out (
14-22 Operation Mode ), the
programmable parameters of the Adjustable frequency
drive 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 non-
periodic duty.
LCP
The Local Control Panel (LCP)keypad makes up a complete
interface for control and programming of the Adjustable
frequency drive. The control panelkeypad is detachable
and can be installed up to 10 ft [3 m] from the Adjustable
frequency drive, i.e., in a front panel by means of the
installation kit option.
The local control panel is available in two versions:
- Numerical LCP101 (NLCP)
- Graphical LCP102 (GLCP)
lsb
Least significant bit.
MCM
Short for Mille Circular Mil, an American measuring unit for
cable cross-section. 1 MCM
≡ 0.00079 in
2
(0.5067 mm
2
).
How to Read this Design Gui...
VLT
®
HVAC Drive Design Guide
1-4 MG11BB22 - VLT
®
is a registered Danfoss trademark
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