Miscellaneous - Danfoss VLT AQUA Drive FC 202 Programming Manual

Introduction
1 1

1.6.5 Miscellaneous

Analog Inputs
The analog inputs are used for controlling various
functions of the frequency converter.
There are 2 types of analog inputs:
Current input, 0-20 mA and 4-20 mA
Voltage input, -10 to +10 V DC.
Analog Outputs
The analog outputs can supply a signal of 0-20 mA, 4-20
mA.
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 all applications
such as conveyor belts, displacement pumps and cranes.
Digital Inputs
The digital inputs can be used for controlling various
functions of the frequency converter.
Digital Outputs
The frequency converter features 2 Solid State outputs that
can supply a 24 V DC (max. 40 mA) signal.
DSP
Digital Signal Processor.
ETR
Electronic Thermal Relay is a thermal load calculation
based on present load and time. Its purpose is to estimate
the motor temperature.
®
Hiperface
®
Hiperface is a registered trademark by Stegmann.
Initialising
If initialising is carried out (14-22 Operation Mode), the
frequency converter 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 makes up a complete interface for
control and programming of the frequency converter. The
control panel is detachable and can be installed up to 3 m
from the frequency converter, i.e. in a front panel with the
installation kit option.
6
Programming Guide
NLCP
Numerical Local Control Pandel interface for control and
programming of the frequency converter. The display is
numerical and the panel is used to display process values.
The NLCP has no storing and copy functions.
lsb
Least significant bit.
msb
Most significant bit.
MCM
Short for Mille Circular Mil, an American measuring unit for
cable cross-section. 1 MCM = 0.5067mm
On-line/Off-line Parameters
Changes to on-line parameters are activated immediately
after the data value is changed. Press [OK] to activate
changes to off-line parameters.
Process PID
The PID control maintains the desired speed, pressure,
temperature, etc. by adjusting the output frequency to
match the varying load.
PCD
Process Control Data
Power Cycle
Switch off the mains until display (LCP) is dark – then turn
power on again.
Pulse Input/Incremental Encoder
An external, digital pulse transmitter used for feeding back
information on motor speed. The encoder is used in
applications where great accuracy in speed control is
required.
RCD
Residual Current Device.
Set-up
Save parameter settings in 4 Set-ups. Change between the
4 parameter Set-ups and edit one Set-up, while another
Set-up is active.
SFAVM
Switching pattern called Stator Flux oriented Asynchronous
Vector Modulation (14-00 Switching Pattern).
Slip Compensation
The frequency converter compensates for the motor slip
by giving the frequency a supplement that follows the
measured motor load keeping the motor speed almost
constant.
Smart 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 Smart Logic Control. (Parameter group 13-**
Smart Logic Control (SLC).
STW
Status Word
Danfoss A/S © Rev. 2014-01-21 All rights reserved.
2 .
MG20O702