The frequency converter features two 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 (par. 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 metres from the frequency converter, i.e. in a front panel by means of the installation kit option.
lsb
Least significant bit.
msb
Most significant bit.
MCM
Short for Mille Circular Mil, an American measuring unit for cable cross-section. 1 MCM = 0.5067 mm
2
.
On-line/Off-line Parameters
Changes to on-line parameters are activated immediately after the data value is changed. Changes to off-line parameters are not activated until you enter
[OK] on the LCP.
Process PID
The PID control maintains the desired speed, pressure, temperature, etc. by adjusting the output frequency to match the varying load.
PCD
Process 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
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.
SFAVM
Switching pattern called
Stator Flux oriented Asynchronous Vector Modulation (par. 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 Controller.
(Parameter group 13-**
Smart Logic Control (SLC).
STW
Status Word
FC Standard Bus
Includes RS 485 bus with FC protocol or MC protocol. See par. 8-30
Protocol
.
Thermistor:
A temperature-dependent resistor placed where the temperature is to be monitored (frequency converter or motor).
VLT
®
HVAC Drive Programming Guide 1 Introduction
MG.11.C9.02 - VLT
®
is a registered Danfoss trademark
9
1
To Next Page
Loading...
Need help?
General
