Danfoss VLT 6000 HVAC User Manual

VLT
®
6000 HVAC
168
MG.60.B1.02 - VLT is a registered Danfoss trade mark
LSB:
Least significant bit.
Used in serial communication.
MCM:
Stands for Mille Circular Mil, an American measuring
unit for cable cross-section.
MSB:
Most significant bit.
Used in serial communication.
n
M,N
The rated motor speed (nameplate data).
η
VLT
The efficiency of the VLT frequency converter is
defined as the ratio between the power output and
the power input.
On-line/off-line parameters:
On-line parameters are activated immediately after the
data value is changed. Off-line parameters are not
activated until OK has been entered on the control
unit.
PID:
The PID regulator maintains the desired speed
(pressure, temperature, etc.) by adjusting the output
frequency to match the varying load.
P
M,N
The rated power delivered by the motor (nameplate
data).
Preset ref.
A permanently defined reference, which can be set
from -100% to +100% of the reference range. There
are four preset references, which can be selected via
the digital terminals.
Ref
MAX
The maximum value which the reference signal may
have. Set in parameter 205 Maximum reference,
Ref
MAX
.
Ref
MIN
The smallest value which the reference signal may
have. Set in parameter 204 Minimum reference,
Ref
MIN
.
Setup:
There are four Setups, in which it is possible to save
parameter settings. It is possible to change between
the four parameter Setups and to edit one Setup,
while another Setup is active.
Start-disable command:
A stop command that belongs to group 1 of the
control commands - see this group.
Stop command:
See Control commands.
Thermistor:
A temperature-dependent resistor placed where the
temperature is to be monitored (VLT or motor).
Trip:
A state which occurs in different situations, e.g. if the
VLT frequency converter is subjected to an over-
temperature. A trip can be cancelled by pressing reset
or, in some cases, automatically.
Trip locked:
A state which occurs in different situations, e.g. if the
VLT frequency converter is subject to an overtempe-
rature. A locked trip can be cancelled by cutting off
mains and restarting the VLT frequency converter.
U
M
The voltage transmitted to the motor.
U
M,N
The rated motor voltage (nameplate data).
U
VLT, MAX
The maximum output voltage.
VT characteristics:
Variable torque characteristics, used for pumps and
fans.

Danfoss VLT 6000 HVAC Specifications

General

Brand	Danfoss
Model	VLT 6000 HVAC
Category	DC Drives
Language	English