Danfoss VLT 5000 Series Operating Instructions

VLT
®
5000 Series
Programming
■ Parameters - Load and motor
100 Configuration
(CONFIG. MODE)
Value:
✭Speed control, open loop
(SPEED OPEN LOOP)
[0]
Speed control, closed loop
(SPEED CLOSED LOOP)
[1]
Process control, closed loop
(PROCESS CLOSED LOOP)
[3]
Torque control, open loop
(TORQUE OPEN LOOP)
[4]
Torque control, speed feedback
(TORQUE CONTROL SPEED)
[5]
Function:
This parameter is used for selecting the configuration
to which the frequency converter is to be adapted.
This makes adaptation to a given application simple,
because the parameters that are not used in the given
configuration are covered up (not active). By changing
between the different application configurations,
bumpless transfer (frequency only) is ensured.
Description of choice:
If Speed control, open loop [0] is selected, a normal
speed control (without feedback signal) is obtained,
but with automatic slip compensation, ensuring a
nearly constant speed at varying loads.
Compensations are active, but may be disabled
as required in parameter group 100.
If Speed control, closed loop [1] is selected, a full
holding torque is obtained at 0 rpm, in addition to
increased speed accuracy. A feedback signal must
be provided and the PID regulator must be set. (See
also connection examples in the Design Guide).
If Process control, closed loop [3] is selected, the
internal process regulator will be activated, thereby
enabling accurate control of a process with respect
to a given process signal. The process signal can be
set using the actual process unit or as a percentage.
A feedback signal must be supplied from the process,
andtheprocesssetpointmustbeadjusted(Seealso
connection examples in the Design Guide).
If Torque control, open loop [4] is selected, the
speed is regulated and the torque is kept constant.
This is done without a feedback signal, since VL
T
5000 accurately calculates the torque on the basis
of the current measurement (See also connection
examples in the Design Guide).
If Torque control, speed feedback [5] is selected, an
encoder speed feedback signal must be connected
to the digital terminals 32/33.
Parameter 205 Maximum reference and parameter
415 Maximum feedback must be adapted to the
application if [1], [3], [4] or [5] is selected.
101 Torque characteristics
(TORQUE CHARACT)
Value:
✭High-constant torque (H-CONSTANT TORQUE)
[1]
High-variable torque low (H-VAR.TORQ.: LOW)
[2]
High-variable torque medium
(H-VAR.TORQ.: MEDIUM)
[3]
High-variable torque high
(H-VAR.TORQ.: HIGH)
[4]
High-special motor characteristics
(H-SPEC.MOTOR CHARACT)
[5]
High-variable torque with low starting torque
(H-VT LOW W. CT-START)
[6]
High-variable torque with medium starting torque
(H-VT MED W. CT-START)
[7]
High-variable torque with high starting torque
(H-VT HIGH W. CT-START)
[8]
Normal-constant torque
(N-CONSTANT TORQUE)
[11]
Normal-variable torque low
(N-VAR.TORQ.: LOW)
[12]
Normal-variable torque medium
(N-VAR.TORQ.: MEDIUM)
[13]
Normal-variable torque high
(N-VAR.TORQ.: HIGH)
[14]
Normal-special motor characteristics
(N-SPEC.MOTOR CHARACT)
[15]
Normal-variable torque with low constant
starting torque (N-VT LOW W. CT-START)
[16]
Normal-variable torque with medium constant
starting torque (N-VT MED W. CT-START)
[17]
Normal-variable torque with high constant
starting torque (N-VT HIGH W. CT-START)
[18]
Function:
In this parameter, the principle for adjusting the U/f
characteristics of the frequency converter to the
torque characteristics of the load is selected. By
changing between the different torque characteristics,
bumpless transfer (voltage only) is ensured.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.51.A9.02 - VLT is a registered Danfoss trademark
103

Danfoss VLT 5000 Series Specifications

General

Brand	Danfoss
Model	VLT 5000 Series
Category	DC Drives
Language	English