Danfoss VLT 5000 Crane Series Operating Instructions

VLT
®
5000 Series
Programming
308 Terminal 53, analog input voltage
(AI [V ] 53 FUNCT.)
Function:
This parameter allows a choice of the desired
option on terminal 53.
Scaling of the input signal is effected in
parameters 309 and 310.
Description of choice:
No operation. Is selected if the frequency converter is
not to react to signals connected to the terminal.
Reference. Is selected to enable change of reference
by means of an analogue reference signal.
If other inputs are connected, these are added
up, taking account of their signs.
Feedback-signal. Is selected if closed loop control
with an analogue signal is used.
Torque limit. Is used if the torque limit value
set in parameter 221 is to be changed by
means of an analogue signal.
Thermistor. Is selected if a motor-integrated thermistor
(according to DIN44080/81) should stop the frequency
converter in case of motor overtemperature. The
cut-out value is > 3 k
. The thermistor is connected to
terminal 50 and the actual input selected (53 or 54).
NB!:
If the temperature of the motor is utilized
through a thermistor via the frequency converter,
the following most be noted:
In case of short circuits between motorwinding
and thermistor, PELV is not complied with.
In order to comply with PELV, the thermistor
must be utilized externally.
If a motor features a thermal switch instead, this
can also be connected to the input. I
f motors run
in parallel, the thermistors/thermal switches can
be connected in series (total resistance < 3 k
).
Parameter 128 must be programmed
for Thermistor
warning [1] or Thermistor trip [2].
Relative reference is selected if a relative adjustment
of the reference sum is requir
ed.
This function is only active if Relative has been selected
(parameter 214). The relative reference on terminal
54/60 is a percentage of the full range of the terminal
in question. This will be added to the sum of the other
references. If several relative references have been
selected (preset reference 215-218, 311 and 314),
these will be added first, following which this sum will
be added to the sum of the active references.
NB!:
If Reference or Feedback signal has been
selected on more than one terminal, these
signals will be added with signs.
Max. torque frequency. ThisisonlyusedinTorque
control, open loop (parameter 100) for limiting the
output frequency. Selected if the max. output
frequency is to be controlled by an analogue input
signal. The frequency range goes from Output
frequency low limit (parameter 201) to Output
frequency high limit (parameter 202).
309 Terminal 53, min. scaling
(AI 53 SCALE LOW)
Value:
0.0 - 10.0 Volt
✭ 0.0 Volt
Function:
This parameter is used for setting the signal
value that corresponds to the maximum reference
value set in parameter 204.
Description of choice:
Set the desired voltage value.
See also section Handling of single references.
310 Terminal 53, max. scaling
(AI 53 SCALE HIGH)
Value:
0.0 - 10.0 Volt
✭ 10.0 Volt
Function:
This parameter is used for setting the signal
value that corresponds to the maximum reference
value set in parameter 205.
Description of choice:
Set the desired voltage value.
See also section Handling of single references.
✭ = factory setting. () = display text [] = value for use in communication via serial communication port
MG.51.A9.02 - VLT is a registered Danfoss trademark
127

Danfoss VLT 5000 Crane Series Specifications

General

Brand	Danfoss
Model	VLT 5000 Crane Series
Category	Media Converter
Language	English