VLT® 5000 Crane
Programming
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.
Thermistor
. Is selected if a thermistor integrated
in the motor is to be able to stop the frequency
converter in case of motor overtemperature. The
cut-out value is > 3 kohm.
If a motor features a KLIXON thermal switch instead,
this can also be connected to the input. If motors
run in parallel, the thermistors/thermal switches
can be connected in series (total resistance <
3 kohm). A thermistor or a Klixon switch must
be set between terminal 50 and terminal 53.
Parameter 128 must be programmed for
Thermistor
warning
[1] or
Thermistor trip
[2].
309 AI 53 SCALE LOW
Value:
0.0 - 10.0 Volt
✭
0.0 Volt
Function:
This parameter is used for setting the signal value that
is to correspond to the minimum reference (0 RPM).
Description of choice:
Set the required voltage value. For reasons of accuracy,
compensation should be made for voltage losses in
long signal cables. If the Time out function is to be
used (parameter 317
Time out
and 318
Function after
time out
), the value set must be higher than 1 Volt.
310
AI 53 SCALE HIGH
Value:
0 - 10.0 Volt
✭
10.0 Volt
Function:
This parameter is used for setting the signal value that
is to correspond to the maximum reference value,
parameter 205
Maximum reference, Ref
MAX
.
Description of choice:
Set the required voltage value. For reasons of
accuracy, compensation should be made for
voltage losses in long signal cables.
314 AI [mA] 60 FUNCT
Value:
✭
No function (NO OPERATION)
[0]
Reference (REFERENCE)
[1]
Function:
This parameter allows a choice between the
different functions available for the input, terminal 60.
Scaling of the input signal is effected in parameter
315
Terminal 60, min. scaling
and parameter
316
Terminal 60, max. scaling
.
Description of choice:
No function
[0]. Is selected if the frequency converter
is not to react to signals connected to the terminal.
Reference
[1]. If this function is selected, the reference
can be changed by means of an analogue reference
signal. If reference signals are connected to more than
one input, these reference signals must be added up.
315
AI 60 SCALE LOW
Value:
0.0 - 20.0 mA
✭
4.0 mA
Function:
This parameter is for setting the signal value
corresponding to the minimum reference (0 RPM).
Description of choice:
Set the required current value. If the Time out function is
to be used (parameter 317
Time out
and 318
Function
after time out
) the value set must be higher than 2 mA.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.50.N4.02 - VLT is a registered Danfoss trademark
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