Danfoss VLT 5000 Series Operating Instructions

VLT
®
5000 Series
Select Thermistor warning if a warning is desired when
the connected thermistor - and thus the motor
-getstoohot.
Select Thermistor trip if cutting out (trip) is desired when
the connected thermistor - and thus the motor
-overheats.
Select ETR Warning 1-4,ifawarningistocome
up on the display when the motor is overloaded
according to the calculations.
Select ETR Trip 1-4 if tripping is desired when the
motor is overloaded according to the calculations.
The frequency converter can also be programmed
to give off a warning signal via one of the digital
outputs, in which case the signal is given both for
warning and for trip (thermal warning).
129 External motor fan
(MOTOR EXTERN FAN)
Value:
✭No (NO)
[0]
Yes (YES)
[1]
Function:
This parameter informs the frequency converter
whether the motor has an external separately
supplied fan (external ventilation), indicating that
derating at low speed is unnecessary.
Description of choice:
If Yes [1] is selected, the graph below is followed
if the motor frequency is lower. If the motor
frequency is higher, the time will still derate as
if no fan had been installed.
130 Start frequency (START FREQUENCY)
Value:
0.0 - 10.0 Hz
✭ 0.0 Hz
Function:
This parameter allows setting of the output frequency
at which the motor is to start.
The output frequency ’leaps’ to the set value.
This parameter can be used e.g. for hoist
applications (cone rotor motors).
Description of choice:
Set the desired start frequency.
It is assumed that the start function in parameter
121hasbeensetto[3]or[4]andthatastart
delay time has been set in parameter 120; also,
a reference signal must be present.
NB!:
If parameter 123 is set higher than parameter
130, the start delay function (parameters
120 and 121) will be skipped.
131 Initial voltage (INITIAL VOLTAGE)
Value:
0.0 - parameter 103
✭ 0.0 Volt
Function:
Some motors, such as cone rotor motors, need extra
voltage/starting frequency (boost) when starting, so
as to disengage the mechanical brake.
For this purpose use parameters 130/131.
Description of choice:
Set the desired value required to disengage
the mechanical brake.
It is assumed that the start function in parameter
121hasbeensetto[3]or[4]andthatastart
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.51.A9.02 - VLT is a registered Danfoss trademark
112

Danfoss VLT 5000 Series Specifications

General

Brand	Danfoss
Model	VLT 5000 Series
Category	DC Drives
Language	English