Danfuss VLT 5000 Series User manual

VLT®5000/6000 Series
■Contents
Introduction to VLT 5300-5500 / VLT 6350-6550 ............................... 2
General warning ...................................................................................................... 2
Introduction .............................................................................................................. 3
Transportation and unpacking ................................................................................. 4
Key diagram forVLT 5300-5500 380-500 V and VLT 6350-6550 380-460 V .......... 6
Technical data .......................................................................................................... 7
Mechanical installation ................................................................................ 11
Mechanical dimensions ......................................................................................... 11
Pre-installation ....................................................................................................... 12
Installation site ....................................................................................................... 12
Cable site ............................................................................................................... 13
Derating for high altitude ....................................................................................... 13
Derating for ambient temperature .......................................................................... 13
Electrical installation .................................................................................... 14
Electrical installation .............................................................................................. 14
Pre-fuses ................................................................................................................ 14
Earthing ................................................................................................................. 14
RFI switch .............................................................................................................. 14
Electrical installation, power cables ....................................................................... 15
Electrical installation, enclosure ............................................................................ 16
Terminal adapter kit ............................................................................................... 17
Tightening-up torques ............................................................................................ 17
Installation of 24 Volt external DCsupply .............................................................. 17
Installation of brake resistortemperature switch .................................................... 17
Cable cross-sectionand length .............................................................................. 18
Mains connection ................................................................................................... 19
Motor connection ................................................................................................... 20
Brake connection ................................................................................................... 21
Load sharing connection ....................................................................................... 21
Motor and DC coils connections on IP 00 ............................................................ 22
Control cable routing ............................................................................................. 23
Connection example .............................................................................................. 24
Electrical installation procedures ........................................................................... 25
Electrical installation, control leads ....................................................................... 26
Programming the VLT 5000 ................................................................................... 26
Programming the VLT 6000 HVAC ........................................................................ 26
Motor start ............................................................................................................. 26
MG.56.A1.02 - VLT is a registered Danfoss trade mark 1

VLT®5000/6000 Series
■General warning
The voltage of the frequency converter is
dangerous whenever the converter is con-
nected to mains. Incorrect fitting of the
motor or frequency converter may cause damage to
the equipment, serious injury or death. Conse-
quently, it is essential to comply with the instructions
in this manual as well as local and national rules and
safety regulations
1. The VLT frequency converter must be discon-
nected from mains if repair work is to be carried
out. Check that the mains supply has been dis-
connected and that the necessary time has
passed before removing motor and mains plugs.
2. The [STOP/RESET] or [OFF/STOP] key on the
control panel of the VLT frequency converter
does not disconnect the equipment from mains
and is thus not to be used as a safety switch.
3. Correct protective earthing of the equipment must
be established, the user must be protected
against supply voltage, and the motor must be
protected against overload in accordance with ap-
plicable national and local regulations.
4. The earth leakage currents are higher than 3.5
mA.
5. Protection against motor overload is not included
in the factory setting. If this function is desired,
set parameter 128 to data value ETR trip or data
value ETR warning. On VLT 6000, set parameter
117 to data value ETR trip or data value ETR
warning.
Note: The function is initialised at 1.16 x rated
motor current and rated motor frequency (see
Operating manual).
For the North American market: The ETR functions
provide class 20 motor overload protection in ac-
cordance with NEC.
6. Do not remove the plugs for the motor and mains
supply while the VLT frequency converter is con-
nected to mains. Check that the mains supply
has been disconnected and that the necessary
time has passed before removing motor and
mains plugs.
7. Please note that the VLT frequency converter has
more voltage inputs than L1, L2 and L3, when
loadsharing (linking of DC intermediate circuit)
and external 24 V DC have been installed. Check
that all voltage inputs have been disconnected
and that the necessary time has passed before
repair work is commenced.
■Warning against unintended start
1. The motor can be brought to a stop by means of
digital commands, bus commands, references or
a local stop, while the frequency converter is con-
nected to mains. If personal safety considerations
make it necessary to ensure that no unintended
start occurs, these stop functions are not suffi-
cient.
2. While parameters are being changed, the motor
may start. Consequently , the stop key [STOP/RE-
SET] or [OFF/STOP] must always be activated,
following which data can be modified.
3. A motor that has been stopped may start if faults
occur in the electronics of the frequency con-
verter, or if a temporary overload or a fault in the
supply mains or the motor connection ceases.
176FA055.10
Warning:
Touching the electrical parts may be fatal - even after the
equipment has been disconnected from mains.
Also make sure that other voltage inputs have been
disconnected, such as external 24 V DC, load-sharing
(linkage of DC intermediate circuit), as well as the motor
connection for kinetic back-up.
Using VLT 5300-5500 / 6350-6550: wait at least 15 minutes
MG.56.A1.02 - VLT is a registered Danfoss trade mark
2

VLT®5000/6000 Series
■Introduction
Manual objectives
The purpose of this manual is to provide the user
with the necessary information to install, program
and start up the Danfoss VLT 5300-5500 and VLT
6350-6550 frequency converters. This manual
should be read thoroughly before operating, servic-
ing or initializing the drives. This manual is intended
for use along with the Danfoss Operating Instruc-
tions Manual for the VLT 5000/6000 frequency
converters for detailed information.
Who should use this manual
This manual is intended for qualified service person-
nel responsible for setting up and servicing the
Danfoss VLT 5300-5500 and VLT 6350-6550
frequency converters. Qualified personnel have pre-
vious experience with the frequency converters and
understand electrical fundamentals, programming
procedures, required equipment and safety precau-
tions.
Organization of the manual
This manual is arranged in equipment installation
and connection sequence. The order of tasks are ar-
ranged as follows:
•Safety instructions
•Transportation and unpacking
•Technical data
•Mechanical installation
•Pre-installation
•Electrical installation guidelines
•Control cable routing
•Connection examples
•Electrical installation procedures
•Motor start
MG.56.A1.02 - VLT is a registered Danfoss trade mark 3

VLT®5000/6000 Series
■Transportation and unpacking
To lessen the possibility of damage it is recom-
mended that the crated VLT frequency converter is
located as close to the final installation site as possi-
ble before uncrating.
Door and ceiling clearances must be considered
when moving and installing the VLT frequency con-
verter. See below table for the crate dimensions:
Dimensions [mm]:
H W D
IP 00 2096 1219 699
IP 20 / 54 2324 1321 724
Weight [kg]:
VLT
5300/
6350
VLT
5350/
6400
VLT
5450/
6500
VLT
5500/
6550
IP 00 548 583 628 653
IP 20 654 689 734 759
IP 54 664 699 744 769
A qualified person with a forklift or other similar lifting
device will be needed to remove the VLT frequency
converter from the crate.
To open the crate:
•Remove the metal locking tabs that secure the
top panel of the crate, this will give access to the
lifting rings on the top of the VLT frequency con-
verter.
•On IP 00 versions remove the supporting brace
bolted to the lifting rings.
•A forklift or similar lifting device should be used at
this time to ensure the stability of the VLT fre-
quency converter while the rest of the crate is
removed. Position the lifting device to the front
side of the crate.
•The VLT frequency converter should be lifted us-
ing a spreader bar or other similar lifting device.
Lift the VLT frequency converter slightly, using all
four lifting rings, distributing the weight as evenly
as possible.
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4

VLT®5000/6000 Series
Do not lift in this manner.
Proper lifting method.
•Remove the metal locking tabs and the remaining
crate panels.
•On IP 00 versions remove the clear plastic safety
barrier from the front of the unit to prevent the
possibility of breaking during positioning of the
VLT frequency converter.
•The VLT frequency converter is now ready to be
lifted and positioned in the installation site.
NOTE: On IP 00 versions there are inductors
bolted to the bottom of the crate. Lift the VLT fre-
quency converter high enough to allow clearance
over these inductors.
•Observe cooling and ventilation requirements
given in the “Installation Site”section of this man-
ual.
•Secure to the floor using the four holes provided
in the bottom of the unit. On IP 00 versions se-
cure to the panel using the four mounting holes
provided in the back. Refer to the dimensional
drawings in this instruction manual.
IP 20 and IP 54
All dimensions are in mm.
IP 00
All dimensions are in mm.
MG.56.A1.02 - VLT is a registered Danfoss trade mark 5

VLT®5000/6000 Series
■Key diagram forVLT 5300-5500 380-500 V and VLT 6350-6550 380-460 V
Brake terminals 81, 82 and 104-106 are not avail-
able in VLT 6000 HVAC.
MG.56.A1.02 - VLT is a registered Danfoss trade mark
6

VLT®5000/6000 Series
■Mains supply 3 x 380-500 V
According to international require-
ments VLT type 5300 5350 5450 5500
Normal overload torque (110 %):
Output current IVLT,N [A] (380-440 V) 480 600 658 745
IVLT, MAX (60 s)[A](380-440 V) 528 660 724 820
IVLT,N [A] (441-500 V) 443 540 590 678
IVLT, MAX (60 s)[A](441-500 V) 487 594 649 746
Output SVLT,N [kVA] (380-440 V) 333 416 456 516
SVLT,N [kVA] (441-500 V) 384 468 511 587
Typical shaft output (380-440 V) PVLT,N [kW] 250 315 355 400
Typical shaft output (380-440 V) PVLT,N [HP] 300 350 450 500
Typical shaft output (441-500 V) PVLT,N [kW] 315 355 400 500
Typical shaft output (441-500 V) PVLT,N [HP] 350 450 500 600
High overload torque (150 %):
Output current IVLT,N [A] (380-440 V) 395 480 600 658
IVLT, MAX (60 s)[A](380-440 V) 593 720 900 987
IVLT,N [A] (441-500 V) 361 443 540 590
IVLT, MAX (60 s)[A](441-500 V) 542 665 810 885
Output SVLT,N [kVA] (380-440 V) 274 333 416 456
SVLT,N [kVA] (441-500 V) 313 384 468 511
Typical shaft output (380-440 V) PVLT,N [kW] 200 250 315 355
Typical shaft output (380-440 V) PVLT,N [HP] 300 350 450 500
Typical shaft output (441-500 V) PVLT,N [kW] 250 315 355 400
Typical shaft output (441-500 V) PVLT,N [HP] 350 450 500 600
Max. cross-section of copper cable to motor, 2 x 150 2 x 185 2 x 240 2 x 300
and loadsharing (380-440 V) [mm2]5) 3 x 70 3 x 95 3 x 120 3 x 150
Max. cross-section of copper cable to motor 2 x 120 2 x 150 2 x 185 2 x 300
and loadsharing (441-500 V) [mm2]5) 3 x 70 3 x 95 3 x 95 3 x 120
Max. cross-section of aluminium cable to motor 2 x 185 2 x 240 2 x 300
and loadsharing (380-440 V) [mm2]5) 3 x 120 3 x 150 3 x 185 3 x 185
Max. cross-section of aluminium cable to motor 2 x 150 2 x 185 2 x 240
and loadsharing (441-500) [mm2]5) 3 x 95 3 x 120 3 x 150 3 x 185
Max. cross-section of copper cable to motor 2x250mcm 2x350mcm 2x400mcm 2x500mcm
and loadsharing (380-440 V) AWG]2) 5) 3 x 2/0 3 x3/0 3 x 4/0 3x250mcm
Max. cross-section of copper cable to motor 2 x 4/0 2x300mcm 2x350mcm 2x500mcm
and loadsharing (441-500 V) AWG]2) 5) 3 x 1/0 3 x 3/0 3 x 3/0 3 x 4/0
Max. cross-section of aluminium cable to motor 2x350mcm 2x500mcm 2x600mcm 2x700mcm
and loadsharing (380-440 V) AWG]2) 5) 3 x 4/0 3x250mcm 3x300mcm 3x350mcm
Max. cross-section of aluminium cable to motor 2x300mcm 2x400mcm 2x500mcm 2x600mcm
and loadsharing (441-500 V) AWG]2) 5) 3 x 3/0 3 x 4/0 3x250mcm 3x300mcm
MG.56.A1.02 - VLT is a registered Danfoss trade mark 7

VLT®5000/6000 Series
According to international require-
ments VLT type 5300 5350 5450 5500
Rated input
current IVLT,N [A] (400 V) 389 467 584 648
IVLT, N (460 V) 431 431 526 581
2 x 150 2 x 185 2 x 240 2 x 300
Max. cross-section of copper cable to power
(380-440 V) [mm2]5) 3 x 70 3 x 95 3 x 120 3 x 150
2 x 120 2 x 150 2 x 185 2 x 300
Max. cross-section of copper cable to power
(441-500 V) [mm2]5) 3 x 70 3 x 95 3 x 95 3 x 120
2 x 185 2 x 240 2 x 300
Max. cross-section of aluminium cable to
power (380-440 V) [mm2]5) 3 x 120 3 x 150 3 x 185 3 x 185
2 x 150 2 x 185 2 x 240
Max. cross-section of aluminium cable to
power (441-500 V) [mm2]5) 3 x 95 3 x 120 3 x 150 3 x 185
2x250mcm 2x350mcm 2x400mcm 2x500mcm
Max. cross-section of copper cable to power
(380-440 V) AWG]2) 5) 3 x 2/0 3 x3/0 3 x 4/0 3x250mcm
2 x 4/0 2x300mcm 2x350mcm 2x500mcm
Max. cross-section of copper cable to power
(441-500 V) AWG]2) 5) 3 x 1/0 3 x 3/0 3 x 3/0 3 x 4/0
2x350mcm 2x500mcm 2x600mcm 2x700mcm
Max. cross-section of aluminium cable to
power (380-440 V) AWG]2) 5) 3 x 4/0 3x250mcm 3x300mcm 3x350mcm
2x300mcm 2x400mcm 2x500mcm 2x600mcm
Max. cross-section of aluminium cable to
power (441-500 V) AWG]2) 5) 3 x 3/0 3 x 4/0 3x250mcm 3x300mcm
Max. pre-fuses (mains) 630/600 700/700 800/800 800/800
Integral pre-fuses (softcharge circuit) 15/15 15/15 15/15 30/30
Integral pre-fuses (softcharge resistors) 12/12 12/12 12/12 12/12
Integral pre-fuses (SMPS) 5.0/5.0
Efficiency 0.97
Weight IP 00 480 515 560 585
Weight IP 20 595 630 675 700
Weight IP 54 605 640 685 710
Power loss at max. load 7500 9450 10650 12000
Enclosure IP 00 / IP 20 / IP 54
1. If UL/cUL is to be complied with, pre-fuses type
Bussmann FWH and FWX or similar must be
used. Pre-fuses type gR must be used for VLT
5300 - 5500 380-500 V. Fuses must be designed
for protection in a circuit capable of supplying a
maximum of 100,000 Amps ms (symmetrical),
500 V maximum.
2. American Wire Gauge.
3. Measured using 30 m screened motor cables at
rated load and rated frequency.
4. Min. cable cross-section is the smallest cable
cross-section allowed to be fitted on the termi-
nals. Always comply with national and local
regulations on min. cable cross-section.
5. Connection stud 2 x M12 / 3 x M12.
MG.56.A1.02 - VLT is a registered Danfoss trade mark
8

VLT®5000/6000 Series
■Mains supply 3x 380-500 V
According to international require-
ments VLT type 6350 6450 6500 6550
Normal overload torque (110 %):
Output cur-
rent IVLT,N [A] (380-415 V) 480 600 658 745
IVLT, MAX (60 s)[A](380-415 V) 528 660 724 820
IVLT,N [A] (440-460 V) 443 540 590 678
IVLT, MAX (60 s)[A](440-460 V) 487 594 649 746
Output SVLT,N [kVA] (380-415 V) 333 416 456 516
SVLT,N [kVA] (440-460 V) 384 468 511 587
Typical shaft output (380-415 V) PV LT, N [kW] 250 315 355 400
Typical shaft output (380-415 V) PV LT, N [HP] 300 350 450 500
Typical shaft output (440-460 V) PV LT, N [kW] 315 355 400 500
Typical shaft output (440-460 V) PV LT, N [HP] 350 450 500 600
Max. cross-section of copper cable to motor, 2 x 150 2 x 185 2 x 240 2 x 300
brake and loadsharing (380-415 V) [mm2]5) 3 x 70 3 x 95 3 x 120 3 x 150
Max. cross-section of copper cable to motor 2 x 120 2 x 150 2 x 185 2 x 300
and loadsharing (440-460 V) [mm2]5) 3 x 70 3 x 95 3 x 95 3 x 120
2 x 185 2 x 240 2 x 300
Max. cross-section of aluminium cable to
motor and loadsharing (380-415 V) [mm2]5) 3 x 120 3 x 150 3 x 185 3 x 185
2 x 150 2 x 185 2 x 240
Max. cross-section of aluminium cable to
motor and loadsharing (440-460) [mm2]5) 3 x 95 3 x 120 3 x 150 3 x 185
2x250mcm 2x350mcm 2x400mcm 2x500mcm
Max. cross-section of copper cable to motor
and loadsharing (380-415 V) AWG]2) 5) 3 x 2/0 3 x3/0 3 x 4/0 3x250mcm
2 x 4/0 2x300mcm 2x350mcm 2x500mcm
Max. cross-section of copper cable to motor
and loadsharing (440-460 V) AWG]2) 5) 3 x 1/0 3 x 3/0 3 x 3/0 3 x 4/0
2x350mcm 2x500mcm 2x600mcm 2x700mcm
Max. cross-section of aluminium cable to
motor and loadsharing (380-415 V) AWG]2) 5) 3 x 4/0 3x250mcm 3x300mcm 3x350mcm
2x300mcm 2x400mcm 2x500mcm 2x600mcm
Max. cross-section of aluminium cable to
motor and loadsharing (440-460 V) AWG]2) 5) 3 x 3/0 3 x 4/0 3x250mcm 3x300mcm
1. If UL/cUL is to be complied with, pre-fuses type
Bussmann FWH and FWX or similar must be
used. Pre-fuses type gR must be used for VLT
6350 - 6550 380-460 V. Fuses must be designed
for protection in a circuit capable of supplying a
maximum of 100,000 Amps ms (symmetrical),
500 V maximum.
2. American Wire Gauge.
3. Measured using 30 m screened motor cables at
rated load and rated frequency.
4. Min. cable cross-section is the smallest cable
cross-section allowed to be fitted on the termi-
nals. Always comply with national and local
regulations on min. cable cross-section.
5. Connection stud 2 x M12 / 3 x M12.
MG.56.A1.02 - VLT is a registered Danfoss trade mark 9

VLT®5000/6000 Series
According to international require-
ments VLT type 6350 6450 6500 6550
Rated input
current IVLT,N [A] (400 V) 389 467 584 648
IVLT, N (460 V) 431 431 526 581
2 x 150 2 x 185 2 x 240 2 x 300
Max. cross-section of copper cable to power
(380-415 V) [mm2]5) 3 x 70 3 x 95 3 x 120 3 x 150
2 x 120 2 x 150 2 x 185 2 x 300
Max. cross-section of copper cable to power
(440-460 V) [mm2]5) 3 x 70 3 x 95 3 x 95 3 x 120
2 x 185 2 x 240 2 x 300
Max. cross-section of aluminium cable to
power (380-415 V) [mm2]5) 3 x 120 3 x 150 3 x 185 3 x 185
2 x 150 2 x 185 2 x 240
Max. cross-section of aluminium cable to
power (440-460 V) [mm2]5) 3 x 95 3 x 120 3 x 150 3 x 185
2x250mcm 2x350mcm 2x400mcm 2x500mcm
Max. cross-section of copper cable to power
(380-415 V) AWG]2) 5) 3 x 2/0 3 x3/0 3 x 4/0 3x250mcm
2 x 4/0 2x300mcm 2x350mcm 2x500mcm
Max. cross-section of copper cable to power
(440-460 V) AWG]2) 5) 3 x 1/0 3 x 3/0 3 x 3/0 3 x 4/0
2x350mcm 2x500mcm 2x600mcm 2x700mcm
Max. cross-section of aluminium cable to
power (380-415 V) AWG]2) 5) 3 x 4/0 3x250mcm 3x300mcm 3x350mcm
2x300mcm 2x400mcm 2x500mcm 2x600mcm
Max. cross-section of aluminium cable to
power (440-460 V) AWG]2) 5) 3 x 3/0 3 x 4/0 3x250mcm 3x300mcm
Max. pre-fuses (mains) 630/600 700/700 800/800 800/800
Integral pre-fuses (softcharge circuit) 15/15 15/15 15/15 30/30
Integral pre-fuses (softcharge resistors) 12/12 12/12 12/12 12/12
Integral pre-fuses (SMPS) 5.0/5.0
Efficiency 0.97
Weight IP 00 480 515 560 585
Weight IP 20 595 630 675 700
Weight IP 54 605 640 685 710
Power loss at max. load 7500 9450 10650 12000
Enclosure IP 00 / IP 20 / IP 54
1. If UL/cUL is to be complied with, pre-fuses type
Bussmann FWH and FWX or similar must be
used. Pre-fuses type gR must be used for VLT
6350 - 6550 380-460 V. Fuses must be designed
for protection in a circuit capable of supplying a
maximum of 100,000 Amps ms (symmetrical),
500 V maximum.
2. American Wire Gauge.
3. Measured using 30 m screened motor cables at
rated load and rated frequency.
4. Min. cable cross-section is the smallest cable
cross-section allowed to be fitted on the termi-
nals. Always comply with national and local
regulations on min. cable cross-section.
5. Connection stud 2 x M12 / 3 x M12.
MG.56.A1.02 - VLT is a registered Danfoss trade mark
10

VLT®5000/6000 Series
■Mechanical installation
■Mechanical dimensions
VLT 5300-5500 380-500 Volt and VLT 6350-6550 380-460 Volt
VLT type A (mm) B (mm) C (mm) ab
(mm)
l/r
(mm)
5300-5500/6350-6550 IP 00 1896 1099 494 400 0
5300-5500/6350-6550 IP 20 2010 1200 600 400 0
5300-5500/6350-6550 IP 54 2010 1200 600 400 0
ab: Min. space above enclosure. l/r: Min. distance between VLT frequency converter
and other plant components, left and right sides.
VLT 5300-5500 and VLT 6350-6550 must be fas-
tened to the floor with bolts. The drawing shows the
dimensions.
MG.56.A1.02 - VLT is a registered Danfoss trade mark 11

VLT®5000/6000 Series
■Pre-installation
The most important part of the mechanical instal-
lation is the pre-installation planning. Neglecting this
planning may very well result in extra work during
and after the installation
Before you install your VLT frequency converter you
should select the best possible operational site.
Consider the following in the pre-installation plan:
•Ambient operating temperature.
•Installation method.
•The position of the VLT frequency converter.
•The cable routing.
•Ensure that the power source supplies the correct
voltage and necessary current.
•If the VLT frequency converter is without built-in
mains disconnector and fuses, ensure that the
external disconnector or fuses have the correct
current rating.
■Installation site
The VLT frequency converter must be installed verti-
cally.
The VLT frequency converter is cooled by means of
air circulation. For the unit to be able to release its
cooling air, the minimum distance over the unit must
be as shown in the table under Mechanical Dimen-
sion.
To protect the unit from overheating, it must be en-
sured that the ambient temperature does not rise
above the max. temperature stated for the VLT fre-
quency converter and that the 24-hour average
temperature is not exceeded. The max. tempe-
rature and 24-hour average can be seen from the
General Technical Data in the Operating Instructions.
If the ambient temperature is in the range of 45

-
55

C, derating of the VLT frequency converter will
become relevant, see Derating for ambient tempera-
ture.
The service life of the VLT frequency converter will
be reduced if derating for ambient temperature is not
taken into account.
■Installation of VLT 5300-5500 380-500 V and VLT 6350-6550380-460 V IP 00, IP 20 and IP 54
Cooling
All units in the above-mentioned series require a
minimum space of 400 mm above the enclosure and
must be installed on a plane floor. This applies to
both IP 00, IP 20 and IP 54 units.
Side-by-side
IP 00, IP 20 and IP 54
All IP 00, IP 20 and IP 54 units in the above-
mentioned series can be installed side by side
without any space between them, since these units
do not require cooling on the sides.
MG.56.A1.02 - VLT is a registered Danfoss trade mark
12

VLT®5000/6000 Series
■Cable site
The drawing and table show the mechanical setup of
the cable which can be done before the VLT fre-
quency converter is installed.
VLT type Mains
terminal
VLT 5300-5500/6350-6550 969 mm
VLT 5300-5500/6350-6550 with RFI 516 mm
VLT 5300/6350 with RFI/Disconnec-
tor 626 mm
VLT 5350-5500/6400-6550 with RFI/
Disconnector 516 mm
■Derating for high altitude
Below 1000 m altitude no derating is necessary for
VLT 5300-5500 or VLT 6350-6550.
Above 1000 m the ambient temperature (T AMB)or
max. output current (IVLT ,MAX) must be derated in ac-
cordance with the diagram below:
1. Derating of output current versus altitude at TAMB
= max. 45

C
2. Derating of max. TAMB versus altitude at 100%
output current.
■Derating for ambient temperature
The ambient temperature (TAMB,MAX) is the maxi-
mum temperature allowed. The average (TAMB,AVG)
measured over 24 hours must be at least 5ºC lower.
If VLT 5300-5500 or VLT 6350-6550 is operated at
temperatures above 45 ºC, a derating of the continu-
ous output current is necessary.
MG.56.A1.02 - VLT is a registered Danfoss trade mark 13

VLT®5000/6000 Series
■Electrical installation
The voltage
on the frequency converter is danger-
ous when the unit is connected to mains.
Incorrect installation of the motor or VLT
frequency converter may lead to material damage or
serious injury or it may be fatal.
Consequently, the instructions in this manual as well
as national and local rules and safety regulations
must be complied with.
Touching the electrical parts may be fatal, even after
the mains supply has been disconnected. Wait at
least 15 minutes if using VLT5300-5500 or VLT
6350-6550.
NB!:
It is the user’s or certified electrician’s
responsibility to ensure correct earthing and
protection in accordance with applicable national and
local norms and standards.
All terminals for the control cables and power cables
are located behind the protective cover of the VLT
frequency converter. The protective cover can be re-
moved by means of a screwdriver.
Once the protective cover has been removed, the
actual EMC-correct installation can start.
■Pre-fuses
For VLT type 5300-5500 380-500 V and VLT type
6350-6550 380-460 V, external pre-fuses must be in-
stalled in the mains supply to the VLT frequency
converter.
Note that by VLT type 5300-5500 and VLT type
6350-6550 you can built-in the pre-fuses and a
mains disconnector.
If UL/cUL is to be complied with, pre-fuses type
Bussmann FWH and FWX or similar must be used.
If UL/cUL not is to complied with pre-fuses type gR
can be used for VLT 5300-5500, 380-500 V and VLT
6350-6550 380-460 V. Fuses must be designed for
protection in a circuit capable of supplying a maxi-
mum of 100,000 Amps ms (symmetrical), 500 V
maximum.
See Technical data for correct sizing of pre-fuses.
■Earthing
The following basic issues need to be considered
when installing a frequency converter, so as to ob-
tain electromagnetic compatibility (EMC).
•Safety earthing: Please note that the frequency
converter has a high leakage current and must
be earthed appropriately for safety reasons. Ap-
ply local safety regulations.
•High-frequency earthing: Keep the earth wire
connections as short as possible.
Connect the different earth systems at the lowest
possible conductor impedance. The lowest possible
conductor impedance is obtained by keeping the
conductor as short as possible and by using the
greatest possible surface area.
The metal cabinets of the different devices are
mounted on the cabinet rear plate using the lowest
possible HF impedance. This avoids having different
HF voltages for the individual devices and avoids the
risk of radio interference currents running in connec-
tion cables that may be used between the devices.
The radio interference will have been reduced.
In order to obtain a low HF impedance, use the fas-
tening bolts of the devices as HF connection to the
rear plate. It is necessary to remove insulating paint
or similar from the fastening points.
■RFI switch
Mains supply isolated from earth:
If the VLT frequency converter is supplied from an
isolated mains source (IT mains), the RFI switch can
be turned off (OFF). In OFF position, the internal
RFI capacities (filter capacitors) between the chassis
and the intermediate circuit are cut off to avoid dam-
age to the intermediate circuit and to reduce the
earth capacity currents (according to IEC 1800-3).
See position of RFI switch by Electrical installation,
enclosures.
NB!:
The RFI switch is not to be operated with
mains connected to the unit. Check that the
mains supply has been disconnected before operat-
ing the RFI switch.
NB!:
Open RFI switch is only
allowed at factory set switching frequencies.
NB!:
The RFI switch disconnects the capacitors
galvanically; however, transients higher than
approx. 1,000 V will be bypassed by a spark gap.
Mains supply connected to earth:
The RFI switch must be in ON position in order for
the frequency converter to comply with the EMC-
standard.
MG.56.A1.02 - VLT is a registered Danfoss trade mark
14

VLT®5000/6000 Series
■Electrical installation, power cables
Compact IP 20/IP 54
Without disconnector and mains fuses
VLT 5300-5500, 380-500 V
VLT 6350-6550, 380-460 V
Compact IP 20/IP 54
With disconnector and mains fuses
VLT 5300-5500, 380-500 V
VLT 6350-6550, 380-460 V
Brake terminals 81, 82 and 104-106 are not avail-
able in VLT 6000 HVAC.
MG.56.A1.02 - VLT is a registered Danfoss trade mark 15

VLT®5000/6000 Series
■Electrical installation, enclosure
Compact IP 20 / IP 54
VLT 5300-5500, 380-500 V
VLT 6350-6550, 380-460 V
Brake terminals 81, 82 and 104-106 are not avail-
able in VLT 6000 HVAC.
MG.56.A1.02 - VLT is a registered Danfoss trade mark
16

VLT®5000/6000 Series
■Terminal adapter kit
The terminal adapter kit is an optional kit for VLT
5300-5500 and VLT 6350-6650.
The terminal adapter kit makes it possible to connect
the power wires with the power terminals i.e. the
mains-, motor-, load sharing and brake terminals.
The ordering numbers of the terminal adapter kit are:
VLT 5300-5500/6350-6550 EX, DX 176F1815
VLT 5300-5500 EB, DE 176F1816
■Tightening-up torques
The table shows the torque required when fitting ter-
minals to the VLT frequency converter.
For VLT 5300-5500 and VLT 6350-6550 the cables
must be fastened with bolts or the terminal adapter
kit. These figures apply to the following terminals:
Mains terminals Nos R, L1, 91
S, L2, 92
T, L3, 93
Motor terminals Nos U, T1, 96
V, T2, 97
W, T3, 98
Earth terminal No 95
Brake resistor R- 81
terminals R+ 82
Loadsharing DC- 88
DC+ 89
VLT type Tightening-up
torque
Bolt
size
VLT 5300-5500 1) 42 Nm M12
VLT 6350-6550 42 Nm M12
1) For the brake terminals, the tightening-up
torque is 11.3 Nm and the bolt size M8.
■Installation of 24 Volt external DCsupply
Torque: 0.5 - 0.6 Nm
Screw size: M3
No. Function
35, 36 24 V external DC supply
24 V external DC supply can be used as low-voltage
supply to the control card and any option cards in-
stalled. This enables full operation of the LCP (incl.
parameter setting) without connection to mains.
Please note that a warning of low voltage will be
given when 24 V DC has been connected; however,
there will be no tripping. If 24 V external DC supply
is connected or switched on at the same time as the
mains supply, a time of min. 200 msec. must be set
in parameter 120 Start delay.
A pre-fuse of min. 6 Amp, slow-blow, can be fitted to
protect the external 24 V DC supply. The power con-
sumption is 15-50 W, depending on the load on the
control card.
NB!:
Use 24 V DC supply of type PELV to ensure
correct galvanic isolation (type PELV) on the
control terminals of the VLT frequency converter.
■Installation of brake resistortemperature switch
Torque: 0.5-0.6 Nm
Screw size: M3
No. Function
106, 104,
105
Brake resistor temperature
switch.
NB!:
This function is only available on VLT 5032-
5052 200-240 V and VLT 5060-5500 380-500
V.
If the temperature of the brake resistor gets
too high and the KLIXON switch drops out, the VLT
frequency converter will stop braking. The motor will
start coasting.
A KLIXON switch must be installed that can
either be ‘normally closed’or ‘normally open’. If this
function is not used, 106 and 104 must be short-
circuited together.
MG.56.A1.02 - VLT is a registered Danfoss trade mark 17

VLT®5000/6000 Series
■Cable cross-sectionand length
See Technical data for correct sizing of motor cable
and mains cable cross-section. Always comply with
national and local regulations on cable cross-
sections. It is important to keep the motor cable as
short as possible so as to reduce the noise level and
leakage currents to a minimum.
Max. motor cable length for screened cable is 150 m.
Max. motor cable length for unscreened cable is 300
m.
MG.56.A1.02 - VLT is a registered Danfoss trade mark
18

VLT®5000/6000 Series
■Mains connection
Mains must be connected to terminals R/L1/91, S/
L2/92, T/L3/93.
NB!:
Check the name plate to ensure that the
mains voltage of the VLT frequency converter
matches the power supply of your plant.
Ensure that the power supply can supply the neces-
sary current to the VLT frequency converter, see
Technical data.
If the unit is without built-in mains disconnector and
fuses, ensure that the appropriate disconnector or
fuses have the correct current rating.
See Technical data for correct sizing of cable cross-
sections.
See Electrical installation prodedures for how install
the mains connections to the VLT frequency con-
verter.
Mains connection from the side without built-in
disconnector and fuses
Mains connection from the bottom without built-
in disconnector and fuses
Mains connection from the side with built-in dis-
connector and fuses
MG.56.A1.02 - VLT is a registered Danfoss trade mark 19

VLT®5000/6000 Series
Mains connection from the bottom with built-in
disconnector and fuses
■Motor connection
The motor must be connected to terminals U/T1/96,
V/T2/97, W/T3/98. Earth to terminal 99.
All types of three-phase asynchronous standard mo-
tors can be used with a VLT frequency converter unit.
The factory setting is for clockwise rotation with the
VLT frequency transformer output connected as fol-
lows.
Terminal U/T1/96 connected to U-phase
Terminal V/T2/97 connected to V-phase
Terminal W/T3/98 connected to W-phase
The direction of rotation can be changed by switch-
ing two phases in the motor cable.
See Technical data for correct sizing of cable cross-
sections.
See Electrical installation prodedures for how install
the motor connections to the VLT frequency con-
verter.
Motor connection from the side
Motor connection from the bottom
MG.56.A1.02 - VLT is a registered Danfoss trade mark
20