Danfoss VLT Setup guide

.05*0/$0/530-4
7-5¡*OTUBMMBUJPO
5SBJOJOH(VJEF

5IJTEPDVNFOUJTJOUFOEFEGPSQFSTPOTBUUFOEJOHB%BOGPTT5SBJOJOH4FTTJPOBOEJTOPUNFBOUUPTFSWFBTPSSFQMBDF
BOZFYJTUJOHPSGVUVSFUFDIOJDBMEPDVNFOUBUJPO'PS0QFSBUJOH*OTUSVDUJPOT%FTJHO(VJEFTBOEPUIFSUFDIOJDBM
EPDVNFOUBUJPOWJTJUXXXOBNDEBOGPTTDPN
%BOGPTTDBOBDDFQUOPSFTQPOTJCJMJUZGPSQPTTJCMFFSSPSTJODBUBMPHTCSPDIVSFTBOEPUIFSQSJOUFENBUFSJBM%BOGPTT
SFTFSWFTUIFSJHIUUPBMUFSJUTQSPEVDUTXJUIPVUOPUJDF5IJTBMTPBQQMJFTUPQSPEVDUTBMSFBEZPOPSEFSQSPWJEFEUIBU
TVDIBMUFSBUJPOTDBOCFNBEFXJUIPVUTVCTFRVFOUJBMDIBOHFTCFJOHOFDFTTBSZJOTQFDJmDBUJPOTBMSFBEZBHSFFE"MM
USBEFNBSLTJOUIJTNBUFSJBMBSFQSPQFSUZPGUIFSFTQFDUJWFDPNQBOJFT%BOGPTTBOEUIF%BOGPTTMPHPUZQFBSFUSBEFNBSLT
PG%BOGPTT"4"MMSJHIUTSFTFSWFE

VLT Installation
Rev.02 1
North America
Motion Controls
Confidential / Property of Danfoss Drives A/S
Danfoss Drives
VLT®Installation
General Installation
Danfoss Drives, VLT - Installation Startup Check List
General Installation
This presentation deals with the start-up of a Danfoss Drive, also known as a VLT. It
is designed to help handle the start-up of the drive for general installation in normal
applications. Because of the flexibility of these drives, there may be some specialized
applications that are not covered by these instructions. In that case, refer to the
Instruction Manual that came with the drive for specific information.

VLT Installation
Rev.02 2
North America
Motion Controls
Confidential / Property of Danfoss Drives A/S
VLT®Installation
General Installation
Introduction & Objectives
1. Warning
2. Reference material
3. Pre-Installation Checks
4. Installation Checks
5. Wiring
General Installation
This training module covers the checks and installation for any VLT. This section
starts with warnings, reference material, pre-installation checks, installation checks
and then covers general information about wiring. Control Wiring, Programming and
Startup of the VLT are covered in greater detail in following module designed for a
specific drive and application.

VLT Installation
Rev.02 3
North America
Motion Controls
Confidential / Property of Danfoss Drives A/S
Student is able to…
• State the main danger and precaution to be taken
when working with a VLT.
• Identify the Reference Material needed for an
installation and where that material may be found.
• Locate and explain each of the 9 steps needed during
the pre-installation checks.
• Identify the 4 installation checks for proper operation.
• Identify the correct terminals and general instructions
concerning the wiring of the power input, motor
output, control, external 24Vdc, brake and load-
sharing.
Objectives
Objectives
These objectives are listed as a goal for this training module. A review at the end of
this module tests the student concerning these objectives.

VLT Installation
Rev.02 4
North America
Motion Controls
Confidential / Property of Danfoss Drives A/S
Touching the electrical parts of the VLT may be fatal.
The largest models can require a significant amount of
time to discharge it’s internal circuitry to a safe level after
being disconnected from the incoming AC line power.
Check Instruction Manual for further warnings.
Warning
Warning
Touching the electrical parts of the VLT may be fatal — even after it has been
disconnected from the AC line. Even after power has been removed, the DC Link
Capacitors may take up to 50 minutes to fully discharge. The larger the drive the
larger the electrolytic capacitors in its power circuitry, which can maintain a
dangerous voltage level for up to 50 minutes on the largest power models, even
after power has been removed. Always be sure that power has been removed from
the drive for at least 50 minutes before working with the power circuitry of the drive.
Smaller drives can discharge sooner, refer to the instruction manual for more
details.
It is always wise to use a voltmeter to measure any potentially dangerous electrical
circuit before working on it.
It is important that the installer review additional warnings found in the instruction
manual for each Danfoss Drive.

VLT Installation
Rev.02 5
North America
Motion Controls
Confidential / Property of Danfoss Drives A/S
a. Instruction Manual
with each Drive
Other Useful Information
b. Connection Diagram
c. Schematic Diagram
2) Reference Material
2) Reference Material
These three pieces of reference material may be available to you when you are
starting up a drive.
a) The VLT Instruction Manual provides general information on topics like mounting
clearances, fuses, terminal tightening torques, and drive parameters. An instruction
Manual is shipped with each drive.
From the Customer, a Connection Diagram may be available which provides a sketch
indicating the layout and use of the equipment in the system.
c) A Schematic Diagram from the customer could also provide details of the wiring
between the drive, any options, and the control system.

VLT Installation
Rev.02 6
North America
Motion Controls
Confidential / Property of Danfoss Drives A/S
a. Visual Inspection
b. Proper Handling
c. Remove IM and kits from box
d. Check that VLT matches what was ordered
e. Check Incoming Power, Drive and Motor that they are
the same voltage range.
f. Insure that all hand tools, auxiliary equipment and kits
are available.
g. Insure Drive can handle maximum current of motor
h. Record Motor Data
i. Check Motor Wiring
3) Pre-Installation Checks
3) Pre-Installation Checks
This next section covers the 9 steps necessary in the pre-installation check.

VLT Installation
Rev.02 7
North America
Motion Controls
Confidential / Property of Danfoss Drives A/S
• Make a visual inspection for damage to the drive.
• Take into account the weight and size of the drive
and have proper equipment to lift the drive from its
container and to mount it safely.
a. Inspection and b. Handling
3) Pre-Installation Checks
3) Pre-Installation Checks
a. Once you have opened the box, check the VLT for any visual damage. If there is
major damage, please contact the organization that sold you the drive.
b. Some of the VLTs are very large, which require special equipment to remove it
from its container and mount it safely. It is important that a qualified material
handler removes the VLT from its packaging. It might also be necessary to
investigate the pathway the VLT takes to its mounting to insure it can fit around
each turn and under doorways.

VLT Installation
Rev.02 8
North America
Motion Controls
Confidential / Property of Danfoss Drives A/S
• Remove the Instruction Manual (IM) from
the box; and the Accessory Kit if present.
3) Pre-Installation Checks
c. Remove IM and kits
3) Pre-Installation Checks
c. It is important that all extra material, such as the Instruction Manual and
accessory kit be removed from the drive’s container. These are used later. If you
can not find the Instruction Manual, contact the person who originally opened the
container.