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VLT Installation

Rev.02

47

North America 
Motion Controls

Confidential / Property of Danfoss Drives A/S

Review

10) Which of the following statements is NOT part

of the Pre-Installation Check?

A. Make a Visual inspection of the drive and its 

packaging.

B. Insure VLT can handle maximum current of 

the motor.

C. Record Motor Nameplate Data
D. Determine if motor is IEC or NEMA rated.
E. Check that motor is wired for RUN.

Содержание VLT

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Страница 3: ...llation 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...

Страница 4: ...cks 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...

Страница 5: ...l 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 instr...

Страница 6: ...he 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 u...

Страница 7: ...ou 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 M...

Страница 8: ...hes 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 maxim...

Страница 9: ...ion 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 V...

Страница 10: ...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 remo...

Страница 11: ...A Catalog Number which is explained on the next slide is the long number In the example above the catalog number is VLT 5011 P T2 CN1 ST R0 DL F00 A00 When ordered the Catalog Number is converted into...

Страница 12: ...NEMA 1 IP 20 C54 Compact NEMA 12 IP 54 3 Pre Installation Checks d Compare drive Hardware ST DE Fuse Disc 24V Loadshare DBrake DX Fuse Disc 24V Loadshare EB 24V Loadshare DBrake EX 24V Loadshare PB F...

Страница 13: ...ments The Material Number which uniquely identifies the drive and all of its options The Serial Number which describes the manufacturing date The Schematic Number which shows the control and power wir...

Страница 14: ...or the right side of the option box Material Number Serial Number These are the other two nameplates that are present on drives with an APU panel option enclosure While they don t provide drive rating...

Страница 15: ...have the same voltage range 3 Pre Installation Checks e Match power drive and motor 3 Pre Installation Checks e Before installing the drive check to be sure that the power line the drive and the motor...

Страница 16: ...Pre Installation Checks f Insure that all hand tools auxiliary equipment and kits are available Options and kits Part numbers for a dynamic brake resistor additional RFI Filters an LCP remote mountin...

Страница 17: ...heck Max current 3 Pre Installation Checks g Always insure that VLT can handle maximum current of the motor It is important to check the technical data of the instruction manual for the drive you are...

Страница 18: ...hecks h Record Motor Info 3 Pre Installation Checks h Record motor data information Write down the motor nameplate information This is important later during programming A conversion between HP and kW...

Страница 19: ...must be converted to kW The formula is 1 Hp of a kW The chart above shows the equivalent A 100Hp drive must be programmed for 75kW in the drive Each drive size can be programmed to accommodate 4 size...

Страница 20: ...wired for run Check motor wiring to see if it is the same voltage as VLT 3 Pre Installation Checks i Motor Wiring 3 Pre Installation Checks i Check Motor Wiring Insure that there are no power correcti...

Страница 21: ...General Wiring Preparations d Mechanical Installation Mounting 4 Installation Checks 4 Installation Checks Section 4 covers the 4 installation checks which are input fuses environmental concerns gene...

Страница 22: ...of the instruction manual Most VLT units do not include fuses and it is the responsibility of the installer to ensure the proper fusing in order to comply with local electrical codes and satisfy UL re...

Страница 23: ...ation Checks b Environmental Concerns 4 Installation Checks b Environmental Concerns Because the drive relies on the ambient air for cooling it is important to observe the limitations on ambient air t...

Страница 24: ...or a particular VLT At 6 in the morning the temp of the VLT rises quickly for argument sake to just below the maximum temp It then stays there for the next 12 hours until 1800 6pm at night It then coo...

Страница 25: ...levation The higher the location for the drive the thinner the air and the less cooling occurs In the chart above as the altitude increases as shown on the bottom the output of the drive is reduced No...

Страница 26: ...me degree of protection from falling dust and water Therefore drives with a NEMA 1 IP 20 and 12 IP 54 enclosures should be mounted indoors in a relatively clean and dry location If the application req...

Страница 27: ...te the standard types of NEMA 1 enclosure configurations available to the public The drives can be purchased as a standalone drive used most often in replacement orders for existing units The two APU...

Страница 28: ...can be supplied Because the drive relies on the ambient air for cooling it is important to observe the limitations on ambient air temperature and elevation Contact the service department if you think...

Страница 29: ...Concerns 4 Installation Checks b Environmental Concerns If construction work continues after the drive is mounted it is important to keep the drive as free as possible from concrete dust and similar d...

Страница 30: ...eneral Wiring 4 Installation Checks c General Wiring Preparations Most smaller drives have knock outs for conduit entry Larger drives provide a removable conduit entry plate It is important to remove...

Страница 31: ...ertically unless otherwise stated in the VLT Instruction Manual In is important to check the wall strength and mounting hardware to insure it can handle the weight of the drive Mechanical dimensions o...

Страница 32: ...ough the bottom of its enclosure and exhausting it out the top It is therefore important to provide enough space above and below the drive to ensure proper flow of cooling air To determine the necessa...

Страница 33: ...general wiring practices The next part covers the power or line wiring from incoming power to the drive The motor wiring covers the connections between the drive and the motor After this external 24V...

Страница 34: ...One is for the incoming power wiring one is for the motor output wiring between the drive and the controlled motor and the third is for the control wiring Because the wiring from the drive to the moto...

Страница 35: ...Instruction Manual for fuse sizing Terminals 91 L1 92 L2 and 93 L3 are always used for incoming power 5 Wiring b Fuses 5 Wiring the Drive b Fuses In order to fulfill the requirements of Underwriters...

Страница 36: ...means that the capacitance between the cable and ground is increased A shorter distance is therefore needed for proper operation A disconnect switch between the drive and motor may be required to mee...

Страница 37: ...an external 24Vdc to terminals 35 24Vdc and 36 Com This keeps the control card active when power is removed from the input side of the drive This might be important in maintaining serial communicatio...

Страница 38: ...nd Loadsharing 5 Wiring the Drive e Dynamic Brake and Loadsharing On Standard with Brake SB units there is an extra terminal labeled R 81 and R 82 The dynamic brake resistor which is a separate device...

Страница 39: ...Control Wiring General Info Terminals 12 27 Control wires must be separate from Power 5 Wiring f Control Wiring 5 Wiring the Drive f Control Wiring This next part covers some general information about...

Страница 40: ...Do NOT connect 120 240 460 575 to Control terminals Use Relay 1 terminals 01 02 03 for pilot duty 48 to 240Vac 5 Wiring f Control Wiring 5 Wiring the Drive f Control Wiring The maximum voltage for the...

Страница 41: ...om the factory a jumper or a connection is required for operation It must be connected between terminals 12 24Vdc and 27 Digital Input which defaults to a coasting stop inverse command If terminal 27...

Страница 42: ...LT Which of the following is the best reason for this wait A The IGBTs need time to cool off B The motor coils need time to cool off C The DC Link Capacitors need time to cool off D The IGBTs need tim...

Страница 43: ...idential Property of Danfoss Drives A S Review 2 Which of the following reference materials should always be present A The Instructions Manual B The Terminal Connection Diagram C The Electric Schemati...

Страница 44: ...8072 A T6 CN1 ST R0 DL F00 A31 C1 3 What is the voltage range A 100 140Vac B 200 240Vac C 380 500Vac D 550 600Vac E 640 750Vac 4 What is the enclosure type A Chassis B NEMA 1 C NEMA 12 D NEMA 4 E NEM...

Страница 45: ...of Danfoss Drives A S Review 6 When installing a VLT to comply with UL cUL which of the following must always be connected to the incoming power A Isolation Transformer B Fuses C Circuit Breakers D 3...

Страница 46: ...al what is the difference between maximum temperature and average temperature A Maximum temperature is 3 C 5 F above average temperature B Maximum temperature is 3 C 5 F below average temperature C Ma...

Страница 47: ...he following is a correct statement for proper operation A The control wiring can be wired in the same conduit as incoming power B The control wiring can be wired in the same conduit as the motor outp...

Страница 48: ...nfidential Property of Danfoss Drives A S Review 9 Incoming Power is always wired to which of the following terminal numbers on a VLT A Terminals 18 19 and 20 B Terminals 35 36 and 20 C Terminals 91 9...

Страница 49: ...view 10 Which of the following statements is NOT part of the Pre Installation Check A Make a Visual inspection of the drive and its packaging B Insure VLT can handle maximum current of the motor C Rec...

Страница 50: ...llation 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 corre...

Страница 51: ...S This concludes this training module Please proceed to the next installation module which covers applications in more detail If you have any comments or questions please contact Technical Support Dan...

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