MAKING MODERN LIVING POSSIBLE
Operating Instructions
VLT® Lift Drive LD 302
www.danfoss.com/drives
Contents |
VLT® Lift Drive LD 302 |
Contents
1 Introduction |
4 |
1.1 Purpose of the Manual |
4 |
1.2 Additional Resources |
4 |
1.3 Document and Software Version |
4 |
1.4 Intended Use |
4 |
1.5 Certifications |
4 |
1.6 Disposal Instruction |
4 |
2 Safety |
5 |
2.1 Qualified Personnel |
5 |
2.2 Safety Precautions |
5 |
3 Mechanical Installation |
6 |
3.1 Equipment Pre-installation Check List |
6 |
3.2 Unpacking |
6 |
3.3 Installation Environment |
6 |
3.3.1 Installation Site Check List |
6 |
3.4 Mounting |
6 |
3.4.1 Cooling |
6 |
3.4.2 Lifting |
7 |
3.4.3 Mounting |
7 |
4 Electrical Installation |
8 |
4.1 Safety instructions |
8 |
4.1.1 Requirements |
8 |
4.1.2 Cable Entries |
8 |
4.2 EMC Compliant Installation |
11 |
4.2.1 General Aspects of EMC Emissions |
11 |
4.2.2 EMC Immunity |
12 |
4.3 Harmonics |
14 |
4.4 Grounding |
15 |
4.4.1 Grounding Requirements |
15 |
4.4.1.1 Ground Leakage Current |
15 |
4.4.1.2 Grounding Using Screened Cable |
16 |
4.5 PELV - Protective Extra Low Voltage |
16 |
4.6 Wiring Schematic |
18 |
4.6.1 Operation with Motor Contactors |
18 |
4.6.2 Operation without Motor Contactors |
19 |
4.7 Motor Connection |
20 |
4.8 AC Mains Connection |
20 |
MG34X102 - Rev. 2013-12-04 |
1 |
Contents |
VLT® Lift Drive LD 302 |
4.9 Control Wiring |
20 |
4.9.1.1 Removing the Cover |
20 |
4.9.1.2 Control Terminal Types |
21 |
4.9.1.3 Relay Connection |
22 |
4.9.1.4 Wiring to Control Terminals |
23 |
4.9.1.5 Lift Controller MCO 361 Control Terminals |
23 |
4.9.1.6 Using Screened Control Cables |
24 |
4.9.1.7 Terminal 37, Safe Torque Off |
25 |
4.9.1.8 Lift Control without Motor Contactors |
26 |
4.10 Installation Check List |
27 |
5 Commissioning |
28 |
5.1 Safety Instructions |
28 |
5.1.1 Safety Inspection |
28 |
5.2 Applying Power to the Frequency Converter |
28 |
5.2.1 Applying Power Procedure |
28 |
5.3 Local Control Panel |
28 |
5.3.1 LCP Layout |
29 |
5.3.2 Setting LCP Display Values |
29 |
5.3.3 Display Menu Keys |
30 |
5.3.4 Navigation Keys |
30 |
5.3.5 Operation Keys |
31 |
5.3.6 Back-up and Copying Parameter Settings |
31 |
5.3.7 Recommended Initialisation |
31 |
5.3.8 Manual Initialisation |
32 |
6 Programming |
33 |
6.1 Basic Operational Programming |
33 |
6.2 Automatic Motor Adaptation |
33 |
6.3 Programming the Lift Application |
33 |
6.3.1 Start and Stop Sequences |
35 |
7 Functions |
37 |
7.1 Brake Functions |
37 |
7.1.1 Introduction |
37 |
7.1.1.1 Mechanical Holding Brake |
37 |
7.1.1.2 Dynamic Brake |
37 |
7.1.2 Brake Resistor Requirements |
37 |
7.1.2.1 Mechanical Brake Control |
38 |
7.1.3 Brake Resistor Cabling |
39 |
7.2 DCP Communication |
39 |
2 |
MG34X102 - Rev. 2013-12-04 |
Contents |
VLT® Lift Drive LD 302 |
8 Diagnostics and Troubleshooting |
40 |
8.1 Status Messages |
40 |
8.2 Warnings and Alarms |
40 |
8.3 Basic Troubleshooting |
47 |
9 Application Examples |
48 |
9.1 Main Contactors |
48 |
9.2 Operation with Absolute Encoder (SSI/EnDat) |
48 |
9.3 Check Encoder Rotation |
48 |
9.4 Emergency Operation UPS |
49 |
10 Special Conditions |
50 |
10.1 Special Conditions |
50 |
10.1.1 Extreme Running Conditions |
50 |
10.1.2 Motor Thermal Protection |
50 |
10.1.3 Derating |
51 |
11 Parameter Overview |
52 |
11.1 xx-** Active Parameters |
52 |
11.2 Parameters 0-** Operation and Display |
53 |
11.3 Parameters 1-** Load and Motor |
54 |
11.4 Parameters 4-** Limits/Warnings |
55 |
11.5 Parameters 14-** Special Functions |
56 |
11.6 Parameters 19-** Application Parameters |
56 |
11.7 Parameters 32-** Encoder |
66 |
12 Specifications |
67 |
12.1 Electrical Data |
67 |
12.2 Ambient Conditions |
70 |
12.3 Power Ratings, Weight and Dimensions |
70 |
12.4 Connection Tightening Torques |
73 |
12.5 Lift Controller MCO 361 Specifications |
74 |
12.6 Motor Type and Associated Motor Number |
76 |
12.6.1 Motor Type and Associated Motor Number Stored in Motor Database |
76 |
12.6.2 Motor Type and Associated Motor Number not Stored in Motor Database |
78 |
Index |
80 |
MG34X102 - Rev. 2013-12-04 |
3 |
Introduction VLT® Lift Drive LD 302
1 |
1 |
1 Introduction |
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1.1 Purpose of the Manual |
1.4 Intended Use |
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This manual targets |
The frequency converter is an electronic motor controller |
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intended for |
•system designers
•installers
•service technicians
It provides detailed information for the installation and start-up of the frequency converter. Chapter 3 Mechanical Installation provides requirements for mechanical and electrical installation, including
•input
•motor
•control and serial communications wiring
•control terminal functions
chapter 5 Commissioning provides detailed procedures for
•start-up
•basic operational programming
•functional testing
The remaining chapters provide information about
•user interface
•programming
•applications
•start-up troubleshooting
•specifications
1.2Additional Resources
Supplemental publications and manuals are available from Danfoss.
See www.danfoss.com/BusinessAreas/DrivesSolutions/ Documentations/Technical+Documentation.htm for listings.
1.3 Document and Software Version
This manual is regularly reviewed and updated. All suggestions for improvement are welcome. Table 1.1 shows the document version and the corresponding software version.
Edition |
Remarks |
Software |
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version |
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MG34X1 |
This is the first edition of this manual |
6.72 |
Table 1.1 Document and Software Versions
•regulation of motor speed in response to system feedback or to remote commands from external controllers. A power drive system consists of the frequency converter, the motor and equipment driven by the motor.
•system and motor status surveillance.
The frequency converter can also be used for motor protection.
Depending on configuration, the frequency converter can be used in standalone applications or form part of a larger appliance or installation.
The frequency converter is allowed for use in residential, industrial and commercial environments in accordance with local laws and standards.
NOTICE
In a residential environment this product can cause radio interference, in which case supplementary mitigation measures can be required.
Foreseeable misuse
Do not use the frequency converter in applications which are non-compliant with specified operating conditions and environments. Ensure compliance with the conditions specified in chapter 12 Specifications.
1.5Certifications
1.6Disposal Instruction
Do not dispose of equipment containing electrical components together with domestic waste.
Collect it separately in accordance with local and currently valid legislation.
Table 1.2 Disposal Instruction
4 |
MG34X102 - Rev. 2013-12-04 |
Safety |
VLT® Lift Drive LD 302 |
2 Safety
The following symbols are used in this document:
WARNING
Indicates a potentially hazardous situation which could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which could result in minor or moderate injury. It may also be used to alert against unsafe practices.
NOTICE
Indicates important information, including situations that may result in damage to equipment or property.
2.1 Qualified Personnel
Correct and reliable transport, storage, installation, operation and maintenance are required for the troublefree and safe operation of the frequency converter. Only qualified personnel is allowed to install or operate this equipment.
Qualified personnel is defined as trained staff, who are authorised to install, commission, and maintain equipment, systems and circuits in accordance with pertinent laws and regulations. Additionally, the personnel must be familiar with the instructions and safety measures described in this document.
2.2 Safety Precautions
WARNING
HIGH VOLTAGE
Frequency converters contain high voltage when connected to AC mains input power. Qualified personnel only should perform installation, start up, and maintenance. Failure to perform installation, start up, and maintenance by qualified personnel could result in death or serious injury.
2 2
WARNING
UNINTENDED START
When the frequency converter is connected to AC mains, the motor may start at any time. The frequency converter, motor, and any driven equipment must be in operational readiness. Failure to be in operational readiness when the frequency converter is connected to AC mains could result in death, serious injury, equipment, or property damage.
WARNING
DISCHARGE TIME
Frequency converters contain DC-link capacitors that can remain charged even when the frequency converter is not powered. To avoid electrical hazards, disconnect AC mains, any permanent magnet type motors, and any remote DC-link power supplies, including battery backups, UPS, and DC-link connections to other frequency converters. Wait for the capacitors to fully discharge before performing any service or repair work. The amount of wait time is listed in the Discharge Time table. Failure to wait the specified time after power has been removed before doing service or repair could result in death or serious injury.
Voltage [V] |
Minimum waiting time (minutes) |
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4 |
15 |
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380-400 |
0.25-7.5 kW |
11-75 kW |
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[0.34-10 hp] |
[15-100 hp] |
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High voltage may be present even when the warning LEDs are off!
Table 2.1 Discharge Time
MG34X102 - Rev. 2013-12-04 |
5 |
Mechanical Installation |
VLT® Lift Drive LD 302 |
3 Mechanical Installation
3.1 Equipment Pre-installation Check List
3 3 • Compare the model number of the unit on the nameplate to what was ordered to verify the proper equipment
•Ensure each of the following are rated for same voltage:
3.3 Installation Environment
3.3.1 Installation Site Check List
•The frequency converter relies on the ambient air for cooling. Observe the limitations on ambient temperature for optimal operation.
Mains (power)
Frequency converter
Motor
•Ensure that the frequency converter output current rating is equal to or greater than motor full load current for peak motor performance
Motor size and frequency converter power must match for proper overload protection
If frequency converter rating is less than motor, full motor output cannot be achieved
3.2 Unpacking
3.2.1 Items Supplied
Items supplied may vary according to product configuration.
•Make sure the items supplied and the information on the nameplate correspond to the order confirmation.
•Check the packaging and the frequency converter visually for damage caused by inappropriate handling during shipment. File any claim for damage with the carrier. Retain damaged parts for clarification.
NOTICE
Do not remove the nameplate from the frequency converter (loss of warranty).
3.2.2 Storage
Ensure that requirements for storage are fulfilled. Refer to chapter 12.2 Ambient Conditions for further details.
•Before mounting the frequency converter, ensure that the installation location has sufficient support strength
•Keep the frequency converter interior free from dust and dirt. Ensure that the components stay as clean as possible. In construction areas, provide a protective covering. Optional IP54 (NEMA 12) or IP66 (NEMA 4) enclosures may be necessary.
•Keep the manual, drawings, and diagrams accessible for detailed installation and operating instructions. It is important that the manual is available for equipment operators.
•Locate equipment as near to the motor as possible. Keep motor cables as short as possible. Check the motor characteristics for actual tolerances. Do not exceed
•300 m [1,000 ft] for unshielded motor cables
•150 m [500 ft] for screened cable.
•Consider derating for temperatures between 40 °C [104 °F] and 50 °C [122 °F] and elevation 1,000 m [3,300 ft] above sea level. See the equipment Design Guide for detailed information.
3.4Mounting
3.4.1 Cooling
Ensure that top and bottom clearance for air cooling is provided. See Illustration 3.1 for clearance requirements.
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MG34X102 - Rev. 2013-12-04 |
Mechanical Installation |
VLT® Lift Drive LD 302 |
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Illustration 3.1 Top and Bottom Cooling Clearance
Enclosure type |
A1-A5 |
B1-B4 |
C1, C3 |
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a/b [mm] |
100 |
200 |
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Table 3.1 Minimum Airflow Clearance Requirements
3.4.2 Lifting
•To determine a safe lifting method, check the weight of the unit
•Ensure that the lifting device is suitable for the task
•If necessary, plan for a hoist, crane, or forklift with the appropriate rating to move the unit
•For lifting, use hoist rings on the unit, when provided
3.4.3 Mounting
1.Ensure that the strength of the mounting location supports the unit weight. The frequency converter allows side-by-side installation.
2.Mount the unit vertically to a solid flat surface or to the optional back plate (see Illustration 3.2 and
Illustration 3.3).
3.Use the slotted mounting holes on the unit for wall mount, when provided.
<![endif]>130BA219.11
3 3
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Item Description
1 Back plate
Illustration 3.2 Proper Mounting with Back Plate
Install the back plate properly for required airflow to cool the unit.
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Item Description
1 Back plate
Illustration 3.3 Proper Mounting with Railings
NOTICE
Back plate is needed when mounted on railings.
NOTICE
Improper mounting can result in overheating and reduced performance.
MG34X102 - Rev. 2013-12-04 |
7 |
Electrical Installation |
VLT® Lift Drive LD 302 |
4 Electrical Installation
4.1 Safety instructions 4.1.1 Requirements
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4 4 |
WARNING |
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EQUIPMENT HAZARD! |
Rotating shafts and electrical equipment can be hazardous. All electrical work must conform to national and local electrical codes. Only trained and qualified personnel should install, start up, and maintain the equipment. Failure to follow these guidelines could result in death or serious injury.
NOTICE
WIRING ISOLATION!
Run input power, motor wiring and control wiring in 3 separate metallic conduits or use separated screened cable for high frequency noise isolation. Failure to isolate power, motor and control wiring could result in less than optimum frequency converter and associated equipment performance.
For safety, comply with the following requirements.
•Electronic controls equipment is connected to hazardous mains voltage. Take extreme care to protect against electrical hazards when applying power to the unit.
•Run motor cables from multiple frequency converters separately. Induced voltage from output motor cables that are run together can charge equipment capacitors even with the equipment turned off and locked out.
Overload and equipment protection
•The frequency converter provides overload protection for the motor (Class 20 motor protection). See chapter 10 Special Conditions for details.
•All frequency converters must be provided with short circuit and overcurrent protection. Input fusing is required to provide this protection, see Illustration 4.1. If not factory supplied, the installer must provide fuses as part of installation.
L1 |
L2 |
L3 |
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1Fuses
2Ground
Illustration 4.1 Frequency Converter Fuses
Wire Type and Ratings
•All wiring must comply with local and national regulations regarding cross section and ambient temperature requirements.
•Danfoss recommends that all power connections are made with a minimum 75 °C [167 °F] rated copper wire.
•See chapter 12.3 Power Ratings, Weight and Dimensions for recommended wire sizes.
4.1.2 Cable Entries
NOTICE
Other solutions are possible. Unused cable entries can be sealed with rubber grommets (for IP21).
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MG34X102 - Rev. 2013-12-04 |
9 |
Electrical Installation |
VLT® Lift Drive LD 302 |
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Control cable |
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Mains |
1 1/4 |
44.2 |
M40 |
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1 1/4 |
44.2 |
M40 |
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Brake/load sharing |
1 |
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M32 |
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Control cable |
3/4 |
28.4 |
M25 |
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1/2 |
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M20 |
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Knockout hole |
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Illustration 4.7 B2 (IP55)
[2] |
<![if ! IE]> <![endif]>130BB670.10 |
[4]
[3]
[5]
[1]
Item |
Recommended use |
Dimensions |
1 |
Mains |
M40 |
2 |
Motor |
M40 |
3 |
Brake/Load Sharing |
M32 |
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Control cable |
M25 |
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Control cable |
M20 |
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Illustration 4.8 B2 (IP55) Threaded Gland Holes
10 |
MG34X102 - Rev. 2013-12-04 |
Electrical Installation |
VLT® Lift Drive LD 302 |
4.2 EMC Compliant Installation
4.2.1 General Aspects of EMC Emissions
The frequency converter, motor cable and the motor generate airborne interference in the range 30 MHz to 1 GHz. Capacitive currents in the motor cable coupled with a high dU/dt from the motor voltage generate leakage currents.
Use screened motor cable to reduce radiated interference. Connect the motor cable screen to the frequency converter |
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enclosure as well as to the motor enclosure. Use integrated screen clamps to avoid twisted screen ends (pigtails). |
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To reduce the interference level from the entire system (unit + installation), make motor and brake cables as short as possible. Avoid placing cables with a sensitive signal level alongside motor and brake cables. Especially control electronics generate radio interference higher than 50 MHz (airborne).
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1Ground wire
2Screen
3AC mains supply
4Frequency converter
5Screened motor cable
6Motor
Table 4.1
Illustration 4.9 Situation that Generates Leakage Currents
Ensure that screen currents can be conveyed back to the frequency converter. Also, ensure good electrical contact from the mounting plate through the mounting screws to the frequency converter chassis.
NOTICE
When unscreened cables are used, some emission requirements are not complied with, although the immunity requirements are observed.
MG34X102 - Rev. 2013-12-04 |
11 |
Electrical Installation |
VLT® Lift Drive LD 302 |
4.2.2 EMC Immunity
All Danfoss frequency converters comply with the requirements for the industrial environment as well as home and office environments.
Immunity tests were performed in accordance with the following standards:
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EN 61000-4-2 (IEC 61000-4-2): Electrostatic discharges (ESD): Simulation of electrostatic discharges from human |
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EN 61000-4-3 (IEC 61000-4-3): Incoming electromagnetic field radiation, amplitude modulated simulation of the |
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effects of radar and radio communication equipment as well as mobile communications equipment. |
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EN 61000-4-4 (IEC 61000-4-4): Burst transients: Simulation of interference brought about by switching a contactor, |
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relay, or similar devices. |
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EN 61000-4-6 (IEC 61000-4-6): RF common mode: Simulation of the effect from radio-transmission equipment |
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joined by connection cables. |
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Voltage range: 380-400 V |
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Basic standard |
Burst |
Surge |
ESD |
Radiated electromagnetic |
RF common |
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IEC 61000-4-4 |
IEC 61000-4-5 |
IEC |
field |
mode voltage |
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61000-4-2 |
IEC 61000-4-3 |
IEC 61000-4-6 |
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Acceptance criterion |
B |
B |
B |
A |
A |
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Line |
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4 kV CM |
2 kV/2 Ω DM |
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10 VRMS |
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4 kV/12 Ω CM |
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Motor |
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4 kV CM |
4 kV/2 Ω 1) |
— |
— |
10 VRMS |
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Brake |
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4 kV CM |
4 kV/2 Ω1) |
— |
— |
10 VRMS |
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Load sharing |
4 kV CM |
4 kV/2 Ω 1) |
— |
— |
10 VRMS |
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Control wires |
2 kV CM |
2 kV/2 Ω1) |
— |
— |
10 VRMS |
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Standard bus |
2 kV CM |
2 kV/2 Ω1) |
— |
— |
10 VRMS |
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Relay wires |
2 kV CM |
2 kV/2 Ω 1) |
— |
— |
10 VRMS |
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Application and fieldbus |
2 kV CM |
2 kV/2 Ω 1) |
— |
— |
10 VRMS |
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options |
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LCP cable |
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2 kV CM |
2 kV/2 Ω 1) |
— |
— |
10 VRMS |
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External 24 V DC |
2 V CM |
0.5 kV/2 Ω DM |
— |
— |
10 VRMS |
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1 kV/12 Ω CM |
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Enclosure |
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8 kV AD |
10 V/m |
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6 kV CD |
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Table 4.2 EMC Immunity
1) Injection on cable screen AD: Air discharge
CD: Contact discharge CM: Common mode DM: Differential mode
EMC Test Results
The following test results have been obtained using a system with
•
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•
•
a frequency converter a screened cable
a control box with potentiometer a motor
12 |
MG34X102 - Rev. 2013-12-04 |
Electrical Installation |
VLT® Lift Drive LD 302 |
•a screened motor cable
RFI filter type |
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Conducted emission |
Radiated emission |
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Standards |
EN 55011 |
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Class B |
Class A |
Class A |
Class B |
Class A |
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and |
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Housing, |
Group 1 |
Group 2 |
Housing, |
Group 1 |
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requirements |
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trades and |
Industrial |
Industrial |
trades and |
Industrial |
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light |
environment |
environment |
light |
environment |
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industries |
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industries |
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EN/IEC 61800-3 |
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Category C2 |
Category C3 |
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Category C2 |
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First |
Second |
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First |
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environment, |
environment, |
environment, |
environment, |
environment, |
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home and |
home and |
industrial |
home and |
home and |
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office |
office |
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office |
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H1: RFI Class A1/B, Category 1/2 |
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LD 302 |
0-75 kW |
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IP20 |
50 m [164 ft] |
150 m [492 ft] |
150 m [492 ft] |
No |
Yes |
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[0-100 hp] |
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380-480 V |
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0-7.5 kW |
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IP55 |
50 m [164 ft] |
150 m [492 ft] |
150 m [492 ft] |
No |
Yes |
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[0-10 hp] |
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380-480 V |
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H2: RFI Class A2, Category 3 |
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LD 302 |
0-7.5 kW |
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IP20 |
No |
No |
5 m [16 ft] |
No |
No |
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[0-10 hp] |
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380-480 V |
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11-75 kW |
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IP20 |
No |
No |
25 m [82 ft] |
No |
No |
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[15-100 hp] |
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380-480 V |
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0-7.5 kW |
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IP55 |
No |
No |
5 m [16 ft] |
No |
No |
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[0-10 hp] |
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380-480 V |
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H3: RFI Class A1/B, Category 1/2 |
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LD 302 |
11-55 kW |
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IP55 |
50 m [164 ft] |
150 m [492 ft] |
150 m [492 ft] |
No |
Yes |
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[15-75 hp] |
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380-480 V |
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Table 4.3 EMC Test Results (Emission, Immunity)
H1, H2 or H3 is defined in the type code position 16-17 for EMC filters
H1 - Integrated EMC filter. Fulfils EN 55011 Class A1/B and EN/IEN 61800-3 Category 1/2
H2 - No additional EMC filter. Fulfils EN 55011 Class A2 and EN/IEC 61800-2 Category 3
H3 - Integrated EMC filter. Fulfils EN 55011 Class A1/B and EN/IEC 61800-3 Category 1/2.
MG34X102 - Rev. 2013-12-04 |
13 |
Electrical Installation |
VLT® Lift Drive LD 302 |
4.3 Harmonics
4.3.1General Aspects of Harmonics Emission
A frequency converter takes up a non-sinusoidal current from mains, which increases the input current IRMS. A nonsinusoidal current is transformed with a Fourier analysis and split into sine-wave currents with different frequencies,
4 4 that is, different harmonic currents In with 50 Hz basic frequency:
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I7 |
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250 |
350 |
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Table 4.4 Harmonic Currents
4.3.2 Harmonics Emission Requirements
Equipment connected to the public supply network
Options Definition
1IEC/EN 61000-3-2 Class A for 3-phase balanced equipment (for professional equipment only up to 1 kW total power).
2IEC/EN 61000-3-12 Equipment 16-75 A and professional equipment as from 1 kW up to 16 A phase current.
Table 4.5 Connected Equipment
4.3.3 Harmonics Test Results (Emission)
The harmonics do not affect the power consumption directly, but increase the heat losses in the installation (transformer, cables). So, in plants with a high percentage of rectifier load, maintain harmonic currents at a low level to avoid overload of the transformer and high temperature in the cables.
<![if ! IE]><![endif]>175HA034.10
Illustration 4.10 Harmonic Currents
NOTICE
Some of the harmonic currents might disturb communication equipment connected to the same transformer or cause resonance with power-factor correction batteries.
To ensure low harmonic currents, the frequency converter is equipped with intermediate circuit coils as standard. This normally reduces the input current IRMS by 40%.
The voltage distortion on the mains supply voltage depends on the size of the harmonic currents multiplied by the mains impedance for the frequency in question. The total voltage distortion THD is calculated based on the individual voltage harmonics using this formula:
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THD % = U |
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+ U |
7 |
+ ... + U |
N |
(UN% of U)
Power sizes up to PK75 in T2 and T4 comply with IEC/EN 61000-3-2 Class A. Power sizes from P1K1 and up to P18K in T2 and up to P90K in T4 comply with IEC/EN 61000-3-12, Table 4. Power sizes P110 - P450 in T4 also comply with IEC/EN 61000-3-12 even though not required because currents are above 75 A.
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I11 |
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Table 4.6 Harmonics Test Results (Emission) |
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If the short-circuit power of the supply Ssc is greater than or equal to:
SSC = 3 × RSCE × Umains × Iequ = 3 × 120 × 400 × Iequ
at the interface point between the user’s supply and the public system (Rsce).
It is the responsibility of the installer or user of the equipment to ensure that the equipment is connected only to a supply with a short-circuit power Ssc greater than or equal to what is specified above. If necessary, consult the distribution network operator.
Other power sizes can be connected to the public supply network by consultation with the distribution network operator.
Compliance with various system level guidelines: The harmonic current data in Table 4.6 are given in
accordance with IEC/EN61000-3-12 with reference to the
14 |
MG34X102 - Rev. 2013-12-04 |
Electrical Installation |
VLT® Lift Drive LD 302 |
Power Drive Systems product standard. The data may be used to calculate the harmonic currents' influence on the power supply system and to document compliance with relevant regional guidelines: IEEE 519 -1992; G5/4.
4.4 Grounding
4.4.1 Grounding Requirements
WARNING
GROUNDING HAZARD!
Ground the frequency converter in accordance with national and local electrical codes as well as instructions contained within these instructions. Ground currents are higher than 3.5 mA. Failure to ground frequency converter properly could result in death or serious injury.
•To ground electrical equipment properly, follow all local and national electrical codes
•Proper protective earthing for equipment with ground currents higher than 3.5 mA must be established, see chapter 4.4.1.1 Ground Leakage Current
•A dedicated ground wire is required for input power, motor power and control wiring
•Use the clamps provided with the equipment for proper ground connections
•Do not ground one frequency converter to another in a “daisy chain” fashion
•Keep the ground wire connections as short as possible
•Use of high-strand wire to reduce electrical noise is recommended
•Follow motor manufacturer wiring requirements
4.4.1.1 Ground Leakage Current
Follow national and local codes regarding protective earthing of equipment with a leakage current > 3.5 mA. Frequency converters generate a leakage current in the ground connection. A fault current in the frequency converter at the output power terminals might charge the filter capacitors and cause a transient ground current.
The ground leakage current depends on various system configurations including RFI filtering, screened motor cables, and frequency converter power.
Leakage current
a
<![if ! IE]><![endif]>130BB955.12
4 4
b
Motor cable length
Illustration 4.11 Cable Length and Power Size Influence on
Leakage Current. Pa > Pb.
Leakage current |
<![if ! IE]> <![endif]>130BB956.12 |
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THVD=0%
THVD=5%
Illustration 4.12 Line Distortion Influences Leakage Current
According to EN/IEC 61800 5 1, ground wire must be reinforced, if the leakage current exceeds 3.5 mA:
•Ground wire (terminal 95) of at least 10 mm2 [8 AWG]
•2 separate ground wires both complying with the dimensioning rules
See EN/IEC61800-5-1 and EN50178 for further information.
MG34X102 - Rev. 2013-12-04 |
15 |
Electrical Installation |
VLT® Lift Drive LD 302 |
Using RCDs
Where residual current devices (RCDs), also known as earth leakage circuit breakers (ELCBs), are used, comply with the following:
Only use RCDs of type B, capable of detecting AC and DC currents
To prevent faults due to transient ground currents, use RCDs with an inrush delay
4 4 Dimension RCDs according to the system configuration and environmental considerations
Leakage current |
RCD with low fcut- |
<![if ! IE]> <![endif]>130BB958.12 |
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Frequency |
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3rd harmonics |
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Illustration 4.13 Main Contributions to Leakage Current |
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Leakage current [mA] |
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<![if ! IE]> <![endif]>130BB957.11 |
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4.4.1.2 Grounding Using Screened Cable
Grounding clamps are provided for motor wiring (see
Illustration 4.15).
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<![if ! IE]> <![endif]>2 |
<![if ! IE]> <![endif]>130BA266.10 |
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<![if ! IE]> <![endif]>RELAY |
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<![if ! IE]> <![endif]>RELAY 1 |
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+DC |
BR- |
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MOTOR |
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- LC - |
Illustration 4.15 Grounding with Screened Cable
4.5 PELV - Protective Extra Low Voltage
WARNING
ELECTRICAL SHOCK HAZARD!
Protect against electrical shock by using electrical supply of the PELV type and the setting up the installation as described in local/national regulations on PELV supplies. Failure to protect against electrical shock can cause personal injury or death.
All control terminals and relay terminals 01-03/04-06 comply with PELV, except for grounded Delta leg above 400 V.
The electrical isolation complies with the requirements for higher isolation according to EN 61800-5-1.
To maintain PELV all connections made to the control terminals must be PELV, e.g. thermistor must be reinforced/double insulated.
Illustration 4.14 Influence of the Cut-off Frequency of the RCD
16 |
MG34X102 - Rev. 2013-12-04 |
Electrical Installation |
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VLT® Lift Drive LD 302 |
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3 |
<![if ! IE]> <![endif]>130BC968.11 |
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M |
7 |
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Item |
Description |
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Power supply (SMPS) incl. signal isolation of UDC, |
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Gate drive that runs the IGBTs (trigger transformers/opto- |
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couplers) |
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Current transducers |
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Opto-coupler, brake module |
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Internal inrush, RFI, and temperature measurement |
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Custom relays |
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Mechanical brake |
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Functional galvanic isolation for 24 V back-up option |
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Functional galvanic isolation for RS-485 standard bus |
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interface |
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Illustration 4.16 Galvanic Isolation
WARNING
Installation at high altitude:
380-400 V, enclosure types A, B and C: At altitudes above 2,000 m [6,600 ft], contact Danfoss regarding PELV.
MG34X102 - Rev. 2013-12-04 |
17 |
Electrical Installation |
VLT® Lift Drive LD 302 |
4.6 Wiring Schematic
4.6.1 Operation with Motor Contactors
Illustration 4.17 is valid when 19-86 Enable SC is set to [1] Simple control.
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Motor |
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Direction |
Drive |
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<![if ! IE]> <![endif]>130BD154.10 |
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L1 |
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Thermistor |
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up |
down |
enable |
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Speed |
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L2 |
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select |
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L3 |
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PE |
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K1 |
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Parameter |
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Encoder |
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Interface |
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K2 |
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Frequency Converter |
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X57 - Input |
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X55 - Encoder |
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81 82 PE |
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X59 - Output |
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X58 |
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Safety |
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K1 |
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K1 |
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Chain |
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K10.1 |
K2 |
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K2 |
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K12 |
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K10 |
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Brake |
U |
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W PE |
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K10.1 |
K10 |
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K12 |
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K1 |
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K2 |
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M |
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Resistor |
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N |
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3~ |
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Brake Relay |
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Brake |
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Brake |
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Motor |
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(max. 29 mA) |
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Contractor |
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Motor |
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Illustration 4.17 Wiring Schematic with Contactors
18 |
MG34X102 - Rev. 2013-12-04 |
Electrical Installation |
VLT® Lift Drive LD 302 |
4.6.2 Operation without Motor Contactors
Illustration 4.18 is valid when 19-86 Enable SC is set to [1] Simple control.
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Motor |
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Direction |
Drive |
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<![if ! IE]> <![endif]>130BD155.10 |
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L1 |
Thermistor |
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up |
down |
enable |
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Speed |
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L2 |
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L3 |
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4 |
4 |
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K1 |
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K1 |
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Encoder |
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19 - 50 |
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Interface |
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K2 |
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27 |
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10 1112 |
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Frequency Converter |
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X57 - Input |
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X55 - Encoder |
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81 82 PE |
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98 99 |
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X59 - Output |
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X58 |
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W PE |
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K10.1 |
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K10.1 |
K10 |
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Brake |
Motor |
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Resistor |
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N |
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Brake Relay |
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Brake |
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Brake |
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Contractor |
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Illustration 4.18 Wiring Schematic without Contactors
MG34X102 - Rev. 2013-12-04 |
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Electrical Installation |
VLT® Lift Drive LD 302 |
4.7 Motor Connection
WARNING
INDUCED VOLTAGE!
Run output motor cables from multiple frequency converters separately. Induced voltage from output motor cables that are run together can charge equipment capacitors even with the equipment turned
4 4 off and locked out. Failure to run output motor cables separately could result in death or serious injury.
•For maximum cable sizes and length, see
chapter 12.3 Power Ratings, Weight and Dimensions
•Comply with local and national electrical codes for cable sizes
•Do not install power factor correction capacitors between the frequency converter and the motor
•Do not wire a starting or pole-changing device between the frequency converter and the motor
1.Connect the 3-phase motor wiring to terminals 96 (U), 97 (V), and 98 (W).
2.Ground the cable in accordance with grounding instructions provided.
3.Torque terminals in accordance with the information provided in chapter 12.4 Connection Tightening Torques.
4.Follow motor manufacturer wiring requirements.
Illustration 4.15 represents mains input, motor, and grounding for basic frequency converters. Actual configurations vary with unit types and optional equipment.
4.8AC Mains Connection
•Size wiring based on the input current of the frequency converter. For maximum wire sizes, see chapter 12.3 Power Ratings, Weight and Dimensions.
•Comply with local and national electrical codes for cable sizes.
•Connect 3-phase AC input power wiring to terminals L1, L2, and L3 (see Illustration 4.15).
•Depending on the configuration of the equipment, input power is connected to the mains input terminals or the input disconnect.
•Ground the cable in accordance with grounding instructions provided in chapter 4.4.1 Grounding Requirements
•All frequency converters may be used with an isolated input source as well as with ground reference power lines. When supplied from an isolated mains source (IT mains or floating delta)
or TT/TN-S mains with a grounded leg (grounded delta), set 14-50 RFI Filter to OFF. When off, the internal RFI filter capacitors between the chassis and the intermediate circuit are isolated. This isolation prevents damage to the intermediate circuit and reduces ground capacity currents in accordance with IEC 61800-3.
4.9Control Wiring
•Isolate control wiring from high-power components in the frequency converter.
•If the frequency converter is connected to a thermistor, for PELV isolation, optional thermistor control wiring must be reinforced/double insulated. A 24 V DC supply voltage is recommended.
4.9.1.1 Removing the Cover
•Remove cover plate with a screw driver. See
Illustration 4.19.
•Or remove front cover by loosening attaching screws. See Illustration 4.20.
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Illustration 4.19 Control Wiring Access for Enclosure Types A2, A3, B3, B4, C3 and C4
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Electrical Installation |
VLT® Lift Drive LD 302 |
<![endif]>130BT334.10
Illustration 4.20 Control Wiring Access for Enclosure Types A4, A5, B1, B2, C1 and C2
Enclosure types A2 and A3
Encoder and I/O terminal are located behind the C option terminal cover, see Illustration 4.21.
The lift controller bus terminals and debug terminals (RS-485) are on the top of the C-option cover. If these connections are used, cut out the plastic parts above the connectors and mount the cable relief.
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Illustration 4.21 Location of Encoder and I/O Terminals
Enclosure types A5, B1 and B2
All MCO 361 terminals are located next to the control card. To get access, remove the front cover, see Illustration 4.20.
See Table 4.7 before tightening the covers.
Enclosure type |
IP20 |
IP55 |
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A4/A5 |
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2/1.5 |
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B1 |
- |
2.2/1.6 |
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B2 |
- |
2.2/1.6 |
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C1 |
- |
2.2/1.6 |
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C2 |
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2.2/1.6 |
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Table 4.7 Tightening Torques for Covers [Nm]/[lb-ft]
4.9.1.2 Control Terminal Types
Illustration 4.22 shows the removable frequency converter connectors.
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Illustration 4.22 Control Terminal Locations
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61 68 |
69 |
39 42 |
50 53 54 55 |
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Illustration 4.23 Terminal Numbers
•Connector 1, terminals 12-37
•Connector 2, terminals 61, 68, 69
•Connector 3, terminals 39-55
•Connector 4, USB port for use with the MCT 10 Set-up Software
•Also provided are 2 Form C relay outputs. Location depends upon the frequency converter configuration and size.
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Electrical Installation |
VLT® Lift Drive LD 302 |
4.9.1.3 Relay Connection
To set relay output, see parameter group 5-4* Relays.
No. |
01-02 |
make (normally open) |
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01-03 |
break (normally closed) |
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04-05 |
make (normally open) |
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04-06 |
break (normally closed) |
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4 |
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Table 4.8 Relay Connections |
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Relay1 |
36 35
Illustration 4.24 Terminals for Relay Connection (Enclosure Types A1, A2 and A3).
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RELAY |
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02 |
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RELAY |
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50 |
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Illustration 4.25 Terminals for Relay Connection (Enclosure Types A5, B1 and B2).
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Illustration 4.26 Terminals for Relay Connection (Enclosure Types C1 and C2).
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MG34X102 - Rev. 2013-12-04 |
Electrical Installation |
VLT® Lift Drive LD 302 |
4.9.1.4 Wiring to Control Terminals
Control terminal connectors can be unplugged from the frequency converter for ease of installation, as shown in
Illustration 4.22.
1.Open the contact by inserting a small screwdriver into the slot above or below the contact, as shown in Illustration 4.27.
2.Insert the bared control wire into the contact.
3.To fasten the control wire into the contact, remove the screwdriver.
4.Ensure that the contact is not loose. Loose control wiring can cause equipment faults or less than optimal operation.
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Illustration 4.27 Connecting Control Wiring
See chapter 12.3 Power Ratings, Weight and Dimensions for control terminal wiring sizes.
See chapter 4.7 Motor Connection for typical control wiring connections.
4.9.1.5 Lift Controller MCO 361 Control
Terminals
2 |
X62 |
X60 |
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X56
X57
X58
X59
Item |
Description |
Item |
Description |
1 |
Terminal block 1 |
X58 |
24 V DC supply |
2 |
Terminal block 2 |
X59 |
Digital outputs |
X55 |
Encoder 2 |
X62 |
Not used |
X56 |
Not used |
X60 |
DCP connector |
X57 |
Digital inputs |
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Illustration 4.28 Location of Terminal Blocks on MCO 361
MCO control terminals are plug connectors with screw terminals.
X55 = Encoder
X56 = Not used
X57 = Digital inputs
X58 = 24 V DC supply
X59 = Digital outputs
X62 = Not used
X60 = DCP connector
Terminal block 1 is used with bookstyle and terminal block 2 with compact enclosure types.
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