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Danfoss iC7 Series Installation Manual
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Danfoss iC7 Series Installation Manual

Danfoss iC7 Series Installation Manual

Air-cooled lcl filter
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Installation Guide
iC7 Series Air-cooled LCL Filter OF7Z3
1 Overview
LCL Filter
1.1
The LCL Filter is used as an input filter with AFE or grid converter modules in applications where regenerative or low-harmonic
functionality is required. The LCL Filter reduces switching noise, and ensures correct power quality and minimal interruption to the grid.
There are 3 electrical sizes of the filter: LCL10 (514 A), LCL11 (816 A), and LCL11W (820 A).
The filter sizes are available with protection ratings IP00 and IP54.
Contents of the Delivery
1.2
The LCL Filter consists of 2 parts. The LC Filter and L Filter are delivered on separate wooden pallets.
1
Figure 1: Items Included in the Delivery
1
LC Filter
3
AuxBus cable, 3 m (9.8 ft)
5
M5x10 screws, 8 pcs
2 Mechanical Installation
2.1
Safety Information
SHOCK HAZARD FROM THE COMPONENTS
The components of the drive are live when the drive is connected to mains.
Do not make changes in the AC drive when it is connected to mains.
Danfoss Drives Oy © 2024.11
2
2
4
  WARNING
3
4
5
L Filter
Bottom mounting bracket
AN447722806364en-000201 / 172K1109B |
1

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Summary of Contents for Danfoss iC7 Series

  • Page 1 Installation Guide iC7 Series Air-cooled LCL Filter OF7Z3 1 Overview LCL Filter The LCL Filter is used as an input filter with AFE or grid converter modules in applications where regenerative or low-harmonic functionality is required. The LCL Filter reduces switching noise, and ensures correct power quality and minimal interruption to the grid.
  • Page 2 Only qualified personnel are allowed to perform the installation described in this guide. Follow the instructions in this guide and relevant local regulations. Also read the instructions and safety information in the iC7 Series Air-cooled and Liquid-cooled System Modules Installation Safety Guide. Installation Requirements The products described in this guide have the protection rating IP00/UL Open Type.
  • Page 3 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Mechanical Installation Figure 2: Installing the L Filter The mounting holes at the back The mounting holes in the front Bottom mounting bracket Install the integration unit of the AFE module into the cabinet.
  • Page 4 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Mechanical Installation Figure 4: Installing the LC Filter The upper mounting holes in the front The lower mounting holes in the front The upper mounting holes at the back Push and slide the AFE module into the cabinet.
  • Page 5 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Mechanical Installation Mount the top front bracket. Attach the LC Filter and AFE module to the front brackets at the top and bottom. Cooling Requirements The maximum ambient operating temperature of the LCL Filter is 40 °C (104 °F), with derating up to 55 °C (131 °F).
  • Page 6 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Mechanical Installation Dimensions of the LCL Filter 2 x Ø9 (0.35) 5 x Ø5.5 (0.22) Ø13 Ø13 Ø25 (10.20) (0.51) (0.51) (0.98) (2.84) 3 x M8 (36.26) 1576 (62.05) (3.07) (3.90) (1.54)
  • Page 7 3.10 Wiring Diagrams. Cable Requirements For information about recommended cable types and required cable sizes, see the iC7 Series Air-cooled System Modules Design Guide. Grounding Ground the LCL Filter in accordance with applicable standards and directives. Danfoss Drives Oy © 2024.11...
  • Page 8 The front-end modules in the drive system must be equipped with fast-acting AC fuses to limit the damage of the drive system. Install AC fuses at the input terminals of the LCL Filter. The AC fuses are not included in the LCL Filter delivery. For the recommended fuse types and required fuse sizes, see the iC7 Series Air- cooled System Modules Installation Guide.
  • Page 9 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Electrical Installation Terminals Figure 9: Terminals of the LCL Filter Terminals between L Filter and LC Filter L Filter input terminals L1, L2, L3 LC Filter output terminals L1, L2, L3 Connecting the LCL Filter Fan Supply  ...
  • Page 10 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Electrical Installation Table 2: Connector X121 (continued) Item Value Conductor size maximum 10 mm /AWG8 Fine-stranded conductor ferrule maximum 6 mm Table 3: Cable Requirements Area Requirements Example wire Minimum 800 V DC voltage Leoni BETAtrans®...
  • Page 11 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Electrical Installation X121 Figure 11: Diagram of the LCL Filter Fan Supply AC fuses LCL Filter AFE module DC fuses Preparing the AuxBus Cable Cut the cable to the required length.
  • Page 12 For the drive to be able to protect the filters, AuxBus must be connected. For more information about AuxBus, see the iC7 Series Air-cooled System Modules Design Guide. Connect the thermocouple wire from the L Filter to terminal X205 on the AuxBus temperature measurement board of the LC Filter.
  • Page 13 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Electrical Installation Figure 14: Location of the X86 Terminal on the LCL Filter Control unit Control unit Optical fiber cable Star coupler board Optical fiber cable Optical fiber cable Optical fiber cable...
  • Page 14 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Electrical Installation Figure 16: Using the Cable Clamps Stripping length, 15 mm (0.59 in) Strain relief Grounding At the terminal X86 end of the cable, place the cable in a cable clamp for strain relief.
  • Page 15 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Electrical Installation DC+ DC- DC+ DC- Figure 18: Wiring Diagram, AFE Modules with Parallel Power Units and LCL Filters Common AC bus AC fuses (option) LCL Filters AFE modules DC fuses (option) Common DC bus Danfoss Drives Oy ©...
  • Page 16 These conditions can include, for example, extreme temperature, dust, high humidity, hours of use, corrosive environment, and loading. For operation in stressful conditions, Danfoss offers the DrivePro® Preventive Maintenance service. DrivePro® services extend the lifetime and increase the performance of the product with scheduled maintenance including customized part replacements. DrivePro® services are tailored to your application and operating conditions.
  • Page 17 Installation Guide | iC7 Series Air-cooled LCL Filter OF7Z3 Maintenance Table 5: Maintenance Schedule for Air-cooled Filters (continued) Component Inspection Preventive maintenance actions Service schedule interval Corrosive environ- 1 year – Conductive dust and aggressive gases, such as sulphide, chloride,...
  • Page 18 Danfoss reserves the right to alter its products without notice. This also applies to products ordered but not delivered provided that such alterations can be made without changes to form, fit or function of the product. All trademarks in this material are property of Danfoss A/S or Danfoss group companies.

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