Danfoss MI75A102 VLT One Gear Drive Extension Box Installation Guide

June 1, 2024
Danfoss

Danfoss MI75A102 VLT One Gear Drive Extension Box

Danfoss MI75A102 VLT One Gear Drive Extension Box 

Safety Warnings

Purpose of this Installation Guide

The purpose of this installation guide is to describe the installation of the VLT® OneGearDrive ExtensionBox.

NOTICE

The information is limited to that required for qualified personnel in normal working situations. Contact Danfoss for further assistance.

The full operating instructions with more detailed information are available on the Danfoss website: vltdrives.danfoss.com/Support/Technical- Documentation/

Compliance with the information in this installation guide is a prerequisite for:

  • Trouble-free operation.
  • Recognition of product liability claims.

Therefore, read this manual before working on or with the OneGearDrive.

VLT® is a registered trademark.

Safety Symbols

The following symbols are used in this manual:

WARNING

Indicates a potentially hazardous situation that could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation that could result in minor or moderate injury. It can also be used to alert against unsafe practices.

NOTICE

Indicates important information, including situations that can result in damage to equipment or property.

Intended Use

The OneGearDrive is intended for commercial installations unless otherwise expressly agreed. It complies with the standards of the series EN 60034/DIN VDE 0530. Use in a potentially explosive atmosphere is forbidden if not expressly intended for this purpose.

The OneGearDrive is designed for ambient temperatures from –20 ˚C to 40 ˚C and for installation heights up to 1000 m above sea level.

Danfoss assumes no responsibility of any sort for damage attributable to improper use.

CAUTION

Low voltage machines are components for installation in machines in the sense of the machinery directive 2006/95/EC.

  • Do not use the machine until conformity of the final product with this directive is established (refer to EN 60204-01).

Qualified Personnel

All necessary work on electric drive units must only be performed by adequately qualified personnel (for example, electrical engineers as specified in draft EN 50 110-1/DIN VDE 0105), who have the operating instructions provided and other product documentation available during any corresponding work, and who are obliged to abide by the instructions contained therein. Qualified personnel are persons who are authorised due to training, experience, and instruction, as well as their knowledge of relevant standards, rules, accident-prevention regulations, and operating conditions.

Safety Precautions

WARNING

HIGH VOLTAGE

High voltage, which can lead to death or serious injury, is present on the connectors.

  • Before working on the power connectors (disconnecting or connecting the cable to the OneGearDrive), disconnect the supply to the frequency converter and wait for the discharge time to elapse (see the frequency converter operating instructions).
  • Installation, start-up, maintenance, and decommissioning must only be performed by qualified personnel.

Service and Support

Contact the local service representative for service and support: vlt- drives.danfoss.com/Support/Service/

Installation

Items Supplied

  • VLT® OneGearDrive ExtensionBox
  • Hollow shaft cover
  • Accessory bag
    • Retaining ring
    • Disc
    • 3 screws for hollow shaft cover (M12 x 30)
    • 3 plastic discs
    • Plastic cap
  • Adapter flange kit
    • Adapter flange
    • 6 adapter screws (M10 x 30)
    • 6 washers
    • 6 adapter screws (M12 x 25)
  • Torque arm set
    • Torque arm
    • Mounting set
    • 6 torque arm screws (M12 x 30)

Mounting

The ExtensionBox can only be adapted to 40 mm conveyor shafts and OneGearDrives with a 40 mm hollow shaft.

The minimum shaft length is 130 mm and the maximum shaft length is 150 mm.

All other specifications can be found in chapter Assembly Kit in the VLT® OneGearDrive Operating Instructions.

Torque Arm

Installation

1 Torque arm fastening set
2 Customer support frame

Illustration 2.1 ExtensionBox with Torque Arm and OneGearDrive

Take the dimensions from chapter 3.2.3 Torque Arm for Extension Box to determine the position of the fastening set. Also see chapter 2.2.3 VLT® OneGearDrive for optional mounting positions.

Assemble the torque arm as shown in Illustration 2.2.

Position Quantity Item Comments
1 1 Torque arm
2 6 Torque arm screw DIN 6921, M12 x 30, tightening torque: 35 Nm
3 1 Screw ISO 4017, M12 x 90
4 2 Washer DIN 9021, A13
5 1 Damper
6 1 Washer ISO 7090, M30
7 Customer support frame
8 1 Hexagon nut DIN 985, M12, tightening torque: 43 Nm

Illustration 2.2 Assembly View of the Extension Box with Torque Arm

Extension Box

  1. Grease the conveyor shaft.

  2. Mount the Extension Box to the conveyor shaft and fix it with the delivered retaining ring and disc.
    NOTICE
    The screw [3] is not supplied and depends on the conveyor shaft length. Refer to the chapter Assembly Kit in the VLT® OneGearDrive Operating Instructions for further information.

  3. Assemble the Extension Box in 30° steps (see chapter 2.2.3 VLT® OneGearDrive).

  4. Close the hollow shafts with the cover (see Illustration 2.4).

VLT® OneGearDrive

  1. Assemble the adapter flange to the OneGearDrive as shown in Illustration 2.3.
    NOTICE
    Table 2.1 shows the possible adapter flange positions for the various Extension Box mounting positions. Also use this table for mirror inverted mounting positions.

Extension Box mounting position| OneGearDrive mounting position| Adapter flange screw positions
---|---|---
Installation| | Installation
Installation| Installation
Installation| Installation| Installation
Installation|

Table 2.1 Possible Adapter Flange Positions

  1. Tighten all 6 screws as shown in Illustration 2.3.
  2. Grease the Extension Box shaft.
  3. Mount the OneGearDrive to the Extension Box shaft as shown in Illustration 2.4.
    Installation Position| Quantity| Item| Comments
    ---|---|---|---
    1| 1| Adapter| –
    2| 6| Washer| DIN 125, A10.5
    3| 6| Adapter screw| DIN 912, M10 x 30, tightening torque:

20 Nm

Illustration 2.3 Assembly of the Adapter Flange to the OneGearDrive
Installation

Position Quantity Item Comments
1 1 Eyebolt DIN 580, C15, M12
2 1 Plastic cap
3 1 Hollow shaft cover with seal
4 3 Cover screw DIN 6921, M12 x 30, tightening torque: 6 Nm
5 1 Adapter flange

(mounted to OneGearDrive)

| –

Illustration 2.4 Assembly of the Adapter Flange to the Extension Box

  1. Fasten the adapter flange [5] with the adapter screws (supplied).
  2. Remove the eye bolt [1] from the Extension Box and the OneGearDrive.
  3. Fit the plastic cap [2] (supplied) to close the hole on the ExtensionBox.
  4. Fit the hollow shaft cover [3] to the Extension Box.
    Refer to the VLT® OneGearDrive Operating Instructions for further information.

Specifications

General Specifications and Environmental Conditions

Ratio i 3.11
Protection rating IP54
MLT [Nm] 0–850
nLT [RPM] 0–31
Weight [kg] 44

Table 3.1 General Specifications and Environmental Conditions

Dimensions

Extension Box

All dimensions are in mm (inch). 380350 182
Specifications

Illustration 3.1 ExtensionBox Dimensions

Adapter Flange

All dimensions are in mm (inch).
Specifications

Torque Arm for ExtensionBox

All dimensions are in mm (inch).
Specifications

Illustration 3.3 Torque Arm Dimensions

Customer Support

Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products already on order provided that such alterations can be made without sub sequential changes being necessary in specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

Danfoss A/S
Ulsnaes 1
DK-6300 Graasten
vlt-drives.danfoss.com

References

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