Danfoss Finger Guards Installation guide

Installation Instructions

Finger Guards

VLT® Soft Starter MCD 200/MCD 500

1 Product Overview

These instructions provide information about installation of finger guard kits. The instructions are targeted at users already familiar with the VLT® Soft Starters MCD 500, or VLT® Compact Starters MCD 200/202. Read the instructions before installation and ensure that instructions for safe installation are observed.

Additional resources

Further manuals and instructions are available for download at vlt-drives.danfoss.com/Support/Technical-Documentation/.

2 Items Supplied

The finger guard is available in different kits depending on model and enclosure size. For a list of all available kit part numbers, refer to chapter 4.5 Packing List.

3 Safety Instructions

Finger guards fit over the soft starter power terminals to increase IP rating and prevent accidental contact with live terminals.

WARNING

ELECTRICAL SHOCK HAZARD

VLT® Soft Starters contain dangerous voltages when connected to mains voltage.

Models MCD5-0360C ~ MCD5-1600C: The bus bar and heat sink are live while the unit operates (starts, runs, or stops). If the soft starter is installed without a main contactor, the bus bar and heat sink are live whenever mains voltage is connected. This is also the case when the soft starter is ready or tripped.

Improper installation of the motor or the soft starter, and installing or servicing with power connected, can cause death, serious injury, or equipment failure.

To avoid death, serious injury, or equipment failure:

•

Only use qualified electricians for carrying out the electrical installation.

Disconnect the soft starter from all power sources before installation or service.

Fit finger guards to all terminals, even if no cable is connected.

Treat the bus bar and heat sink as live whenever the unit has mains voltage connected. Also take this precaution when the soft starter is tripped or waiting for a command.

•Follow the guidelines in these instructions and local electrical safety codes.

MI17A602

Finger Guards

Installation Instructions VLT® Soft Starter MCD 200/MCD 500

4 Installation

4.1IP20 Protection for MCD 200, MCD5-0131B ~ MCD5-0215B, and MCD5-0245C

MCD 200 and MCD 500 (enclosure sizes G2 and G3C) models use rubber finger guards. Rubber finger guards provide IP20 protection when used with cable of diameter 22 mm or greater.

Installation

1.Place 3 finger guards side by side in 1 retaining bracket. Align the assembly so that the screw holes in the bracket match the screw holes in the soft starter.

MCD 200 only: Remove the 2 top screws from the casing around the power terminals.

MCD 500 G3C enclosure size models only: Fit the finger guard base chassis to the MCD 500 enclosure first before installing rubber finger guards.

2.Feed each power cable through the narrow end of each finger guard. Connect the cables to the appropriate terminals on the soft starter.

3.If the cables do not fit through the finger guards, shorten the finger guards at the narrow end to make a bigger opening.

4.Screw the retaining bracket to the soft starter.

MCD 200 only: Use the screws from step 1 to attach the retaining bracket to the soft starter casing. MCD 500 G3C enclosure size models only: Fit the

finger guard cover over the finger guard base chassis to complete the arrangement.

5.Repeat steps 1–4 for the other set of terminals.

Illustration 4.1 Finger Guard Installation for MCD 200

Illustration 4.2 Finger Guard Installation for MCD 500 G2 Enclosure Size

1Screws

2 Retaining bracket

3Finger guards

Table 4.1 Legend to Illustration 4.1 and Illustration 4.2

1Screws

2 Retaining bracket

3Finger guards

4 Finger guard base chassis

5Top cover

Illustration 4.3 Finger Guard Installation for MCD 500 G3C Enclosure Size

MI17A602

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