Danfoss MCB 101 Installation guide

Installation Guide

VLT® General Purpose I/O MCB 101

VLT® AutomationDrive FC 361

1 Overview

1.1 Introduction

This instruction describes the VLT® General Purpose I/O MCB 101 for use in the VLT® AutomationDrive FC 361, expanding the number
of inputs/outputs in the drive.

The VLT® General Purpose I/O MCB 101 includes 3 digital inputs, 2 analog inputs, 2 digital outputs, and 1 analog output.

1.2 Items Supplied

• VLT® General Purpose I/O MCB 101.

Danfoss A/S © 2018.10

AN274236124990en-000101 / 130R0857 | 1

Installation Guide | VLT® General Purpose I/O MCB 101

2 Safety

2.1 Safety Precautions

WARNING

DISCHARGE TIME

The drive contains DC-link capacitors, which can remain charged even when the drive is not powered. High voltage can be
present even when the warning indicator lights are off.

Failure to wait the specified time after power has been removed before performing service or repair work could result in death
or serious injury.

Stop the motor.

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Disconnect AC mains, permanent magnet type motors, and remote DC-link supplies, including battery back-ups, UPS, and

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DC-link connections to other drives.

Wait for the capacitors to discharge fully. The minimum waiting time is specified in table Discharge time and is also visible

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on the nameplate on top of the drive.

Before performing any service or repair work, use an appropriate voltage measuring device to make sure that the capacitors

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are fully discharged.

Safety

Table 1: Discharge Time

Voltage [V] Power range [kW (hp)] Minimum waiting time (minutes)

380–480 90–315 kW (125–450 hp) 20

2 | Danfoss A/S © 2018.10

AN274236124990en-000101 / 130R0857