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Danfoss VLT 2881 User Manual

Danfoss VLT 2881
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Electrical installation
See also the section Brake Connection.
VLT 2803-2815 200-240 V, 2805-2815 380-480 V
VLT 2822 200-240 V, 2822-2840 380-480 V
VLT
®
2800 Series
MG.27.A2.02 - VLT
®
is a registered Danfoss trademark 65
Installation
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Danfoss VLT 2881 Specifications

General IconGeneral
BrandDanfoss
ModelVLT 2881
CategoryDC Drives
LanguageEnglish

Summary

Quick Setup

General warning

General safety warning related to the unit's operation.

Mechanical Installation

Guidelines for physical installation and mounting of the frequency converter.

Electrical Installation, power

Instructions for connecting power supply to the frequency converter.

Electrical Installation, control cables

Procedures for connecting control cables to the frequency converter.

Programming

Initial steps for programming basic motor parameters.

Introduction to VLT 2800

High voltage warning

Alerts users to the dangers of high voltage when the unit is connected to mains.

These rules concern your safety

Outlines essential safety rules for handling and installation of the unit.

Warning against unintended start

Specific warnings about preventing accidental motor starts.

Control unit

Control keys

Description of the function and operation of control panel keys.

Operation & Display

Load and Motor

100 Configuration

Selecting the frequency converter's configuration for the application.

101 Torque characteristic

Defining the U/f ratio adaptation to the load's torque characteristic.

References & Limits

201 Output frequency low limit, fMIN

Setting the minimum motor frequency limit for operation.

202 Output frequency high limit, fMAX

Setting the maximum motor frequency limit for operation.

Inputs and outputs

Digital inputs

Mapping functions to digital input terminals for control.

Special functions

400 Brake function

Selecting the brake function type: resistor, AC brake, or load sharing.

405 Reset function

Configuring manual or automatic reset after a trip.

409 Trip delay overcurrent, ILIM

Setting the time before disconnection upon reaching current limit.

Enhanced Sleep Mode

Dry Run Detection

Feature to stop the pump in case of dry run, protecting motor and pump.

Installation

Mechanical dimensions

Drawings showing the physical dimensions of the frequency converter units.

Mechanical installation

Requirements for mounting the frequency converter for proper cooling.

General information about electrical installation

General guidelines for safe and compliant electrical installation.

EMC-correct electrical installation

Key points for ensuring electromagnetic compatibility in installation.

Connection examples

Display readout

Warnings/alarm messages

Special conditions

Aggressive environments

Precautions for installing the converter in environments with liquids, particles, or gases.

Derating for ambient temperature

Adjustments needed for rated output current at high ambient temperatures.

General technical data

Safeguards

Electronic thermal motor protection against overload

Protection against motor overload using electronic thermal relay.

Temperature monitoring of the power module

Monitoring power module temperature to prevent overheating.

Protection against short-circuits on motor terminals

Protection against short-circuits on motor output terminals.

Protection if a mains phase is missing

How the converter protects against missing mains phases.

Monitoring of the intermediate circuit voltage

Monitoring intermediate circuit voltage for over/under voltage protection.

Protection against earth fault on motor terminals

Protection against earth faults on motor output terminals.

Technical data, mains supply 1 x 220 - 240 V/3 x 200-240V

Technical data, mains supply 3 x 380 - 480 V

Parameter list with factory settings

200 Output frequency range

200 Output frequency range

Selecting motor direction and maximum output frequency.

215 Preset reference 1 (PRESET REF. 1)

221 Current limit, I LIM

Setting the maximum output current to protect the system.