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Inovance MDBUN-60-5T - User Manual

Inovance MDBUN-60-5T
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Inovance MDBUN Series Braking Unit User Manual
Page 1 of 24
Preface
Thank you for purchasing Inovance MDBUN series braking unit.
Inovance MDBUN series braking unit applies to the applications where an AC drive or
servo drive (hereinafter referred to as "drive") needs to perform deceleration, positioning
or braking operation. When the drive performs braking, kinetic energy is converted to
electric energy which is fed back to the drive due to the mechanical inertia of the load.
This will cause rising of the DC bus voltage of the drive. Therefore, a braking unit is
required to ensure normal running of the drive. The regenerative energy is consumed by
the braking resistor, preventing the drive from stopping or even being damaged due to
overvoltage protection.
Inovance MDBUN series braking unit provides full protection functions, such as
overcurrent, overheat, and braking unit open-circuit and short-circuit protection. It
supports the setting of parameters including braking start/stop voltage, and braking rate.
Multiple braking units can be deployed in master/slave mode to meet the braking
requirements of high power drive.
Inovance MDBUN braking unit also applies to large-inertia applications that require
sudden stop, for example, such as elevators, textile machines, paper making machines,
centrifuges, wire drawing machines, winding machines, proportional linkage systems, and
crown blocks.
Before performing installation, wiring, operation, maintenance, and inspection, read and
understand this manual thoroughly and follow the instructions. Failure to observe the
instructions may result in personal injury or even death.
Note
The drawings in this manual are sometimes shown without cover or protective guard.
Remember to install the cover or protective guard as specified first, and then perform
operations in accordance with the instructions.
The drawings in this manual are shown for description only and may not match the
product that you have purchased.
The instructions are subject to change due to product upgrade, specification
modification, as well as the efforts to increase the accuracy and convenience of the
manual
Contact the regional agent or customer service center of Inovance if the manual
delivered is lost or damaged.
Contact the customer service center of Inovance if you have problems during the use.

Table of Contents

Questions and Answers

  • S
    schavezAug 6, 2025
    What to do if Inovance MDBUN-60-5T shows hardware overcurrent?
    • T
      Thomas HendrixAug 6, 2025
      If your Inovance Industrial Equipment is showing a hardware overcurrent error, it could be due to several reasons. First, check for any short circuits or abnormalities in the external circuit. If found, stop the equipment and reset or power cycle the braking unit. Another cause might be a sudden or abnormal change in feedback energy, so try to reduce these sudden changes. Also, the braking unit's power could be insufficient; in that case, select a braking unit with higher power. Finally, the braking resistor might have too small resistance; select a proper braking resistor.
  • S
    Sarah JacksonAug 9, 2025
    Why is my Inovance Industrial Equipment overheating?
    • J
      Jessica KimAug 9, 2025
      If your Inovance Industrial Equipment is overheating, start by checking the air filter for blockages and ensure the fan is functioning correctly; clear the air filter or replace the fan if needed. Next, verify that the fan's power cable is securely inserted and undamaged. Also, consider whether the ambient temperature is too high and take steps to reduce it. If the power of the braking unit is too small, contact technical support engineers of Inovance.
  • L
    leachchaseAug 13, 2025
    What causes overvoltage in Inovance MDBUN-60-5T?
    • C
      Carmen RodriguezAug 13, 2025
      If your Inovance Industrial Equipment is showing an overvoltage error, it could be due to an incorrectly set input voltage class of the adaptable drive; correct it. Also, check the input feedback energy in case the feedback energy becomes abnormal. Finally, the braking unit might have insufficient capacity, so select a braking unit of higher power. If the problem persists, contact technical support engineers of Inovance.
  • H
    Heather JamesAug 18, 2025
    What to do for braking resistor open-circuit protection in Inovance MDBUN-60-5T?
    • J
      Joshua WestAug 19, 2025
      If you encounter a braking resistor open-circuit protection issue with your Inovance Industrial Equipment, first verify that the braking resistor is correctly connected and functioning normally; replace it if burnt out. Also, check the IGBT to ensure it is working correctly. If the problem persists, contact technical support engineers of Inovance.
  • D
    david63Aug 22, 2025
    How to troubleshoot braking resistor short-circuit in Inovance MDBUN-60-5T?
    • R
      Rebecca SalinasAug 22, 2025
      If your Inovance Industrial Equipment indicates a braking resistor short-circuit, check the braking resistor and its wiring to ensure they are normal. If the problem persists, contact technical support engineers of Inovance.
  • A
    Ann DavidsonAug 27, 2025
    What causes IGBT direct break-over in Inovance MDBUN-60-5T Industrial Equipment?
    • J
      Johnny McgrathAug 27, 2025
      If your Inovance Industrial Equipment shows an IGBT direct break-over error, it means the IGBT module is damaged. Replace the braking unit. If the problem persists, contact technical support engineers of Inovance.
  • O
    obriensteveAug 31, 2025
    What does reference source fault mean for Inovance MDBUN-60-5T?
    • S
      Scott ScottAug 31, 2025
      If your Inovance Industrial Equipment is showing a reference source fault, this indicates that the reference source for analog sampling is faulty. Replace the braking unit. If the problem persists, contact technical support engineers of Inovance.

Summary

Preface

Chapter 1 Safety Information

Chapter 2 Product Information

Product Appearance and Specifications

Details the product's appearance, designation rules, and technical specifications.

Working Principle and Load Curves

Explains the operational principle and load characteristics of the braking unit.

Chapter 3 Mechanical and Electrical Installation

Installation Environment and Dimensions

Covers installation environment requirements, dimensions, and clearance needs for the braking unit.

Electrical Installation and Wiring

Details electrical installation, terminal descriptions, and recommended wiring methods for the braking unit.

Chapter 4 Operation and Display

Front Panel Operation

Describes the indicators and controls on the front panel of the braking unit.

External Operation Panel

Explains the use, diagram, and components of the optional external operation panel.

Function Code Management

Guides on viewing, modifying, and setting function codes and operational status parameters.

Chapter 5 Function Code Table

Group F0 Function Codes

Lists function codes for basic operation, configuration, and master/slave selection.

Group P2 Function Codes

Details function codes for fault records, status parameters, and operational time tracking.

Chapter 6 Troubleshooting

Chapter 7 Selection of Braking Unit and Braking Resistor

Braking Unit Selection

Provides guidelines for selecting the appropriate braking unit based on drive requirements.

Braking Resistor Selection

Explains how to calculate and select the correct braking resistor for the application.

Chapter 7 Repair and Maintenance

Routine Maintenance and Inspection

Outlines regular maintenance tasks and periodic inspections to ensure the braking unit's performance.

Parts, Storage, and Warranty

Covers replacement of vulnerable parts, storage guidelines, and the product's warranty agreement.

Inovance MDBUN-60-5T Specifications

General IconGeneral
BrandInovance
ModelMDBUN-60-5T
CategoryIndustrial Equipment
LanguageEnglish

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