ABB ACS 6000 User Manual

ABB
ACS 6000 Maintenance Manual 3BHS202077 ZAB E01 Rev. C 6-1 (4)
Chapter 6 - Changing Clamp Diodes
in 3/5 MVA Phase Modules
See section 4.1 Required Tools and Accessories .
1 Remove the phase module from the cabinet. Follow section
4.2
Removing a Phase Module
.
2 Place the module on a flat surface.
3 To change the NP diode the phase module needs to be turned onto
the side where there are no water connections.
Unscrew the retaining brackets of the fastening bolts (see
Figure 6-1 )
before turning the phase module over or place the phase module on
two wooden beams (see
Figure 6-2 ) to prevent damaging the
brackets.
Figure 6-1 Phase Module with Fastening Bolts Removed
6.1 Required Tools and Accessories
6.2 Changing Procedure

ABB ACS 6000 Specifications

General

Type	Medium Voltage AC Drive
Communication Protocols/Interface	Modbus, Profibus, Ethernet
Efficiency	Up to 98%
Voltage	6 kV to 11 kV
Input Voltage	3.3 kV to 11 kV
Topology	Multilevel
Control Type	Direct Torque Control (DTC)
Cooling Method	Air or Water Cooling
Protection Features	Overcurrent, overvoltage, undervoltage, short circuit
Enclosure Rating	IP54
Applications	Pumps, fans, compressors, conveyors
Voltage Levels	3.3 kV, 4.16 kV, 6.6 kV, 10 kV

Summary

Introduction and Safety

Introduction

Overview of the manual's purpose and target audience for ACS 6000 maintenance.

Safety

Critical safety precautions, warnings, and procedures for working with high-voltage ACS 6000.

Checking IGCTs and Diodes

Safety

Safety measures to be followed before and during testing of IGCTs and diodes.

Checking IGCTs

Procedure and tools for testing IGCT components using voltage measurements and visual checks.

Checking Diodes in 7/ 9 MVA Phase Modules

Method for testing diodes within 7/9 MVA phase modules using multimeter voltage readings.

Changing Diodes and Thyristors in LSU

Required Tools and Accessories

List of specialized tools required for replacing diodes and thyristors in the LSU.

Safety

Essential safety precautions for deenergizing and handling components during LSU maintenance.

Replacing Diodes and Thyristors

Step-by-step guide for replacing diodes and thyristors in the LSU rectifier stack.

Changing 3/5 MVA Phase Modules

Required Tools and Accessories

Tools needed for safely removing and installing 3/5 MVA phase modules.

Removing a Phase Module

Detailed procedure for safely disconnecting and extracting a 3/5 MVA phase module from the cabinet.

Installing a Phase Module

Steps for correctly re-installing a 3/5 MVA phase module, including greasing and connections.

Changing RC-IGCTs in 3/5 MVA Phase Modules

Changing Clamp Diodes in 3/5 MVA Phase Modules

Required Tools and Accessories

Tools and accessories needed for changing clamp diodes in 3/5 MVA phase modules.

Changing Procedure

Step-by-step instructions for removing and replacing clamp diodes in 3/5 MVA phase modules.

Changing 7/9 MVA Phase Modules

Required Tools and Accessories

Tools and accessories required for changing 7/9 MVA phase modules.

Removing a Phase Module

Procedure for safely disconnecting and removing 7/9 MVA phase modules from the cabinet.

Installing a Phase Module

Steps for correctly installing a 7/9 MVA phase module, including connections and final checks.

Changing Diodes and IGCTs in 7/9 MVA Phase Modules

Required Tools and Accessories

List of tools needed for replacing diodes and IGCTs in 7/9 MVA phase modules.

Overview

General overview of semiconductor locations within the 7/9 MVA phase module.

Safety

Critical safety measures for working with 7/9 MVA phase modules.

Replacing Clamp and NP Diodes

Detailed steps for replacing clamp and NP diodes in 7/9 MVA phase modules.

Replacing Free Wheeling Diodes

Procedure for replacing free-wheeling diodes in 7/9 MVA phase modules.

Replacing IGCTs

Steps for replacing IGCTs within the 7/9 MVA phase module while it remains in the cabinet.

Changing Thyristors in EXU

Required Tools and Accessories

Tools required for changing thyristors in the EXU.

Safety

Safety procedures for working on the EXU, emphasizing deenergization.

Replacing Thyristors in EXUs for Brushless Excitation

Procedure for replacing thyristors in EXUs used for brushless excitation.

Replacing Thyristors in EXUs for Direct Excitation

Procedure for replacing thyristors in EXUs used for direct excitation.

Deflection Diagram

Graphical representation of deflection values for thyristor clamp forces.

Changing Semiconductors in VLU

Required Tools and Accessories

Tools needed for changing semiconductors in the VLU.

Safety

Safety precautions for semiconductor replacement in the VLU.

Replacing the Semiconductors

General procedure for replacing diodes and IGCTs in the VLU semiconductor stack.

Changing IGCTs in DIU

Required Tools and Accessories

Tools needed for replacing IGCTs in the DIU.

Safety

Safety measures for working on the DIU and replacing IGCTs.

Removing an IGCT

Step-by-step guide to safely remove an IGCT from the DIU.

Installing an IGCT

Procedure for installing a new IGCT into the DIU, including clamping pressure adjustment.

Replacing Printed Circuit Boards

Safety

Safety precautions for handling and replacing sensitive printed circuit boards.

Replacing an AMC3 Board

Procedure for replacing an AMC3 board in the COU cabinet.

Changing the AMC3 Flash Memory

Steps to replace the flash memory PCB on an AMC3 board.

Replacing an INT Board

Guide for replacing INT boards located in ARU, INU, and COU cabinets.

Replacing a CVMI Board

Procedure for replacing CVMI boards in ARU and INU cabinets.

Function of LEDs

AMC Board

Description of LEDs and their functions on the AMC board.

INT Board

Explanation of LEDs on INT boards in ARU, INU, and COU configurations.

GUSP

LED functions for GUSP units, detailing operational status and faults.

IGCT

LED indicators for IGCT output stage functions and potential issues.

Tightening Torques and Threaded Connections

Water Cooling Unit

Tightening torques for pipe couplings and pumps in the water cooling unit.

Pipe Joints and Busbar Connections

Recommended tightening torques for pipe joints and busbar connections.