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Nord Drivesystems SK 700E Series User Manual

Nord Drivesystems SK 700E Series
76 pages
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SK TU1-DEV
SK TU2-DEV
SK TU3-DEV
GB
BU 0050
USS Bus modules and MODBUS RTU
Supplementary manual for NORD frequency inverters
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Nord Drivesystems SK 700E Series Specifications

General IconGeneral
BrandNord Drivesystems
ModelSK 700E Series
CategoryDC Drives
LanguageEnglish

Summary

Safety and Operating Instructions

1. General

General safety precautions and personnel qualifications.

2. Proper use in Europe

Guidelines for intended use within Europe, including directives.

3. Transport, storage

Instructions for transportation, storage, and handling.

4. Installation

Guidance on installation and cooling requirements.

5. Electrical connections

Safety information for electrical connections and regulations.

6. Operation

Safety considerations during operation and parameterization.

7. Maintenance and repairs

Safety instructions for maintenance and repair work.

1 USS

1.1 General Information

Overview of the USS protocol, its definition, and features.

1.2 Modules

Overview of available modules for display, control, and parameterization.

1.3 USS Protocol Specification

Details the USS protocol specifications, including telegrams and data.

1.4 Bus Configuration

Discusses the physical interface (RS485) and general USS bus configuration.

1.5 Data transmission

Describes the cyclic data traffic structure (PKW and PZD sections).

1.6 Telegram examples

Provides examples of USS telegrams for control and parameterization.

1.7 Master Telegram Times

Table detailing telegram times based on baud rate and PPO type.

1.8 Frequency Inverter Settings

Details parameters required on the inverter for USS protocol operation.

2 Modbus RTU

2.1 The bus system

Describes the Modbus bus system architecture, configuration, and termination.

2.2 Features

Lists standard features of Modbus RTU in NORD frequency inverters.

2.3 Telegram Structure

Explains the structure of Modbus RTU telegrams (Address, Function Code, Data, CRC).

2.5 Function Codes

Lists supported Modbus RTU function codes and their descriptions.

2.6 Exception Responses

Explains error messages sent when a query cannot be answered.

2.8 Description of parameters

Provides access to Bus IN/OUT bits and parameter descriptions.

3 Faults

3.1 Troubleshooting

Explains how the inverter reacts to deviations and options for resetting faults.

3.2 Error messages

Table of possible bus-specific error messages, their causes, and remedies.

4 Additional information

4.1 Maintenance and servicing information

Information on maintenance, repairs, and contacting technical support.

4.2 Abbreviations in this manual

Glossary of abbreviations used in the manual.

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