Yaskawa Metasys N2 User Manual

Yaskawa AC Drive - Z1000 Bypass Network Protocol

Metasys N2

Technical Manual

Type: Z1B1

To properly use the product, read this manual thoroughly and retain for easy reference, inspection, and maintenance. Ensure the end user receives this manual.

MANUAL NO. TOEP YAICOM 12A

This Page Intentionally Blank

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of Yaskawa. No patent liability is assumed with respect to the use of the information contained herein. Moreover, because Yaskawa is constantly striving to improve its high-quality products, the information contained in this manual is subject to change without notice. Every precaution has been taken in the preparation of this manual. Yaskawa assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in this publication.

YASKAWA TOEP YAICOM 12A Z1000 Bypass Network Protocol Metasys® N2 Technical Manual

Table of Contents

1 PREFACE AND SAFETY.........................................................................................4

2 N2 SPECIFICATIONS AND CONFIGURATION......................................................7

3 CONNECTING TO A NETWORK.............................................................................8

4 N2 SETUP PARAMETERS....................................................................................10

5 BYPASS OPERATIONS BY N2.............................................................................12

6 COMMUNICATIONS TIMING.................................................................................16

7 METASYS N2 POINT DATABASE........................................................................17

8 MAILBOX FUNCTION............................................................................................20

9 REVISION HISTORY..............................................................................................21

YASKAWA TOEP YAICOM 12A Z1000 Bypass Network Protocol Metasys® N2 Technical Manual

1 Preface and Safety

Yaskawa manufactures products used as components in a wide variety of industrial systems and equipment. The selection and application of Yaskawa products remain the responsibility of the equipment manufacturer or end user. Yaskawa accepts no responsibility for the way its products are incorporated into the final system design. Under no circumstances should any Yaskawa product be incorporated into any product or design as the exclusive or sole safety control. Without exception, all controls should be designed to detect faults dynamically and fail safely under all circumstances. All systems or equipment designed to incorporate a product manufactured by Yaskawa must be supplied to the end user with appropriate warnings and instructions as to the safe use and operation of that part. Any warnings provided by Yaskawa must be promptly provided to the end user. Yaskawa offers an express warranty only as to the quality of its products in conforming to standards and specifications published in the Yaskawa manual. NO OTHER WARRANTY, EXPRESS OR IMPLIED, IS OFFERED. Yaskawa assumes no liability for any personal injury, property damage, losses, or claims arising from misapplication of its products.

Applicable Documentation

The following manuals are available for the Z1000 Bypass:

Yaskawa AC Drive Z1000 Bypass Technical Manual for HVAC Fan and Pump (SIEPYAIZ1B01)

Read this manual first. This manual is packaged together with the product and contains basic information required to install and wire the bypass. It also gives detailed information on fault diagnostics, parameter settings, and BACnet specifications. The purpose of this manual is to prepare the Z1000 Bypass for a trial run with an application and for basic operation. This manual is also available for download on the Yaskawa documentation website, www.yaskawa.com.

Z1000-Series AC Drive User Manual (TOEPC71061645)

This manual contains basic information required to install and wire the drive. It also gives detailed information on fault diagnostics, parameter settings, and BACnet specifications. The purpose of this manual is to prepare the drive for a trial run with an application and for basic operation. This manual is available for download on the Yaskawa documentation website, www.yaskawa.com.

Z1000-Series AC Drive Programming Manual (SIEPC71061645)

This manual provides detailed information on parameter settings, drive functions, maintenance, and MEMOBUS/Modbus specifications. Use this manual to expand drive functionality. This manual is available for download on the Yaskawa documentation website, www.yaskawa.com.

Software Applicability

The Metasys N2 communication protocol is applicable in Z1000 drive software version VSE910000.

Terms

Note: Indicates supplemental information that is not related to safety messages.

Drive: Yaskawa Z1000-Series Drive

Bypass: Yaskawa Z1000 Bypass

Registered Trademarks

Metasys® N2 is a trademark of Johnson Controls, Inc.

All other trademarks are the property of their respective owners.

Supplemental Safety Information

Read and understand this manual before installing, operating, or servicing this option. The option must be installed according to this manual and local codes.

The following conventions are used to indicate safety messages in this manual. Failure to heed these messages could result in serious or possibly even fatal injury or damage to the products or to related equipment and systems.

WARNING

Read and understand this manual before installing, operating or servicing this drive. The drive must be installed according to this manual and local codes.

YASKAWA TOEP YAICOM 12A Z1000 Bypass Network Protocol Metasys® N2 Technical Manual

1 Preface and Safety

WARNING

The following conventions are used to indicate safety messages in this manual. Failure to heed these messages could result in serious or fatal injury or damage to the products or to related equipment and systems.

DANGER

Indicates a hazardous situation, which, if not avoided, will result in death or serious injury.

WARNING

Indicates a hazardous situation, which, if not avoided, could result in death or serious injury.

WARNING! may also be indicated by a bold key word embedded in the text followed by an italicized safety message.

CAUTION

Indicates a hazardous situation, which, if not avoided, could result in minor or moderate injury.

CAUTION! may also be indicated by a bold key word embedded in the text followed by an italicized safety message.

NOTICE

Indicates a property damage message.

NOTICE: may also be indicated by a bold key word embedded in the text followed by an italicized safety message.

General Safety

General Precautions

• The diagrams in this manual may be indicated without covers or safety shields to show details. Replace the covers or shields before operating the drive and run the drive according to the instructions described in this manual.

• Any illustrations, photographs, or examples used in this manual are provided as examples only and may not apply to all products to which this manual is applicable.

• The products and specifications described in this manual or the content and presentation of the manual may be changed without notice to improve the product and/or the manual.

• When ordering a new copy of the manual due to damage or loss, contact your Yaskawa representative or the nearest Yaskawa sales office and provide the manual number shown on the front cover.

• If nameplate becomes worn or damaged, order a replacement from your Yaskawa representative or the nearest Yaskawa sales office.

DANGER

Heed the safety messages in this manual.

Failure to comply will result in death or serious injury. The operating company is responsible for any injuries or equipment damage resulting from failure to heed the warnings in

this manual.

Electrical Shock Hazard

Do not connect or disconnect wiring while the power is on.

Failure to comply will result in death or serious injury. Failure to comply will result in death or serious injury. Before servicing, disconnect all power to the equipment. The internal

capacitor remains charged even after the power supply is turned off. The charge indicator LED will extinguish when the DC bus voltage is below 50 Vdc. To prevent electric shock, wait for at least the time specified on the warning label once all indicators are OFF, and then measure the DC bus voltage level to confirm it has reached a safe level.

YASKAWA TOEP YAICOM 12A Z1000 Bypass Network Protocol Metasys® N2 Technical Manual

1 Preface and Safety

NOTICE

Observe proper electrostatic discharge procedures (ESD) when handling the drive and circuit boards.

Failure to comply may result in ESD damage to the drive circuitry.

Do not perform a withstand voltage test on any part of the drive.

Failure to comply could result in damage to the sensitive devices within the drive.

Do not operate damaged equipment.

Failure to comply could result in further damage to the equipment. Do not connect or operate any equipment with visible damage or missing parts.

Do not expose the drive to halogen group disinfectants.

Failure to comply may cause damage to the electrical components in the drive. Do not pack the drive in wooden materials that have been fumigated or sterilized. Do not sterilize the entire package after the product is packed.

YASKAWA TOEP YAICOM 12A Z1000 Bypass Network Protocol Metasys® N2 Technical Manual

Z1000 Z1000 Z1000 Bypass Bypass Bypass

Metasys Field Controller

2 N2 Specifications and Configuration

The bypasses can be monitored and controlled by a controller on a Metasys N2 network (N2) using RS-485 technology. The bypass act as slaves on the N2 network.

Up to 255 bypasses can communicate on a single N2 network. If more bypasses or N2 devices are required, another N2 network is required.

The N2 node address is configurable by a parameter in the bypass. This defines the physical address of the bypass on the N2 network.

Once the addressing is set, a controller can initiate communication to the bypass. The bypass will perform the specified function and then send a response back to the controller.

Figure 1 Connecting Multiple Bypasses to a Metasys N2 Network

N2 specifications appear in the following table:

Item Specifications

Interface RS-485

Communication Speed: 9600 bps

Communication Parameters

Protocol Metasys N2

Max Number of Drives 255 per N2 Network Segment

Data Length: 8-bit (fixed) Parity: None Stop Bit: 1-bit (fixed)

YASKAWA TOEP YAICOM 12A Z1000 Bypass Network Protocol Metasys® N2 Technical Manual

TB3

4 3 2 1

SHLD

TXRX-

TXRX+

IG5

Shield

Transmit/Receive (-)

Transmit/Receive (+)

Isolated Ground Reference

3 Connecting to a Network

This section explains how to connect the drive to an N2 network and the network termination required for a connection.

Network Cable Connection

Follow the instructions below to connect the bypass to a N2 network.

With the power shut off, connect the communications cable to the bypass controller and the master. Use terminal TB3

for N2.

Figure 2 Serial Communications Cable Connection Terminal (TB3)

Note: Separate the communications cables from the main circuit cables and other wiring and power cables. Use shielded cables for

the communications cables, and properly shielded clamps to prevent problems caused by electrical interference.

Check or set the termination resistor selection at all slaves. Refer to the description in the Network Termination section for details on the termination resistor.

Switch the power on.

Set the parameters needed for serial communications (Z3-01 through Z3-11) using the digital operator.

Shut the power off and wait until the display on the digital operator goes out completely.

Turn the power back on.

The bypass is now ready to begin communicating with the master.

YASKAWA TOEP YAICOM 12A Z1000 Bypass Network Protocol Metasys® N2 Technical Manual

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