ROOTECH Accura 2750LC[I] Communication User Guide

ACCURA 2700/2750

Smart Motor Management System

Provides overall management system for MCC, beyond individual MCC unit

Communication User Guide[English]

Revision 1.10 2020/02/03

Incoming-Unit Intergrated Module

Incoming-Unit Intergrated HMI Module

Accura 2700M

Accura 2700DW

Motor-Unit Protection Module

Motor-Unit Protection & Control Module

Accura 2750P-5A

Accura 2750PC-5A

Accura 2750P-30A

Accura 2750PC-30A

Accura 2750P-100A

Accura 2750PC-100A

Accura 2750PC-160A

Accura 2750PC-250A

Accura 2750PC-400A

Terminal Block

TM-PC-160A/250A

TM-PC-400A

Inverter-Unit Voltage Measurement & Control Module

Inverter-Unit Voltage Measurement Module

Accura 2750INV

Accura 2750VOL

Motor-Unit Protection HMI Module

Motro-Unit Protection & Control HMI

Module

Inverter-Unit Protection & Control

HMI Module

Accura 2750D

Accura 2750DC

Accura 2750DCI

LOP Control Gateway

Accura 2750LCG

LOP Control Module

Inverter LOP Control Module

LC POW Module

Accura 2750LC

Accura 2750LCI

Accura 2750LC POW

Unit-Socket

Bridge-Socket

Notice

Accura 2700/2750 Communication User Guide

Page 6

Notice

Symbol

Caution

Indicates the presence of dangerous voltage which can cause severe injury or death to

persons if proper precautions are not followed.

Warning

Alerts the user to the presence of hazards which can cause somewhat injury to persons,

damage to property or damage to the device itself, if proper precautions are not

followed.

Note

Indicates the user’s attention to installation, operating and maintenance instructions.

Indicates alternative voltage or current.

Indicates direct voltage or current.

Installation Consideration

Installation and operation of Accura 2700/2750 should be performed only by qualified, competent

personnel that have appropriate training and experience with high voltage and current devices.

Caution

Failure to observe the following instructions may result in severe injury or death.

 During normal operation of Accura 2700/2750, hazardous voltages are present on its terminal strips of

voltages input and power.

 Standard safety precautions are as followed while performing any installation or service work

[removing PT fuses, shorting CT secondaries, etc.]

 Do not access to terminal strips of Accura 2700/2750 after installation

Accura 2700/2750 Communication User Guide

Notice

Page 7

Warning

Observe the following instructions, or permanent damage to the meter may occur.

 Do not apply Accura 2700/2750 to voltages and currents that exceed Input ratings of PT and CT

 To use device in the other way than specified by manufacturer can cause severe damage.

 Connect ground terminal to the earth ground to protect device from noise and surge.

 Terminal screw torque is as followed.

- barrier-type voltage terminal: 1.35Nm[1.00 ft-lbf] max.

- barrier-type digital inputs/digital output terminal: 0.90Nm[0.66 ft.lbf] max.

About Manual

Rootech Inc. reserves the right to make changes in the device specifications shown in this User Guide

without notice. Rootech Inc. advises customers to obtain the latest specifications of device before giving

orders to confirm that the information being relied on by the customer is up to date.

In the absence of written agreement to the contrary, Rootech Inc. assumes no liability for Rootech Inc.

applications assistance, customer’s system design, or infringement of patents or copyrights of third

parties by or arising from the use of devices described herein.

The information contained in this document is believed to be accurate at the time of publication,

however, Rootech Inc. assumes no responsibility for any errors which may appear here and reserves the

right to make changes without notice.

Limitation of Liability

Where applicable law allows and does not prohibit or restrict such limitation, Rootech, Inc’s liability for

anything relating to this product shall be limited to the price paid for the product.

Warranty

Accura 2700/2750 Communication User Guide

Page 8

Warranty

For products and software that are sold or licensed by Rootech Inc. during the period from the date of

receipt by you until the present, Rootech warrants only to the original purchaser.

The purchased products shall be substantially free from material defects in material and workmanship by

Rootech for two years from the date receipt by you.

The software itself is provided “as is” without any warranty of any kind.

In order for the original purchaser to make a claim under the warranties described above, the original

purchaser must promptly contact Rootech headquarter. After receiving such notice, Rootech may either

in Rootech’s sole discretion, examine the product at the original purchaser’s site or issue shipping

instructions to the original purchaser to return the relevant product to Rootech for examination at the

original purchaser’s expense, transportation charges prepaid.

If after examining the product Rootech reasonably confirms that such examined product does not meet

the warranties, then the original purchaser’s sole remedy and Rootech’s sole obligation or liability shall

be, at Rootech’s option, to repair, replace or refund the price paid for that product.

Limitation of Warranty

The Warranty does not apply to uninterrupted or error-free operation of the Product or cover normal

wear and tear of the product or costs caused by the removal, installation, or troubleshooting of the

customer's electrical systems.

The warranty claims for defects caused by any of the following factors are not covered.

 Improper use(alteration, accident, misuse, abuse) or Failure to act in accordance with installation,

operation or maintenance instructions

 Unauthorized modifications, changes or attempted repairs

 Failure to comply with applicable safety standards & regulations

 Damages when transporting or storing

 Damages by force majeure, examples are(not necessarily limited): fire, flood, earthquakes, storm

damage, overvoltage & lightning

 If the original identify markings(trade-mark, serial number, etc.) have been defaced, altered, or

removed

Accura 2700/2750 Communication User Guide

Warranty

Page 9

Rootech shall not be liable for any other claim than a claim solely for the breach of one of the above

warranties that is made in accordance with the above described procedures- made by the original

purchaser, its employees, agents, or contractors for any loss, damage, or expense incurred due to,

caused by, or related to any purchased product.

Any technical assistance provided by Rootech's personnel or representatives in system design shall be

deemed to be a proposal and not a recommendation. The responsibility for determining the feasibility of

such proposals lies with the original purchaser and should be tested by the original purchaser.

It is the original purchaser’s responsibility to determine the suitability of any product and associated

documentation for its purposes. The original purchaser acknowledges that 100% "up" time is not

realizable because of possible hardware or software defects. The original purchaser recognizes that such

defects and failures may cause inaccuracies or malfunctions.

Only the terms expressed in these limited Warranties shall apply and no distributor, corporation or other

entity, individual or employee of Rootech or any other entity is authorized to amend, modify or extend

the Warranties in any way.

Standard Compliance

PRO. CONT. EQ. E324900

IND. CONT. EQ. E492963

MSIP-REM-RTE-ACCURA 2700M

MSIP-REM-RTE-ACCURA 2750P

QMS-1347

KAB-QC-09

Revision History

Accura 2700/2750 Communication User Guide

Page 10

Revision History

The following versions of Accura 2700/2750 Communication User Guide have been released.

Revision

Date

Description

Revision 1.00

2019. 3. 8

Initial draft.

Revision 1.01

2019. 5. 8

Update terminology for consistency

Revision 1.10

2020. 2. 3

Modify Accura 2700 Product Name

Update event contents for MCS, I.OCR

Accura 2700/2750 Communication User Guide

Contents

Page 11

Contents

Chapter 1 Communication Map Overview ..................................................................................................................... 16

Module Name .............................................................................................................................................................. 16

Summary Map ............................................................................................................................................................. 17

Data Format ................................................................................................................................................................. 19

Data Attribute of Register Access............................................................................................................................ 20

Chapter 2 System Information Category ........................................................................................................................ 23

Accura 2700M System Information ......................................................................................................................... 23

Accura 2700M Partner System Information .......................................................................................................... 24

Accura 2700DW System Information ...................................................................................................................... 25

Accura 2750LCG System Information ...................................................................................................................... 26

Accura 2750 System Information............................................................................................................................. 27

Accura 2750P[C] System Information Detailed .......................................................................................................................... 27

Accura 2750D[C/CI] System Information Detailed ................................................................................................................... 29

Accura 2750LC[I] System Information Detailed ......................................................................................................................... 30

Accura 2750INV/VOL System Information Detailed ................................................................................................................ 31

Accura 2750 Supercapacitor Information ............................................................................................................... 32

Accura 2750 Supercapacitor Information Detailed .................................................................................................................. 32

Chapter 3 Setup Category ................................................................................................................................................. 34

Remote Setup Unlock ................................................................................................................................................ 34

General Setup .............................................................................................................................................................. 34

Accura 2700M General Setup ............................................................................................................................................................. 34

Accura 2750P[C] General Setup ......................................................................................................................................................... 34

Time Setup ................................................................................................................................................................... 35

Accura 2700M Time Setup ................................................................................................................................................................... 35

Time-zone Setup (Summer Time Setup) ....................................................................................................................................... 35

Network Time Protocol (NTP) Setup ............................................................................................................................................... 36

Communication Setup ............................................................................................................................................... 37

Ethernet Setup ............................................................................................................................................................................................ 37

RS-485 Setup .............................................................................................................................................................................................. 38

User Interface Setup .................................................................................................................................................. 39

Accura 2700/2750 Common Interface ........................................................................................................................................... 39

Accura 2700M User Interface ............................................................................................................................................................. 39

Accura 2700DW User Interface .......................................................................................................................................................... 40

Accura 2750 User Interface Setup .................................................................................................................................................... 41

Accura 2750P[C] User Interface Setup ........................................................................................................................................... 42

Accura 2750D[C/CI] User Interface Setup..................................................................................................................................... 43

Accura 2750LC[I] User Interface Setup ........................................................................................................................................... 44

Measurement Setup ................................................................................................................................................... 45

Accura 2700M Measurement Setup ................................................................................................................................................ 45

Accura 2750P[C] Measurement Setup ............................................................................................................................................ 47

Contents

Accura 2700/2750 Communication User Guide

Page 12

Voltage Monitoring Setup ......................................................................................................................................... 49

Motor Protection Setup ............................................................................................................................................. 50

Motor Control Setup .................................................................................................................................................. 57

Motor Operation Limit Setup ................................................................................................................................... 61

Network Management Setup ................................................................................................................................... 62

Digital Input (DI) Setup ............................................................................................................................................. 62

Digital Output(DO) Setup ......................................................................................................................................... 64

Energy Setup ............................................................................................................................................................... 65

Accura 2700M Energy Setup ............................................................................................................................................................... 65

Accura 2750P[C] Energy Setup........................................................................................................................................................... 65

Chapter 4 Control Category .............................................................................................................................................. 68

Remote Control Unlock ............................................................................................................................................. 68

Demand Control .......................................................................................................................................................... 68

Motor Control Command .......................................................................................................................................... 69

Module Event Reset ................................................................................................................................................... 70

Module Clear Command ............................................................................................................................................ 70

Test Parameter Setup ................................................................................................................................................. 71

Chapter 5 Measurement Data Category ......................................................................................................................... 72

Accura 2700M Measurement Data .......................................................................................................................... 72

Accura 2700M Max/Min Data .................................................................................................................................. 75

Accura 2700M State Data.......................................................................................................................................... 77

Accura 2750P[C] Measurement Data ...................................................................................................................... 78

Accura 2750P[C] Max/Min Data with time-stamp ................................................................................................ 82

Accura 2750P[C] State Data ...................................................................................................................................... 88

Harmonics Data .......................................................................................................................................................... 94

Voltage/Current Harmonics Data of Accura 2700M ................................................................................................................ 94

Current Harmonics Data of Accura 2750P[C] ............................................................................................................................. 94

Waveform Data ........................................................................................................................................................... 95

Voltage Waveform Data of Accura 2700M .................................................................................................................................. 95

Current Waveform Data of Accura 2750P[C] .............................................................................................................................. 96

Chapter 6 Event Data Category ........................................................................................................................................ 98

Event Data .................................................................................................................................................................... 98

Event Data Detailed .................................................................................................................................................. 101

Protection & Monitoring Event ........................................................................................................................................................ 101

Motor Status Event ................................................................................................................................................................................ 104

Start Inhibit Event ................................................................................................................................................................................... 105

Control Command Event ..................................................................................................................................................................... 105

Control Mode Event .............................................................................................................................................................................. 106

Digital Input Event .................................................................................................................................................................................. 106

Digtal Output Event ............................................................................................................................................................................... 106

Setup Change Event .............................................................................................................................................................................. 107

Module Connection Event .................................................................................................................................................................. 113

Accura 2700/2750 Communication User Guide

Contents

Page 13

Redundancy Event .................................................................................................................................................................................. 113

Control Command Error Check Event .......................................................................................................................................... 115

Operation Limit Event ........................................................................................................................................................................... 115

Self-Diagnosis Event .............................................................................................................................................................................. 116

Auto Restart Event ................................................................................................................................................................................. 118

Data Clear Event ...................................................................................................................................................................................... 118

Event Reset Event.................................................................................................................................................................................... 119

Module Management Event .............................................................................................................................................................. 120

Event RMS Trend / Waveform Data ...................................................................................................................... 121

One-cycle RMS Trend Data of Accura 2700M .......................................................................................................................... 122

One-cycle RMS Trend Data of Accura 2750 .............................................................................................................................. 122

Waveform Data of Accura 2700M .................................................................................................................................................. 123

APPENDIX A Modbus Protocol of Accura 2700 ........................................................................................................ 124

Modbus Protocol Overview .................................................................................................................................... 124

Modbus Protocol .................................................................................................................................................................................... 124

Modbus RTU Protocol .......................................................................................................................................................................... 124

Modbus TCP Protocol ........................................................................................................................................................................... 124

Modbus Packet Structure ........................................................................................................................................ 125

Modbus RTU Packet Structure .......................................................................................................................................................... 125

Modbus TCP Packet Structure .......................................................................................................................................................... 126

Accura 2700M Modbus Supports .......................................................................................................................... 127

Unit ID (Modbus TCP only) ................................................................................................................................................................ 127

Function code ........................................................................................................................................................................................... 127

Multiple Access Policy .......................................................................................................................................................................... 128

Connection Termination Policy ......................................................................................................................................................... 128

Accura 2700M Function Code Packet Structure .................................................................................................. 129

Function 3 [03h]: Read Holding Registers .................................................................................................................................. 129

Function 6 [06h]: Write Single Register ....................................................................................................................................... 131

Function 16 [10h]: Write Multiple Registers .............................................................................................................................. 132

Function 101 [65h]: Read Multi-block Registers ..................................................................................................................... 134

APPENDIX B Sample of Modbus RTU Packet ............................................................................................................ 137

Request Packet ......................................................................................................................................................................................... 137

Response Packet ...................................................................................................................................................................................... 137

APPENDIX C Sample of Modbus TCP Packet ............................................................................................................ 138

Request Packet ......................................................................................................................................................................................... 138

Response Packet ...................................................................................................................................................................................... 138

APPENDIX D CRC-16[Modbus] Algorithm ................................................................................................................. 139

CRC table .................................................................................................................................................................................................... 139

CRC function ............................................................................................................................................................................................. 139

APPENDIX E Modbus Map Application ...................................................................................................................... 140

Register Addressing ............................................................................................................................................................................... 140

Data Format ............................................................................................................................................................................................... 140

Contents

Accura 2700/2750 Communication User Guide

Page 14

Endian ........................................................................................................................................................................................................... 140

Setup of device ......................................................................................................................................................... 141

Remote Setup Unlocking .................................................................................................................................................................... 141

Remote Setup Locking ......................................................................................................................................................................... 141

Control of device ...................................................................................................................................................... 142

Remote Control Unlocking ................................................................................................................................................................. 142

Remote Control Locking ...................................................................................................................................................................... 142

APPENDIX F S7 Protocol Setup .................................................................................................................................... 143

S7 Setup of Accura 2700M ..................................................................................................................................... 143

Command DB Structure ........................................................................................................................................... 144

Data DB Structure ..................................................................................................................................................... 145

Accura 2700/2750 Communication User Guide

Contents

Page 15

Figures

Fig 1.1 Read access of holding register ......................................................................................................................................... 20

Fig 1.2 Write access of holding register ........................................................................................................................................ 20

Fig 1.3 Private Read access of holding register: Read Access ............................................................................................ 21

Fig 1.4 Private Read access of holding register: Read Parameter .................................................................................... 21

Fig 1.5 Private Write access of holding register: Write Parameter ................................................................................... 22

Fig 1.6 Private Write access of holding register: Write Access .......................................................................................... 22

Fig A.1 Private holding register for each connection ........................................................................................................... 128

Chapter 1 Communication Map Overview

Accura 2700/2750 Communication User Guide

Page 16

Chapter 1 Communication Map Overview

Module Name

Types of Accura 2700/2750 modules are shown in the table below.

Device

Model

Description

Incoming-Unit Intergrated Module

Accura 2700M

MCC incoming-unit power measurement and MCC

Total integrated management

Incoming-Unit Intergrated HMI Module

Accura 2700DW

Display and control for the entire MCC

Motor-Unit Protection Module

Accura 2750P

Measurement and protection of motor-unit

Motor-Unit Protection & Control

Module

Accura 2750PC

Measurement, protection and control of motor-unit

Inverter-Unit Voltage Measurement &

Control Module

Accura 2750INV

Measurement and control of inverter-unit output

voltage

Inverter-Unit Voltage Measurement

Module

Accura 2750VOL

Measurement of inverter-unit output voltage

Motor-Unit Protection HMI Module

Accura 2750D

Display for motor-unit

Motor-Unit Protection & Control HMI

Module

Accura 2750DC

Display and control for motor-unit

Inverter-Unit Protection & Control HMI

Module

Accura 2750DCI

Display and control for inverter-unit

LOP Control Gateway

Accura 2750LCG

Communication between Accura 2700M and Accura

2750LC[I]

LOP Control

Accura 2750LC

Display and control in LOP

Inverter LOP Control Module

Accura 2750LCI

Display and control in the inverter-unit LOP

LC POW Module

Accura 2750LC

POW

Supply power to Accura 2750LC[I]

Abbreviated names for the Accura 2700/2750 modules are shown in the table below.

Model Abbreviation

Description

A2750M

M module

Accura 2700M

A2750DW

DW module

Accura 2700DW

A2750P

P module

Accura 2750P

A2750PC

PC module,

Accura 2750PC

A2750P[C]

P/PC module

Accura 2750P or Accura 2750PC

A2750INV

INV module

Accura 2750INV

A2750VOL

VOL module

Accura 2750VOL

A2750INV/VOL

INV/VOL module

Accura 2750INV or Accura 2750VOL

A2750D

D module

Accura 2750D

A2750DC

DC module

Accura 2750DC

A2750DCI

DCI module,

Accura 2750DCI

A2750D[C]

D/DC module

Accura 2750D or Accura 2750DC

Accura 2700/2750 Communication User Guide

Chapter 1 Communication Map Overview

Page 17

A2750DC[I]

DC/DCI module

Accura 2750DC or Accura 2750DCI

A2750D[C/CI]

D/DC/DCI module

Accura 2750D or Accura 2750DC or Accura 2750DCI

A2750LCG

LCG module

Accura 2750LCG

A2750LC

LC module

Accura 2750LC

A2750LCI

LCI module,

Accura 2750LCI

A2750LC[I]

LC/LCI module

Accura 2750LC or Accura 2750LCI

A2750LC POW

LC POW module

Accura 2750LC POW

The Accura 2700/2750 Communication Map is composed of five categories (System Information, Setup,

Control, Measurement Data, and Event Data). Accura 2700/2750 supports Modbus Protocol based

communication. See APPENDIX A for more information.

Summary Map

Register is addressed starting at zero. Register address is obtained by subtracting by 1 from register

number of Modbus Map. Holding register 1 - 65536 are addressed as 0 - 65535.

Register Number

Description

System Information

1-49

Accura 2700M System Information

61-70

Accura 2700DW System Information

81-111

Accura 2750LCG System Information

10001-10116

Accura 2750 System Information of Module ID 1

- Accura 2750P[C] System Information

- Accura 2750D[C/CI] System Information

- Accura 2750LC[I] System Information

- Accura 2750INV/VOL System Information

10701-37416

Accura 2750 System Information of Module ID 2 to Module ID 40

38001-42000

Accura 2750 Supercapacitor Information of Module ID 1 to Module ID 40

Setup

51000

Remote Setup Unlock

51001-51120

General Setup

51121-51160

Time Setup

51161-51180

Communication Setup (Ethernet, RS-485)

51181-51360

User Interface Setup

51361-51420

Measurement Setup

51421-51540

Voltage Monitoring Setup

51541-51710

Motor Protection Setup

51711-51770

Motor Control Setup

51771-51790

Motor Operation Limit Setup

51791-51830

Network Management Setup

Chapter 1 Communication Map Overview

Accura 2700/2750 Communication User Guide

Page 18

51831-51850

Accura 2750P[C] DI Setup

51851-51940

Accura 2750P[C] DO Setup

51941-51999

Energy Setup

52271-52328

User Defined Starter Function Setup

Control

55000

Remote Control Unlock

55002-55003

Demand Control

55006-55008

Motor Control Command

55011-55012

Module Event Reset

55016-55017

Module Clear Command

55801-55803

Test Parameter Setup

Measurement Data

4001-4206

Accura 2700M Measurement Data

4295-4299

Accura 2700M State Data.

10117-10700

Accura 2750 Data of Module ID 1

- Measurement Data

- State Data

58000-58399

Voltage/Current Harmonics Data of Accura 2700M

0 - 31st components from 64-sample/cycle per phase * 3-phase

58400-58599

Current Harmonics Data of Accura 2750P[C]

0 - 31st components from 64-sample/cycle per phase * 3-phase

58600-59399

Voltage/Current Waveform Data of Accura 2700M:

64-sample/cycle * 2-cycle * 3-phase

59400-59929

Current Waveform Data of Accura 2750P[C]:

64-sample/cycle * 2-cycle * 3-phase

60001-60125

Accura 2700M Measurement Max/Min Data

60500-60801

Accura 2750P[C] Measurement Max/Min Data

Event Data

56000-56070

Event Data

56201-57205

Event RMS Trend/ Waveform Data

Accura 2700/2750 Communication User Guide

Chapter 1 Communication Map Overview

Page 19

Data Format

Description

Word Length

Endian

Range

Char

ASCII

0.5

NA 1

Number and Character

UInt8

Unsigned 8-bit

0.5

NA 1

0 to 255

UInt16

Unsigned 16-bit

1

NA 1

0 to 65,535

Int16

Signed 16-bit

1

NA 1

-32,768 to 32,767

UInt32

Unsigned 32-bit

2

Big-Endian 2

0 to 4,294,967,295

Int32

Signed 32-bit

2

Big-Endian 2

-2,147,483,648 to 2,147,483,647

Float32

Single-precision Float

( IEEE 754 )

2

Big-Endian 2

-3.4x1038 to 3.4x1038

UInt64

Unsigned 64-bit

4

Big-Endian 3

0 to 18,446,744,073,709,551,615

1. NA (Not Available): 1-word data, independent of endian.

2. 2-word data, two register spaces are used. The upper word is located in the lower address register and

the lower word is located in the higher address register.

3. 4-word data, four register spaces are used. The upper word is located in the lower address register and

the lower word is located in the higher address register.

Chapter 1 Communication Map Overview

Accura 2700/2750 Communication User Guide

Page 20

Data Attribute of Register Access

R: Read Access

Master can obtain device data from the holding registers that have “read attribute” by just reading the

holding registers because the holding registers have the device data directly. This holding register is not

private for each connection, therefore is the same for all connections.

Fig 1.1 Read access of holding register

Master

parameter registers

(device data)

Read Registers

Accura 2700M

modbus holding registers

W: Write Access

Master can transfer data to the holding registers that have “write attribute” by just writing them to the

holding registers that are applied to the device data directly. This holding register is not private for each

connection, therefore is the same for all connections.

Fig 1.2 Write access of holding register

Master

parameter registers

(device data)

Write Registers

Accura 2700M

modbus holding registers

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ROOTECH Accura 2750LC[I] Communication User Guide

ROOTECH Accura 2750LC[I] Communication User Guide

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