Toptech MultiLoad III Manuel utilisateur

MultiLoad III / RCU III

Explosion Proof (EX) Hardware

(Loaded with MultiLoad II+ / RCU II+ Firmware)

Installation Guide

MAY 26, 2023

2MultiLoad III/RCU III Hardware - Explosion Proof (EX) Installation Guide

TOPTECH SYSTEMS

MultiLoadIII/ RCUIII –ExplosionProof(EX)Hardware

InstallationGuide

(LoadedwithMultiLoadII+/RCUII+Firmware)

1124 Florida Central Parkway

Longwood, FL 32750

USA

Phone +1 (407).332.1774

The information contained in this document is proprietary and confidential. No part of this document may be copied, reproduced, or

transmitted in any medium without the express written permission of Toptech Systems, Inc.

Disclaimer

Toptech Systems assumes no responsibility for damages resulting from installation or use of its products. Toptech Systems will not be

liable for any claims of damage, lost data, or lost time as a result of using its products.

3MultiLoad III/RCU III Hardware - Explosion Proof (EX) Installation Guide

EU Declaration of Conformity

The signatory, representing the manufacturer, declares that the products listed below are in conformity with the essential requirements of

the following EC Directive(s) when installed in accordance with the product installation instructions:

2014/32/EU The Measuring Instruments Directive (and its amending directives)

2014/30/EU The Electromagnetic Compatibility Directive (and its amending directives)

2014/34/EU The Potentially Explosive Atmospheres Directive (and its amending directives)

Product: Operator Interface/Process Control Equipment intended for use in potentially explosive

atmospheres

Model name/number: MultiLoad III EX (MID, YES), RCU III EX (MID, NO)

Protective Systems: Flameproof ‘d’, Intrinsic Safety ‘ib’

Notified Body(ies)

Det Norske Veritas Certification AS, Number 0575

NMi Certin B.V., Number 0122

Veritasveien 1

Hugo de Grootplein 1

1322 Høvik, Norway

3314 EG Dordrecht

The Netherlands

Conformity has been demonstrated with reference to the following documentation:

EC type-examination certificate : Presafe 17 ATEX 9557X

IECEx CoC : IECEx PRE 17.0013X

EC type-examination certificate : TC7311

Compliance with the Essential Health and Safety Requirements has been assessed by reference to the following standards:

WELMEC guide 8.8 General and Administrative Aspects of the Voluntary System of Modular Evaluation of Measuring

instruments under MID

OIML R117-1:2007(E) Dynamic measuring systems for liquids other than water

EN 61000-6-4: 2007 Generic emissions for industrial operating environments

EN 61000-6-2: 2005 Generic immunity for industrial operating environments

EN 60079-0: 2012 Electrical apparatus for explosive gas atmospheres—General requirements

EN 60079-1: 2014 Electrical apparatus for explosive gas atmospheres—Flameproof enclosures ‘d’

EN 60079-11: 2012 Electrical apparatus for potentially explosive atmospheres—Intrinsic safety ‘i’

Year of CE Marking: 2023

Name: William J. Porthouse Position: Director of Engineering & Production Date: June 2023

Name Plate

4MultiLoad III/RCU III Hardware - Explosion Proof (EX) Installation Guide 
TableofContents 
OVERVIEW..................................................................................................................................... 8 
CHAPTER 1 GENERAL INFORMATION & WARNINGS ........................................................ 10 
 Receiving and/or Returning Equipment ........................................................................................... 10 
 Safety Warnings.................................................................................................................................. 11 
 Electrostatic Discharge (ESD) Protection ........................................................................................ 13 
 FCC Note.............................................................................................................................................. 13 
CHAPTER 2 OPERATING CONDITIONS AND COMPONENTS............................................. 14 
 Product Outline and Dimensions ...................................................................................................... 14 
 MultiLoad III/RCU III EX Hardware Picture................................................................................... 14 
 MultiLoad III/RCU III EX Hardware Dimensions ........................................................................... 15 
2.1.2.1 Front View ..................................................................................................................................... 15 
2.1.2.2 Back View...................................................................................................................................... 16 
2.1.2.3 Bottom View.................................................................................................................................. 17 
2.1.2.4 Top View ....................................................................................................................................... 18 
2.1.2.5 Left Side View ............................................................................................................................... 19 
2.1.2.6 Right Side View............................................................................................................................. 20 
 Operating Characteristics .................................................................................................................. 21 
CHAPTER 3 INSTALLING THE MULTILOAD III/RCUIII EX HARDWARE ........................ 22 
 Tools Required.................................................................................................................................... 22 
 Installation..................................................................................................................................... 22 
 Servicing and Repair..................................................................................................................... 22 
 Cover Closure and Bolt Replacement............................................................................................... 22 
 Cable Entries ....................................................................................................................................... 23 
 Mounting the MultiLoad III/RCU III EX Hardware Enclosure........................................................... 23 
 Metal Plate or Rail......................................................................................................................... 23 
 Wood............................................................................................................................................. 23 
 Concrete or Cinder Block Walls .................................................................................................... 23 
 Mounting Height Considerations................................................................................................... 23 
 Recommended Wire Sizes and Torque for All Terminal Blocks .................................................... 25 
 Electrical Supply Connections .......................................................................................................... 25 
 Cable Gland Entries...................................................................................................................... 25 
 Mains Supply Connection ............................................................................................................. 26 
 Equipment Grounding ................................................................................................................... 26 

5MultiLoad III/RCU III Hardware - Explosion Proof (EX) Installation Guide 
 Equipment Battery......................................................................................................................... 27 
CHAPTER 4 DATA COMMUNICATIONS INTERFACE ........................................................... 28 
 Available Communications Protocol Selection and Wire Spec ..................................................... 29 
 Ethernet......................................................................................................................................... 29 
 RS-422/485................................................................................................................................... 29 
 RS-232.......................................................................................................................................... 30 
 Communication Connection Wiring.................................................................................................. 31 
 Ethernet –Host/TMS Communications......................................................................................... 31 
 Serial FCM I/ FCM II Communications, COM 0, RS485............................................................... 32 
 Serial Host/TMS Communications ................................................................................................ 33 
4.2.3.1 COM 1 - RS-485 4-wire - Host/TMS Communications ................................................................. 33 
4.2.3.2 COM 1 - RS-485 2-wire - Host/TMS Communications ................................................................. 34 
4.2.3.3 COM 1 - RS-232 - Host/TMS Communications ............................................................................ 35 
 Host Ticket Printer/Data Logger.................................................................................................... 35 
4.2.4.1 COM3 –RS232 - Host Ticket Printer/Data Logger....................................................................... 36 
4.2.4.2 COM3 –RS232 –PTB Protocol Host Ticket Printer/Data Logger................................................ 37 
CHAPTER 5 CONNECTING FIELD DEVICES TO INTERNAL FCMS..................................... 38 
CHAPTER 6 CONFIGURATIONS ............................................................................................ 39 
 Weights and Measures Switch Access Control............................................................................... 39 
 External Switch Access Control (MultiLoad III Hardware Only).................................................... 39 
 Field Switch Access Control.......................................................................................................... 40 
 Keypad ................................................................................................................................................. 41 
 Menus and Screens ............................................................................................................................ 41 
 Field Modification and Data Entry..................................................................................................... 42 
 MultiLoad II+/RCU II+ Firmware Preliminary Configuration............................................................ 44 
 Verifying Communications with FCMs. ............................................................................................ 48 
 Using I/O Diagnostics......................................................................................................................... 50 
CHAPTER 7 SERVICE AND REPAIR....................................................................................... 51 
 Overview and Subassemblies............................................................................................................ 51 
 Main Board Replacement ................................................................................................................... 53 
 Display Subassembly Replacement.................................................................................................. 54 
 Keypad Barrier Replacement............................................................................................................. 57 
 Card Reader Replacement ................................................................................................................. 58 

6MultiLoad III/RCU III Hardware - Explosion Proof (EX) Installation Guide

FCM Power Supply Replacement ...................................................................................................... 59

Keypad Replacement.......................................................................................................................... 60

Mounting Feet Installation.................................................................................................................. 62

Cover Replacement............................................................................................................................. 63

Overview Parts List and Part Numbers............................................................................................. 66

CHAPTER 8 REVISION HISTORY .......................................................................................... 67

Hardware Revision.............................................................................................................................. 67

Manual Revision.................................................................................................................................. 67

 
7MultiLoad III/RCU III Hardware - Explosion Proof (EX) Installation Guide 
TableofFigures 
FIGURE 2.1 MULTILOAD III/RCU III EX HARDWARE 14 
FIGURE 2.2 UNIT OUTLINE DRAWING –FRONT VIEW 15 
FIGURE 2.3 UNIT OUTLINE DRAWING –BACK VIEW 16 
FIGURE 2.4 UNIT OUTLINE DRAWING –BOTTOM VIEW 17 
FIGURE 2.5 UNIT OUTLINE DRAWING –LEFT SIDE VIEW 19 
FIGURE 2.6 UNIT OUTLINE DRAWING –RIGHT SIDE VIEW 20 
FIGURE 3.1 SUGGESTED MOUNTING POSITION 24 
FIGURE 3.2 SCREEN VISIBLE AREA 24 
FIGURE 3.3 MULTILOAD III/RCU III EX HARDWARE MAIN BOARD POWER CONNECTOR (TB1) 26 
FIGURE 3.4 MULTILOAD III/RCU III EX HARDWARE MAIN BOARD BATTERY (BT1) 27 
FIGURE 4.1 MULTILOAD III/RCU III EX HARDWARE MAIN BOARD COMMUNICATION CONNECTORS 28 
FIGURE 4.2 ETHERNET CONNECTIONS 31 
FIGURE 4.3 FCM CONNECTIONS 32 
FIGURE 4.4 RS485 4-WIRE, HOST TO A SINGLE MULTILOAD III/RCU III EX HARDWARE (RECOMMENDED) 33 
FIGURE 4.5 RS485 4-WIRE, HOST TO MULTIPLE MULTILOAD III/RCU III EX HARDWARE UNITS 33 
FIGURE 4.6 RS485 2-WIRE, HOST TO A SINGLE MULTILOAD III/RCU III EX HARDWARE UNIT 34 
FIGURE 4.7 RS485 4-WIRE, HOST TO MULTIPLE MULTILOAD III/RCU III EX HARDWARE UNITS 34 
FIGURE 4.8 RS232, HOST TO A SINGLE MULTILOAD III/RCU III EX HARDWARE UNIT 35 
FIGURE 4.9 RS232, HOST TO MULTIPLE MULTILOAD III/RCU III EX HARDWARE UNITS 35 
FIGURE 4.10 TICKET PRINTER / DATA LOGGER CONNECTIONS WITH HANDSHAKE 36 
FIGURE 4.11 TICKET PRINTER / DATA LOGGER CONNECTIONS WITHOUT HANDSHAKE 36 
FIGURE 4.12 PTB PRINTER CONNECTION WITH HANDSHAKE 37 
FIGURE 4.13 PTB PRINTER CONFIGURATION 37 
FIGURE 6.1 W&M BOLT SWITCH 40 
FIGURE 7.1 MULTILOAD III / RCU III EX HARDWARE UNIT 51 
FIGURE 7.2 SUBASSEMBLY IDENTIFICATION 52 
FIGURE 7.3 MAIN BOARD ASSEMBLY REMOVAL 53 
FIGURE 7.4 DISPLAY ASSEMBLY REMOVED FROM THE MOUNTING BRACKET 55 
FIGURE 7.5 REMOVAL OF KEYPAD BARRIER 57 
FIGURE 7.6 EXPLODED VIEW OF CARD READER 58 
FIGURE 7.7 REMOVAL OF FCM POWER SUPPLY 59 
FIGURE 7.8 KEYPAD ASSEMBLY INSTALLATION PREP 61 
FIGURE 7.9 MOUNTING FEET ASSEMBLY 62 
FIGURE 7.10 DISCONNECT DISPLAY AND KEYPAD CABLES 63 
FIGURE 7.11 INSTALL TOP RIGHT SCREW AND REMOVE LOWER HINGE KNUCKLE. 64 
FIGURE 7.12 REMOVE TOP RIGHT SCREW AND LIFT COVER OFF. 65 

8MultiLoad III/RCU III Hardware - Explosion Proof (EX) Installation Guide

Overview

This document is designed to guide individuals installing MultiLoad III/RCU III EX Hardware equipment,

engineering firms developing site electrical drawings, and users troubleshooting system operations such as

managers, system administrators, technicians, andmeter proving personnel.

The following table provides an informative summary of the material available in this guide:

Chapter

Topics Covered

1.General Information and Warnings

This chapter reviews safety and compliance information, as well as

instructions for receiving and returning products.

2.Operating Conditions & Components

This chapter covers product outlineand dimensions, as well as

operating characteristics of the unit.

3.Installing the MultiLoad III/RCU III EX

Hardware

This chapter covers installation considerations and instructions for

the MultiLoad III/RCU III EX Hardware.

4.Data Communication Interface

This chapter reviews hardware connections andcommunication

processes.

5.Connecting Field Devices to the

Internal I/O Board

This chapter covers the available I/O points per board, the

terminal arrangements per board, and then describes in detail

how to connect different field devices to the internal I/O Board.

6. Configurations

This chapter describes how to navigate the system, select field

values, perform data entry, and toggle options on and off.

7. Service and Repair

This chapter describes how to service and repair the MultiLoad

III/ RCU III EX Hardware subassemblies and parts.

8. Hardware Revision History &

Compatibility

This chapter provides changes, modifications,and updates to the

hardware.

9. Revision History

This chapter provides further hardware revisions as well as revisions

made to this document.

9MultiLoad III/RCU III Hardware - Explosion Proof (EX) Installation Guide

The following keys allow the user to locate information needed in this guide:

ICON KEY

Important information to enhance understanding and make better use of the product.

Indicates potential damage to hardware or loss of data.

Potential for property damage or that personal injury may occur. Pay close attention and

follow instructions when this symbol is displayed.

Typographical Conventions:

Boldface: Indicates what is pressed on the keypad. Example: Key in 00000.

Italics: Emphasizes a key product or industry term.

Example: the display features a pick-list style of item selection.

This guide covers RCU III/MultiLoad III EX Hardware installation information only. For information about

base MultiLoad firmware, please consult the MultiLoad II+ Firmware User Guide. For information about base

RCU firmware, please consult the RCU II+ Firmware User Guide. For information about wiring other models,

please consult the respective installation guides. For information about the MultiLoad register interface and

Modbus communication, please reference the MultiLoad II Communication Guide. Updated versions of all

manuals, including this one, are available on our website at http://www.toptech.com.

CHAPTER 1–GENERAL INFORMATION & WARNINGS

10 MultiLoad III/RCU III Hardware - Explosion Proof (EX) Installation Guide

Chapter 1 General Information & Warnings

Receiving and/or Returning Equipment

At receipt, the MultiLoad III/ RCU III EX Hardware should be immediately inspected after opening the

packaging case. If any damage is visible, notify the carrier at once to establish liability.

Contact Toptech’s Return Materials Department to initiate timely repair or replacement of the unit.

A Return Materials Authorization (RMA) will be for the purpose of returning the product or parts

requiring repair. Do not return any material to Toptech without an RMA.

Contact Information for Americas:

Return Materials Department

Toptech Systems, Inc.

1124 Florida Central Pkwy

Longwood, FL 32750 USA

+1 (407) 332-1774

Contact Information for EMEA and Asia:

Return Materials Department

Toptech System NVs

Nieuwe weg 1- haven 1053

2070 Zwijndrecht, BELGIUM

+32 (0)3 250 60 60

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