Toptech MultiLoad II DIV-2, RCU II DIV2 Installation Manual
MultiLoad II & RCU II
DIVISION 2 (DIV2)
Installation Guide
(Part # 6074)
DECEMBER 2018 TOPTECH SYSTEMS
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.
MultiLoad II & RCUII – Division 2 (DIV2)
Installation Guide
1124 Florida Central Parkway
Longwood, FL 32750
USA
Phone +1 (407).332.1774
Copyright Notice
Copyright © 2006 - 2018 Toptech Systems, Inc. All Rights Reserved.
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.
MultiLoad II/ RCU II DIV-2 Installation Guide: 20181218 - Part # 6074
EU Declaration of Conformity
Notified Body(ies)
NMi Certin B.V., Number 0122
Hugo de Grootplein 1
3314 EG Dordrecht
The Netherlands
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 II DIV2 (MID, YES), RCU II DIV2 (MID, NO)
Protective Systems: Nonincendive ‘ec ic’
Conformity has been demonstrated with reference to the following documentation:
(ATEX) EC test report for Project 06NK12831, Dated 2007-01-31
(MID) 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 Explosive atmospheres Part 0: Equipment—General requirements
EN60079-7:2015 Explosive atmospheres – Part 7: Equipment protection by increased safety «e»
EN-60079-11: 2012 Explosive atmospheres Part 11: Equipment protection by intrinsic safety "i"
Year of CE Marking: 2007
Name: William J. Porthouse Position: Director of Engineering & Production Date: 20-December-2018
Name Plate
Table of Contents
Overview ........................................................................................................................... 1
Chapter 1 General information & Warnings ............................................................ 3
Receiving and/or Returning Equipment ............................................................. 3 1.1
Safety Warnings ................................................................................................ 4 1.2
Electrostatic Discharge (ESD) Protection ................................ ........................... 5 1.3
FCC Note .......................................................................................................... 6 1.4
Chapter 2 Operating conditions and components ................................................... 7
Product Outline and dimensions ........................................................................ 7 2.1
MultiLoadII/ RCUII – DIV2 model - Picture .................................................. 7 2.1.1
MultiLoadII/ RCUII – DIV2 model – Dimensions .......................................... 8 2.1.2
2.1.2.1 Front View ................................................................................................ 8
2.1.2.2 Back View ................................................................................................ 9
2.1.2.3 Bottom View ........................................................................................... 10
2.1.2.4 Side View ............................................................................................... 11
Operating Characteristics: ............................................................................... 12 2.2
Chapter 3 Installing the MultiLoad II/RCUII DIV2 .................................................. 14
Tools Required ................................................................................................ 14 3.1
Installation ................................................................................................ 14 3.1.1
Servicing and Repair................................................................................. 14 3.1.2
Cover Closure and Bolt Replacement .............................................................. 14 3.2
Cable Entries .................................................................................................. 14 3.3
Mounting the MultiLoad II/ RCU II DIV-2 Enclosure: ........................................ 14 3.4
Drywall ...................................................................................................... 15 3.4.1
Wood ........................................................................................................ 15 3.4.2
Concrete or Cinder Block Walls ................................................................ 15 3.4.3
Mounting Height Considerations ............................................................... 15 3.4.4
Recommended Wire Sizes And Torque For All Terminal Blocks ...................... 17 3.5
Electrical Supply Connections ......................................................................... 17 3.6
AC Powered Models ................................................................................. 18 3.6.1
DC Powered Models ................................................................................. 18 3.6.2
Equipment Grounding ............................................................................... 19 3.6.3
Chapter 4 Data Communications Interface ........................................................... 20
Available Communications Protocol Selection and Wire spec .......................... 21 4.1
RS-422/485 .............................................................................................. 21 4.1.1
RS-232 ..................................................................................................... 21 4.1.2
Ethernet .................................................................................................... 22 4.1.3
Communication Connection Wiring .................................................................. 22 4.2
FCM I / FCM II Communications ( MultiLoad II Product Only) - COM 0 –4.2.1
Port – RS485 ....................................................................................................... 22
Host/TMS Communications ...................................................................... 23 4.2.2
4.2.2.1 COM 1 - RS-485 4-wire - Host/TMS Communications ............................ 23
4.2.2.2 COM 1 - RS-485 2-wire : Host/TMS Communications ............................ 24
4.2.2.3 COM 1 - RS-232 - Host/TMS Communications ...................................... 25
4.2.2.4 Ethernet – Host/TMS Communications .................................................. 26
Host Ticket Printer/Data Logger ................................................................ 27 4.2.3
4.2.3.1 COM2 – RS232 - Host Ticket Printer/Data Logger ................................. 27
Chapter 5 Connecting Field devices to the I/O Board .......................................... 30
Where to find the internal I/O board ................................................................. 30 5.1
Available I/O points per board .......................................................................... 31 5.2
Terminal arrangements per board .................................................................... 33 5.3
Digital Analog I/O board (IO_DA) ............................................................. 33 5.3.1
2 Meter I/O board ( IO-2M)........................................................................ 34 5.3.2
How to connect and wire field devices to the I/O boards .................................. 35 5.4
MultiLoad II Flow Meter and Control Valve Wiring ..................................... 36 5.4.1
MultiLoad II Additive Wiring: Outputs ........................................................ 37 5.4.2
MultiLoad II Additive Wiring: Inputs ........................................................... 38 5.4.3
MultiLoad II Analog Wiring ........................................................................ 39 5.4.4
5.4.4.1 RTD Wiring ............................................................................................ 39
5.4.4.2 MultiLoad II 4 – 20 mA Wiring ............................................................... 40
MultiLoad II AC Output Wiring ................................................................... 41 5.4.5
MultiLoad II AC Input Wiring ..................................................................... 42 5.4.6
MultiLoad II DC Permissive/Status Wiring ................................................. 43 5.4.7
MultiLoad II DC Output Wiring .................................................................. 44 5.4.8
MultiLoad II 2 Output Air Eliminator Wiring ................................................ 45 5.4.9
MultiLoad II Lectro Count Remote Display Wiring ................................... 46 5.4.10
RCU II DC Input Wiring ........................................................................... 47 5.4.11
RCU II AC Output Wiring ........................................................................ 48 5.4.12
RCU II DC Output Wiring ........................................................................ 49 5.4.13
Typical 1 meter application wiring example IP&E Drawing (electrical wiring 5.4.14
schedule) ............................................................................................................. 50
Chapter 6 Configurations ..................................................................................... 51
Switch Access Control ..................................................................................... 51 6.1
External Switch Access Control (MultiLoad II Only) .................................. 51 6.1.1
External Type 1 Program / W&M switches ................................................ 52 6.1.2
External Type 2 Program / W&M switches ................................................ 52 6.1.3
External Type 3 Program / W&M switches ................................................ 54 6.1.4
Internal Switch Access Control ................................................................. 54 6.1.5
MultiLoad II/ RCU II DIV-2 Keypad .................................................................. 56 6.2
Menus and Screens ......................................................................................... 57 6.3
Field Modification and Data Entry .................................................................... 58 6.4
MultiLoad II/ RCU II Preliminary Configuration ................................................. 59 6.5
Verify Communications Between MultiLoad II/ RCU II And I/O Board .............. 62 6.6
Using I/O Diagnostics ...................................................................................... 63 6.7
Chapter 7 Service and Repair .............................................................................. 65
Overview and Subassemblies .......................................................................... 65 7.1
CPU Subassembly Removal and Replacement: .............................................. 67 7.2
Display Subassembly Removal and Replacement: .......................................... 69
7.3
Flat Display Cable connector : Remove and Connect .............................. 69 7.3.1
Keypad Removal and Replacement: ................................................................ 70 7.4
Card Reader Removal and Replacement ........................................................ 71 7.5
Slotted Card Holder Mounted Prox Reader Removal and Replacement: 7.5.1
(Current Model) ................................................................................................ ... 71
Bracket Mounted (Obsolete) Prox Reader Removal and Replacement: .... 72 7.5.2
Slotted Card Holder Mounted Prox Reader HID (Obsolete) Removal and 7.5.3
Replacement: ...................................................................................................... 73
Slotted Card Holder Mounted TWIC Reader (Obsolete) Removal and 7.5.4
Replacement: ...................................................................................................... 74
W&M switch assembly Removal and Replacement ......................................... 75 7.6
Ice Shield Removal and Replacement: ............................................................ 76 7.7
Overview Parts List and Partnumbers : ............................................................ 77 7.8
Chapter 8 Hardware Revision History & Compatibilty.......................................... 79
Chapter 9 Revision History .................................................................................. 80
Hardware Revision .......................................................................................... 80 9.1
Manual Revision .............................................................................................. 81 9.2
Table of Figures
Figure 2.1 MultiLoad II (ML II) / Remote Control Unit II (RCU II) Division 2 Unit ............ 7
Figure 2.2 Unit Outline Drawing – Front View ....................................................................... 8
Figure 2.3 Unit Outline Drawing – Back View ....................................................................... 9
Figure 2.4 Unit Outline Drawing – Bottom View -2 Hole Base ......................................... 10
Figure 2.5 Unit Outline Drawing – Bottom View - 5 Hole Base ........................................ 10
Figure 2.6 Unit Outline Drawing – Side View ...................................................................... 11
Figure 3.1 Suggested Mounting Position ............................................................................. 16
Figure 3.2 Screen Visible Area .............................................................................................. 16
Figure 3.3 MultiLoad II/ RCU II AC Power Supply/Comm Board ..................................... 18
Figure 3.4 DC Power Connections ....................................................................................... 19
Figure 4.1 FCM / PCM Connections ..................................................................................... 23
Figure 4.2 RS485 4-Wire, Host to a Single MultiLoad II/ RCU II (recommended) ........ 23
Figure 4.3 RS485 4-Wire, Host to Multiple MultiLoad II/ RCU IIs .................................... 24
Figure 4.4 RS485 2-Wire, Host to a Single MultiLoad II/ RCU II...................................... 24
Figure 4.5 RS485 4-Wire, Host to Multiple MultiLoad II/ RCU IIs .................................... 25
Figure 4.6 RS232, Host to a Single MultiLoad II/ RCU II .................................................. 25
Figure 4.7 RS232, Host to Multiple MultiLoad II/ RCU IIs ................................................. 26
Figure 4.8 Ethernet Connections .......................................................................................... 26
Figure 4.9 Ticket Printer / Data Logger Connections with Handshake ........................... 27
Figure 4.10 Ticket Printer / Data Logger Connections without Handshake ..................... 28
Figure 4.11 PTB Printer Connection with Handshake......................................................... 28
Figure 5.2 2 Meter I/O Board Terminal Block Assignments .............................................. 34
Figure 6.1 Type 1 Program / W&M Switches ...................................................................... 52
Figure 6.2 Type 2 Program / W&M Switches ...................................................................... 52
Figure 6.3 Type 3 Program / W&M Switch with Magnetic Bolts ....................................... 54
Figure 6.4 CPU DIP Switches for Program and W&M Access (rev 1.0) ......................... 56
Figure 6.5 CPU DIP Switches for Program and W&M Access (rev 2.0) Field Switch Access Control
(MultiLoad II Only) ....................................................................................................................... 56
Figure 7.1 MultiLoad II (ML II) / Remote Control Unit II (RCU II) Division 2 Unit .......... 65
Figure 7.2 ML II/ RCU II Div2 Unit Assembly Slotted Card Holder with MT11 .............. 66
Figure 7.3 CPU Board, Power Supply / Comm Board, I/O Board with Chassis ............ 67
Figure 7.4 ML II/ RCU II Div2 Unit Cover Display Assembly ............................................ 69
Figure 7-5 Cam lock in the Open (Up) position Figure 7-6 Cam lock in the closed (down) 70
Figure 7-7 Display Cable Insertion ........................................................................................ 70
Figure 7.8 ML II/ RCU II Div2 Unit Cover Keypad Assembly ............................................ 71
Figure 7.9 Exploded View Front Cover Assembly: Slotted Card Holder with MT11 ..... 72
Figure 7.10 ML II/ RCU II Div2 Cover Assembly Prox Bracket Mount Thinline II (Obsolete) 73
Figure 7.11 ML II/ RCU II Div2 Cover with Slotted Card Holder Thinline II (Obsolete) .. 74
Figure 7.12 ML II/ RCU II Div2 Unit Assembly Prox/TWIC Slotted Card Holder RP15 (Obsolete)
75
Figure 7.13 ML II/ RCU II DIV2 W&M Assembly .................................................................. 76
Figure 7.14 Ice Shield Assembly Installation Slotted Card Holder .................................... 77
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 outline and dimensions, as well as operating
characteristics of the unit.
3.Installing the MultiLoad II/RCUII –
DIV2
This chapter covers installation considerations and instructions for the
Division 2 (DIV2) Model.
4.Data Communication Interface
This chapter reviews hardware connections and communication
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 Boards.
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/
RCUII DIV-2 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.
Overview
This document is designed to guide individuals installing MultiLoad II/ RCU II DIV2 equipment, engineering
firms developing site electrical drawings, and users troubleshooting system operations such as managers,
system administrators, technicians, and meter proving personnel.
The following table provides an informative summary of the material available in this guide:
1
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.
The following keys allow the user to locate information needed in this guide:
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/MultiLoad DIV2 installation information only. For information about base MultiLoad
firmware, please consult the MultiLoad II 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.
2
Chapter
1
Chapter 1 General Information & Warnings
Receiving and/or Returning Equipment 1.1
At receipt, the MultiLoad II/ RCU II 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
Prior to installation, the MultiLoad II/ RCU II should be stored in its packing case and be protected from
damage due to handling and adverse weather conditions.
3
Safety Warnings 1.2
NORTH AMERICAN INSTALLATIONS:
▲ This equipment is suitable for use in Class I, Division 2, Groups C and D locations, OR non-
hazardous locations.
▲ WARNING: EXPLOSION HAZARD. Do not disconnect equipment unless power has been
removed or the area is known to be non-hazardous.
▲ WARNING: EXPLOSION HAZARD. Substitution of components may impair suitability for
Class I, Division 2.
▲ WARNING: EXPLOSION HAZARD. The area must be known to be non-hazardous before
servicing/replacing the unit and before installing.
▲ CAUTION: Battery may explode if mistreated. DO NOT RECHARGE, DISASSEMBLE, OR
DISPOSE OF IN FIRE.
▲ CAUTION: Field wiring must have a temperature rating of 75 °C or greater.
▲ A battery is soldered to the processor board for retention of data, time, and date. This battery
should last more than ten years. Please return the board to Toptech Systems for battery
replacement. This battery must be replaced with Matsushita Electric, model BR2477A
only. Use of another battery may present a risk of fire or explosion.
▲ The installation of this product must be in conformity with NFPA 70 (US National Electric Code)
or CSA C22.1 (Canadian Electrical Code) as appropriate.
INSTALLATIONS NORD-AMÉRICAINES (FRANÇAIS)
▲ Cet équipement est compatible pour une installation en Classe I, Division 2, Groupes C & D ou
les emplacements non dangereux..
▲ AVERTISSEMENT: RISQUE D'EXPLOSION. Avant de déconnecter l’ équipement, couper
le courant ou s’assurer que l’emplacement est designe non dangereux.
▲ AVERTISSEMENT: RISQUE D'EXPLOSION. La substitution de composants peut render
ce materiel inacceptable pour les emplacements de Classe I, Division 2.
▲ AVERTISSEMENT: RISQUE D'EXPLOSION. Avant réparer ou remplacer l’équipement et
avant d’installer s’assurer que l’emplacement est designe non dangereux.
▲ PRUDENCE: La pile peut exploser si elle est maltraitée. NE PAS RECHARGER, NE PAS
DÉMONTER, ET NE PAS JETER DANS LE FEU.
▲ PRUDENCE: Câblage de terrain doit avoir un classement de température de +75 °C ou
plus.
▲ Une pile est soudée à la carte processeur pour la conservation des données, de l'heure, et de la
date. Cette pile devrait durer pendant plus que dix ans. Veuillez retourner la carte processeur à
Toptech Systems pour le remplacement de la pile. Remplacez la pile avec Matsushita
Electric, modèle BR2477A seulement. Utiliser une autre pile peut présenter un risque
d'incendie ou d'explosion.
▲ L’installation de ce produit doit se conformer avec le Code National d'Électricité, NFPA 70 ou le
Code Canadien d'Électricité, CSA C22.1 comme appropriée.
4
ATEX AND IECEX INSTALLATIONS:
▲ This equipment is suitable for use in EX Zone 2 Group IIB Locations, OR non-hazardous
locations.
▲ WARNING: Do not open when an explosive atmosphere may be present.
▲ WARNING: Do not disconnect equipment unless power has been removed or the area is
known to be non-hazardous.
▲ WARNING: EXPLOSION HAZARD. The area must be known to be non-hazardous before
servicing/replacing the unit and before installing.
▲ CAUTION: Battery may explode if mistreated. DO NOT RECHARGE, DISASSEMBLE, OR
DISPOSE OF IN FIRE.
▲ CAUTION: Field wiring must have a temperature rating of 75 °C or greater.
▲ A battery is soldered to the processor board for retention of data, time, and date. This battery
should last more than ten years. Please return the board to Toptech Systems for battery
replacement. This battery must be replaced with Matsushita Electric, Model BR2477A
only. Use of another battery may present a risk of fire or explosion.
▲ The installation of this product must be in conformity with IEC/EN 60079-14.
Electrostatic Discharge (ESD) Protection 1.3
The MultiLoad II/ RCU II contains electronic components and assemblies subject to damage by ESD.
The MultiLoad II/ RCU II was designed to protect against ESD while the unit is closed and in normal
operation. Proper handling procedures must be observed during the removal, installation, repair and
other handling of printed circuit board assemblies, electronic devices and components. This includes:
1) Service to be performed by authorized personnel only.
2) The person performing the service must be grounded by an ESD grounding strap and
connected to ground.
3) While performing maintenance or repair, touch an unpainted metal of the MultiLoad II/ RCU
II surface prior to touching or handling any printed circuit boards or electronic components.
4) Printed circuit board assemblies must be placed in and transported in conductive bags or
other conductive containers.
5) Printed circuit boards must not be removed from the conductive container until time of use.
6) All other “best” practices for protecting devices from ESD must be observed.
5
FCC Note 1.4
This equipment complies with the limits for a Class A Digital Device, pursuant to part 15 of the FCC
Rules. These limits are designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be required to correct the
interference at theirexpense.
Modifications not approved by the manufacturer could void the user's authority to operate the
equipment under FCC rules.
6
Chapter
2
Chapter 2 Operating Conditions and Components
Product Outline and dimensions 2.1
MultiLoad II/ RCU II – DIV2 Model - Picture
2.1.1
Figure 2.1 MultiLoad II (ML II) / Remote Control Unit II (RCU II) Division 2 Unit
7
MultiLoad II/ RCU II – DIV2 Model – Dimensions
2.1.2
The dimensions in this section are indicated in inches and millimeters (in parenthesis).
2.1.2.1 Front View
Figure 2.2 Unit Outline Drawing – Front View
8
RCUII/ ML II Div 2
MOUNTING TEMPLATE
2.1.2.2 Back View
Figure 2.3 Unit Outline Drawing – Back View
9
2.1.2.3 Bottom View
2.1.2.3.1 2- Hole Base
2 x 1” NTP Aluminum HUBS
Figure 2.4 Unit Outline Drawing – Bottom View -2 Hole Base
2.1.2.3.2 5- Hole Base (Europe)
3xM20 and 2xM25
Figure 2.5 Unit Outline Drawing – Bottom View - 5 Hole Base
10
2.1.2.4 Side View
Figure 2.6 Unit Outline Drawing – Side View
11
Characteristics
Description
Operating Voltage
85 - 250 Vac, 47-63 Hz, 300 – 150 mA
Voltage Option
9 - 30 Vdc, 600mA
Operating Temperature
40°F to 140°F: -40°C to 60°C
Enclosure
Type 4, IP65
ETL Listed (US, Canada) Class 1, Division 2, Groups C & D, T4
Weight
24 lbs : 11 kg
Display
Color 8.4” Diagonal VGA
Prox Card Reader
Captive or Non-captive: supports TWIC
Lockable External W&M Bolts
Program Access, Weights & Measures Parameter Access (on MultiLoad
only)
Keypad
47 Key Alpha/ Numeric Membrane Switch Keypad
Communications
3 serial ports (1 RS-485, 2 User Selectable RS-232 or RS-485)
1 Ethernet port 10/100 Mbps
Type I/O
Digital/ Analog I/O
Quantity, Location
2 Meter I/O Quantity,
Location
Electrical Rating
AC Outputs:
5 (TB1)
8 (TB2, TB3)
12 - 250 Vac rms, 500 mA (per point), TB1
AC Inputs
0
2 (TB1)
90 - 250Vac
DC Outputs:
3 (TB3)
2 (TB9)
0 - 30 Vdc, 600 mA (per point), TB3
DC Inputs:
5 (TB2-Right)
(2 High Speed)
6 (TB7, TB8)
(4 High Speed)
5 - 30Vdc, TB2B
Dual Channel flow meter inputs (1-5000Hz)
Miscellaneous signal inputs
12Vdc Source:
167mA Max Load
(TB2-Left)
250mA Max Load
(TB6)
Isolated Power Supply
Power for flow meter pulsers or preamps
RTD Input:
1 (TB4)
2 (TB4, TB5)
100-ohm platinum, four wire
Coefficient 0.00385 Ohm/Ohm/°C
Analog Input
1 (TB5)
0
4 - 20mA, 1.5V maximum burden
Analog Output
1 (TB6)
0
4 - 20mA, Requires 12Vdc – 30Vdc Supply
Operating Characteristics 2.2
The Remote Control Unit – Division 2 (DIV2) Model has the following characteristics:
Internal I/O Options: Two versions of an optional internal I/O board are available:
- the Digital/ Analog I/O board.
- the 2 Meter I/O board.
The quantity and electrical ratings of each I/O are described in the table below:
12
I/O TYPE
Voltage
Freq
Dissipation
per Point
Digital/ Analog I/O
2 Meter I/O
# I/O
TOTAL
Dissipation
# I/O
TOTAL
Dissipation
[V]
[Hz]
[W] [W]
[W]
ACOUT
230
50
0.36 5 1.78
8
2.85
120
60
0.32 5 1.62
8
2.60
ACIN
230
50
0.73 0 2 1.46
120
60
0.44 0 2 0.89
DCOUT
5
--
0.02 3 0.07
2
0.05
12
--
0.02 3 0.07
2
0.05
24
--
0.02 3 0.07
2
0.05
30
--
0.02 3 0.07
2
0.05
DCIN
5
--
0.00 6 0.03
6
0.03
15
--
0.06 6 0.33
6
0.33
24
--
0.16 6 0.97
6
0.97
30
--
0.23 6 1.41
6
1.41
4-20 mA Input
--
--
0.03 1 0.03
0
--
Internal I/O Heat Dissipation:
*I/O points dissipating 1 mW or less are not reported
13
Chapter
3
Chapter 3 Installing the MultiLoad II/RCUII DIV2
Tools Required 3.1
Installation
3.1.1
- ¼” Flat Head screw driver is required for tightening cover screws.
Servicing and Repair
3.1.2
- #2 Philips screwdriver for circuit board removal.
- ¼” socket wrench for CPU circuit board removal and a 5/16” socket wrench for display board
removal.
- #2 Philips screwdriver for removal of keypad plat screws.
Cover Closure and Bolt Replacement 3.2
When closing the cover, gently lift on the bottom of the cover when in position for starting one or two of
the right corner screws. This is done to assist the alignment of the cover and base holes for starting the
screws. The enclosure cover is secured to the housing by four 6mm slotted/Philips screws. When the
screws are removed, the front cover will swing left and hang from its hinges. The screws are captive
and will remain with the cover.
Cable Entries 3.3
Two 1” NPT conduit hubs are provided for the installation of conduit and cables.
No hubs are provided with the 5 hole base.
Mounting the MultiLoad II/ RCU II DIV-2 Enclosure 3.4
The DIV-2 enclosure should be located in a shaded area. Direct sunlight can increase internal
temperature to greater than 140°F or 60°C.
14
Exterior dimensions of the standard MultiLoad II/ RCU II DIV-2 enclosure are shown in Figures 2.2 –
2.6. There is only one mounting orientation possible; reference Figure 2.2 for the MultiLoad II/ RCU II
DIV-2 Mounting Template. The cable entries are located at the bottom of the unit.
Appropriate fasteners must be selected to support the minimum weight of 24 lbs (11 kg). Toptech
offers the following mounting suggestions for three typical surfaces: drywall, wood, or concrete/cinder
block.
Drywall
3.4.1
Insert four fasteners through the corner mounting holes, shown in Figure 2.2. For the fasteners, use #14 x 1
¾” (M6 x 40 mm) Phillips pan head sheet metal screws inserted in #14 (M6) self-tapping nylon anchors.
Place one #14, 3/8” OD (M6, 10 mm 0D) flat washer under the head of the screw before inserting the screw
into the mounting hole.
Wood
3.4.2
Follow the instructions above for Drywall installation, substituting the #14 x 1¾” (M6 x 40 mm) wood screws
for the four sheet metal screws. Do not use the self-tapping nylon inserts.
Concrete or Cinder Block Walls
3.4.3
Follow the instructions above for Drywall installation, substituting the a 1/4 ” x1 3/4” Tapcon masonry fastener
for the four sheet metal screws. Do not use the self-tapping nylon inserts.
Drill pilot holes for the Tapcons using a 3/16” x 3 ½” masonry drill bit.
Mounting Height Considerations
3.4.4
When mounting the enclosure, be aware of the limitations that the cover places on screen visibility.
Because the display is inset about an inch [25mm] from the surface of Div-2 and SMP units and the
screen is inset an inch-and-one-half [39mm] in the EXL unit, the enclosure should be mounted so that
top of the screen’s visible area is at eye level of the tallest operator. Figure 3.1 shows the visible area
at arm’s length and the distance from the ground to the top mounting hole location for a six-foot [1.8m]
tall user. Figure 3.2 shows the offset of the top of the screen’s visible area from the top mounting bolt
and the depth of the screen within the unit.
15
Figure 3.1 Suggested Mounting Position
Figure 3.2 Screen Visible Area
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Recommended Wire Sizes and Torque for All Terminal Blocks 3.5
Three sizes of terminal blocks are used in the MultiLoad II/ RCU II products: 7.62 mm pitch (supply
power), 5.08 mm pitch (line voltage switching), and 3.81 mm pitch (serial communication, analog or dc
voltages). The 7.62 and 5.08 mm terminal blocks have an allowable wire size of 24 AWG – 12 AWG
and should be tightened to 0.55 Nm +/-0.05 Nm (5 lb in +/- 0.4 lb in).
The 3.81 mm terminal blocks have an allowable wire size of 28 AWG – 16 AWG and should be
tightened to 0.23 Nm +/-0.02 Nm (2 lb in +/- 0.2 lb in).
Electrical Supply Connections 3.6
The MultiLoad II/ RCU II may be equipped for either 85 -250Vac or 24Vdc operation. Verify the
power type before making any connections.
Fiel Wiring must be rated 75°C or greater.
WARNING: If there are unused holes, blanking elements appropriate for the type enclosure
must be used.
Do not route AC and DC wiring in the same conduit.
All wiring must enter the MultiLoad II/ RCU II enclosure through conduit via entries in the bottom of the
enclosure. All conduits must be terminated at the enclosure by use of appropriately-rated conduit hubs
or glands.
Wires must be stripped ¼” and fully inserted into terminal block with no bare conductor exposed.
Review section 3.5 for recommended wire size and torque values.
Both ac and dc input models require a safety ground connection as described in section 3.6.3 below.
A service loop is recommended for all wires and cables entering the enclosure.
Do not allow service loop cables to overlap the circuit boards. Coil any cable length in the
bottom of the enclosure. Keep AC wiring separated from all other wiring in the enclosure by use
of the supplied partitions (see wire partition instructions below).
Wiring must comply with all local electrical codes.
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AC Powered Models
3.6.1
Provide over current protection using a 15 Amp circuit breaker or equivalent. The breaker also serves
as a means of disconnection from the operating supply as required by UL/ISA/IEC 61010-1 and
CAN/CSA-C22.2 NO. 61010-1. The disconnected device may not be blocked or be made difficult to
operate by the MultiLoad II/ RCU II or any other device. Note that installation of disconnects are
typically prohibited in Class I, Division 2 locations.
Power required: 85 – 250 Vac, 47 – 63 Hz, 300 mA @ 85Vac/ 150 mA @250Vac. The power
connector is located in the right hand, bottom corner of the Power Supply/Communication board as
shown in figure 3.3. Select supply wire rated 300V or better with a flammability rating of at least VW-1.
Figure 3.3 MultiLoad II/ RCU II AC Power Supply/Comm Board
DC Powered Models
3.6.2
The MultiLoad II/ and RCU II is optionally available with a 24 Vdc power supply. The power source
used to supply the MutliLoad II/RCUII must be rated 9 – 30 Vdc SELV, Limited Energy (Class 2). The
rated supply input current is 600mA. The supply should be protected by a 1.5 Amp fuse.
18
Wire gauge (AWG)
Distance (feet)
24
50
22
100
20
150
18
250
16
400
Do not connect the power supply dc common to earth ground.
The 3-position terminal block is located in the right hand corner of the power supply/communication
board.
Figure 3.4 DC Power Connections
Equipment Grounding
3.6.3
A safety ground should be attached to terminal block TB1 (on both ac and dc input power models) to
maintain electrical safety in the event of a fault condition. Follow the terminal block wiring instructions
in section 3.6. Keep the required tightening torque in mind (section 3.5).
Wiring guidelines for using 24 Vdc power
supply:
The external ground connection is not provided for the attachment of the protective conductor (the
safety ground). Rather, it is provided only as a supplemental bonding connection where local
authorities permit or require such a connection: for example, as a means of equipotentiality. The wire
connection is on the bottom right exterior surface. The following wire sizes may be used: 10 AWG
(5.26 mm2) or 11 AWG (4.17 mm2).
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