Rockwell Automation 1758-RTU202 Installation Instructions
Installation Instructions
DataSite Natural Gas Flow Meter and Remote
Terminal Unit
Catalog Numbers 1758-FLO301, 1758-FLO302,
1758-RTU201, 1758-RTU202
Topic Page
Important User Information 2
Environment and Enclosure 3
Hazardous Location Considerations 3
Overview 4
Controller Description 5
Mounting the Controller 6
DIN Rail Mounting 7
Power Source Requirements 9
Wiring for Power Supply Input 9
Wire the Controller for HART Communication 14
Ground the Module 15
Status Indicators 20
Specifications 21
Additional Resources 26
2 DataSite Natural Gas Flow Meter and Remote Terminal Unit
WARNING
IMPORTANT
ATTENTION
SHOCK HAZARD
BURN HAZARD
Important User Information
Solid state equipment has operational characteristics differing from those of electromechanical equipment.
Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication
available from your local Rockwell Automation sales office or online at
SGI-1.1
http://literature.rockwellautomation.com
equipment and hard-wired electromechanical devices. Because of this difference, and also because of the
wide variety of uses for solid state equipment, all persons responsible for applying this equipment must
satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages
resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many
variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot
assume responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits,
equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell
Automation, Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
) describes some important differences between solid state
Publication 1758-IN001C-EN-P - June 2011
Identifies information about practices or circumstances that can cause an explosion in
a hazardous environment, which may lead to personal injury or death, property
damage, or economic loss.
Identifies information that is critical for successful application and understanding of
the product.
Identifies information about practices or circumstances that can lead to personal injury
or death, property damage, or economic loss. Attentions help you identify a hazard,
avoid a hazard and recognize the consequences.
Labels may be on or inside the equipment (for example, drive or motor) to alert people
that dangerous voltage may be present.
Labels may be on or inside the equipment (for example, drive or motor) to alert people
that surfaces may reach dangerous temperatures.
DataSite Natural Gas Flow Meter and Remote Terminal Unit 3
ATTENTION
ATTENTION
ATTENTION
WARNING
Environment and Enclosure
Do not remove the protective debris strip until after the module and all other equipment
in the panel near the module are mounted and wiring is complete. Once wiring is
complete, remove protective debris strip. Failure to remove strip before operating can
cause overheating.
Electrostatic discharge can damage semiconductor devices inside the module. Do not
touch the connector pins or other sensitive areas.
To comply with UL restrictions, the product and any connected devices must be powered
from a source compliant with the following:
Class 2 or Limited Voltage/Current.
Hazardous Location Considerations
This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D locations only.
The following WARNING statement applies to use in hazardous locations.
Use only the following communication cables in Class I, Division 2 hazardous locations.
EXPLOSION HAZARD
• Substitution of components may impair suitability for Class I, Division 2.
• Do not replace components or disconnect equipment unless power has been
switched off.
• Do not connect or disconnect components unless power has been switched off.
• This product must be installed in an enclosure. All cables connected to the product
must remain in the enclosure or be protected by conduit or other means.
• All wiring must comply with N.E.C. article 501-10(b).
Environment Classification Communication Cables
Class I, Division 2 Hazardous Environment 1747-CP3 RS-232 Serial Communications Cable
Publication 1758-IN001C-EN-P - June 2011
4 DataSite Natural Gas Flow Meter and Remote Terminal Unit
WARNING
Environnements dangereux
Cet équipement est conçu pour une utilisation en environnements dangereux de Classe I,
Division 2, Groupes A, B, C, D. La mise en garde suivante s’applique à utilisation en
environnements dangereux.
DANGER D’EXPLOSION
• La substitution de composants peut rendre cet équipement impropre à une
utilisation en environnement de Classe I, Division 2.
• Ne pas remplacer de composants ou déconnecter l’équipement sans s’être assuré
que l’alimentation est coupée.
• Ne pas connecter ou déconnecter des composants sans s’être assuré que
l’alimentation est coupée.
• Ce produit doit être installé dans une armoire. Tous les câbles connectés à
l’appareil doivent rester dans l’armoire ou être protégés par une goulotte ou tout
autre moyen.
• L’ensemble du câblage doit être conforme à la réglementation en vigueur dans les
pays où l’appareil est installé.
Utilisez uniquement les câbles de communication suivants dans les environnements
dangereux de Classe I, Division 2.
Classification des environnements Câbles de communication
Environnement dangereux de Classe I, Division 2 1747-CP3 RS-232 Serial Communications Cable
Overview
DataSite controllers are suitable for use in an industrial environment when installed in
accordance with these instructions. Specifically, this equipment is intended for use in clean,
dry environments (Pollution degree 2
(2)
Category II
(IEC 60664-1).
Install your DataSite unit using these installation instructions.
(1)
Pollution Degree 2 is an environment where, normally, only non-conductive pollution occurs except that occasionally a
temporary conductivity caused by condensation shall be expected.
(2)
Over Voltage Category II is the load level section of the electrical distribution system. At this level transient voltages are
controlled and do not exceed the impulse voltage capability of the product’s insulation.
(3)
Pollution Degree 2 and Over Voltage Category II are International Electrotechnical Commission (IEC) designations.
Publication 1758-IN001C-EN-P - June 2011
(1)
(3)
) and with circuits not exceeding Over Voltage
DataSite Natural Gas Flow Meter and Remote Terminal Unit 5
P11P10H2-H2+H1-H1+H0-H0+ P12
PI
COM
AOV+AOV-AO0AOV- AO1 AOV-
ON
0
1
2
44376
1 2 3
45678
9
10
44379
Controller Description
DICOM
DI0
DI1 DI2 DI3 DI4 DI5 DI6 DI7
V+ V- AI0 AI1 AI2 AI3 AI4 AI5 V- DO0DO1 DO2 DO3 V
+
WAKEUP
_
DO+VDO-
Item Description
1 Discrete Inputs and wake up connectors
2 Status indicators
3 Ethernet connector
4 RS 232 COM 2 connector
5 RS 232 COM 1 connector
6 RS 485 COM 1 connector
7 Discrete Output connectors
8 Power Input and Analog Input connectors
9 HART, Pulse Input, and Analog Output connectors
10 Pulse Input Filter switches
Data
_
+
Publication 1758-IN001C-EN-P - June 2011
6 DataSite Natural Gas Flow Meter and Remote Terminal Unit
ATTENTION
1758-FLO301, 1758-FLO302, 1758-RTU201, 1758-RTU202
13.0 cm
(5.12 in.)
5.6 cm
(2.20 in.)
21.3 cm
(8.395 in.)
44374
Mounting the Controller
Most applications require installation in an industrial enclosure to reduce the effects of
electrical interference and environmental exposure. Locate your controller as far as possible
from power lines, load lines, and other sources of electrical noise such as hard-contact
switches, relays, and AC motor drives. For more information on proper grounding guidelines,
see the Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1
.
You can mount the controller either horizontally or vertically on DIN rails, but horizontal
mounting is recommended for thermal considerations.
Be careful of metal chips when drilling mounting holes for your controller or other
equipment within the enclosure or panel. Drilled fragments that fall into the controller
could cause damage.
Dimensions
Publication 1758-IN001C-EN-P - June 2011
DataSite Natural Gas Flow Meter and Remote Terminal Unit 7
IMPORTANT
To p
Bottom
Side
Side
44375
Controller Spacing
When mounting the controller, allow 25 mm (1 in.) of space on all sides for adequate
ventilation, as shown below.
DIN Rail Mounting
A small Phillips screwdriver is required for the installation or removal of the controller. The
controller can be mounted to EN50022-35 x 7.5 DIN rails.
Follow these steps to install your controller on the DIN rail.
D
1. Mount your DIN rail.
Make sure that the placement of the controller on the DIN rail meets the
recommended spacing requirements.
2. Loosen the two clamp screws until the clamp can slide out.
Do not remove the screws from the clamp, otherwise they will fall into the
chassis.
3. Place the controller onto the DIN rail, using the rail hooks on the back of the
controller.
Publication 1758-IN001C-EN-P - June 2011
8 DataSite Natural Gas Flow Meter and Remote Terminal Unit
44538 44539 44540
DIN rail
12 3
4. Slide the clamp out while pushing the controller fully onto the DIN rail (1). When the
controller is properly aligned on the DIN rail (2), slide the clamp in, so that it makes
direct contact with the lower edge of the DIN rail (3).
5. Tighten the clamp screws.
Follow these steps to remove your controller from the DIN rail.
1. Loosen the two clamp screws until the clamp can slide out, taking care not to dislodge
the clamp screws from the clamp.
2. Remove the controller.
Publication 1758-IN001C-EN-P - June 2011
DataSite Natural Gas Flow Meter and Remote Terminal Unit 9
ATTENTION
WARNING
V-V+
Ground 12V DC
321
44380
Power Source Requirements
The DataSite modules (1758-FLO301, 1758-FLO302, 1758-RTU201, 1758-RTU202) must
be powered by a National Electrical Code (NEC) or Canadian Electrical Code (CEC) Class 2
power source when used in locations covered by Underwriters Laboratories.
In locations governed by International Electrotechnical Commission (IEC) or EN standards,
a Safety Extra Low Voltage (SELV) power source must be used.
Wiring for Power Supply Input
Refer to Power Source Requirements for details on wiring.
Publication 1758-IN001C-EN-P - June 2011