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1797-IJ2
User Manual
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Rockwell Automation 1797-IJ2 User Manual

Installation Instructions
FLEX Ex Frequency Input Module
Catalog Number 1797-IJ2
Top ic Pa ge

About This Publication

This publication provides information on selecting, installing, configuring, and troubleshooting the 1797-IJ2 module.
Publication 1797-5.9 - June 2010
2 FLEX Ex Frequency Input Module
WARNING
ATTENTION
IMPORTANT
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 SGI-1.1 available from your local Rockwell Automation sales office or online at
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 we use notes to make you aware of safety considerations.
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 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 consequence
Identifies information that is critical for successful application and understanding of the product.
Labels may be on or inside the equipment to alert people that dangerous voltage may be present.
) describes some important differences between solid state
Publication
Labels may be on or inside the equipment to alert people that surfaces may reach dangerous temperatures.
1797-5.9 - June 2010
FLEX Ex Frequency Input Module 3
ATTENTION
1
2
3
4
5
6
7
Label Here or Under Here
40231
8

Module Installation

Install the Module
This module must be used with a 1797-TB3 or 1797-TB3S intrinsically-safe terminal base unit.
This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR Publication 11. Without appropriate precautions, there may be potential difficulties ensuring electromagnetic compatibility in other environments due to conducted as well as radiated disturbance.
This equipment is supplied as open-type equipment. It must be mounted within an enclosure that is suitably designed for those specific environmental conditions that will be present and appropriately designed to prevent personal injury resulting from accessibility to live parts. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this publication may contain additional information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.
Publication
1797-5.9 - June 2010
4 FLEX Ex Frequency Input Module
ATTENTION
20128-M
1. Rotate keyswitch (1) on terminal base unit (2) clockwise to position 1 as required for this type of module.
Do not change the position of the keyswitch after wiring the terminal base unit.
2. Make certain the flexbus connector (3) is pushed all the way to the left to
connect with the neighboring terminal base/adapter.
You cannot install the module unless the connector is fully extended.
3. Make sure the pins on the bottom of the module are straight so they will
align properly with the connector in the terminal base unit.
4. Position the module (4) with its alignment bar (5) aligned with the groove (6) on the terminal base.
5. Press firmly and evenly to seat the module in the terminal base unit. The module is seated when the latching mechanism (7) is locked into the module.
6. Make certain that you only connect terminal base units to other intrinsically safe system modules or adapters to maintain the integrity of the intrinsically-safe backplane.
7. Remove cap plug (8) and attach another intrinsically safe terminal base unit to the right of this terminal base unit if required.

Installation in Zone 1

This module must not be exposed to the environment. Provide a suitable metal enclosure. This module has a protection factor of IP20.
This module cannot be used in an intrinsically safe environment after it has been exposed to non-intrinsically safe signals.
Publication
1797-5.9 - June 2010
FLEX Ex Frequency Input Module 5

Installation in Zone 22

When the module is installed in Zone 22, the following cabinets must be used: IVK-ISRPI-V16LC; IVK-ISRPI-V8HYW; or IVK-ISRPI-V8LC. These cabinets can be purchased from Pepperl+Fuchs GmbH, Lilienthalstrasse 200, 68307 Mannheim, Germany. Information aavailable at http://www.pepperl-fuchs.com
The IS-RPI cabinets (type IVK2-ISRPI-V8LC, IVK2-ISRPI-V8HYW, or IVK2-ISPRI-V16LC) ensures the basic protection for the intrinsically safe apparatus of the FLEX Ex system for use in Zone 22. It corresponds with category 3D according to RL 94/9 EG and with the type label marked with the following information:
Pepperl+Fuchs GmbH 68307 Mannheim IVK2-ISRPI-V8LC (or IVK2-ISRPI-V8HYW or IVK2-ISRPI-V16LC)
II 3 D Ex tD A22 IP54 T70 °C X CE Serial (manufacturing) number Model
Electrostatic Charge
Protect the system against electrostatic charge. Post a sign near this module:
WARNING Avoid electrostatic charging. ADVERTÊNCIA! PREVENIR CONTRA O ACÚMULO DE CARGA
ELETROSTÁTICA.
For your convenience, a sign which can be cut out and posted is included in this installation instruction.
.
Publication
1797-5.9 - June 2010
6 FLEX Ex Frequency Input Module
WARNING
Removal and Insertion Under Power
These modules are designed so you can remove and insert them under power. However, take special care when removing or
inserting modules in an active process. I/O attached to any module being removed or inserted can change states due to its input/output signal changing conditions.
If you insert or remove the terminal base unit while backplane power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding.

European Community Directive Compliance

If this product has the CE mark it is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives.
EMC Directive
These products are tested to meet the Council Directive 2004/108/EC by applying the following standards:
EN 61000-6-4:2007, Electromagnetic Compatibility (EMC) - Part 6-4:
Generic Standard for Industrial Environments (Class A)
EN 61000-6-2:2005, Electromagnetic Compatibility (EMC) - Part 6-2:
Generic Standards - Immunity for Industrial Environments
EN61326-1:2006 (Industrial), Electrical Equipment For
Measurement, Control, and Laboratory Use - Industrial EMC Requirements
Publication
1797-5.9 - June 2010
FLEX Ex Frequency Input Module 7
IMPORTANT

ATEX Directive

These products are tested in conjunction with associated I/O modules to meet the Council Directive 94/9/EC (ATEX) Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres by applying the following standards:
EN60079-11:2007, Explosive atmospheres - Part 11 : equipment
protection by intrinsic safety "i"
EN60079-0:2006, Electrical apparatus for explosive gas atmospheres -
Part 0 : general requirements
EN 60079-26 : 2004, Electrical apparatus for explosive gas
atmospheres - Part 26 : construction, test and marking of Group II Category 1 G electrical apparatus
EN61241-0 : 2006, Electrical apparatus for use in the presence of
combustible dust - Part 0: General requirements
EN61241-11:2006, Electrical apparatus for use in the presence of
combustible dust – Part 11: Protection by intrinsic safety 'iD'
Inputs
The frequency input module has 2 input channels. Each input can accept inputs from magnetic pickups or proximity probes. Each input channel has 2 input selections: frequency input or gate input. Do not apply any
nonintrinsically safe signals to this module.
The channels in this module are electrically connected to each other. When using an intrinsically safe electrical apparatus according to EN
60079-11, the European directives and regulations must be followed.
When interconnecting several lines, you must consider the total accumulated power and check for intrinsic safety.
Publication
1797-5.9 - June 2010
8 FLEX Ex Frequency Input Module
Power Supply
flexbus
+V
Bus
uC
-V
V+
6V 3V +8V
50mV select
N
500/50mV GND
+8V N
GND
R NO R Com R NC
Solenoid
NAMUR
Prox
NAMUR
Prox
NAMUR
Prox
Valve
Audible
Alarm
Vort e x sensor
jumper for 50mV sensor
none for 500mV
magnetic
sensor
jumper for 50mV sensor
none for 500mV
50mV select 500/50mV
CH GND
CH GND
magnetic
sensor
*
*
***
*
For VORTEX and magnetic pickups only - jumper from GND to CH GND.
41302
Publication
1797-5.9 - June 2010
FLEX Ex Frequency Input Module 9
ATTENTION
WARNING
41506

Wire to a 1797-TB3 or 1797-TB3S Terminal Base Unit

Connect wiring to the terminal base as shown below.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
3V 6V V+ GND 50
16
Chassis GND
34
+V -V +V -V
Connections for Terminal Base 1797-TB3 shown
500/50
8V 8V
mV
mV
Channel 0 Frequency Input Channel 1 Frequency Input
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33
R0NOR0
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
Sel
GND N N GND
50
NC
No connections allowed to terminals 19, 30, 36, 38, 39, 47, 48, 49
500/50
mV
mV
Sel
Channel 0 Gate Input Channel 1 Gate Input
R0
COM
8V 8V
500/50mV50
500/50mV50
mV Sel
mV Sel
R1
COM
R1NOR1
For VORTEX signals and magnetic pickups only. Connect the channel ground terminals to the chassis ground terminals to
achieve the EMC protection class. Because, in this case, the intrinsically safe circuit is grounded, and you must check the installation requirements of the respective country for this context.
A
3V6VV+GNDNN
B
Chassis GND
NC
C

Wire the Module

Make wiring connections to the module terminal base unit according to the wiring table below.
Make certain that you power this module with an intrinsically safe power supply. Do not exceed the values listed in the specifications for this module.
If you connect or disconnect wiring while the field-side power is on, an electrical arc can occur. This could cause an explosion in hazardous location installations. Be sure that power is removed or the area is nonhazardous before proceeding.
Publication
1797-5.9 - June 2010
10 FLEX Ex Frequency Input Module
Type of Input
Channel 0 Terminations
Power Input
4
Channel 1 Terminations
5
GND
Power
Input
1
Frequency NAMUR Proximity Contact Switch
1
2
76 8 9
76 8 9 500 mV ac Magnetic Pickup 5 3 10 12 50 mV ac Magnetic Pickup
3
5 3 10 12
6V ac Vortex 2 1 3 13 14 12 3V ac Vortex 2 0 3 13 15 12 Gate
NAMUR Proximity Contact Switch
1
2
24 23 25 26
24 23 25 26 500 mV ac Magnetic Pickup 22 20 27 29 50 mV ac Magnetic Pickup
1 As defined by standard DIN 19234. 2 Add external resistor across field device for wire-off detection (0.4 mA) - (about 15 3 Add a jumper between 50 mV Sel and N (frequency - channel 0 = 4
gate - channel 0 = 21 to 23, channel 1 = 28 4 Connect cable shields to shield busbar or shield terminating feedthroughs. 5 All GND terminals are internally connected together.
3
22 20 27 29
…20 K).
to 26).
to 6, channel 1 = 9 to 11;
Relay Connections
Channel 0 Relay Connections Channel 1 Relay Connections
COM 37 COM 46 N.O. 17 N.O. 31 N.C. 18 N.C. 32
4
GND
5
Publication
1797-5.9 - June 2010
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