Rockwell Automation Allen-Bradley 1794-IJ2XT Installation Instructions Manual

Installation Instructions
Original Instructions
FLEX I/O 2-input Frequency Modules
Catalog Numbers 1794-IJ2, 1794-IJ2XT
Topic
Summary of Changes
Environment and Enclosure
Prevent Electrostatic Discharge
European Hazardous Location Approval
North American Hazardous Location Approval
Install Your Frequency Input Module
Connecting Wiring for the 1794-TB3G and 1794-TB3GS Terminal Base Unit
Resolution and Accuracy
Interpret Status Indicators
Diagnostics
Specifications
Page
1
3
3
4
4
5
5
7
8
9
10
Summary of Changes
This publication contains the following new or updated information. This list includes substantive updates only and is not intended to reflect all changes.
Topic
Updated template
Removed discontinued Catalog Number 1794-IJ2K
Updated Environment and Enclosure
Updated European and IEC Hazardous Location Approvals
Updated Special Conditions for Safe Use
Updated temp codes
Updated environmental specifications
Updated certifications
Page
throughout
throughout
3
4
4
11
11-12
12
FLEX I/O 2-input Frequency Modules Installation Instructions
ATTENTION: Read this document and the documents listed in the Additional Resources section about installation, configuration and operation of this equipment before you install, configure, operate or maintain
this product. Users are required to familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws, and standards.
Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are required to be carried out by suitably trained personnel in accordance with applicable code of
practice. If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
岤䠑㖈㸝鄳ծꂁ縨ծ乼⡲ㄤ絶䫡劥❡ㅷ⵸霼ꢓ靀劥俒咓⟄⿺  Ⱖ➭餴彂  鿈ⴔ⴩ⴀ涸剣Ⱒ霃㢊㸝鄳ծꂁ縨ㄤ乼⡲涸湱䎾俒咓կꤑ✫䨾剣鷓欽錞薴ծ岁䖒ㄤ叻ⲥ
涸湱Ⱒ銳宠⛓㢪欽䨪鵮䗳곢擿䜪㸝鄳ㄤ䱹絁霹僈կ
㸝鄳ծ靈侮ծ䫏鵘ծ⢪欽ծ絆鄳ծ䬒⽸ㄤ絶䫡瘝ぐ고乼⡲䗳곢歋絑鵂鷓䔲雲絅涸⚁⚌➃プ䭽撑鷓欽涸乼⡲錞薴㹊倶կ
㥵卓劢䭽撑ⵖ鸣㉁䭷㹁涸倰䒭⢪欽霪霃㢊ⴭ〳腊⠔䰀㹲霃㢊䲿⣘涸⥂䫡կ
ATENCIÓN: Antes de instalar, configurar, poner en funcionamiento o realizar el mantenimiento de este producto, lea este documento y los documentos listados en la sección Recursos adicionales acerca de la
instalación, configuración y operación de este equipo. Los usuarios deben familiarizarse con las instrucciones de instalación y cableado y con los requisitos de todos los códigos, leyes y estándares vigentes.
El personal debidamente capacitado debe realizar las actividades relacionadas a la instalación, ajustes, puesta en servicio, uso, ensamblaje, desensamblaje y mantenimiento de conformidad con el código de
práctica aplicable. Si este equipo se usa de una manera no especificada por el fabricante, la protección provista por el equipo puede resultar afectada.
ATENÇÃO: Leia este e os demais documentos sobre instalação, configuração e operação do equipamento que estão na seção Recursos adicionais antes de instalar, configurar, operar ou manter este produto.
Os usuários devem se familiarizar com as instruções de instalação e fiação além das especificações para todos os códigos, leis e normas aplicáveis.
É necessário que as atividades, incluindo instalação, ajustes, colocação em serviço, utilização, montagem, desmontagem e manutenção sejam realizadas por pessoal qualificado e especializado, de acordo com
o código de prática aplicável.
Caso este equipamento seja utilizado de maneira não estabelecida pelo fabricante, a proteção fornecida pelo equipamento pode ficar prejudicada.
ВНИМАНИЕ: Перед тем как устанавливать, настраивать, эксплуатировать или обслуживать данное оборудование, прочитайте этот документ и документы,
перечисленные в разделе «Дополнительные ресурсы». В этих документах изложены сведения об установке, настройке и эксплуатации данного оборудования.
Пользователи обязаны ознакомиться с инструкциями по установке и прокладке соединений, а также с требованиями всех применимых норм, законов и
стандартов.
Все действия, включая установку, наладку, ввод в эксплуатацию, использование, сборку, разборку и техническое обслуживание, должны выполняться
обученным персоналом в соответствии с применимыми нормами и правилами.
Если оборудование используется не предусмотренным производителем образом, защита оборудования может быть нарушена.
:
ACHTUNG: Lesen Sie dieses Dokument und die im Abschnitt „Weitere Informationen“aufgeführten Dokumente, die Informationen zu Installation, Konfiguration und Bedienung dieses Produkts enthalten, bevor Sie
dieses Produkt installieren, konfigurieren, bedienen oder warten. Anwender müssen sich neben den Bestimmungen aller anwendbaren Vorschriften, Gesetze und Normen zusätzlich mit den Installations- und
Verdrahtungsanweisungen vertraut machen.
Arbeiten im Rahmen der Installation, Anpassung, Inbetriebnahme, Verwendung, Montage, Demontage oder Instandhaltung dürfen nur durch ausreichend geschulte Mitarbeiter und in Übereinstimmung mit den
anwendbaren Ausführungsvorschriften vorgenommen werden.
Wenn das Gerät in einer Weise verwendet wird, die vom Hersteller nicht vorgesehen ist, kann die Schutzfunktion beeinträchtigt sein.
ATTENTION : Lisez ce document et les documents listés dans la section Ressources complémentaires relatifs à l’installation, la configuration et le fonctionnement de cet équipement avant d’installer, configurer,
utiliser ou entretenir ce produit. Les utilisateurs doivent se familiariser avec les instructions d’installation et de câblage en plus des exigences relatives aux codes, lois et normes en vigueur.
Les activités relatives à l’installation, le réglage, la mise en service, l’utilisation, l’assemblage, le démontage et l’entretien doivent être réalisées par des personnes formées selon le code de pratique en vigueur.
Si cet équipement est utilisé d’une façon qui n’a pas été définie par le fabricant, la protection fournie par l’équipement peut être compromise.
:
,
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ATTENZIONE Prima di installare, configurare ed utilizzare il prodotto, o effettuare interventi di manutenzione su di esso, leggere il presente documento ed i documenti elencati nella sezione “Altre risorse”,
riguardanti l’installazione, la configurazione ed il funzionamento dell’apparecchiatura. Gli utenti devono leggere e comprendere le istruzioni di installazione e cablaggio, oltre ai requisiti previsti dalle leggi, codici e
standard applicabili.
Le attività come installazione, regolazioni, utilizzo, assemblaggio, disassemblaggio e manutenzione devono essere svolte da personale adeguatamente addestrato, nel rispetto delle procedure previste.
Qualora l’apparecchio venga utilizzato con modalità diverse da quanto previsto dal produttore, la sua funzione di protezione potrebbe venire compromessa.
DİKKAT: Bu ürünün kurulumu, yapılandırılması, işletilmesi veya bakımı öncesinde bu dokümanı ve bu ekipmanın kurulumu, yapılandırılması ve işletimi ile ilgili İlave Kaynaklar bölümünde yer listelenmiş
dokümanları okuyun. Kullanıcılar yürürlükteki tüm yönetmelikler, yasalar ve standartların gereksinimlerine ek olarak kurulum ve kablolama talimatlarını da öğrenmek zorundadır.
Kurulum, ayarlama, hizmete alma, kullanma, parçaları birleştirme, parçaları sökme ve bakım gibi aktiviteler sadece uygun eğitimleri almış kişiler tarafından yürürlükteki uygulama yönetmeliklerine uygun şekilde
yapılabilir.
Bu ekipman üretici tarafından belirlenmiş amacın dışında kullanılırsa, ekipman tarafından sağlanan koruma bozulabilir.
岤䠑✲갪㖈㸞酤鏤㹁乽⡲䧴笞隌劥欴ㅷ⵹锞⯓ꠗ隡姽俒⟝⟃⿻⴪倴 չⰦ➮须彂պ畎眏⚥剤ꡠ㸞酤鏤㹁莅乽⡲姽鏤⪔涸俒⟝⢪欽罏䗳갭擿䜫㸞酤ㄤꂂ箁䭸
爚⚛痘ざ䨾剤岁鋊岁䖒ㄤ垦彋銴宠
⺫䭍㸞酤锅侮❜➰⢪欽⢪欽穉酤䬓⽹ㄤ笞隌瘞⹛⡲鿪䗳갭❜歋䊺竤麕黠殹鎯箻涸➃㆞鹎遤⟃痘ざ黠欽涸㻜⡲岁鋊
㥶卓㼟鏤⪔欽倴ꬌ醢鸤㉂䭸㹁涸欽鸁儘〳腋剚鸤䧭鏤⪔䨾䲿⣘涸⥃隌⸆腋「䴦
POZOR: Než začnete instalovat, konfigurovat či provozovat tento výrobek nebo provádět jeho údržbu, přečtěte si tento dokument a dokumenty uvedené v části Dodatečné zdroje ohledně instalace, konfigurace
a provozu tohoto zařízení. Uživatelé se musejí vedle požadavků všech relevantních vyhlášek, zákonů a norem nutně seznámit také s pokyny pro instalaci a elektrické zapojení.
Činnosti zahrnující instalaci, nastavení, uvedení do provozu, užívání, montáž, demontáž a údržbu musí vykonávat vhodně proškolený personál v souladu s příslušnými prováděcími předpisy.
Pokud se toto zařízení používá způsobem neodpovídajícím specifikaci výrobce, může být narušena ochrana, kterou toto zařízení poskytuje.
UWAGA: Przed instalacją, konfiguracją, użytkowaniem lub konserwacją tego produktu należy przeczytać niniejszy dokument oraz wszystkie dokumenty wymienione w sekcji Dodatkowe źródła omawiające
instalację, konfigurację i procedury użytkowania tego urządzenia. Użytkownicy mają obowiązek zapoznać się z instrukcjami dotyczącymi instalacji oraz oprzewodowania, jak również z obowiązującymi
kodeksami, prawem i normami.
Działania obejmujące instalację, regulację, przekazanie do użytkowania, użytkowanie, montaż, demontaż oraz konserwację muszą być wykonywane przez odpowiednio przeszkolony personel zgodnie z
obowiązującym kodeksem postępowania.
Jeśli urządzenie jest użytkowane w sposób inny niż określony przez producenta, zabezpieczenie zapewniane przez urządzenie może zostać ograniczone.
OBS! Läs detta dokument samt dokumentet, som står listat i avsnittet Övriga resurser, om installation, konfigurering och drift av denna utrustning innan du installerar, konfigurerar eller börjar använda eller utföra
underhållsarbete på produkten. Användare måste bekanta sig med instruktioner för installation och kabeldragning, förutom krav enligt gällande koder, lagar och standarder.
Åtgärder som installation, justering, service, användning, montering, demontering och underhållsarbete måste utföras av personal med lämplig utbildning enligt lämpligt bruk.
Om denna utrustning används på ett sätt som inte anges av tillverkaren kan det hända att utrustningens skyddsanordningar försätts ur funktion.
LET OP: Lees dit document en de documenten die genoemd worden in de paragraaf Aanvullende informatie over de installatie, configuratie en bediening van deze apparatuur voordat u dit product installeert,
configureert, bediend of onderhoudt. Gebruikers moeten zich vertrouwd maken met de installatie en de bedradingsinstructies, naast de vereisten van alle toepasselijke regels, wetten en normen.
Activiteiten zoals het installeren, afstellen, in gebruik stellen, gebruiken, monteren, demonteren en het uitvoeren van onderhoud mogen uitsluitend worden uitgevoerd door hiervoor opgeleid personeel en in
overeenstemming met de geldende praktijkregels.
Indien de apparatuur wordt gebruikt op een wijze die niet is gespecificeerd door de fabrikant, dan bestaat het gevaar dat de beveiliging van de apparatuur niet goed werkt.
2
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
FLEX I/O 2-input Frequency Modules Installation Instructions
Environment and Enclosure
ATTENTION:
This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in EN/IEC 60664-1), at
altitudes up to 2000 m (6562 ft) without derating.
This equipment is not intended for use in residential environments and may not provide adequate protection to radio communication services in such
environments.
This equipment is supplied as open-type equipment for indoor use. 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
enclosure must have suitable flame-retardant properties to prevent or minimize the spread of flame, complying with a flame spread rating of 5VA or be
approved for the application if nonmetallic. The interior of the enclosure must be accessible only by the use of a tool. Subsequent sections of this
publication may contain more information regarding specific enclosure type ratings that are required to comply with certain product safety certifications.
In addition to this publication, see the following:
• Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1, for additional installation requirements.
• NEMA Standard 250 and IEC 60529, as applicable, for explanations of the degrees of protection provided by enclosures.
WARNING: If you insert or remove the module 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.
WARNING: 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
ATTENTION: Personnel responsible for the application of safety-related Programmable Electronic Systems (PES) shall be aware of the safety
requirements in the application of the system and shall be trained in using the system
ATTENTION: Do not remove or replace a Terminal Base unit while power is applied. Interruption of the backplane can result in unintentional operation or
machine motion.
ATTENTION: This product is grounded through the DIN rail to chassis ground. Use zinc-plated chromate-passivated steel DIN rail to assure proper
grounding. The use of other DIN rail materials (for example, aluminum or plastic) that can corrode, oxidize, or are poor conductors, can result in improper
or intermittent grounding. Secure DIN rail to mounting surface approximately every 200 mm (7.8 in.) and use end-anchors appropriately. Be sure to
ground the DIN rail properly. See the Industrial Automation Wiring and Grounding Guidelines, Rockwell Automation publication 1770-4.1, for more
information.
Prevent Electrostatic Discharge
ATTENTION: This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these
guidelines when you handle this equipment:
• Touch a grounded object to discharge potential static.
• Wear an approved grounding wriststrap.
• Do not touch connectors or pins on component boards.
• Do not touch circuit components inside the equipment.
• Use a static-safe workstation, if available.
• Store the equipment in appropriate static-safe packaging when not in use.
ATTENTION: To reduce susceptibility to noise, power analog modules and digital modules from separate power supplies. Do not exceed a total length of
9.8 ft (3 m) for DC power cabling.
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
3
FLEX I/O 2-input Frequency Modules Installation Instructions
European Hazardous Location Approval
The following applies to products marked
II 3 G:
• Are intended for use in potentially explosive atmospheres as defined by European Union Directive 2014/34/EU and has been found to comply with the Essential Health and
Safety Requirements relating to the design and construction of Category 3 equipment intended for use in Zone 2 potentially explosive atmospheres, given in Annex II to this
Directive.
• Compliance with the Essential Health and Safety Requirements has been assured by compliance with EN 60079-15 and EN 60079-0.
• Are Equipment Group II, Equipment Category 3, and comply with the Essential Health and Safety Requirements relating to the design and construction of such equipment
given in Annex II to EU Directive 2014/34/EU. See the EU Declaration of Conformity at rok.auto/certifications for details.
• The type of protection is Ex nA IIC T4 Gc according to EN 60079-15.
• Comply to Standards EN 60079-0:2012, EN 60079-15:2010, reference certificate number DEMKO 14 ATEX 1342501X.
• Are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists, or air are unlikely to occur, or are likely to occur only infrequently and for short
periods. Such locations correspond to Zone 2 classification according to ATEX directive 2014/34/EU.
IEC Hazardous Location Approval
The following applies to products with IECEx certification:
• Are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists, or air are unlikely to occur, or are likely to occur only infrequently and for
short periods. Such locations correspond to Zone 2 classification to IEC 60079-0.
• The type of protection is Ex nA IIC T4 Gc according to IEC 60079-15.
• Comply to Standards IEC 60079-0: 2011, IEC 60079-15: 2010 reference IECEx certificate number IECEx UL 14.0066X.
WARNING: Special Conditions for Safe Use:
• This equipment is not resistant to sunlight or other sources of UV radiation.
• This equipment shall be mounted in an ATEX/IECEx Zone 2 certified enclosure with a minimum ingress protection rating of at least IP54 (in accordance with
EN/IEC 60079-0) and used in an environment of not more than Pollution Degree 2 (as defined in EN/IEC 60664-1) when applied in Zone 2 environments. The
enclosure must be accessible only by the use of a tool.
• This equipment shall be used within its specified ratings defined by Rockwell Automation.
• Provision shall be made to prevent the rated voltage from being exceeded by transient disturbances of more than 140% of the peak rated voltage when
applied in Zone 2 environments.
• This equipment must be used only with ATEX/IECEx certified Rockwell Automation backplanes.
• Secure any external connections that mate to this equipment by using screws, sliding latches, threaded connectors, or other means provided with this
product.
• Do not disconnect equipment unless power has been removed or the area is known to be nonhazardous.
• Earthing is accomplished through mounting of modules on rail.
• Devices shall be used in an environment of not more than Pollution Degree 2.
North American Hazardous Location Approval
The Following Information Applies When Operating This Equipment In
Hazardous Locations.
Informations sur l’utilisation de cet équipement en environnements dangereux.
Products marked "CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2
Groups A, B, C, D, Hazardous Locations and nonhazardous locations only. Each
product is supplied with markings on the rating nameplate indicating the
hazardous location temperature code. When combining products within a system,
the most adverse temperature code (lowest "T" number) may be used to help
determine the overall temperature code of the system. Combinations of equipment
in your system are subject to investigation by the local Authority Having
Jurisdiction at the time of installation.
Les produits marqués "CL I, DIV 2, GP A, B, C, D" ne conviennent qu'à une utilisation en
environnements de Classe I Division 2 Groupes A, B, C, D dangereux et non dangereux.
Chaque produit est livré avec des marquages sur sa plaque d'identification qui indiquent le
code de température pour les environnements dangereux. Lorsque plusieurs produits sont
combinés dans un système, le code de température le plus défavorable (code de
température le plus faible) peut être utilisé pour déterminer le code de température global
du système. Les combinaisons d'équipements dans le système sont sujettes à inspection
par les autorités locales qualifiées au moment de l'installation.
WARNING:
Explosion Hazard –
• Do not disconnect equipment unless power has been
removed or the area is known to be nonhazardous.
• Do not disconnect connections to this equipment unless
power has been removed or the area is known to be
nonhazardous. Secure any external connections that
mate to this equipment by using screws, sliding latches,
threaded connectors, or other means provided with this
product.
• Substitution of components may impair suitability for
Class I, Division 2.
AVERTISSEMENT:
Risque d’Explosion –
• Couper le courant ou s'assurer que l'environnement est classé non
dangereux avant de débrancher l'équipement.
• Couper le courant ou s'assurer que l'environnement est classé non
dangereux avant de débrancher les connecteurs. Fixer tous les
connecteurs externes reliés à cet équipement à l'aide de vis,
loquets coulissants, connecteurs filetés ou autres moyens fournis
avec ce produit.
• La substitution de composants peut rendre cet équipement
inadapté à une utilisation en environnement de Classe I, Division 2.
4
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
FLEX I/O 2-input Frequency Modules Installation Instructions
Install Your Frequency Input Module
7
1
3
2
6
4
5
ATTENTION: During mounting of all devices, be sure that all debris (metal chips, wire strands, and so on) is kept from falling into the module. Debris
that falls into the module could cause damage on power-up.
The FLEX™ I/O 2-input frequency modules mounts on a 1794-TB3G or 1794-TB3G-TB3GS terminal base.
1.
2.
3.
Rotate the keyswitch (1) on the terminal base (2) clockwise to position 1 as required for this type of module.
Make sure that 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.
Make sure that the pins on the bottom of the module are straight so that they align properly with the connector in the terminal base.
WARNING: If you remove or insert the module while the 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.
4.
5.
Position the module (4) with its alignment bar (5) aligned with the groove (6) on the terminal base.
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.
Connecting Wiring for the 1794-TB3G and 1794-TB3GS Terminal Base Unit
Connect wiring as shown in Figure 1 on page 6.
ATTENTION: To reduce susceptibility to noise, power analog modules and digital modules from separate power supplies. Do not exceed a length of 3
m (9.8 ft) for DC power cabling.
ATTENTION: Do not daisy chain power or ground from this terminal base unit to any AC or DC digital module terminal base units.
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
5
FLEX I/O 2-input Frequency Modules Installation Instructions
Figure 1 - Wiring Connections using 1794-TB3G or 1794-TB3GS Terminalg Base Unit
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A
3V
16
6V
17
24V RET
PWR
50 500/50 F
mV mV
SEL SEL
Channel 0 Frequency Input
18
19
20
21
RET 24V
F 500/50 50
mV
PWR
mV
SEL
SEL
Channel 1 Frequency Input
24V 24V
PWR PWR
22
23
24
25
26
27
28
29
6V
30
3V
31
32
33
B
Chassis OUT 0 OUT 0
Ground
RET
34
35
+V
COM
RET
50 500/50 G
mV mV
SEL SEL
Channel 0 Gate Input
NC
36
37
38
39
40
24V 24V
PWR PWR
41
42
RET NC
G 500/50 50
mV
mV
SEL
SEL
Channel 1 Gate Input
43
44
45
46
47
OUT 1 OUT 1 Chassis
RET Ground
48
49
50
51
NC
+V
COM
C
24V DC
Supply In
NC
Sply0 Chassis Sply0
Ground RET
Sply1 Chassis Sply1
Ground RET
Chassis Grounds for Shields
Channel 0 Output Supply
+24V DC = Terminals C-34 and C-50
COM = C-35 and C-51
Chassis Ground = Terminals B-16, B-33, C-38, C-40...45, and C-47
NC = No connection
For daisy chaining: Supply in - C-34 (+) and C-35 (-)
Supply out - C-50 (+) and C-51 (-)
Output Alarm Connections
Supply
Output
Channel 0 Terminals(1)
Sply +
Sply RET
C-37
C-39
24V DC
Supply Out
Channel 1 Output Supply
Out +
Out RET
B-17
B-18
(1794-TB3G shown)
Channel 1 Terminals(1)
Sply +
Sply RET
C-46
C-48
Out +
Out RET
B-31
B-32
(1) Connect cable shields to GND connections.
Channel 0 Terminals(1)
Types of Inputs
Channel 1 Terminals(1)
Power
Input
RET(2)
Power
Input
RET(2)
A-7
A-6
A-3
A-8
A-9
A-12
24V DC Contact Switch
500 mV AC Magnetic Pickup
A-7
A-6
A-3
A-8
A-9
A-12
A-7
A-5
A-3
A-8
A-10
A-12
(6)
A-7
A-5
A-3
A-8
A-10
A-12
A-2
A-2
A-1
A-0
A-3
A-3
A-13
A-13
A-14
A-15
A-12
A-12
B-24
B-23
B-20
B-25
B-26
B-29
Frequency
24V DC IEC 1+ Proximity(3), (4)
(5)
50 mV AC Magnetic Pickup
6V AC Vortex
3V AC Vortex
Gate
24V DC IEC 1+ Proximity(3), (4)
(5)
24V DC Contact Switch
500 mV DC Magnetic Pickup
B-24
B-23
B-20
B-25
B-26
B-29
B-24
B-22
B-20
B-25
B-27
B-29
50 mV DC Magnetic Pickup(6)
B-24
B-22
B-20
B-25
B-27
B-29
(1)
(2)
(3)
(4)
(5)
(6)
6
Connect cable shields to GND terminals
All four RET terminals (ch0 and 1, Freq. and Gate) are internally connected together.
As defined by standard IEC 1131-2.
RET not used on 2-wire devices.
Add external resistor from 24V to F (A-6) or G (A-9) for wire-off detection (0.4 mA).
Add jumper between 50 mV and RET (frequency - channel 0 = A-4…A-3; channel 1 = A-11…A-12)
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
GND(1)
FLEX I/O 2-input Frequency Modules Installation Instructions
Resolution and Accuracy
+1 Hz or +0.1 Hz (depending on frequency range bit setting), or + accuracy specification listed in Table 1, whichever is greater.
Resolution % is defined as:
% Resolution =
100
count frequency x minimum frequency sample time
Accuracy % is defined as:
% Accuracy = 100
1-
Minimum frequency sample time
2
Minimum frequency
1
+
sample time
count
frequency
2
Table 1 - Accuracy Specifications
Accuracy
Min. Freq. Sample
Time (ms)
Sampling Accuracy
Case Total
Time Base Accuracy Worst
Accuracy
2
4
5
10
20
50
100
200
500
1000
+0.02%
+0.01%
+0.008%
+0.004%
+0.002%
+0.0008%
+0.0004%
+0.0002%
+0.00008%
+0.00004%
+0.0225%
+0.0225%
+0.0225%
+0.0225%
+0.0225%
+0.0225%
+0.0225%
+0.0225%
+0.0225%
+0.0225%
+0.0425
+0.0325
+0.0305
+0.0265
+0.0245
+0.0233
+0.0229
+0.0227
+0.02258
+0.02254
Deviation in Hz Due to Total Accuracy
1.0…3276.7 Freq. Range 1…32767 Freq. Range
(in Hz)
(in Hz)
+0.1…1.4
+1…14
+0.1…1.1
+1…11
+0.1…1.0
+1…10
+0.1…0.9
+1…9
+0.1…0.8
+1…8
+0.1…0.8
+1…8
+0.1…0.8
+1…8
+0.1…0.7
+1…7
+0.1…0.7
+1…7
+0.1…0.7
+1…7
Resolution
0.01%
0.005%
0.004%
0.002%
0.001%
0.0004%
0.0002%
0.0001%
0.00004%
0.00002%
Table 2 - Input Map
Bit 
Word 
0
1
2
3
4
5
15
14
13
12
11
10
09
08
07
06
Read
Frequency 0…32,767 or 0.0…3,276.7 Channel 0
% Full Scale 0.0…3,276.7% Channel 0 or Acceleration -32,768…32,767 Channel 0
Frequency 0…32,767 or 0.0…3,276.7 Channel 1
% Full Scale 0.0…3,276.7% Channel 1 or Acceleration -32,768…32,767 Channel 1
GS
R
R
Direction CH 0
F/A CH 0 WO CH 0 MPA CH 0 R
R
CH 0
Diagnostic Status
Reserved
Reserved
Channel 0
Reserved
05
04
Direction CH 1
03
02
01
00
GS
F/A CH 1 WO CH 1 MPA CH 1
CH 1
Diagnostic Status
Channel 1
6
Where:
GS = Gate state
F/A = Frequency/Accel alarm
WO = Wire-off alarm
MPA = Missing pulse alarm
R = Reserved
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
7
FLEX I/O 2-input Frequency Modules Installation Instructions
Table 3 - Output Map
Dec.
Oct.
15
17
14
16
13
15
12
14
11
13
10
12
9
11
8
10
0
CF
SSM
FR CH 0
Number of pulses to
terminate sampling 0…7 CH 0 MPM 0…3 CH 0
7
7
6
6
R
LF
5
5
4
4
3
3
2
2
1
0
1
0
0…3
of pulses to terminate MPM
FR CH 1 Number
CH 1
sampling 0…7 CH 1
1
2
Maximum Frequency 0…32.767 or 0.0…3,276.7 or Absolute Value of Acceleration - 0…32767 Channel 0
Frequency Scaling Divisor 0…255 Channel 0
Frequency Scaling Multiplier 0…255 Channel 0
Minimum
Frequency
Sample
Time
0…15
Init
St Up ACT 0…3
3
WOFG CH 0 WOFF CH 0 IGI CH 0 IFI CH 0 CH 0
F/AAS CH 0 MPDM 0…3 CH 0
CH 0
CH 0
4
Maximum Frequency 0…32,767 or 0.0…3,276.7 or Absolute Value of Acceleration - 0…32,767 Channel 1
5
Frequency Scaling Divisor 0…255 Channel 1
Frequency Scaling Multiplier 0…255 Channel 1
Minimum
Frequency
Sample
Time
0…15
Init
St Up ACT 0…3
6
WOFG CH 1 WOFF CH 1 IGI CH 1 IFI CH 1 CH 1
F/AAS CH 1 MPDM 0…3 CH 1
CH 1
CH 1
7
Reserved
Where: CF = Communication Fault
SSM = Safe state mode
FR = Frequency range
MPM = Missing pulse multiplier
LF = Local Fault mode
F/AAS = Frequency/Accel alarm select
WOFF = Wire-off fault frequency
WOFG = Wire-off fault gate
WOFM = Wire-off fault mode
IGI = Invert gate input
IFI = Invert frequency input
ACT = Acceleration calculation time
MPDM = Missing pulse delay multiplier
R = Reserved
WOFM 0…3 CH 0
WOFM 0…3 CH 1
Interpret Status Indicators
Allen-Bradley
1794-IJ2
1794-IJ2 shown
FREQUENCY INPUT 2 CHANNEL
1
FREQ
F
0
A
GATE
0
F
FREQ
1
F
B
GATE
1
F
C
OUT
0
D
OUT
1
OK
E
A = Input indicator
B = Insertable label for writing individual I/O assignments
C = Wire-off Fault indicator
D = Output indicator
E = Power/status indicator – indicates power applied to module and status of module
When an input indicator (yellow) is lighted, it indicates that a valid signal (active high or active low) is present at one of the Input terminals.
When wire-off detection is enabled, and a wire-off fault is detected (24V DC IEC 1+ input terminal only), a fault indicator (red) is blinked/flashed at a rate of 1 Hz to signal a fault
condition. A wire-off fault signal is sent to the backplane. A flashing red fault indication means a valid wire-off condition for a 24V DC IEC 1+ Input or a 24V DC contact switch input
with a shunt resistor.
When an output indicator is yellow, the logic is driving an output alarm On. After detecting a fault, the internal circuitry will set the output data to the appropriate safe state, as
defined by the module data table. Safe state control may be adapter-dependent. The input and output indicators are on the field side of the isolation path, and display the logic state
of the actual micro controller input and output.
The status indicator initially powers up as solid green, indicating the power supply is operating and internal diagnostic tests are being performed. After a successful power-up test,
the indicator remains green. The indicator turns red in about 1.5 s if there is an internal diagnostics error. The module is operating correctly when the green OK indicator is on.
A red OK indicator shows that the module is in a Faulted condition (internal error).
8
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
FLEX I/O 2-input Frequency Modules Installation Instructions
Table 4 - Status Indicators Description
Indicator
Condition
Off (Dark)
On (Yellow)
Off (Dark)
On (Red Flashing)
Off (Dark)
On (Yellow)
Off (Dark)
Solid Green
Solid Red
Input (0, 1)
(Freq, or Gate)
Fault (F)
(Freq, or Gate)
Output Alarm
(0, 1)
Status (OK)
Operating Description
Input Turned Off, Input Not Used, or Wire Disconnected
Input Turned On (Active High or Active Low if Inverted)
Wire Connected, Normal Operation or Detection Disabled
Wire Disconnected, Fault Condition (for IEC 1+ Proximity switch or switch contacts with shunt resistor)
Output Alarm Turned Off
Output Alarm Turned On (Logic Drive On)
24V Power Turned Off, or 5V Logic Power Problem
Module OK, Normal Operating Mode
Module Fault, Outputs Disabled
Diagnostics
The frequency input module returns diagnostics to the controller processor in word 5 of the BTR file. These diagnostics give you information on the status or condition of the module.
BTR Word 5
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
00
word 5
See Table 5 for diagnostics
Table 5 - Diagnostic Bit Definition
Input Word
Bit
Word 5
Bits
00...03
03
0
0
02
0
0
01
0
0
00
0
1
Definition
0 = Normal Operation (No Failure)
1 = Calibration Failure
2 = Configuration Failure
0
0
1
0
A Minimum Frequency Sample Time value other than 0…9 was selected.
0
0
1
1
3 = Message Failure
0
1
0
0
4 = Lead Break Detection Hardware Failure
0
1
0
1
5 = Major Hardware Failure
0
1
1
0
6 = EEPROM Failure
0
1
1
1
7 = RAM Failure
1
0
0
0
8 = ROM Failure
9 = Calculation Failure
The actual Frequency is greater than 32,767 Hz or 3,276.7 Hz (overange). The scaled Frequency
1
0
0
1
is greater than 32,767 Hz or 3,276.7 Hz (overange). The % Full Scale calculation (based on Max
Frequency) is > 3,276.7%.
1010...1111
10...15 = Not used
Diagnostic Status - indicates the response from the module; a normal or non-normal operating condition.
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
9
FLEX I/O 2-input Frequency Modules Installation Instructions
Specifications
Input Specifications
Attribute
Value
Number of input channels
Number of inputs per channel
Input frequency, max
Frequency value, max
Input pulse width
Resolution/Accuracy
On-stage voltage, min
2
2 - Frequency and Gate (gate used to establish direction)
1…32 kHz w/sine wave; 1…32 kHz w/square wave input
32,767 or 3,276.7 (dependent on range)
20 µs
See Resolution and Accuracy on page 7
10V (24V IEC+1 proximity, encoder input or switch inputs)
50 mV AC, 28V AC peak - Extended Magnetic Pickup
500 mV AC, 28V AC peak - Magnetic Pickup
< 3V - Vortex Flowmeter low range
> 6V - Vortex Flowmeter high range
24V DC IEC+1 proximity or encoder input
24V DC Contact Switch input
Limited to isolated 24V DC power supply
On-state voltage, nom
(selected by terminal base connections)
On-state voltage, max
On-state current
min
nom
max
Off-state current, min
Off-state voltage, max
Wire-off detection
Frequency input impedance
Gate input impedance
2.0 mA
9.0 mA
10.0 mA
1.5 mA into 24V DC IEC+ terminal
5.0V DC on 24V DC IEC+1 terminal
0.4 mA for proximity, encoder, or contact switch with 50 kΩ shunt resistor
> 5 kΩ for 50 mV Extended Magnetic Pickup
> 5 kΩfor 500 mV Magnetic Pickup
> 10 kΩ for 3V Vortex Flowmeter low range
> 10 kΩ for 6V Vortex Flowmeter high range
> 2.5 kΩ for 24V DC IEC+1 proximity or encoder input
> 2.5 kΩ for 24V DC Contact Switch input
> 5 KΩ for 50 mV Extended Magnetic Pickup
> 5 KΩ for 500 mV Magnetic Pickup
> 2.5 KΩ for 24V DC IEC+1 proximity or encoder input
> 2.5 KΩ for 24V DC Contact Switch input
Output Specifications
(meets IEC 1A 24V DC output specifications)
Attribute
Value
Number of outputs
Output voltage source
Output voltage
min
nom
max
Off-state voltage, max
2 isolated
Customer supplied
On-state current
Surge current
Off-state leakage, max
On-state voltage drop
Output control
Output switching time
10
10V DC
24V DC
31.2V DC
31.2V DC
1 mA per output min
1.0 A per channel sourced out of module max
Current Limited - All outputs can be on simultaneously without derating
2 A for 50 ms, repeatable every 2 s
Less than 300 µA at 31.2V DC
0.9V DC at 1 A
Outputs individually assignable to: Frequency, % Full Scale, or Acceleration Alarm
Triggered by frequency alarm or acceleration alarm
Turn on: Less than 0.5 ms
Turn off: Less than 1 ms
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
FLEX I/O 2-input Frequency Modules Installation Instructions
General Specifications
Attribute
Value
Module location
External DC power
Voltage range
Supply voltage, nom
Supply current
Isolated DC power
Voltage range
Supply voltage, nom
Supply current, max
Peak AC ripple, max
Dimensions (with module installed in base),
(H x W x D)
1794-TB3G and 1794-TB3GS Terminal Base Units
(Input for +5V logic and 24V DC/DC converters)
19.2…31.2V DC (includes 5% AC ripple)
24V DC
220 mA @ 19.2V DC; 180 mA @ 24V DC; 140 mA @ 31.2V DC
(Output to sensors and encoders)
21.6…26.4V DC
24V DC
0…60 mA @ 24V DC (4 devices @ 15 mA = 60 mA)
100 mV
Isolation voltage
50V (continuous), Basic Insulation Type
Type tested at 1365V AC for 60 s, between field side and system and individual channels
< 4 ms
30 mA at 5V DC
4.6 W at 31.2V DC
15.6 BTU/hr at 31.2V DC
1 green/red power/status indicator
4 yellow status indicators (Freq 0, 1, Gate 0, 1)
4 red wire-off indicators (Freq 0, 1, Gate 0, 1)
2 yellow status indicators (Out 0, Out 1) - logic side
1
Determined by installed terminal base
2 - on signal ports
3 - on power ports
Shielded on signal ports
Determined by installed terminal base
None (open-style)
T4A
T4
T4
Processing time
Flexbus current
Power dissipation, max
Thermal dissipation, max
Indicators (field side driven, logic side indication)
Keyswitch Position
Wire size
Wiring category(1)
Wire type
Terminal screw torque
Enclosure type rating
North American temp code
IECEx temp code
ATEX temp code
94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.)
(1) Use this conductor category information for planning conductor routing. See the Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1.
Environmental Specifications
Attribute
Temperature, operating
Temperature, surrounding air, max
Temperature, nonoperating
Relative humidity
Vibration
Shock, operating
Shock, nonoperating
Emissions
Value
IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
0…55 °C (32…131 °F) (1794-IJ2)
-20…+70 °C (-4…+158 °F) (1794-IJ2XT)
55 °C (131 °F) (1794-IJ2)
70 °C (158 °F) (1794-IJXT)
IEC 60068-2-1 (Test Ab, Unpackaged nonoperating Cold),
IEC 60068-2-2 (Test Bb, Unpackaged nonoperating Dry Heat),
IEC 60068-2-14 (Test Na, Unpackaged nonoperating Thermal Shock):
-40…+85 °C (-40…+185 °F)
IEC 60068-2-30 (Test Db, Unpackaged Damp Heat):
5…95% noncondensing
IEC 60068-2-6 (Test Fc, Operating):
5 g @ 10…500 Hz
IEC 60068-2-27 (Test Ea, Unpackaged Shock):
30 g
IEC 60068-2-27 (Test Ea, Unpackaged Shock):
50 g
IEC 61000-6-4
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
11
FLEX I/O 2-input Frequency Modules Installation Instructions
Environmental Specifications (Continued)
Attribute
ESD immunity
Radiated RF immunity
EFT/B immunity
Surge transient immunity
Conducted RF immunity
Value
IEC 61000-4-2:
4 kV contact discharges (1794-IJ2)
6 kV contact discharges (1794-IJ2XT)
8 kV air discharges
IEC 61000-4-3:
10V/m with 1 kHz sine-wave 80% AM from 80…6000 MHz
IEC 61000-4-4:
±2 kV at 5 kHz on power ports
±2 kV at 5 kHz on signal ports
IEC 61000-4-5:
±2 kV line-earth(CM) on shielded signal ports
IEC 61000-4-6:
10V rms with 1 kHz sine-wave 80% AM from 150 kHz…80 MHz on shielded signal ports
Certifications
Attribute (when product is marked)(1)
c-UL-us
Ex
IECEx
CE
RCM
TÜV
KC
EAC
Morocco
CCC
Value
UL Listed Industrial Control Equipment, certified for US and Canada. See UL File E65584.
UL Listed for Class I, Division 2 Group A,B,C,D Hazardous Locations, certified for U.S. and Canada. See UL File E194810.
European Union 2014/34/EU ATEX Directive, compliant with:
EN 60079-0; General Requirements
EN 60079-15; Potentially Explosive Atmospheres, Protection "n"
II 3 G Ex nA IIC T4 Gc
DEMKO 14 ATEX 1342501X
IECEx System, compliant with:
IEC 60079-0; General Requirements
IEC 60079-15; Potentially Explosive Atmospheres, Protection "n"
II 3 G Ex nA IIC T4 Gc
IECEx UL 14.0066X
European Union 2014/30/EU EMC Directive, compliant with:
EN 61326-1; Meas./Control/Lab., Industrial Requirements
EN 61000-6-2; Industrial Immunity
EN 61000-6-4; Industrial Emissions
EN 61131-2; Programmable Controllers (Clause 8, Zone A & B)
European Union 2011/65/EU RoHS, compliant with:
EN 50581; Technical documentation
Australian Radiocommunications Act, compliant with:
EN 61000-6-4; Industrial Emissions
TÜV Certified for Functional Safety:
up to and including SIL 2
Korean Registration of Broadcasting and Communications Equipment, compliant with:
Article 58-2 of Radio Waves Act, Clause 3
Russian Customs Union TR CU 020/2011 EMC Technical Regulation
Arrêté ministériel n° 6404-15 du 29 ramadan 1436
CNCA-C23-01:2019 CCC Implementation Rule Explosion-Proof Electrical Products, compliant with:
GB 3836.1-2010 Explosive atmospheres — Part 1: Equipment — General requirements
GB 3836.8-2014 Explosive atmospheres - Part 8: Equipment protection by type of protection “n”
(1) See the Product Certification link at rok.auto/certifications for Declarations of Conformity, Certificates, and other certification details.
12
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
FLEX I/O 2-input Frequency Modules Installation Instructions
Notes:
Rockwell Automation Publication 1794-IN049E-EN-P - May 2022
13
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