Allen-Bradley ControlLogix 1756-OF6CI User manual

Publication 1756-5.36 - September 1999
Installation Instructions
ControlLogix
Current Loop Output Module
(Catalog Number 1756-OF6CI)
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To: See page:
Prevent Electrostatic Discharge 2
See Removal and Insertion Under Power (RIUP) 2
Understand Compliance to European Union Directive 3
Note the Power Requirements 4
Identify the Module Components 4
Install the Module 5
Key the Removable Terminal Block/Interface Module 6
Wire the Removable Terminal Block 7
Assemble the Removable Terminal Block and the Housing 11
Install the Removable Terminal Block onto the Module 12
Check the Indicators 13
Remove the Removable Terminal Block from the Module 14
Remove the Module 14
See Specifications 15
Understand CSA Hazardous Location Approval 16
Allen-Bradley Drives

2ControlLogix Current Loop Output Module
Publication 1756-5.36 - September 1999
Prevent Electrostatic Discharge
Removal and Insertion Under Power (RIUP)
ATTENTION
!
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ATTENTION
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ControlLogix Current Loop Output Module 3
Publication 1756-5.36 - September 1999
Understand Compliance to European Union Directive
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Allen-Bradley Drives

4ControlLogix Current Loop Output Module
Publication 1756-5.36 - September 1999
Note the Power Requirements
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Identify the Module Components
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Removable Terminal Block and Housing
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20966-M
Side view Front view
1756-OF6CI module RTB door label

ControlLogix Current Loop Output Module 5
Publication 1756-5.36 - September 1999
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Install the Module
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20861–M 20862–M
21
Align circuit board with top and
bottom chassis guides.
Slide module into chassis
until module tabs ‘click’.
Printed
Circuit
Board
Locking tab
Allen-Bradley Drives

6ControlLogix Current Loop Output Module
Publication 1756-5.36 - September 1999
Key the Removable Terminal Block/Interface Module
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20850–M
U-shaped
Keying Band
20851–M
12
0
34567
Wedge-shaped
Keying Tab
Begin keying in
section #6 or #7.
Module side of RTB

ControlLogix Current Loop Output Module 7
Publication 1756-5.36 - September 1999
Wire the Removable Terminal Block
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Connect grounded end of the cable
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Connect ungrounded end of the cable
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20104-M
20918-M
a. Remove a length
of cable jacket
from the
connecting cable.
b. Pull the foil shield
and bare drain
wire from the
insulated wire.
c. Twist the foilshield
and drain wire
together to form a
single strand.
d. Attach a groundlug
and apply heat
shrink tubing to the
exit area.
e. Connect the drain wire to a
chassis mounting tab.
Use any chassis mounting
tab that is designated as a
functional signal ground.
Chassis mounting tab
Drain wire with ground lug
4M or 5M (#10 or #12)
phillips screw and star
washer (or SEM screw)
4M or 5M (#10 or #12)
star washer
Allen-Bradley Drives

8ControlLogix Current Loop Output Module
Publication 1756-5.36 - September 1999
For the Spring Clamp RTB
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For the NEMA Screw RTB
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:LUHWKHWHUPLQDOV
20863–M

ControlLogix Current Loop Output Module 9
Publication 1756-5.36 - September 1999
Wiring example
20967-M
12
34
56
78
910
1112
1314
1516
1718
1920
i
NOTE: Place additional devices anywhere in the loop.
OUT-1
ALT-1
RTN-1
OUT-3
RTN-3
Not used
OUT-5
ALT-5
ALT-3
RTN-5
OUT-0
ALT-0
RTN-0
OUT-2
RTN-2
Not used
OUT-4
ALT-4
ALT-2
RTN-4
User Analog
Output Device
Shield Ground
1756-OF6CI wiring example for loads of 0-550Ω
Allen-Bradley Drives

10 ControlLogix Current Loop Output Module
Publication 1756-5.36 - September 1999
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40854-M
12
34
56
78
910
1112
1314
1516
1718
1920
i
NOTE: Place additional devices anywhere in the loop.
OUT-1
ALT-1
RTN-1
OUT-3
RTN-3
Not used
OUT-5
ALT-5
ALT-3
RTN-5
OUT-0
ALT-0
RTN-0
OUT-2
RTN-2
Not used
OUT-4
ALT-4
ALT-2
RTN-4
User Analog
Output Device
Shield Ground
1756-OF6CI wiring example for loads of 551-1000Ω

ControlLogix Current Loop Output Module 11
Publication 1756-5.36 - September 1999
Assemble the Removable Terminal Block and the Housing
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20852-M
Groove
Groove
Side edge of the RTB
Side edge of the RTB
Strain relief area
1756-TBNH RTB shown for reference
Allen-Bradley Drives

12 ControlLogix Current Loop Output Module
Publication 1756-5.36 - September 1999
Install the Removable Terminal Block onto the Module
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ATTENTION
!
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20853–M 20854–M
Top
guide
Left-side guides
Bottom guide
Locking
tab
Align the top, bottom and left
side guides of the RTB with
the guides on the module.
Press quickly and evenly to seat
the RTB on the module until the
latches snap into place. Slide
the locking tab down to lock the
RTB onto the module.

ControlLogix Current Loop Output Module 13
Publication 1756-5.36 - September 1999
Check the Indicators
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LED
indicators:
This display: Means: Take this action:
OK Steady green light The outputs are in a normal
operating state. None
OK Flashing green light The module has passed
internal diagnostics but is not
actively controlled.
None
OK Flashing red light Previously established
communication has timed
out.
Check controller and chassis
communication
OK Steady red light The module must be
replaced. Replace the module.
CAL Flashing green light The module is in calibration
mode. None
20965-M
ANALOG OUTPUT
CAL
OK
Allen-Bradley Drives

14 ControlLogix Current Loop Output Module
Publication 1756-5.36 - September 1999
Remove the Removable Terminal Block from the Module
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Remove the Module
ATTENTION
!
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20855–M
20856–M 20857–M
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ControlLogix Current Loop Output Module 15
Publication 1756-5.36 - September 1999
1756-OF6CI Specifications
Number of Outputs 6 individually isolated channels
Module Location 1756 ControlLogix Chassis
Backplane Power Requirements
(No external power requirements) 250mA @ 5.1V dc & 225mA @ 24V dc (0-550Ωloads terminated on OUTs and RTNs) (6.7W)
250mA @ 5.1V dc & 300mA @ 24V dc (551-1000Ωloads
terminated on OUTs and ALTs) (8.5W)
Power Dissipation within Module
Thermal Dissipation
5.5W (0-550Ωloads)
6.1W (551-1000Ωloads)
18.76 BTU/hr (0-550Ωloads)
20.80 BTU/hr (551-1000Ωloads)
Output Current Range 0 to 21mA
Current Resolution 13 bits across 21mA (2.7µA)
Data Format Integer mode (Left justified, 2s complement)
Floating point IEEE 32 bit
Open Circuit Detection None
Output Overvoltage Protection 24V ac/dc maximum
Output Short Circuit Protection Electronically current limited to 21mA or less
Drive Capability 0-1000Ω
Separate field terminations for ranges 0-550Ωor 551-1000Ω
Output Settling Time <2ms to 95% of final value with resistive loads
Calibrated Accuracy at 25°C
Calibration Interval Better than 0.1% of range from 4mA to 21mA Six months typical
Output Offset Drift with Temperature 1 µA/degree C typical
Gain Drift with Temperature 60 ppm/degree C typical (100 ppm maximum)
Module Error over Full Temp. Range 0.6% of range
Module Scan Time for all Channels 25ms maximum floating point
10ms maximum integer
Isolation Voltage
Channel to channel
User to system
Optoisolated, tranformer isolated
100% tested at 1700V dc for 1s, based on 250V ac
100% tested at 1700V dc for 1s, based on 250V ac
Module Conversion Method R-Ladder DAC, monotonicity with no missing codes
Inductive Load <1 mH
RTB Screw Torque (NEMA) 7-9 inch-pounds (0.8-1Nm)
Module Keying (Backplane) Electronic
RTB Keying User defined
Field Wiring Arm and Housing 20 Position RTB (1756-TBNH or TBSH)1
Environmental Conditions
Operating Temperature
Storage Temperature
Relative Humidity
0 to 60°C (32 to 140°F)
-40 to 85°C (-40 to 185°F)
5 to 95% noncondensing
Conductors Wire Size
Category
22-14 gauge (2mm2) stranded maximum1
3/64 inch (1.2mm) insulation maximum
22, 3
Screwdriver Width for RTB 5/16 inch (8mm) maximum
Allen-Bradley Drives

16 ControlLogix Current Loop Output Module
Publication 1756-5.36 - September 1999
CSA Hazardous Location Approval
User Manual Publication 1756-6.5.9
Agency Certification
(when product or packaging is marked)
1Maximum wire size will require extended housing - 1756-TBE.
2Use this conductor category information for planning conductor routing as described in
the system level installation manual.
3Refer to publication 1770-4.1, "Programmable Controller Wiring and Grounding Guidelines”
4CSA certification–Class I, Division 2, Group A, B, C, D or nonhazardous locations.
FM approved–Class I, Division 2, Group A, B, C, D or nonhazardous locations.
5Shielded cable required.
CSA certifies products for general use as well as for use in hazardous locations. Actual CSA certification is
indicated by the product label as shown below, and not by statements in any user documentation.
Example of the CSA certification product label:
To comply with CSA certification for use in hazardous locations, the following information becomes a part of
the product literature for this CSA-certified industrial constrol product::
•This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D, or non-hazardous locations only.
•The products having the appropriate CSA markings (that is, Class I, Division 2, Groups A, B, C, D) are
certified for use in other equipment where the suitability of combination (that is, application or use) is
determined by the CSA or the local inspection office having jurisdiction.
IMPORTANT
Due to the modular nature of a programmable control system, the product with the
highest temperature rating determines the overall temperature code rating of a
programmable control system in a Class I, Division 2 location. The temperature code
rating is marked on the product label as shown.
marked for all applicable directives5
Class I Div 2 Hazardous4
Class I Div 2 Hazardous4
marked for all applicable acts
N223
CL I, DIV 2
GP A,B,C,D
TEMP

ControlLogix Current Loop Output Module 17
Publication 1756-5.36 - September 1999
Temperature code rating:
The following warnings apply to products having CSA certification for use in hazardous locations.
ATTENTION
!
Explosion hazard!
•Substitution of components may impair suitability for Class I, Division 2.
•Do not replace components unless power has been switched off or the area is
known to be non-hazardous.
•Do not disconnect equipment unless power has been switched off or the area
is known to be non-hazardous.
•Do not disconnect connectors unless power has been switched off or the area
is known tobe non-hazardous. Secure any user-supplied connectors that mate
to external circuits on this equipment by using screws, sliding latches,
threaded connectors, or other means such that any connection can withstand
a 15 Newton (3.4 lb) separating force applied for a minimum of one minute.
•If the Product contains batteries, they must only be changed in an area known
to be non-hazardous.
CSA logo is a registered trademark of the Canadian Standards Association.
CL I, DIV 2
GP A,B,C,D
TEMP
Look for temperature
code rating here.
Allen-Bradley Drives

18 ControlLogix Current Loop Output Module
Publication 1756-5.36 - September 1999
Approbation d’utilisation dans des environnements dangereux par la CSA
La CSA certifie des produits pour une utilisation générale aussi bien que pour une utilisation en
environnements dangereux. La certification CSA en vigueur est indiquée par l'étiquette produit et non par des
indications dans la documentation utilisateur.
Exemple d'étiquette de certification d'un produit par la CSA:
Pour satisfaire à la certification CSA en environnements dangereux, les informations suivantes font partie
intégrante de la documentation des produits de commande industrielle certifiés.
•Cet équipement ne convient qu’à une utilisation en environnements de Classe 1, Division 2,
Groupes A, B, C, D ou non dangereux.
•Les produits portant le marquage CSA approprié (c'est-à-dire Classe 1, Division 2, Groupes A, B, C, D) sont
certifiés pour une utilisation avec d'autres équipements, les combinaisons d’applications et d’utilisations
étant déterminées par la CSA ou le bureau local d'inspection qualifié.
IMPORTANT
De par la nature modulaire des systèmes de commande programmables, le produit ayant
le code de température le plus élevé détermine le code de température global du
système dans un environnement de Classe 1, Division 2. Le code de température est
indiqué sur l'étiquette produit.
&RGHGHWHPSpUDWXUH
CL I, DIV 2
GP A,B,C,D
TEMP
CL I, DIV 2
GP A,B,C,D
TEMP
Le code de température
est indiqué ici.

ControlLogix Current Loop Output Module 19
Publication 1756-5.36 - September 1999
Les avertissements suivants s’appliquent aux produits ayant la certification CSA pour une utilisation en
environnements dangereux.
ATTENTION
!
Risque d’explosion
•La substitution de composants peut rendre cet équipement inadapté à une
utilisation en environnements de Classe 1, Division 2.
•Couper le courant ou s'assurer que l’environnement est classé non dangereux
avant de remplacer des composants.
•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 fournis par
l'utilisateur pour se brancher aux circuits externes de cet équipement à l 'aide
de vis, loquets coulissants, connecteurs filetés ou autres, de sorte que les
connexions résistent à une force de séparation de 15 Newtons
(1,5 kg - 3,4 lb.) appliquée pendant au moins une minute.
•S'assurer que l'environnement est classé non dangereux avant de changer
les piles.
Le sigle CSA est une marque déposée de l’Association des Standards pour le Canada.
Allen-Bradley Drives

Publication 1756-5.36 - September 1999 PN 957236-15
Supersedes Publication 1756-5.36 - February 1998 © 1999 Rockwell International Corporation. Printed in the U.S.A.