Installation Instructions
DC (24V) Isolated Output
Module
(Catalog Number 1771–OQ16 Series C)
To the Installer
This document provides information on:
For information on:
Important User Information
Preinstallation Considerations
4
Calculate Power Requirements
Determine Module Placement in the Chassis
4
4
Key the Backplane Connector
5
Install the Module and Field Wiring Arm
6
Connect Wiring to the Output Module
7
Replacing the Fuse
11
For this reference information
Intepreting the Status Indicators
Hazardous Location Approval
Specifications
Important User Information
See page
1
See page
10
12
13
Because of the variety of uses for the products described in this
publication, those responsible for the application and use of these
products must satisfy themselves that all necessary steps have been
taken to assure that each application and use meets all performance
and safety requirements, including any applicable laws, regulations,
codes and standards. In no event will Rockwell Automation be
responsible or liable for indirect or consequential damage resulting
from the use or application of these products.
Any illustrations, charts, sample programs, and layout examples
shown in this publication are intended solely for purposes of
example. Since there are many variables and requirements associated
with any particular installation, Rockwell Automation does not
assume responsibility or liability (to include intellectual property
liability) for actual use based upon the examples shown in this
publication.
Publication 1771ĆIN057B-EN-P - November 2002
2
DC (24V) Isolated Output Module
Allen–Bradley publication SGI–1.1, Safety Guidelines for
Application, Installation, and Maintenance of Solid–State Control
(available from your local Rockwell Automation office), describes
some important differences between solid–state equipment and
electromechanical devices that should be taken into consideration
when applying products such as those described in this publication.
Reproduction of the contents of this copyrighted publication, in
whole or part, without written permission of Rockwell Automation,
is prohibited.
Throughout this publication, notes may be used to make you aware
of safety considerations. The following annotations and their
accompanying statements help you to identify a potential hazard,
avoid a potential hazard, and recognize the consequences of a
potential hazard.
WARNING
!
ATTENTION
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 may lead to personal injury or
death, property damage, or economic loss.
!
Identifies information that is critical for
IMPORTANT successful application and understanding of the
product.
Publication 1771ĆIN057B-EN-P - November 2002
DC (24V) Isolated Output Module
ATTENTION
!
3
Environment and Enclosure
This equipment is intended for use in a Pollution
Degree 2 industrial environment, in overvoltage
Category II applications (as defined in IEC
publication 60664–1), at altitudes up to 2000
meters without derating.
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.
See NEMA Standards publication 250 and IEC
publication 60529, as applicable, for explanations
of the degrees of protection provided by different
types of enclosures. Also, see the appropriate
sections in this publication, as well as the
Allen–Bradley publication 1770–4.1, (“Industrial
Automation Wiring and Grounding Guidelines”),
for additional installation requirements pertaining
to this equipment.
Publication 1771ĆIN057B-EN-P - November 2002
4
DC (24V) Isolated Output Module
ATTENTION
!
Preventing Electrostatic Discharge
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
•
•
•
•
•
PreĆinstallation
Considerations
static.
Wear an approved grounding wriststrap.
Do not touch connectors or pins on component
boards.
Do not touch circuit components inside the
equipment.
If available, use a static–safe workstation.
When not in use, keep modules in appropriate
static–safe packaging.
This module is designed to operate with dc relays and other dc
output devices.
This module can be used in all 1771 I/O chassis except 1771-A1, A2
and A4 chassis. It can also be used in the 1771-AM1 and -AM2
chassis.
This module is not compatible with the 1771-AL local I/O adapter.
Calculate Power
Requirements
Determine Module
Placement in the Chassis
The isolated output module is powered by the power supply
connected to the I/O chassis backplane. The module requires a
maximum current of 400mA from the +5V dc output of this supply.
Total the current requirements of this module with the other modules
in the I/O chassis to avoid overloading the supply or the I/O chassis
backplane.
Group your modules to minimize adverse effects from radiated
electrical noise and/or heat. We recommend the following:
• Group analog input and low voltage dc modules away from ac
modules or high voltage dc modules to minimize electrical noise
interface.
• Place analog input modules and other I/O modules sensitive to
heat away from slot power supplies to minimize adverse heat
effects.
Publication 1771ĆIN057B-EN-P - November 2002
DC (24V) Isolated Output Module
Key the Backplane
Connector
ATTENTION
!
Place your module in any slot in the chassis
except the leftmost slot, which is reserved for
processors or adapters.
ATTENTION
!
5
A module inserted into a wrong slot could be
damaged by improper voltages connected through
the wiring arm. Use keying bands to prevent
damage to the module.
Position the keying bands in the backplane connectors to correspond to
the key slots on the module.
Place the keying bands:
- between 22 and 24
- between 32 and 34
Observe the following precautions
when inserting or removing keys:
• insert or remove keys with your
fingers
• make sure that key placement is
correct
Incorrect keying or the use of a tool
can result in damage to the
backplane connector and possible
system faults.
I/O chassis
Upper Connector
You can change the position of these bands if
subsequent system design and rewiring makes
insertion of a different type of module necessary.
11022ĆI
Publication 1771ĆIN057B-EN-P - November 2002
6
DC (24V) Isolated Output Module
Install the Module and
Field Wiring Arm
WARNING
!
ATTENTION
!
When you insert or remove the module while
backplane power is on, or you connect or
disconnect the wiring arm with field power
applied, an electrical arc can occur. This could
cause an explosion in hazardous location
installations. Be sure power is removed or the area
is nonhazardous before proceeding.
Remove power from the 1771 I/O chassis
backplane and field wiring arm before removing
or installing an I/O module.
• Failure to remove power from the backplane or
wiring arm could cause module damage, degradation of performance, or injury.
• Failure to remove power from the backplane
could cause injury or equipment damage due to
possible unexpected operation.
1771ĆA1B, ĆA2B, ĆA3B, ĆA3B1, ĆA4B I/O chassis
1771ĆA1B, ĆA2B, ĆA3B1, ĆA4B Series B I/O chassis
locking tab
locking bar
locking bar pin
card guides
card guides
module
Snap the chassis latch over
the top of the module to secure it.
module
Swing the chassis locking bar down into place to secure
the modules. Make sure the locking pins engage.
19809
wiring arm
Attach the wiring arm (1771ĆWN) to the horizontal
bar at the bottom of the I/O chassis.
The wiring arm pivots upward and connects with
the module so you can install or remove the
module without disconnecting the wires.
1771ĆWN
remove
horizontal bar
install
17643
The 1771–OQ16 series C module is a modular component of the
1771 I/O system requiring a properly installed system chassis. Refer
to publication 1771–IN075 for detailed information on acceptable
chassis, proper installation and grounding requirements. Limit the
maximum adjacent slot power dissipation to 10W maximum.
Publication 1771ĆIN057B-EN-P - November 2002
DC (24V) Isolated Output Module
Connect Wiring to the
Output Module
7
Make wiring connections to terminals on the field wiring arm (cat.
no. 1771-WN) shipped with the module.
Attach the wiring arm to the pivot bar on the bottom of the I/O
chassis. The wiring arm pivots upward and connects with the module
so you can install or remove the module without disconnecting the
wires.
1. Make certain all power is removed from the module before
making wiring connections.
2. Swing the wiring arm up into position on the front of the module.
The locking tab on the module will secure it into position.
3. Make connections to the field wiring arm as shown in the
connection diagram below. (Use the label on the front of the
wiring arm to identify your wiring.)
ATTENTION
!
The field wiring arm terminal identification
number is not the same as the number of the bit
which controls that output. You should identify
the labels on the wiring arm with the name or
number of the device connected at each terminal.
Publication 1771ĆIN057B-EN-P - November 2002
8
DC (24V) Isolated Output Module
Connection Diagram for the 1771–OQ16 Series C Isolated
Output Module
Alternate
Load
Location
Load
+dc - 0
+dc - 1
2
Output 0
4
Output 1
+dc - 2
6
Output 2
+dc - 3
Not Used
8
+dc - 4
12
+dc - 5
14
+dc - 6
16
+dc - 7
Not used
18
+dc - 10
22
+dc -11
24
+dc - 12
+dc - 13
26
Output 3
Not used
Output 4
Output 5
10
Output 6
Output 7
20
Output 11
Output 12
Output 13
28
Not used
30
+dc - 14
32
+dc - 15
34
+dc - 16
36
+dc - 17
38
Not used
40
Load
Not used
Output 10
Not used
Output 14
Output 15
Output 16
Output 17
Not used
(Actual wiring runs in this direction.)
dc High
+
ATTENTION
24V dc
Supply
dc Return
-
Use copper wires suitable for 35oC above
surrounding ambient.
!
Note: A shorting bar can be used to connect the commons if no
channel-to-channel isolation is required.
You should identify the labels on the wiring arm with the name or
number of the device connected at each terminal.
Publication 1771ĆIN057B-EN-P - November 2002
10565-I
DC (24V) Isolated Output Module
9
You can use an output of the 1771-OQ16 module to drive an input of
a dc input module (1771-IQ16) to indicate status, such as the turning
on of a motor starter (see below).
Driving an Input with an Output
DC (24V) Isolated Input Module
(Cat. No. 1771ĆIQ16)
DC (24V) Isolated Output Module
(Cat. No. 1771ĆOQ16)
+dc - 0
+dc - 1
2
+dc - 2
+dc - 3
Not Used
+dc - 4
+dc - 5
+dc - 6
+dc - 7
Not used
6
+dc - 10
+dc -11
+dc - 12
+dc - 13
Not used
+dc - 14
+dc - 15
+dc - 16
+dc - 17
Not used
Output 0
Output 1
Output 2
Output 3
Not used
Output 4
Output 5
Output 6
Output 7
Not used
Output 10
4
8
10
12
14
16
18
20
22
Output 11
24
Output 12
26
Output 13
Not used
Output 14
Output 15
28
30
32
34
Output 16
Output 17
Not used
36
38
40
Gnd - 0
Gnd - 1
2
Gnd - 2
Gnd - 3
Not Used
6
Gnd - 4
12
Gnd - 5
Gnd - 6
Gnd - 7
Not used
Gnd - 10
Gnd - 11
14
Gnd - 12
Gnd - 13
Not used
Gnd - 14
Gnd - 15
Gnd - 16
Gnd - 17
Not used
26
4
8
10
16
18
20
22
24
28
30
32
34
36
38
Input 0
Input 1
Input 2
Input 3
Not used
Input 4
Input 5
Input 6
Input 7
Not used
Input 10
Input 11
Input 12
Input 13
Not used
Input 14
Input 15
Input 16
Input 17
Not used
40
(Actual wiring runs in this direction.)
+
dc High
24V dc
Supply
ATTENTION
dc Return
10566-I
Use copper wires suitable for 35oC above
surrounding ambient.
!
Publication 1771ĆIN057B-EN-P - November 2002
10
DC (24V) Isolated Output Module
Interpreting the Status
Indicators
The module has 18 indicators, consisting of 16 output status
indicators, an active indicator and a fuse blown indicator. The 16
status indicators will light when an ”on” signal has been
communicated between the module and the system backplane.
Status Indicators
Output State Indicators
(red)
ACTIVE
00 10
01 11
02 12
03 13
04 14
05 15
06 16
07 17
FUSE
ACTIVE Indicator (green)
Fuse Blown Indicator
(red)
10567-I
The ACTIVE indicator will light when the module has started up and
successfully initialized. The FUSE blown indicator will light when
the fuse has cleared or been removed and the channel associated with
that fuse has been turned ”on.” The fuse-blown circuit will not
operate if the applied voltage to that channel is above the specified
minimum ”on-state” voltage, and the output load current is less than
or equal to 5mA. The FUSE blown indicator will reset after the fuse
has been replaced and chassis power has been cycled.
Publication 1771ĆIN057B-EN-P - November 2002
DC (24V) Isolated Output Module
Replacing a Fuse
11
Each module output is individually fused. You can easily access the
module fuses through the access hole provided in the component side
cover. Follow the procedure below.
ATTENTION
Remove power from the 1771 I/O chassis
backplane and wiring arm before removing or
installing an I/O module.
!
• Failure to remove power from the backplane
could cause injury or equipment damage due to
possible unexpected operation.
• Failure to remove power from the backplane or
wiring arm could cause module damage,
degradation of performance, or injury.
If a blown fuse occurs:
1. Turn off power to the I/O chassis backplane.
2. Pivot the wiring arm away from the module and pull the module
from the I/O chassis.
3. Use a small common screwdriver to reach through the front of the
module and carefully pry one end of the fuse out of its holder.
2. Reach through hole in side cover
and twist and pull to remove fuse.
1. Pry up on one end of the fuse
to remove it from the holder.
18532
4. Reach through the access hole on the side of the module and
carefully twist and pull to remove the blown fuse. Replace it with
a 3A 2AG fast-acting fuse (Littelfuse part number 225003).
5. Reinstall the module in the I/O chassis.
6. Reposition the wiring arm.
7. Restart system power.
Publication 1771ĆIN057B-EN-P - November 2002
12
DC (24V) Isolated Output Module
The following information applies when operating this equipment in hazardous
locations:
Products marked CL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2 Groups A, B, C, and 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.
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.
• If this product contains batteries, they must only be changed in an area known
to be nonhazardous.
Informations sur l'utilisation de cet équipement en environnements dangereux:
Les produits marqués CL I, DIV 2, GP A, B, C, D ne conviennent que 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 systéme, le code de température le plus
défavorable (code de température le plus faible) peut eatre utilisé pour déterminer le code de température
global du systéme. Les combinaisons d'equipements dans le systéme sont sujettes à inspection par les
autorités locales qualifiées au moment de l'installation.
AVERTISSEMENT
!
Publication 1771ĆIN057B-EN-P - November 2002
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 1, Division 2.
• S'assurer que l'environnement est classé non dangereux avant de changer les
piles.
DC (24V) Isolated Output Module
Specifications
13
Outputs per Module
16
Module Location
1771ĆA1B thru Ć A1B or later I/O Chassis
Voltage Rating
10 to 32V dc
Maximum Output Current
2.0A per output; 32.0A maximum per module at 0-45oC;
Derate linearly to 1.5A per output, 24A maximum per module at 60oC See derating curve.
Minimum Output Current
5mA
OnĆstate Voltage Drop (maximum)
0.34A per output at 2A
OffĆstate Leakage Current
(maximum)
0.5mA per output @ 32V dc, 25oC
Surge Current (maximum)
4A for 10ms per output., repeatable every 2 sec.
Power Rating
0.68W per output (maximum) @ 2A
Output Signal Delay Off to On
On to Off
100μs (max);
300μs (max)
Power Dissipation
13.0 Watts (max); 2.0 Watts (min)
Thermal Dissipation
44.3 BTU/hr (max); 6.8 BTU/hr (min)
Adjacent Slot Power Dissipation
10.0 Watts
Backplane Current
400mA maximum
Isolation Voltage
Tested for 1s at 1500V channelĆtoĆchannel,
1500V channel to backplane
Maximum Cable Length
1000 ft (304.8 m)
Conductors
14 to 22 gauge (2.5mm2 to 0.25mm2) stranded or solid copper wire rated
at 60oC or greater1, 2
3/64 inch insulation maximum
23
Wire Size
Category
Environmental Conditions
Operating
Temperature
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)
32 to 140°F (0o to 60oC) See derating curve.
Storage Temperature
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 to 185°F (-40 to 85oC)
Relative Humidity
IEC 60068-2-30 (Test Db, Unpackaged, Nonoperating Damp Heat)
5 to 95%, noncondensing
Shock
Operating
Nonoperating
IEC 60068-2-27 (Test Ea, Unpackaged Shock)
30g
50g
Vibration
IEC 60068-2-6 (Test Fc, Operating)
2g @ 10-500Hz
ESD Immunity
IEC 61000-4-2
4kV indirect discharges
Radiated RF Immunity
IEC 61000-4-3
10V/m, with 1kHz sine-wave 80% AM from 30MHz to 1000MHz
EFT/B Immunity
IEC 61000-4-4
+1kV @ 5kHz on signal ports
Surge Transient Immunity
IEC 61000-4-5
+1kV line-line (DM) and +2kV line-earth (CM) on signal ports
Specifications continued on next page.
Publication 1771ĆIN057B-EN-P - November 2002
14
DC (24V) Isolated Output Module
Conducted RF Immunity
IEC 61000-4-6
10V rms with 1kHz sine wave 80% AM from 150kHz to 30MHz
Emissions
CISPR 11
Group 1, Class A (with appropriate enclosure)
Enclosure Type Rating
None (open-style)
Keying
Between 22 and 24
Between 32 and 34
Fuse
3A 2AG Fast Acting fuses (1 per output) Littelfuse P/N 225003
(Optional fuse kit Cat No. 1771ĆFF contains 5 fuses)
Field Wiring Arm
Catalog Number 1771ĆWN
Wiring Arm Screw Torque
7-9 pound-inches (0.8-1.0Nm)
Certifications
(when product is marked)
UL
1
UL Listed Industrial Control Equipment
CSA
CSA
CSA Certified Process Control Equipment
CSA Certified Process Control Equipment for Class I,
Division 2 Group A, B, C, D Hazardous Locations
CE4
European Union 89/336/EEC EMC Directive,
compliant with:
EN 50082-2, Industrial Immunity
EN 61236, Meas./Control/Lab., Industrial Requirements
EN 61000-6-2, Industrial Immunity
EN 61000-6-4, Industrial Emissions
C-Tick4 Australian Radiocommunications Act, compliant with:
AS/NZS 2064, Industrial Emissions
One or two 14-22 AWG solid or stranded copper wires per terminal. Must be same size. Do not intermix solid and stranded wires.
Use copper wire only.
2 14AWG connected to all terminals may not allow the field wiring arm cover to close. A smaller wire size may be required.
3 You use this conductor category information for planning conductor routing as described in publication 1770Ć4.1, Industrial
Automation Wiring and Grounding Guidelines.
4 See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates and other certification details
Publication 1771ĆIN057B-EN-P - November 2002
DC (24V) Isolated Output Module
15
Derating Curve for the 1771-OQ16/C
2.5
Output Current - Amperes
2
1.5
1
0.5
0
0
10
20
30
Temperature (oC)
40
45
50
60
Publication 1771ĆIN057B-EN-P - November 2002
Publication 1771ĆIN057B-EN-P - November 2002
Supersedes Publication 1771-5.57 - November 1999
PN957707-90
Copyright 2002 Rockwell Automation, Inc. Printed in USA
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