Allen-Bradley AC(12-120V)Output Installation Instructions
Allen-Bradley AC(12-120V)Output is a 16-point output module that provides reliable control of AC loads from 10V to 138V. It features zero-crossing technology for reduced contact stress and overload protection with a 12A fuse. Each output can handle up to 2A of current, with a maximum module current of 8A. It's compatible with various I/O chassis and works with a variety of Allen-Bradley products for industrial automation.
Advertisement
Advertisement
Installation Instructions
To The Installer
Important User Information
AC (12Ć120V) Output Module
Cat. No. 1771ĆOAD Series C
This document provides information on:
To
Important User Information
Important PreĆinstallation Considerations
Calculate Power Requirements
Select the Mode of the FuseĆblown Jumper
Key the Backplane Connector
Install the Module andFieldWiring Arm
Connect Wiring to the Output Module
Troubleshooting
For this reference information
Interpreting the Status Indicators
Replacing the Fuse
Hazardous Locations
Specifications
7
8
9
4
5
See page
1
5
11
See page
11
12
13
14
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 1771ĆIN024B-EN-P - November 2002
2
AC (12-120V) 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
!
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.
ATTENTION
!
Identifies information about practices or circumstances that may lead to personal injury or death, property damage, or economic loss.
IMPORTANT
Identifies information that is critical for successful application and understanding of the product.
Publication 1771ĆIN024B-EN-P - November 2002
AC (12-120V) Output Module
ATTENTION
!
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.
3
Publication 1771ĆIN024B-EN-P - November 2002
4
AC (12-120V) 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 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.
PreĆinstallation
Considerations
The 1771-OAD Series C module is compatible with all chassis except 1771-A1, 1771-A2 and 1771-A4 chassis. Make sure no other output module or single card block transfer module is placed in the same module group when using 2-slot addressing. Any discrete input module may be used within the same module group.
Using the 1771ĆOAD Series C Module with HalfĆwave Rectifying
Load Devices (single diode) and Indicator Lights
This module uses zero-crossing technology to allow turn-on when the output voltage is less than a specified voltage (typically 40 to
50V). This greatly reduces the stress on contacts and other devices that are sensitive to current surges.
•
When using this output module with a device that includes a single diode in series with the load, place a shunt resistor (39K ohm, 1W) across the load. This resistor allows proper output operation.
The shunt resistor may cause LED indicators to glow when the output is turned off. In this case, use an incandescent lamp in place of the LED.
•
When using a full-wave rectified device, the device may not turn off when the output is deenergized. Add a 2.5K ohm, 10W resistor in parallel with the device to provide proper operation.
•
If 24V ac incandescent indicator lights appear dim when used with the Series C module, place a 2.5K ohm, 10W resistor in parallel with the indicator. This will restore full brightness.
Publication 1771ĆIN024B-EN-P - November 2002
SimplifiedCircuit Diagram
Control
ZeroĆCrossing
OptoĆisolation
C1
L1
AC (12-120V) Output Module
39KΩ
Single rectifying diode in series with load.
Shunt Resistor required
5
1. When L2 is positive with respect to
L1, capacitor C1 is charged.
2. When the polarity switches, the diode prevents C1 from discharging.
3. With C1 charged(possibly up to line voltage), the zeroĆcrossing optoĆtriac sees that voltage, andwon't turn on.
4. The shunt resistor allows a bleedĆoff of the voltage on the capacitor, allowing the circuit to function properly.
Calculate Power
Requirements
Select the Mode of the
Fuse-Blown Jumper
Load
L2
No rectifying diode.
Shunt Resistor NOT required
L2
Load
Load
Full wave rectifier.
Shunt Resistor NOT required
L2
Note: A resistor may be requiredif the loadis less than 50mA.
Your module receives its power through the 1771 I/O chassis backplane from the chassis power supply. The module requires
295mA from the output of this supply. Add this to the requirements of all other modules in the I/O chassis to prevent overloading the chassis backplane and/or chassis power supply.
The fuse-blown jumper has two modes:
• the preset, standard (STD) mode – displays the fuse status on the red fuse-blown status indicator
• the customer side indication (CSI) mode – displays the fuse status in the input image table and on the red fuse-blown status indicator.
This mode configures the module as a 16 point output module that uses both the output and input image data tables of your controller. When a fuse blows, all 16 bits in the associated input image table will turn on (1).
For example, if you install the module in a PLC-5 system and address the module as O:012, then the fuse status bits are in
I:012.
To monitor the status of the module fuse, make certain that your user program monitors the module’s input image table for ‘‘on” bits.
Publication 1771ĆIN024B-EN-P - November 2002
6
AC (12-120V) Output Module
ATTENTION
!
Do not put the module jumper in CSI mode when you use this module in a complementary mode.
Your system will not operate properly.
To change the fuse blown jumper to the CSI mode:
1. Locate the fuse-blown jumper at the top-right edge of the module circuit board, as shown.
TopĆright edge of circuit board
CSI
Fuse Blown Jumper
(shown in preset
STD position)
STD
12636ĆI
2. Use your finger to slide the jumper off the STD position (the middle post and the left post).
3. Carefully reposition the jumper by sliding it onto the CSI position
(the middle post and the right post).
Publication 1771ĆIN024B-EN-P - November 2002
AC (12-120V) Output Module
Key the Backplane
Connector
ATTENTION
!
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.
Place your module in any slot in the chassis except the leftmost slot, which is reserved for processors or adapters.
ATTENTION
!
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.
Position the keying bands in the backplane connectors to correspond to the key slots on the module.
Place the keying bands:
- between 10 and 12
- between 20 and 22
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
7
Publication 1771ĆIN024B-EN-P - November 2002
AC (12-120V) Output Module
8
Install the Module and Field
Wiring Arm
WARNING
!
ATTENTION
!
1771ĆA1B, ĆA2B, ĆA3B, ĆA3B1, ĆA4B I/O chassis locking tab
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, ĆA3B1, ĆA4B Series B I/O chassis locking bar pin locking bar cardguides cardguides module
Snap the chassis latch over the top of the module to secure it.
Swing the chassis locking bar down into place to secure the modules. Make sure the locking pins engage.
module wiring arm
19809
Attach the wiring arm (1771ĆWH) to the horizontal bar at the bottom of the I/O chassis.
The wiring arm pivots upwardandconnects with the module so you can install or remove the module without disconnecting the wires.
1771ĆWH remove horizontal bar install
17643
The 1771–OAD 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 1771ĆIN024B-EN-P - November 2002
AC (12-120V) Output Module
Connect Wiring to the
Output Module
Make wiring connections to the 21 terminal field wiring arm (cat. no.
1771-WH) shipped with the module.
You must supply ac (L1) at terminals A through D on the fieldwiring arm, as shown. You needfour ac connections to accommodate the total required surge rating on the module without overstressing any single connection on the fieldwiring arm.
Jumper all ac (L1) connections together to prevent module damage.
Output 00
Output 01
Output 02
Output 03
Output 04
Output 05
Output 06
Output 07
Output 10
Output 11
Output 12
Output 13
Output 14
Output 15
Output 16
Output 17
L2/optional
L1
L1
L1
L1
12
13
14
15
10
11
16
17
E
04
05
06
07
C
D
A
B
00
01
02
03
Output
Device
L1 ac High
L2 ac Low
Field Wiring Arm
Cat. No. 1771ĆWH
(Actual wiring runs in this direction.)
12223-I
You must supply ac at terminals A through D on the wiring arm. You need four ac connections to accommodate the total required surge rating on the module without overstressing any single connection on the field wiring arm. Jumper all ac connections together to prevent module damage. Connect terminal E to ac Low.
ATTENTION
!
Observe proper polarity, as indicated in the connection diagram with dc power connections.
Reverse polarity, or application of ac voltage, could damage the module.
9
Publication 1771ĆIN024B-EN-P - November 2002
10
AC (12-120V) Output Module ac (12Ć120V)
Output Module
(Cat. No. 1771ĆOAD)
Driving an Input Module with an Output Module
You can use an AC (120V) Output Module (cat. no. 1771ĆOAD) to directly drive terminals on an AC/DC (120V) Input Module
(cat. no. 1771ĆIAD) as shown below.
ac/dc (120V)
Input Module
(Cat. No. 1771ĆIAD)
You can also use a 1771ĆOAD Output module to drive an AC/DC
(120V) Input Module (cat. no. 1771ĆIA) but you must connect one of the following between the output terminal andL2 (common) as shown below.
•
2500 ohm, 10W resistor
•
RGĆ1676Ć1 Electrocube (San Gabriel, California) ac (12Ć120V)
Output Module
(Cat. No. 1771ĆOAD) ac/dc (120V)
Input Module
(Cat. No. 1771ĆIA)
L1
120V ac High
L1
120V ac High
2500 ohm 10W resistor
L2 ac Low
L2 ac Low
Use the same ac power source to power both modules to ensure proper phasing and prevent module damage.
12224-I
L1
Publication 1771ĆIN024B-EN-P - November 2002
Interpreting the Status
Indicators
AC (12-120V) Output Module
11
The front panel has one green module active indicator, 16 red status indicators, and one red fuse-blown indicator.
ACTIVE
00
01
02
03
04
05
06
15
16
07 17
FUSE
11
12
13
14
Module Active
Indicator (green)
00 to 17 Status
Indicators (red)
Fuse Blown
Indicator (red)
12225-I
Indicator Mode
Active
Status
Standard Mode
(STD)
Customer Side
Indication (CSI)
STD or CSI
Fuse
Description
The active indicator lights when the rack power supply has properly established5V dc andthe processor is in RUN mode.
The active indicator lights when the rack power supply has properly established5V dc.
The status indicators light when voltage is present at the respective output terminal.
The fuse indicator lights when the fuse has blown or been cleared.
Troubleshooting
Use this table to help you interpret the 1771-OAD status indicators and to troubleshoot module and system faults.
Indicator Status
Module active ON (green)
Module active ON (green) and
Output status ON (red)
Module active ON (green) and
Output status OFF
Module active OFF and
Output status ON (red) or OFF
Fuse blown (red)
Description of Fault or System Status Action to Take
Normal Indication.
Check voltage at output point on the swing arm.
No voltage.
Voltage on the terminal.
1. The processor is in program mode.
2. Module not functioning properly.
None.
If voltage is present, take no action. If no voltage is present, check the fuse. If the fuse is OK, replace the module.
None.
Replace the module.
1. If module is in normal mode, take no action. If module is in CSI mode replace module.
2. Check the chassis power supply andprocessor. If they are OK, replace the module.
Outputs will not turn on.
Replace the fuse. If fuse replacement does not correct the problem, replace the module.
Publication 1771ĆIN024B-EN-P - November 2002
12
AC (12-120V) Output Module
Replacing the Fuse
The module’s output circuitry is protected from overload or shorts by a fuse. You can replace the fuse as outlined below.
1. Turn off all power to the I/O chassis and all output device power to the field wiring arm.
ATTENTION
!
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.
2. Remove the module from the chassis. Replace the blown fuse with a 12A, 250V rectifier fuse (1/4 x 1-1/4 inch), Bussman pt.
no. GBB12.
Fuse
Publication 1771ĆIN024B-EN-P - November 2002
3. Replace the module in the chassis and attach the field wiring arm.
4. Turn OFF all outputs to the module.
5. Turn ON power to the I/O chassis only.
6. Check that the red status indicators on the front of the module are off (no outputs on).
7. Turn on output device power to the field wiring arm.
8. Start with bit 00 and turn on individual outputs one at a time.
Turn off the previous output before turning on the next output.
AC (12-120V) Output Module
9. If the red fuse blown indicator turns on, note which output is faulty and trace the output wiring to the faulty device.
After correcting the fault problem, return to step 1 and begin again.
If you cannot locate a faulty output, return to step 8 and turn on 2 or more outputs at the same time. Total output current should not exceed 2A per output, or 8A total per module.
Hazardous Locations
The following information applies when operating this equipment in hazardous locations:
Products markedCL I, DIV 2, GP A, B, C, D" are suitable for use in Class I Division 2 Groups A, B, C, andD
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 removedor 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
!
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.
13
Publication 1771ĆIN024B-EN-P - November 2002
14
AC (12-120V) Output Module
Specifications
Outputs per Module
Module Location
Backplane Current
Isolation Voltage
Conductors Wire Size
Category
16
1771ĆA1B through ĆA4B or later I/O chassis, 1771ĆAM1, ĆAM2 chassis
Output Voltage Range
Output Current Rating
10 to 138V ac @ 47 Ć 63Hz
2A per output - not to exceed8A per module
Surge Current (maximum)
Minimum LoadCurrent
On State Voltage Drop (max.)
25A per output for 100ms, repeatable every 1 second
25A per module for 100ms, repeatable every 1 second
5mA per output
1.5V at loadcurrent > 50mA
5.8V at loadcurrent < 50mA
Off State Leakage Current (max.) 3.0mA per output @ 138V ac
Signal Delay (max.) Off to On
On to Off
Power Dissipation
Thermal Dissipation
Zero crossing 8.3ms @ 60Hz, 10.0ms @ 50Hz
Zero crossing 8.3ms @ 60Hz, 10.0ms @ 50Hz
13 Watts (max.), 1.5 Watts (min.)
48.0 BTU/hr (max.), 5.13 BTU/hr (min.)
295mA
Testedto 2500V dc for 1s
14-22AWG (2.5-0.25mm
2
) strandedcopper wire ratedat 75 o
C or greater
1
3/64 inch (1.2mm) insulation (max)
2
2
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 (0 o to 60 o
C)
Storage Temperature
Relative Humidity
Shock
Operating
Nonoperating
Vibration
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 85 o
C)
IEC 60068-2-30 (Test Db, Unpackaged, Nonoperating Damp Heat)
5 to 95%, noncondensing
IEC 60068-2-27 (Test Ea, UnpackagedShock)
30g
50g
ESD Immunity
Radiated RF Immunity
IEC 60068-2-6 (Test Fc, Operating)
2g @ 10-500Hz
IEC 61000-4-2
4kV indirect discharges
IEC 61000-4-3
10V/m, with 1kHz sine-wave 80% AM from 30MHz to 1000MHz
EFT/B Immunity
Surge Transient Immunity
Conducted RF Immunity
Emissions
IEC 61000-4-4
+1kV @ 5kHz on signal ports
IEC 61000-4-5
+1kV line-line (DM) and+2kV line-earth (CM) on signal ports
IEC 61000-4-6
10V rms with 1kHz sine wave 80% AM from 150kHz to 30MHz
CISPR 11
Group 1, Class A (with appropriate enclosure)
Specifications continued on next page.
Publication 1771ĆIN024B-EN-P - November 2002
AC (12-120V) Output Module
Enclosure Type Rating
Keying
None (open-style)
Between 10 and12
Between 20 and22
1
2
Fuse
FieldWiring Arm Standard
Optional
Wiring Arm Screw Torque
Relay Compatibility
Certifications
(when product is marked)
12A, 250V rectifier fuse (1/4 x 1Ć1/4 inch), Bussman GBB12, IEC 127
Type F (black)
Catalog Number 1771ĆWH
Catalog Number 1771ĆWHF (fused)
9 pound-inches (1.02Nm)
700-CL110A1
700-HB32A1
700-HC14A1
700-HC14A1-4
700-HF32A1
700-HT12AA1
100-A09
100-A18
100-A30
UL UL ListedIndustrial Control Equipment
CSA CSA CertifiedProcess Control Equipment
CSA CSA CertifiedProcess Control Equipment for Class I,
CE
2
Division 2 Group A, B, C, D Hazardous Locations
European Union 89/336/EEC EMC Directive,
CE
2
C-Tick
2 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
European Union 73/23/EEC LVD Directive, compliant with:
EN 61131-2, Programmable Controllers
Australian Radiocommunications Act, compliant with:
AS/NZS 2064, Industrial Emissions
You use this conductor category information for planning conductor routing as described in publication 1770Ć4.1, Industrial
Automation Wiring and Grounding Guidelines.
See the Product Certification link at www.ab.com for Declarations of Conformity, Certificates and other certification details
15
Publication 1771ĆIN024B-EN-P - November 2002
16
AC (12-120V) Output Module
Publication 1771ĆIN024B-EN-P - November 2002 PN957707-86
Copyright 2002 Rockwell Automation Inc. Printedin USA

Public link updated
The public link to your chat has been updated.
Advertisement
Key features
- 16 outputs
- 12A fuse
- 2A per output
- Zero-crossing technology
- Compatible with various I/O chassis
- Allen-Bradley compatibility