1746-OW8 Ser A
1746-OW8/A, Series A, Rev A
The Allen-Bradley 1746-OW8 is a SLC 500 Digital Contact Output Module. This Digital Contact Output Module has Eight (8) Normally Open (N.O.) Relay channels with operating Voltage of 5-265 Volt AC or 5-125 Volts DC. It has Two (2) output groups with Four (4) channels per Common.
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About 1746-OW8 Ser A
The 1746-OW8 Series A output module is an SLC 500 digital contact output module manufactured by Allen-Bradley. It is an 8-channel relay output module that is used for programmable controllers. It is enclosed inside a chassis mounting and it is certified with standards like the GOST and KC standards. The operating temperature range of the module is between 0 and 60 degrees Celsius. It is a revised version of the original Allen-Bradley OW8 output module. It has 8 outputs and 4 outputs point per common group. The operating voltage of the digital contact output module ranges from 5 to 265 Volts AC or from 5 to 125 Volts DC for regular load conditions. The current output for an AC connection is 1.5 Amps and the current output for a DC connection is 1.2 Amps. The 1746-OW8 Series A output module has a backplane current within a range of 85 to 90 milliamps. The logic module can connect up to 3 chassis with 30 I/O modules to a single controller or communication adapter.
The 1746-OW8 Series A output module has a maximum off-state leakage of 0 milliamps. The minimum load current is 10 mA at 5 Volts DC. The digital contact output module has a thermal dissipation of 0.138 Watts per point with a minimum dissipation of 2.59 Watts and a maximum dissipation of 3.7 Watts. The module has a signal delay of 10 milliseconds for both the on-state and the off-state. The operating frequency range lies between 10 and 500 Hertz. It can accommodate 2 G of vibrations and shocks rated at up to 30 G when the module is in the running mode. The 1746-OW8 Series A output module is equipped with LED indicators to display the status of each output. The indicators also help the users to monitor and troubleshoot the module when necessary.
Technical specifications for 1746-OW8
| Manufacturer | Rockwell Automation |
|---|---|
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1746-OW8 |
| Series | SLC 500 |
| Module Type | Digital Contact Output Module |
| Outputs | 8 |
| Operating Voltage | 5-265 Volt AC or 5-125 Volts DC |
| No. of groups | 2 |
| Points per group | 4 |
| Output Types | N.O. Relay Contact |
| Applications | Relay Contact Outputs (4 per Common) |
| Current/Output (120 VAC) | 1.5 amps |
| Step Response | 60 milliseconds in, 2.5 milliseconds out |
| Current/Output (24VDC) | 1.2 amps |
| Backplane Current | 0.85-0.9 A |
| Signal delay, max resistive load | On = 10.0 ms Off = 10.0 ms |
The Allen-Bradley 1746-OW8 SLC 500 Digital Input Module comes with Eight (8) outputs. This module has a voltage category of AC/DC Relay. The operating temperature is -25-60 deg. Celsius (-13-140 deg. Fahrenheit) and the nonoperating temperature is -40-85 deg. Celsius (-40-185 deg. Fahrenheit) with a relative humidity from 5-95% without condensation. The operating vibration of this module is 2g at 10-500 Hz and the operating shock of this module is 30g. The Allen-Bradley 1746-OW8 has a maximum heat dissipation of 3.7 Watts with 0.138 Watts per point.
The Allen-Bradley 1746-OW8 Digital Input Module has an operating voltage range of 5-125V DC and 5-265V AC at 47-63 Hz. The backplane current at 5V DC of this module is 85 mA. The backplane current at 24V DC of this module is 90 mA. The Allen-Bradley 1746-OW8 is supplied as open-type equipment. The 1746-OW8 is intended for use in industrial environments. This module should be installed in an environment with a pollution level no higher than Pollution 2 (as defined in the EN / IEC0664-1 publication) when applied in a Zone 2 environment. The enclosure should be accessible only by means of an appliance or tool. Do not disconnect equipment unless the power has been removed. Do not disconnect the equipment if the area it is in is dangerous. If this is disregarded, a dangerous electric arc will be created. The Allen-Bradley 1746-OW8 is an Eight (8) channel relay output module made by Allen-Bradley that is used with SLC 500 Programmable Logic Controller (PLC) platform. It is specifically compatible with fixed or modular style hardware for use with SLC 5/01, SLC 5/02, SLC 5/03, SLC 5/04 and SLC 5/05 controller.
Use this module with operating voltage categories of 5 -125 VDC and 5 - 265 VAC. This module is divided into Two (2) groups with 4Four (4) channels per group to allow operation with different or same voltages. Surge suppression devices may be installed to maximize the module’s designed operating lifespan.
Aside from SLC processors, this module is compatible for use in remote I/O topology. When used in Remote I/O chassis, slot 0 of the chassis is reserved for an SLC 500 communication adapter. Other slots are compatible for this module.
With the use of the 1746-OW8, the need of interposing relays may be eliminated. Interposing relays are typically used for operation with different voltage category. As this module already support the mentioned capability, the need for interposing circuit is eliminated, saving panel space and increasing cost effectiveness.
This module has similar signal delay rating of 10.0 ms for ON and OFF transitions at maximum resistive load. This module is certified for Class 1, Division 2 operation. The continuous current per module is 16.0 Ampere AC with 8.0 A per group. It occupies single slot of the chassis regardless of the installation location.