Allen Bradley 1756-OA16 ControlLogix 16 Point D/O Module

 

Allen Bradley 1756-OA16 ControlLogix 16 Point D/O Module

The 1756-OA16 is a digital output module manufactured by Allen-Bradley under the ControlLogix Series. The digital output module comes with a voltage of 120 to 140 Volts AC with an operating voltage range is 74 to 265 Volts AC. Being a 16-point output module, the 1756-OA16's maximum power dissipation is 6.5 Watts at 60 degrees Celsius. The 1756-OA16 also has a backplane current of 400 mA at 5 Volts while the backplane current at 24 Volts is 2 mA. The 1756-OA16 supports two removable terminal blocks. These are the 1756-TBNH and 1756-TBSH. It comes with an isolation voltage of 50 Volts continuous. The maximum output current rating point is 0.5 Amps at 60 degrees Celsius while the maximum output current rating module is 4 Amps at 60 degrees Celsius. The 1756-OA16 can be located on any slot on the chassis.

This module is mounted to any compatible ControlLogix chassis 1756-A4, 1756/A7, 1756-A10, 1756-A13 and 1756-A17. It also requires a Removable Terminal Block (RTB) that serves as the termination points of I/O signals. It may be installed in local or remote I/O ControlLogix chassis. Local ControlLogix chassis is where the ControlLogix processor is installed while remote I/O chassis refers to a chassis that communicates to the local chassis through a communication module. This chassis may also be referred to as Remote I/O or distributed I/O.

This module has a Pilot duty rating of 0.5 A. It can energize or trigger inductive loads such as Solenoid actuated devices which may be valves, cylinders and other devices. It may also be used to activate relays even magnetic contactors however, if the module is planned to energize higher inductive loads with high inrush currents, it is recommended to install an isolation such as an interposing circuit to protect the module.

This module is compatible with any ControlLogix processor. It is also compatible with any ControlLogix communication module including encompass partner modules. It may also work along a GuradLogix module.

This module has front panel indicators that provide status of each channel. Whenever a channel is supplied with an appropriate signal, the dedicated LED indicator will be activated to confirm that the signal is received by the module.

1.What is the maximum current that can be drawn from each output?

Each output point can supply a maximum current of 0.5A.

2.Can I use the 1756-OA16 with other Allen Bradley PLC models?

No, the 1756-OA16 is specifically designed for use with ControlLogix controllers and is not compatible with other Allen Bradley PLC models.

3.Is the module suitable for use in hazardous environments?

The 1756-OA16 is certified for general industrial environments but is not rated for hazardous locations. For hazardous environments, consider the 1756-OA16H variant, which is designed for such applications.

4.How does the hot swap feature work?

The 1756-OA16 module can be replaced without powering down the system, allowing for quick maintenance and reduced downtime.

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