Description

The Allen Bradley 1734-OB8 is a 24V Dc source output module with eight channels, designed to power electrical loads such as pilot lamps, relays, and solenoid actuated devices, that operate in the range of 10-28.8 VDC. It is used to execute commands from the controller’s memory to actuate Final Control Elements (FCE), whether manually or automatically.

• Output Voltage: 24 VDC
• No. of outputs: 8; Sourcing output
• POINTBus Current: 75 mA
• Power Dissipation: 2.0 Watt/6.8 BTU/hour
• Outputs: 8
• Module Location: 1734-TB or 1734-TBS wiring base assembly
• Keyswitch position: 1
• Enclosure type rating: None (open-style)
• Output Signal delay: 0.1 ms
• Output Current per module, max.: 3:00 AM
• Output Current per channel, nom.: 1:00 AM
• Module Status indicators: 2 green/red, module / network status
• Input status indicators: 8 yellow, logic side
• Electronically Protected: Yes
• Output Current: 3 amps/module
• Weight, approx.: 35.4 g (1.25 oz)
• Dimensions: 56 x 12 x 75.5 mm (2.2 x 0.47 x 2.97 in.)

This output module is small and compact, supporting DIN rail mounting, and has a physical dimension of 56.0 x 12.0 x 75.5 mm (2.21 x 0.47 x 2.97 in.). It can be attached to any adjacent POINT I/O module or POINT I/O communication adapter, with the limit on the number of instances of 1734-OB8 being determined by the controller’s memory capacity and the number of allowed POINT I/O nodes that a particular communication protocol and adapter can support.

The 1734-OB8 is not a standalone device and requires a POINT I/O communication adapter to manage the bi-directional transfer of data between the controller and the POINT I/O module. It is bus powered, drawing power from the POINT I/O bus with a rated current draw of 75 mA. Connection to this module requires the use of a 1734-TB or 1734-TBS wiring base assembly.

The 1734-OB8 has an output current rating of 1.0 A per output, not to exceed 3.0 A maximum per module, with a minimum ON-state voltage of 10VDC and a maximum ON-state voltage of 28.8VDC. It has a surge current rating of 2 Amps for 10 milliseconds that is repeatable for 3 seconds.

The product’s isolation voltage is 50 Volts, continuously tested at 2500 Volts DC for 60 seconds. The 1734-OB8’s external DC power supply is 32mA, with an approximate dimension of 56.0 x 12.0 x 75.5 millimeters and a wiring category of 2 ON-signal ports.

The 1734-OB8 has an operating temperature of -25 to 55 degrees Celsius and a non-operating temperature of -40 to 85 degrees Celsius. It has an operating shock of 30G and a non-operating shock of 50G, with a vibration of 5G at 10 to 500 Hertz and a relative humidity of 5 to 95%, non-condensing.