In-Cabinet Distributed I/O

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1734 POINT I/O

Introduction Product Design Environmentals and Certifications I/O Adapter and Communication Interface Modules 1734D POINTBlock I/O Modules
Digital I/O Modules Analog I/O Modules Specialty I/O Modules Power Supplies Terminal Base Assemblies and RTBs
Power Supplies

All POINT I/O modules are powered from the backplane by a POINT I/O adapter module, which includes a built-in power supply, or an expansion power supply. For POINT I/O adapters power specifications see I/O Adapter and Communication Interface Modules.

Expansion Power Unit

The POINT I/O Expansion Power Supplies extend the backplane bus power and create a new field voltage partition segment for driving field devices for up to 17 I/O modules, depending on the current required for each module and the DIN-rail mounting position. The expansion power unit separates field power from I/O modules to the left of the unit, effectively providing functional and logical partitioning for:


Cat. No. Input Voltage Field Side Power Requirements, Max. Inrush Current, Max. PointBus Output Current Rating Power Consumption, Max. Power Dissipation, Max.
1734-EP24DC 24V DC (10…28.8V DC) 400 mA @ 24V DC (+20% = 28.8V DC max) 6 A for 10 ms Horizontal mounting: 1 A @ 5V DC for 10…19.2V input; 1.3 A @ 5V DC for 19.2…28.8V input
Vertical mounting: 1 A @ 5V DC for 10…28.8V input
9.8 W @ 28.8V DC 3.0 W @ 28.8V DC
1734-EPAC 120/240V AC (85…264V AC) 200 mA @ 120V AC, 100 mA @ 240V AC 2 A for 6 ms Horizontal mounting: 1.3 A @ 5.2V DC
Vertical mounting: 1.0 A @ 5.2V DC
15.1 W @ 264V AC 8.4 W @ 264V AC

Field Power Distributor

The POINT I/O Field Power Distributor Module (1734-FPD) passes through all POINT I/O backplane signals, but does not provide additional POINTBus backplane power. The field power distributor gives you the ability to change the field power distribution source for I/O modules to the right of the field power distributor. This facilitates logical or functional partitioning of low-channel count, high I/O mix applications using any of the communication adapters. Use the field power distributor with a broad range of voltage inputs including 5V DC to 250V DC and/or 24V AC to 240V AC applications and I/O modules.

Cat. No. Operating Voltage Range
1734-FPD 10…28.8V DC
120V/240V AC