Catalogs > Automation Systems Catalog > I/O > In-Cabinet Distributed I/O > 1794 FLEX I/O
1794 FLEX I/O
| Introduction |  |
Product Design | |
Typical Configurations | |
Specifications | |
I/O Communication Adapters | |
Digital I/O Modules | |
| Analog, Thermocouple, and RTD I/O Modules | |
Specialty I/O Modules | |
HART Smart Instrumentation | |
Terminal Bases and Accessories | |
Power Supplies | |
Encompass Partner Products | |
The I/O modules are interfaced to the I/O link through an I/O adapter module with a built-in 24V DC input power supply. The I/O modules receive power from the adapter/power supply through the backplane. The 120V AC to 24V DC power supply (1794-PS13 or 1794-PS3) is also available for powering the adapter/power supply. (When providing power for the 1794-FLA extended-local I/O FlexLogix adapter, treat the adapter as a communication adapter, not as an I/O module.)
| Cat. No. | Power Supply Input Voltage, Nom. | Power Supply Input Power | Apparent Input Power, Max. | Transformer Load, Max. | Output Current, Max. | Output Voltage, Nom. |
| 1794-PS3 | 120V/220V AC | 86 W | 205VA | 250VA | 3.0 A¬ | 24V DC |
| 1794-PS13 | 120V/220V AC | 36 W | 53VA | 90VA | 1.3 A | 24V DC |
| ¬ Horizontal mount; 2.8 A all other mounting. | ||||||
Power Requirements and Transformer Sizing
These graphs display backplane power load.
- Use the real power value in watts for determining the amount of heat dissipation you will have inside the enclosure.
- Use the apparent power value in VA for estimating power distribution sizing.
- Use the transformer load value in VA of each power supply plus all other loads on a transformer to determine the required transformer size.
|
|
