Catalogs > Automation Systems Catalog > Programmable Controllers > PLC-5 System > Power Supplies
Power Supplies
Power Supplies
Choose from chassis-based and stand-alone power supplies for your PLC-5 system.
Chassis-based Power Supplies
The power supply modules are used in 1771 Universal I/O chassis to provide 5V DC power directly to the chassis backplane. These power supplies occupy one or two slots and can provide up to 8 A per supply to the I/O chassis. Power supply modules can be paralleled to provide up to 20 A per chassis @ 60 °C (or up to 24 A per chassis at 55 °C). Refer to the power supply selection chart for compatibility information.
Benefits
- Require no space outside the I/O chassis.
- Connect directly to the I/O chassis backplane.
- Contain output-power indicators that indicate if 5V DC is being supplied to the backplane.
- Can be paralleled (using 1771-CT cable) to provide up to 16 A of current per chassis (1771-P4S, -P6S, -P4S1, -P6S1).
- Single failure-proof chassis power of up to 20 A of current per chassis using redundant configurations (1771-P4R, -P6R).
Typical Configurations
|
Stand-alone Power Supplies
|
Allen-Bradley stand-alone power supplies provide DC voltages as noted. The 1771-P7 and -PS7 power supplies provide 5V DC to power 1771 I/O chassis for installed processors or adapters and I/O modules. The 1771-PS7 power supply additionally provides 5V, ±15V, and 24V DC user power. The 1794-PS1 power supply provides 24V DC for a FLEX I/O adapter and its I/O modules.
Benefits
- Various output current ranges to meet different power supply needs.
- Mounted along side an I/O chassis, these supplies do not require I/O chassis slots.
Typical Configuration
|
