ABB Power Supply SD 802F / SD 812F

Features

Input voltage 115 – 230 VAC (self adjusting), output is elec

trically isolated

Power supply outputs provide:

SA 801 F: 5 V DC / 5 A and 3.3 V DC / 5 A

SA 811 F: 5 V DC / 5.5 A and 3.3 V DC / 6.5 A

Enhanced power-fail prediction and shutdown procedures

LED indication for power supply status and operating

status of the AC 800F

SD 802F / SD 812F

Short circuit proof, current limited

20 ms backup energy for use in the event of primary power

failure, according to NAMUR

Description

The AC 800F modules are supplied with 5 V DC / 5 A and

3.3 V DC / 5 A auxiliary power by the SA 801F or 5 V DC / 5.5 A

and 3.3 V DC / 6.5 A by the SA 811F power supply. The power

supply has open-circuit, overload and sustained short-circuit

protection. The electronically controlled output voltage provides

high stability and low residual ripple.

In case of power loss ≥5 ms, the power supply module gener

ates a power-fail signal. This signal is used by the CPU module

to shut down operations and enter to a safe state. This is re

quired for a controlled restart of the system and the user appli

cation when power is restored. The output voltage remains

within its tolerance limits for at least another 15 ms. Altogether a

mains voltage drop of 20 ms will be managed.