Features
Redundant input voltage 24 V DC, provides operation in
accordance with NAMUR
Power supply outputs provide:
SD 802F: 5 V DC / 5 A and 3.3 V DC / 5 A
SD 812F: 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
Short circuit proof, current limited
20 ms backup energy for use in the event of primary power
failure, according to NAMUR
ABB Power Supply SD802F/SD812F
Features
Redundant input voltage 24 V DC, provides operation in
accordance with NAMUR
Power supply outputs provide:
SD 802F: 5 V DC / 5 A and 3.3 V DC / 5 A
SD 812F: 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
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 SD 802F power supply
module, resp. with 5 V DC / 5.5 A and 3.3 V DC / 6.5 A by the
SD 812F. The power supply has open-circuit, overload and sus tained short-circuit protection. The electronically controlled out put 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
an input voltage drop of 20 ms will be managed.
LED Displays
Power
Green Internal supply voltage is available
Failure
Off Normal status
Orange Self test
Flashing orange Overtemperature occurred during opera tion
Red Hardware failure of the basic unit
Flashing red Software failure of the system
Run/Stop
Green Processing active
Flashing green Process was stopped and is now started
again
Red Processing inactive
Flashing red Process was active and is stopped now
Orange Self test
Off Software initialization
Prim/Sec In case of redundancy please see the
LED’s meaning in manual “Mounting and
Installation Instruction”.
For not redundancy the states are:
Orange Self test
Off Normal status
Operator Controls
Run/Stop switch Connected to LED
Toggle Prim/Sec For redundancy.
Toggles between primary and secondary
AC 800F (operational on primary AC 800F
only, and only if a secondary AC 800F is
available)
Reset Reset button
press and hold > 4 s for coldstart
Front Panel Connections
Power supply Two connectors for 24 V DC,
automatic input selection when used with
single power supply
Diag For diagnostics and optional radio controlled clock
9-pin male connector

Technical Data SD 802F
Input voltage 2 x direct current 24 V DC
permissible range 19.2 - 32.5 V DC
Input current at
nominal load 1.3 A at 24 V DC
Rated input power 31 W
Backup energy for
the event of
power failure > 20 ms
Fuse For each supply: subminiature fuse
3.15 AT, soldered
Output voltage 3.3 V DC (± 3%) typical
5 V DC (± 3%) typical
Output current 0.5 - 5 A
Current limit approx. 6 A
Automatic return to normal operation after
short circuit
Total output power max. 26.5 W
Weight 0.460 kg
Technical Data SD 812F
Input voltage 2 x direct current 24 V DC
permissible range 19.2 - 32.5 V DC
Input current at
nominal load 1.7 A at 24 V DC
Rated input power 41 W
Backup energy for
the event of
power failure > 20 ms
Fuse For each supply: subminiature fuse
3.15 AT, soldered
Output voltage 3.3 V DC (± 3%) typical
5 V DC (± 3%) typical
Output current 0.5 - 6.5 A to 3.3 V
0.5 - 5.5 A to 5.0 V
Current limit approx. 7.5 A
Automatic return to normal operation after
short circuit
Total output power max. 35 W
Weight 0.460 kg