Establishing The Setting And Cabling - Siemens S5-155U System Manual

Power Supply Units
Establishing the setting and
cabling
Establishing the jumper
settings
Function Selection
Battery monitor
- switched on for rechargeable
battery and battery
- switched on for battery and
off for rechargeable battery
- switched off
Reaction of battery monitoring
following battery failure
- /BAU signal active following
return of line voltage
- /BAU signal active following
return of line voltage and
during operation
After failure of more than one fan
or inadequate air flow
- PSU shutdown
- No PSU shutdown
Voltage monitor
- switched off
- switched on
Relay alarm
- driven by fan monitor and
output inhibit
- driven only by fan monitor
4 - 28
The power supply unit is delivered with the settings shown in bold
print in the following table.
Mark your chosen settings in the right-hand column and use this chart
for the subsequent implementation.
Jumper Setting
MM - NN closed
MA - NA closed
MM - NN closed
MA - NA open
MM - NN open
MA - NA irrelevant
MB - NB open
closed
closed
F-R
open
closed
BA-EX
open
closed
BB-AA
open
If your selection is the same as all the settings marked in bold print,
you need not change the jumper settings.
Application/Note
Redundant backup
If, for example, no redundance is
required in backup, i.e. the
rechargeable battery is missing
e.g. monitoring is not needed for
EU without backup
The possibility of evaluating the
battery monitoring during
operation is dependent on the
CPU in use
Caution: To prevent overheating
of modules, the PSU must be shut
down after 60 s at the latest (e.g.
by time relay)
Monitoring of load voltage input
switched off
Monitoring of load voltage input
switched on
Fault message initiated by fan
failure/output inhibit active; can
be signalled to control room, for
example.
Fault message initiated by fan
failure; can be signalled to control
room, for example.
System Manual
C79000-B8576-C199-03
( )