Siemens S5-135U/155U System Manual page 91

Establishing the
The power supply unit is delivered with the settings shown in bold print in
Jumper Settings
the following table.
Mark your chosen settings in the right-hand column and use this chart for the
subsequent implementation.
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
System Manual
C79000-G8576-C199-06
Central Controllers and Expansion Units Power Supply Units
Jumper Setting
MM - NN closed Redundant backup
MA - NA closed
MM - NN closed If, for example, no redundance is
MA - NA open required in backup, i.e. the rechargeable
battery is missing
MM - NN open For example, monitoring is not needed
MA - NA irrelevant for EU without backup
MB - NB open
MB - NB closed The possibility of evaluating the battery
monitoring during operation is
dependent on the CPU in use
F-R closed
F-R open Caution: To prevent overheating of
modules, the PSU must be shut down
after 60 s at the latest (for example, by
time relay)
BA-EX closed Monitoring of load voltage input
switched off
BA-EX open Monitoring of load voltage input
switched on
Fault message initiated by fan
failure/output inhibit active; can be f il
BB-AA closed
signaled to control room, for example.
BB-AA open Fault message initiated by fan failure;
can be signaled to control room, for
example.
Application/Note
g y
/ i hibi i b
(X)
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