Expansion Units Power Supply Units; Installation Guidelines - Siemens S5-135U/155U System Manual

Central Controllers and Expansion Units Power Supply Units
Function Selection
Mains buffering
If your selection is the same as all the settings marked in bold print, you need
not change the jumper settings.
Establishing the
Wiring of the power supply unit must be planned within the scope of wiring
Wiring
of the entire control system. The information required for the purpose and
decision-making aids, for example, for local or central grounding, can be
found in Chapter 3: Installation Guidelines.
Establishing the Three relay outputs allow you to install additional external signaling circuits
Signaling Circuits
for fault states, for example, to connect a cabinet lamp or horn.
The following table contains the information required on the relay states:
Relay
(Normal Operational State)
Warning All fans are in order.
Alarm Adequate air flow, at least two fans are running.
BatteryWarn Lithium battery and rechargeable battery are in
ing order (U not connected).
batt ext
4-26
Jumper Setting
FX-VA closed A stored energy time of 5 to 10 ms is
6-22 closed guaranteed in the event of a power
failure.
The stored energy time is dependent on
the input voltage and the load.
FX-VA closed A stored energy time of 20 to 30 ms is
6-22 open guaranteed in the event of a power
failure.
The stored energy time is not dependent
on the input voltage and the load.
FX-VA open A stored energy time of
6-22 irrelevant guaranteed in the event of a power
failure.
The stored energy time is dependent on
the input voltage and the load.
One or more fans have failed.
Inadequate air flow or at least two fans have
failed.
Lithium battery or rechargeable battery has failed
(no U
Application/Note
20 ms is
(Fault State/Idle State)
).
batt ext
System Manual
C79000-G8576-C199-06
(X)