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Siemens S5-135U/155U - Setting and Connecting the Power Supply Unit

Siemens S5-135U/155U
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4-23
System Manual
C79000-G8576-C199-06
4.3.2 Setting and Connecting the Power Supply Unit
Before starting up your power supply unit, you must carry out certain steps
according to your requirements with respect to power supply behavior in the
event of a fault.
Power supply units are delivered in the following state:
S Fitted in the CC or EU frame which you ordered
S With preset jumpers
S AC line voltage set to 230 V (-3LC42, -3LF42)
If you wish to retain this setting, you can skip Steps 2 to 4 and 9.
If you do not wish to fit a filter subdrawer, skip step 8.
Step Action
1 Check the setting and cabling
2 Remove the power supply unit If required
3 Set the jumpers If required
4 Fit the power supply unit If required
5 Wire the power supply unit to the installation (including
fitting an isolating device to disconnect the AC line
voltage)
6 Fit the lithium battery
7 Remove the right-hand fan and connect the rechargeable
battery
8 Fit the filter subdrawer If required
9 Set the voltage selector switch If required
10 Switch the PSU on for the first time
Central Controllers and Expansion Units Power Suppl
y
Unit
s

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