Siemens S5-135U/155U appendix Battery Compartment B Cover a

Central Controllers and Expansion Units Power Supply Units

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Battery Compartment (B)

Cover (A)

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Starting Up without a Lithium Battery

Supplying an

External Backup

Voltage

Warning

Risk of danger to persons and property, danger of giving off harmful substances.

If handled incorrectly, a lithium battery can explode. If disposed of incorrectly, old lithium batteries can release harmful substances. You must therefore observe the following guidelines:

SDo not throw new or discharged batteries onto a fire and do not solder onto the body of the cell (max. temperature 100 °C (212 5F)). Do not

recharge them. Order your replacement battery from Siemens only (for order number see ordering instructions). This ensures that you only use a short-circuit-protected type.

SThe lithium battery is subject to regulations for hazardous materials. You should observe these regulations when you ship the battery, for example, by using the original packaging.

Used batteries should be returned to the manufacturer or a recycling station if possible or disposed of as hazardous waste. The guidelines for transporting hazardous materials should be observed.

If you want to start up one of the central controllers or expansion units without a battery, you can do either of the following:

SYou can connect only the rechargeable battery, or

SYou can supply an external backup voltage.

Apply a backup voltage of 4.5 V DC via the input sockets labelled ªExt.Batt. DC 4.5 V.º The input sockets are situated on the front panel of the power supply. Ensure that you have the correct polarity.

4-32	System Manual
	C79000-G8576-C199-06