3BSE088765R1 ABB

3BSE088765R1    ABB    

The 40 and 50 series basic units provide an incorporated battery buffer in order to save the necessary information for the next startup should there be a power drop or cut.

The buffer battery is an usual in the trade Vanadium Lithium accumulator. It is soldered on a printed-circuit board inside the unit and qualified personnel can exchange it by themselves.

The accumulator is 100 % charged after 12 operating hours without interruption. Its lifetime is between 6 and 15 years; it depends on how often and how long the power supply of the unit is switched off.

The battery buffer time is 20 days at 25 °C. During that time data (e.g. flags) can be stored with power supply of the unit switched off.

The status word %IW 1062.15 (EW 62,15), Bit 3 gives information on the status of the battery (0 corresponds to error, 1 corresponds to OK).

Caution:

The following operating instructions are to be observed:

• Never short-circuit or operate battery with the polarities reversed! They are likely to overheat and explode. Avoid chance short circuiting and therefore do not store batteries in metal containers and do not place them on metallic surfaces. Escaping lithium is health hazard.

• Replace battery only with power supply on. Otherwise data may be lost.

• Dispose of battery environmentally consciously!

To save all or part of the data prior configuration of the basic unit is required (refer to volume 2 - System Technology). If the configuration of the basic unit is absent then all functions and internal data will be reset to 0 after power cut.

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