2N LiftNet User Manual

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Contents

2N LiftNet User Manual Manual pdf 84 page image

Battery Maintenance 5.1845.1 Battery MaintenanceFirst put the accumulators in operation as described in the Description and Installationsection (PSTN Central Unit, Before You Start). Also, pay attention to them wheneverthe operation is interrupted and during replacement. The basic rules are as follows:Warning Never leave the batteries discharged for unnecessarily long periods. If the battery is fully discharged, please recharge it as soon as possible.Interruption of OperationThe interruption of service means that LN is without a power supply for a rather longtime. The battery is not being charged and can be damaged. This situation may occurin the following cases: In a building under construction or in an unused building where the powersupply may be turned off for weeks or even months; While replacing the CU; At the end of a testing, exhibition or similar event.In such cases, open the CU and remove the battery or disconnect it placing thetransport tape between the battery contact and the holder contact.List of Battery Endangering Situations1. CU installation in an unfinished new building.Remember that the power may be switched off for weeks or even months in abuilding that has not been put in operation yet. If necessary, install thecommunicator here, check its function and remember to protect the batteriesagainst depletion – remove them or disconnect using the transport tape. Onnew HW model is enough to switch the battery button into the position OFF. Ifthe risk is not so high, just disconnect the green connector. Both the steps,however, may only be performed when the elevators are out of operation.2. Excessively long storage periods.Make sure that your storage obeys the FIFO (first in first out) principle. If theend of the six-month storage period is approaching, you may recharge thebatteries in the product (see above), replace the transport tape and continuestoring the product. On new HW model, you have to switch the battery buttoninto the position ON for charging. When are batteries full charged, then switchthe battery button again into the position OFF.3. Dismantling CU.If, for whatever reason (warranty claim, transport to service site in order toupgrade, etc.), you dismantle the CU, remember that the CU is still “working”.This way it may be stored without recharging for no longer than 1 week, or,after having been fully recharged, no longer than 1 month. If there is a risk ofexceeding this period, remove the batteries or disconnect them using the