Advantech ASR-5300I Series, User Manual

Page: 94 / 122

ASR-5300I Series Hardware User Manual 84
5.5.1 BBU Fault Conditions and Precautions
If a BBU leaks, emits an unpleasant odor, generates heat, becomes discolored
or deformed, or in any way appears abnormal during use, recharging, or storage,
immediately remove it from the system and stop all use. A number of conditions that
might trigger BBU fault are listed below.
 The temperature sensor on the system charger circuit reports a temperature
that exceeds the pre-set threshold. The charger circuits will enter a
low-power and self-protection state.
 A BBU module has been charged for over 12 hours. A timer is embedded with
the charger. When this occurs, the charger will enter a timer fault state. Charg-
ing will resume automatically after the BBU module is removed/reinstalled or the
system reset.
Adhere to the precautions below when installing the BBU.
 Use the replacement BBU supplied by your distributor. Use of battery cells
otherwise provided will void your warranty.
 Dispose of used BBUs at authorized battery disposal sites only.
 Do not place a BBU near a heat source.
 Do not immerse a BBU in water or expose it to liquids.
 Do not disassemble or modify the BBU.
 Do not pierce with a sharp object, strike with a hammer, exert pressure on, or
throw the BBU.
5.5.2 Replacing the Battery Backup Unit
To replace the BBU, follow the steps outlined below.
1. Loosen the thumb screw (1).
2. Using the thumb screw as an anchor, gently pull out the BBU (2).
3. Install the replacement BBU module and fasten the thumb screw.
Note! A replacement BBU requires approximately 12 hours to charge to full
capacity.
The life expectancy of a BBU is three years.
If the cause of a failure cannot be determined even after a BBU module
is replaced, contact your system vendor.