B&R 500 Series, User Manual

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Maintenance / Servicing • Changing the battery
Chapter 6
Maintenance / Servicing
Power Panel 500 User's Manual V 1.00 223
2 Changing the battery
The lithium battery buffers the internal real-time clock (RTC) and the CMOS data.
Info:
• The product design allows the battery to be changed with the B&R device
switched either on or off. In some countries, safety regulations do not allow
batteries to be changed while the module is switched on.
• Any BIOS settings that have been made will remain when the battery is
changed with the power turned off (stored in non-volatile EEPROM). The date
and time must be reset later because this data is lost when the battery is
changed.
• The battery should only be changed by qualified personnel.
Warning!
Replace battery with Renata, type CR2477N only. Use of another battery may present
a risk of fire or explosion.
Battery may explode if mistreated. Do not recharge, disassemble or dispose of in fire.
The following replacement lithium batteries are available: 4A0006.00-000 (1 pc.) and
0AC201.91 (4 pcs.).
2.1 Battery status evaluation
The battery status is evaluated immediately following start-up of the device and is subsequently
checked by the system every 24 hours. The battery is subjected to a brief load (1 second)
during the measurement and then evaluated. The evaluated battery status is displayed in the
BIOS Setup pages (under Advanced - Baseboard monitor) and in the B&R Control Center (ADI
driver), but can also be read in a customer application via the ADI Library.
Battery status Meaning
N/A Hardware, i.e. firmware used is too old and does not support read.
GOOD Data buffering is guaranteed.
BAD Data buffering is guaranteed for approx. another 500 hours from the point in time that the battery capacity is
determined to be BAD (insufficient).
Table 148: Meaning of battery status
From the point when battery capacity is recognized as insufficient, data buffering is guaranteed
for approximately another 500 hours. When changing the battery, data is buffered for approx-
imately another 10 minutes by a gold leaf capacitor.
2.2 Procedure
• Disconnect the B&R industrial PC.