B&R Automation PC 620, User Manual

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Maintenance / Servicing • Changing the battery
Automation PC 620 with 945GME N270 CPU board User's Manual V 1.10
1.1 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.
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
approximately another 10 minutes by a gold leaf capacitor.
1.2 Procedure
• Disconnect the power supply to the Automation PC 620 (also see information on page
493).
• Touch the housing or ground connection (not the power supply!) in order to discharge any
electrostatic charge from your body.
• Remove the black plastic cover from the battery compartment and carefully pull out the
battery using the removal strips.
• Insert the new battery with correct polarity. The battery should not be held by its edges.
Insulated tweezers may also be used for inserting the battery.
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 329: Meaning of battery status
Figure 242: Battery removal
Removal strip Cover