B&R 500 Series, Руководство пользователя

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Technical data • Entire device
36 Power Panel 500 User's Manual V 1.00
2.4.6 Battery
The lithium battery located behind the black cover (3 V, 950 mAh) buffers the internal real-time
clock (RTC) as well as the data in the SRAM of interface cards. The buffer duration of the
battery is at least TBD years (at 50°C, 8.5 μA current requirements of the supplied components
and a self discharge of 40%). The battery is subject to wear and should be replaced regularly
(at least following the specified lifespan).
Battery
Battery
Type
Removable
Service life
Renata 950 mAh
Yes, accessible from the outside
TBD years
1)
Accessories Short description
0AC201.91
Lithium batteries, 4 pcs.
Lithium batteries, 4 pcs., 3 V / 950 mAh, button
cell
4A0006.00-000 Lithium batteries, 1 pcs.
Lithium batteries, 1 pcs., 3 V / 950 mAh, button
cell
Battery
Battery
Table 12: Battery
1) At 50°C, 8.5 µA of the supplied components and a self discharge of 40%.
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 TBD) 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 13: 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.