Maintenance and Replacement
8–9
1070 073 822-104 (02.06) GB
8.2.3 Replacing the battery pack
The rechargeable battery pack must be replaced in the following cases:
D The battery test has failed.
D The total number of charging cycles is above the value which depends on
the ambient temperature shown below (refer to the Shutdown Count op-
tion in UPS program, Sections 3.3.2 and 3.3.3).
D The red “USV” LED on the front panel is flashing for more than 8 hours
(refer to page 7–1).
Different prerequisites must be met by the IPC and IPC300 to start the
charge cycle. That is, whether or not the respective power supply is backed
by the rechargeable battery pack after Power-Off.
D IPC: Always after Power-Off
D IPC300: After Power-Off only if a controlled shutdown of still-active soft-
ware is required.
A harmful deep-discharge of the battery pack is prevented as long as the IPC
or IPC300 is not connected to mains power.
The number of charging cycles that the rechargeable battery pack can with-
stand and therefore its useful life, depends on the ambient temperature in
which the battery pack is used. Ambient temperature here is defined as the
one in which the operating terminal is situated, e.g. the temperature in the
control cabinet or in the operating housing.
The following table can be used as a guideline:
Ambient temperature Charging cycles Maintenance interval
+ 25 °C 4000 cycles 6 years
+ 35 °C 2000 cycles 3 years
+ 45 °C 1000 cycles 1.5 years
. The battery packs used in the IPC/IPC300 are recyclable, and can be
retunred to Bosch Rexroth upon replacement. They must not be dis-
posed of in standard residential refuse.
X19 Battery terminal
Battery connection terminal. The connection may be removed only for the
purpose of replacing the battery packs.
Terminal strip, 2-oin
Cable length: Max. 0.5 m
Cable type: Unscreened, min. cross-section 1.5 mm
2
X19
1
2
1
2
X19
Battery
+
GND
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