Rechargeable Battery Pack; Fig. 8-2: Number Of Charging Cycles - Bosch Rexroth BTV 16 Project Planning Manual

8-4
Maintenance and Installation
8.4

Rechargeable Battery Pack

External Battery
Risk of data loss in the RAM during battery
exchange!
⇒ Before replacing the battery back up important data,
because
CAUTION!
breakdown might occur. Data in the RAM might be
lost.
The battery pack must be replaced in the following cases:
• The battery test fails during system startup.
• The number of charging cycles exceeds the value depending on the
ambient temperature and specified in the table below.
• The red LED "UPS" on the front panel flashes for longer than 8 hours.
A charging cycle is determined by switching the PC power supply unit on
and off. As long as the operator terminal is connected to the supply
system, a total discharge of the battery pack is avoided.
The number of charging cycles of the battery pack and thus, its service
life is dependent on the ambient temperature, in which the battery pack is
used. Ambient temperature is defined as the temperature, in which the
operator terminal or the battery pack is situated, e.g. the internal
temperature of the control cabinet or in an operator panel housing.
The following table can be used as guideline:
Ambient temperature
+25 °C
+35 °C
+45 °C
Fig. 8-2: Number of charging cycles
Note: The used batteries are recyclable and can be returned to
Bosch Rexroth after replacement. They must not be disposed
in the standard household refuse.
For the BTV 16.1 and the BTC 40.1 an external battery pack for cabinet
mounting is available.
To connect the external batteries proceed as follows:
1. Fix the battery pack in the control cabinet.
2. Switch off the supply voltage for the operator terminal. If required,
unplug all connectors from the operator terminal.
3. Connect the 2-pin battery cable to connection X19 of the operator
terminal. The original cable is reverse voltage protected.
during battery
Charging cycles
4000 cycles
2000 cycles
1000 cycles
DOK-SUPPL*-BTV16/40***-PR02-EN-P
BTV 16/40
exchange a voltage
Maintenance interval
6 years
3 years
1.5 years