Safety instructions
CX22B-R
A4722-1.0
HBM: public
7
Tip
When modules are installed in a vehicle, we recommend
connection to a separate battery or integration of an unin
terruptible power supply (UPS), as battery voltage is par
ticularly likely to fall below 10 V when a combustion
engine starts up, which would automatically cause the
modules to restart.
Maintenance, repair and modification
The modules are maintenance-free.
Only trained and qualified personnel who are authorized
to do so by HBM are allowed to open the module. Before
opening the module, disconnect all connections. Opera
tion when open is not allowed. Once the device has been
opened, it must be professionally inspected in accor
dance with EN 60950, before starting it up again.
The module is delivered from the factory with a fixed
hardware and software configuration. Changes can only
be made within the possibilities documented in the man
ual.
The module must not be modified from the design or
saftey engineering point of view except with our express
agreement. In particular, any repair or soldering work on
printed wiring boards (exchanging components) is prohib
ited. When exchanging complete subassemblies, use
only original parts from HBM.
Following modules contain a battery to buffer memory
content and guarantee an uninterruptible operation of the
time basis:
- CX22B-R: BR2330A/FAN (soldered)
- CX23-R: BR2477 (soldered)
