Firmware: V2.18 / V--
26.10.2022
83/119
9.4 Replacing the battery
The controller has a lithium buffer battery of the
type CR 2450 N, 3 V
. In order to change the battery, it is
necessary to remove the controller from the system. In this case, the system is
not
controlled and monitored!
1. Disconnect controller from the power supply. Acknowledge alarm in the higher level controller if necessary.
2. Disconnect all plug connectors, remove controller from the mounting.
3. Undo six screws of the side panel.
•
•
•
•
DANGER
Warning about dangerous electrical voltage! Danger of electric shock!
The safety regulations
and work safety instructions in the chapter Conventions must be observed for the battery
replacement.
A battery replacement may
only
be performed by trained personnel or at the factory by the
manufacturer! After opening, the device
must
be subjected to an
insulation test
!
All
plug connectors may only be inserted and removed when the
power supply is disconnected
.
Label connector if necessary before the removal and then detach.
Circuit boards may only be replaced when the
power supply is disconnected
. Always hold circuit
boards at the edge.
Observe ESD (Electrostatic Discharge) regulations!
After opening, the device
must
be subjected to an
insulation test
!
ATTENTION
Risk of false alarm!
The removal of the controller from the CAN bus generates an error message in
the higher level controller (
system centre / store computer / operator terminal
). Therefore, in addition to
the precautionary measures that directly concern the controller, consequences in the higher level
controllers / systems must also be taken into account.
Performing the battery replacement
DANGER
Warning about dangerous electrical voltage! Danger of electric shock!
A voltage of 230 V AC can
be present on some connectors.