Maintenance
8.2 Changing the battery
Warning!
The battery compartment is only permitted to be replaced by B&R battery compartment
5ACCRHMI.0018-000. The battery is permanently installed and cannot be replaced. The entire battery
compartment must always be replaced.
The use of any other battery may present a risk of fire or explosion.
The battery can explode if handled improperly. Do not recharge, disassemble or dispose of the battery
in fire.
Information:
The self-discharge time when changing the battery is approx. 2 minutes.
The lithium battery ensures the retention of the internal real-time clock (RTC) and CMOS data.
Note the following when changing the battery:
•
The product design allows the battery to be changed when the PLC is in a voltage-free state as well as
when the B&R device is switched on. In some countries, changing under operating voltage is not permitted,
however; local regulations must be observed!
•
The battery is only permitted to be changed by qualified personnel.
•
When changing the battery in a voltage-free state, any BIOS settings made are retained (stored in volt-
age-safe EEPROM). The date and time must be set again since this data is lost during the change.
Required tools
•
Flat-blade screwdriver
Procedure
1. Disconnect the power supply cable to the B&R industrial PC (disconnect the power cable).
2. Carry out electrostatic discharge on the housing or at the ground connection.
3. Carefully open the tab of the battery holder with a flat-blade screwdriver (1) and fully straighten the tab until
it forms a 90° angle with the device (2).
4. Pull the battery holder out of the device by the tab (3).
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Panel PC 1200 panel mount device User's manual V1.08
