Loosen
the four screws and remove the cover. This doesn't have but can done devices equipped with MRAM.
The below delivery times are approximate.Page 259
Maintenance/Cleaning
17.
. For more in-
formation backing and restoring parameters, see Chapter 10. Battery replacement can also event-based.2.6
DANGER! Danger electric shock!
Injury death
When replacing the fuse, disconnect the device from all power supplies
(auxiliary voltage, control voltages). result repairs, for example, old devices
may need new CPU circuit board. The battery serves backup the auxiliary voltage fails. Please check the battery type the device.
To replace the battery, first remove the plastic protective cover the CPU board.3. This means that the battery does not have re-
placed regular intervals.
In general, the battery voltage monitored and alarm set off (status relay sta-
tus/operating LED) information (output function for weak battery) generated when the
battery shows low residual capacity.3 Replacing the battery
Three versions buffer battery are used the REG-DP Depending the version and
year manufacture the device, the batteries are used for different purposes (see case
descriptions this chapter). Once the battery has been changed, put the cover
back on.
Regardless the type battery, the parameters should saved quickly possible in
the event battery failure and always before the device disconnected from the supply
voltage. The battery not actively used long the device pow-
ered auxiliary voltage
