Battery Replacement - Festo FED-40 Manual

3 Installation
3.8

Battery Replacement

3-27
Some models have a lithium battery for data back-up.
The following data are saved by the battery:
– hardware real-time clock (date and time)
– event list
– recipe data
FED panels signal the battery status in more than one way:
– blinking of the LED indicator which has no marking top
left
– with the 'Battery' field in System Menu (BATTERY OK or
LOW)
– with the value of the S6 bit in the RDA
When the panel signals that the battery is low, you should
replace the battery as soon as possible.
Please note
Replacing the battery will cause the loss of the data
maintained by the battery.
To replace the battery, follow the procedure listed next page:
Festo FED-... en 1107g