ABB AC 800F Mounting And Installation Instructions Manual page 221

6
When the AC 800F is off, removing the battery holder when no module
with a buffer battery resides in the other E slot will cause a data loss.
The data in the main memory and the configuration of the real-time
clock will be lost then.
Replacing the buffer battery
• Remove the battery holder:
take the two small faces of the
holder and pull it out.
• If the 10Base2 module is on
(State LED is lighted), the Batt
low LED will light up yellow.
• Open
the
slightly press your fingers on
the upper and lower edge of
the holder.
• Replace battery SB 808F
• Observe the battery polarity
• Assemble the battery holder
• When inserting the battery
holder make sure the contact
pins are on the left hand side.
• Insert the battery holder into
the slot on the module front
panel and press it in until it
snaps in.
• Make sure that the battery
holder is not canted.
Functional Description of the Ethernet Modules
battery holder:
6-9