Siemens Servo Screen 390 Service Manual page 34

4. Service procedures
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2
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4
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34
Replacing the battery
When the information "Replace Servo
Screen 390 battery" is displayed in the
Message window, the battery must be
replaced.
• Make sure that the Servo Screen 390 is
turned off.
• Loosen the two screws (1).
• Carefully lift off the battery cover including
battery (2), but do not remove the cable
connector (3) from PC 1662/PC 1835.
Note – Computer setup information stored
in the CMOS-RAM, and for PC 1662 also
information stored in the SRAM, will be
erased if the connector is removed. In that
case, factory default settings will be used
next time the Servo Screen 390 is turned
on.
• There are two equal battery connectors
connected in parallell (P13 and P14) on
PC 1662/PC 1835. Connect the new
battery (4) to the unused connector. The
battery backup functions are now secured
by the new battery.
• Cut the cable tie holding the old battery to
the battery cover. Mount the battery cover
to the new battery using a new cable tie.
• Disconnect and remove the old battery.
• Mount the battery cover including battery
on Servo Screen 390.
The old battery must be disposed of
according to local or national regulations.
Battery replacement must be confirmed in
the S
ERVICE
software. This is described in the section
"Using the Service Menu" in this chapter.
The battery is now replaced. Perform a
Functional check according to the
instructions in the Operating Manual.
Siemens-Elema AB
Servo Screen 390
M within the application
ENU
E382 E394E 061 01 02 02