Routine Checks and Maintenance
9-6
7SA6 Manual
C53000-G1176-C156-2
o
Connect the ribbon-cable between the CPU (
Ê
) board and the front panel. Be espe-
cially careful not to bend any of the connector pins! Do not use force! Be sure that the
plug connectors latch.
o
Carefully replace the front panel being mindful of the ribbon-cable. Fasten the panel
to the case with the screws.
o
Replace the covers.
o
Close the protective switches to apply voltage to the power supply.
o
After the device is operating, data saved in DIGSI
®
4 can be loaded back into the de-
vice.
If the internal system clock is not automatically synchronized via a serial interface,
then the clock should be set at this point. Refer to Subsection 7.2.1 if assistance is
needed to set the clock.
9.3.1.2
Battery Change on Devices with Mounting Housing with Detached Operator Panel
The battery is located at the front edge of the CPU printed circuit board. If a battery
change is required, the battery must not be replaced by a new one.
The snap connection G2 in the front cover of the operator panel enables the user to
fix the battery properly.
To replace the battery:
o
Read out the device annunciations. Usually this is done with a PC via the operator in-
terface using DIGSI
®
4. The records and data are lost when the battery is removed.
Therefore the information in the PC is saved.
Note:
All protective and control settings, including the input/output configuration and
the CFC logic. The settings are saved independently from the battery. No settings will
get lost when the battery is removed. No settings will be affected if the device operates
without a battery.
o
Have the replacement battery ready.
o
Remove the covers at the front panel of the operator control element.
o
Loosen the screws that are securing the front panel.
Warning!
The used battery contains Lithium. Do not throw the battery into the trash! It must be
disposed off in line with the applicable regulations!
Do not reverse the polarity! Do not completely discharge! Do not throw the bat-
tery into a fire! Explosion hazard!
Caution!
Do not short the battery! Do not reverse the polarity of the battery! Do not lay the bat-
tery on the ground mat used to protect components from electrostatic discharges! Do
not recharge the battery!
Summary of Contents for siprotec 7SA6
Page 2: ...Siemens Aktiengesellschaft Book No C53000 G1176 C156 2 ...
Page 18: ...xviii 7SA6 Manual C53000 G1176 C156 2 ...
Page 32: ...Introduction 1 14 7SA6 Manual C53000 G1176 C156 2 ...
Page 82: ...Hardware and Connections 2 50 7SA6 Manual C53000 G1176 C156 2 ...
Page 119: ...SIPROTEC 4 Devices 4 25 7SA6 Manual C53000 G1176 C156 2 Figure 4 20 CFC Logic example ...
Page 190: ...Configuration 5 62 7SA6 Manual C53000 G1176 C156 2 ...
Page 652: ...Installation and Commissioning 8 78 7SA6 Manual C53000 G1176 C156 2 ...
Page 724: ...Technical Data 10 56 7SA6 Manual C53000 G1176 C156 ...
Page 800: ...Appendix A 76 7SA6 Manual C53000 G1176 C156 2 ...
Page 866: ...Appendix B 66 7SA6 Manual C53000 G1176 C156 2 ...