Routine Checks and Maintenance
9-5
7SJ63 Manual
C53000-G1140-C120-1
o
Wear a grounded wrist strap or touch grounded metal to prevent electrostatic dis-
charges to the internal components of the device.
o
Remove the covers on the front panel and loosen the screws that are securing the
front panel.
o
Carefully pull off the front panel. The front panel is connected to the internal CPU print-
ed circuit board with a short ribbon-cable.
o
At one end, disconnect the ribbon-cable between the front panel and the CPU board.
To disconnect the cable, push up on the top latch of the plug connector and push down
on the bottom latch of the plug connector. Carefully set aside the front panel.
o
The battery is located on the bottom-front side of the CPU (
¯
) board. See Figure 9-1.
Figure 9-1
Front View without Front Panel
–
Position of Buffer Battery (simplified and re-
duced)
Caution!
Electrostatic discharges through the connections of the components, wiring, and con-
nectors must be avoided. Wearing a grounded wrist strap is preferred; otherwise,
touch a grounded metal part before handling the internal components.
Warning!
Hazardous voltages can exist in the device, even after disconnecting the power supply
or withdrawing the boards! Capacitors can be charged.
¯
Processor Board CPU
°
Input/Output Board I/O
¯
Slot 5
Slot 19
G1
+
–
°
Battery
Battery Grip
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Содержание siprotec 7SJ63
Страница 16: ...xiv 7SJ63 Instruction Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 28: ...Introduction 1 12 7SJ63 Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 112: ...SIPROTEC 4 Devices 4 38 7SJ63 Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 346: ...Functions 6 182 7SJ63 Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 494: ...Technical Data 10 48 7SJ63 Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...
Страница 604: ...Index Index 6 7SJ63 Instruction Manual C53000 G1140 C120 1 w w w E l e c t r i c a l P a r t M a n u a l s c o m ...