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Mounting and Commissioning
3.1 Mounting and Connections
•
a screwdriver with a 5 to 6 mm (0.20-0.24 in) wide blade,
•
a Philips screwdriver size 1,
•
a 5 mm (0.20 in) socket or nut driver.
In order to disassemble the device, first remove it from the substation installation. To do so, perform the steps
stated in Sections Panel Flush Mounting, Panel Surface Mounting or Cubicle Mounting in reverse order.
NOTE
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The following must absolutely be observed:
Disconnect the communication connections at the device bottom (ports A and B). If this is not observed,
the communication lines and/or the device might be destroyed.
NOTE
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To use the device, all terminal blocks must be plugged in.
!
CAUTION
Mind electrostatic discharges
Failure to observe these precautions can result in personal injury or material damage.
Any electrostatic discharges while working at the electronics block are to be avoided. We recommend
²
ESD protective equipment (grounding strap, conductive grounded shoes, ESD-suitable clothing, etc.).
Alternatively, an electrostatic charge is to be discharged by touching grounded metal parts.
NOTE
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In order to minimize the expenditure for reconnecting the device, remove the completely wired terminal
blocks from the device. To do so, open the elastic holders of the terminal blocks in pairs with a flat screw-
driver and remove the terminal blocks to the back. When reinstalling the device, insert the terminal blocks
back into the device like assembled terminals (Sections Panel Flush Mounting, Panel Surface Mounting or
Cubicle Mounting).
In order to install or exchange communication modules or to replace the fuse, proceed as follows:
Remove the two covers at the top and bottom. Thus, 1 housing screw each at the top and bottom becomes
accessible. First, only unscrew the bottom housing screw so far that its tip no longer looks out of the thread of
the mounting bracket (the housing screws are captive, they remain in the front cover even when unscrewed).
Unscrew all screws that fasten any existing communication modules in the module cover on the bottom side
of the device. Also unscrew the 4 countersunk screws that fasten the module cover on the bottom side of the
device. Carefully pull the entire module cover out of the device.
First fully unscrew the two housing screws in the top and bottom part of the covering cap and carefully pull
the entire electronic block out of the housing (see "Installation or replacement of a SIPROTEC 4 communica-
tion module" in the Section "Interface Modules").
NOTE
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If you have not removed the terminal blocks from the rear panel, much more force is required for removing
and reinstalling the electronics block, which might lead to the damaging of the device. Therefore, we abso-
lutely recommend to remove the terminal blocks before removing the electronics block.
210
SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018
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