Reassembly; Mounting; Panel Flush Mounting - Siemens SIPROTEC 4 7VK61 Manual

[externe-terminierung-020313-kn, 1, en_GB]
Figure 3-15
3.1.2.5

Reassembly

The device is assembled in the following steps:
•
Carefully insert the boards into the case. The mounting locations are shown in Figures
Figure 3-4. For the model of the device designed for surface mounting, use the metal lever to insert the
processor board C-CPU-2. Installation is easier with the lever.
•
First plug in the plug connectors of the ribbon cable onto the input/output board I/O and then onto the
processor board C-CPU-2. Be careful that no connector pins are bent! Do not apply force!
•
Connect the plug connectors of the ribbon cable between processor board C-CPU-2 and the front panel to
the front panel plug connector.
•
Press plug connector interlocks together.
•
Put on the front cover and screw it onto the housing.
•
Put the covers back on.
•
Re-fasten the interfaces on the rear of the device housing. This activity is not necessary if the device is
designed for surface mounting.

Mounting

3.1.3
3.1.3.1

Panel Flush Mounting

•
Remove the 4 covers at the corners of the front cover. Thus, 4 elongated holes in the mounting bracket
are revealed and can be accessed.
•
Insert the device into the panel cut out and fasten it with 4 screws. For dimensions refer to section
4.10 Dimensions.
•
Put the 4 covers back into place.
•
Connect a solid low-impedance protective earthing at the rear of the device with at least one M4 screw.
The cross-section of the earth wire must be equal to the cross-section of any other control conductor
connected to the device. The cross-section of the earth wire must be at least 2.5 mm
•
Connections are realized via the plug terminals or screw terminals on the rear side of the device
according to the circuit diagram.
When using screwed connections with forked lugs or direct connection, before inserting wires the screws
must be tightened so that the screw heads are flush with the outer edge of the connection block.
A ring lug must be centred in the connection chamber, in such a way that the screw thread fits in the
hole of the lug.
The SIPROTEC 4 System Description has pertinent information regarding wire size, lugs, bending radii,
etc. Installation notes are also given in the brief reference booklet attached to the device.
SIPROTEC 4, 7VK61, Manual
C53000-G1176-C159-5, Edition 05.2018
Termination of the RS485 Interface (External)
Mounting and Commissioning
3.1 Mounting and Connections
Figure 3-3 and
2 .
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