3 connecting the network cables, 4 connecting cables for analog setpoints, Connecting the network cables – SMA SC 500CP XT Installation User Manual

Page 32: Connecting cables for analog setpoints

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Procedure:

1. Disassemble the panels (see Section 7.2.1, page 40).

2. Insert the optical fibers in the inverter (see Section 7.1, page 40).

3. Remove the splice box from the top-hat rail:

4. Open the enclosure of the splice box.

5. Insert the optical fibers from below through the cable gland into the splice box.

6. Splice the optical fibers with the optical fiber pigtails in the splice box.

7. Plug the subscriber connectors into the SC-P plugs in the splice box.

8. Coil the residual glass fiber in the fiber reservoir. Observe the permissible bend radii.

9. Screw on the enclosure of the splice box.

10. Reinstall the splice box on the top-hat rail.

11. Attach the optical fibers to the cable support rail using a cable tie. This ensures that the optical fibers cannot be

pulled out inadvertently.

12. Mount the panels (see Section 7.2.1, page 40).

5.6.3

Connecting the Network Cables

Network cable requirements:

☐ The network cables must be shielded and pair-twisted.

☐ The network cables must be of at least category 5 (CAT 5).

☐ Maximum cable length: 100 m

Procedure:

1. Disassemble the panels (see Section 7.2.1, page 40).

2. Insert the network cables (see Section 7.1, page 40).

3. Insert the network cables into the network ports.

4. Attach the network cables to the cable support rail using a cable tie. This will prevent the network cables from

being pulled out inadvertently.

5. Mount the panels (see Section 7.2.1, page 40).

5.6.4

Connecting Cables for Analog Setpoints

If the setpoints for active power limitation and reactive power control are not transmitted via the network, there are
terminals in the inverter for connecting external setpoints. The inverter processes standard analog signals from 4.0 mA
to 20.0 mA.

Cable requirement:

☐ The cable used must be shielded.

Procedure:

1. Disassemble the panels (see Section 7.2.1, page 40).

2. Insert the cables (see Section 7.1, page 40).

3. Connect the cables in accordance with the circuit diagram (see Section 7.4, page 49).

4. Secure the cables on the cable support rail. This will prevent the cables from being pulled out inadvertently.

5. Mount the panels (see Section 7.2.1, page 40).

5 Installation

SMA Solar Technology AG

Operating Manual

SCCPXT-IA-E4-en-44

32

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