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SUN2000-(50KTL, 60KTL, 65KTL)-M0 User Manual

This document describes the SUN2000-50KTL-M0, SUN2000-60KTL-M0 and SUN2000-65KTL-M0 in terms of its installation, electrical connections, commissioning, maintenance, and troubleshooting.
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Installing the RS485 Communications Cable

Installing the RS485 Communications Cable

Selecting an Installation Mode

An RS485 communications cable can be connected in two ways:
  • Terminal block connection

    Recommended: Communications cable with a conductor cross-sectional area of 1 mm2 and a cable outer diameter of 14–18 mm.

  • RJ45 network port connection

    Recommended: CAT 5E outdoor shielded network cable with an outer diameter less than 9 mm and internal resistance no greater than 1.5 ohms/10 m, with a shielded RJ45 connector.

    NOTE:
    Select only one installation mode in practice. Terminal block connection is recommended.

When laying out communications cables, separate them from power cables to avoid strong signal interference sources.

Terminal Block Connection

Terminal Block Port Definitions

Figure 5-23 shows an RS485 terminal block.

Figure 5-23 Terminal block
Table 5-3 Port definitions of the RS485 terminal block

No.

Port Definition

Description

1

RS485A IN

RS485A, differential signal+

2

RS485A OUT

RS485A, differential signal+

3

RS485B IN

RS485B, differential signal–

4

RS485B OUT

RS485B, differential signal–

Connecting Cables to the Terminal Block

  1. Remove an appropriate length of the jacket and core wire insulation layer from the communications cable using a wire stripper.

    Figure 5-24 Stripping an RS485 communications cable

  2. Route the communications cable through the cable gland.

    Figure 5-25 Routing a cable

  3. Remove the cable terminal base from the terminal block, and connect the communications cable to the terminal base.

    Figure 5-26 Connecting cables to a terminal base

    (1) RS485A IN

    (2) RS485A OUT

    (3) RS485B IN

    (4) RS485B OUT

  4. Land the cables in the terminal block, and bond the shield layer to the ground point.

    NOTE:

    When connecting the shielded cable, crimp the OT terminal if required.

    Figure 5-27 Connecting communications cables

  5. Bundle communications cables after connecting them.

    NOTE:

    Tie the communication cables with the cables on internal side of the maintenance compartment.

    Figure 5-28 Bundling communications cables

  6. Tighten the thread-lock sealing nut and seal the cable gland.

Connecting Cables to the RJ45 Network Port

RJ45 Connector Pin Definitions

Figure 5-29 shows an RJ45 connector.
Figure 5-29 RJ45 connector
Table 5-4 lists the RJ45 connector pin definitions.
Table 5-4 RJ45 connector pin definitions

Pin

Color

Function

1

White-and-orange

RS485A, differential signal+

2

Orange

RS485B, differential signal–

3

White-and-green

N/A

4

Blue

RS485A, differential signal+

5

White-and-blue

RS485B, differential signal–

6

Green

N/A

7

White-and-brown

N/A

8

Brown

N/A

Connecting Cables to the RJ45 Network Port

  1. Prepare an RJ45 connector.

    Figure 5-30 Preparing an RJ45 connector

    (1) White-and-orange

    (2) Orange

    (3) White-and-green

    (4) Blue

    (5) White-and-blue

    (6) Green

    (7) White-and-brown

    (8) Brown

  2. Route the communications cable through the cable gland.

    Figure 5-31 Routing a cable

  3. Insert the RJ45 connector into the RJ45 network port in the SUN2000 maintenance compartment.

    Figure 5-32 Connecting communications cables

  4. Bundle communications cables after connecting them.

    NOTE:

    Tie the communication cables with the cables on internal side of the maintenance compartment.

    Figure 5-33 Bundling communications cables

  5. Tighten the thread-lock sealing nut and seal the cable gland.
Updated: 2019-10-12

Document ID: EDOC1100016052

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