1. Overview

In a single inverter system, the instrument is directly connected to the inverter. If your inverter has a built-in Revenue Grade Table (RGM; this inverter is called an Revenue Grade Inverter), you can connect an external instrument on the same bus as the RGM.

2 Instrument installation

The installation instructions should specify the national electrical code and ANSI/NFPA 70 wiring method used.

2.1 Installation Guide

The instrument is connected to the frequency converter through RS485.

AC wire specifications: 1.3 to 2.0 mm diameter/22-18 AWG stranded wire, 600 V, THHN, MTW or THWN type.

RS485 wiring specifications:

Cable type: at least 3-wire shielded twisted pair (4-wire cable can be used)

Wire cross-sectional area: 0.32-0.81 mm 2/24-18 AWG (can be used with Category 5 cables)

Note: If cables longer than 10 m/33 ft are used in areas with a risk of lightning induced voltage surges, it is recommended to use external surge protection devices. If grounded metal conduits are used to route communication lines, lightning protection devices are not required.

Instruments are considered as "permanently connected devices" that require disconnecting devices (circuit breakers, switches, or circuit breakers) and overcurrent protection (fuses or circuit breakers).

The instrument consumes 10-30mAh, therefore the rated value of any switch, circuit breaker, fuse, and/or circuit breaker is determined by the line gauge, power supply voltage, and required current interruption rating. Switches, circuit breakers, or circuit breakers must be located near the instrument and easy to operate. Use circuit breakers or fuses with a rated current of 20A or less. When monitoring multiple lines, use grouped circuit breakers.

Circuit breakers or fuses must protect power terminals labeled L1 and L2. In rare cases where there is overcurrent protection at the neutral point, the overcurrent protection device must simultaneously interrupt both the neutral point and the ungrounded conductor. The circuit protection/disconnection system must comply with all national and local electrical regulations.

2.2 Installation and Connection of Instruments

2.2.1 Installing Instruments

1. The instrument should be installed in the distribution box

2. Install the instrument on a 35mm German industrial standard guide rail.

2.2.2 Installing CTs:

Before closing the current transformer, turn off the AC power supply.

2. Install current transformers around the tested conductor. The split core current transformer can be installed three times around the conductor. can

Secure nylon zip ties around the CT to prevent accidental opening.

3. Install CT with arrows pointing towards the grid for consumption or outlet measurement.

The current transformer is packaged together with the electricity meter.

2.2.3 Connecting instruments:

If you want to connect the instrument to the frequency converter, please refer to the connection diagram below

remark

Clamp the CT connected to L1 CT to connect to? Surrounding the wires of L1.

Clamp the CT connected to L2 CT to connect to? Around the wires of L2.

1. Confirm that the power is turned off before connecting.

2. Thread the grounding cable through the appropriate conduit and open the circuit breaker, and connect it from the 5-pin terminal block to the grounding terminal

3. Use a 5-pin terminal block to connect the AC side wires (instrument input):

a、 Thread the wire through the appropriate conduit and open the knocker.

b、 Loosen the corresponding screws on the 5-pin terminal block.

c、 Connect each AC wire to the corresponding screw terminal (pins 1 and 2). Confirm that the lines match the symbols on the front label of the instrument panel.

d、 Connect ground to pin 5 and neutral to pin 3.

e、 Tighten the screws to ensure that the wires are fully inserted and not easily pulled out.

f、 Insert the 5-pin terminal block into the socket of the electricity meter, ensuring that it is fully secured in the meter.

4. Connect the CT wire to the 4-pin terminal block (block 1):

a、 Thread the wire through the appropriate conduit and open the knocker.

b、 Connect the blue and brown wires according to the dots printed on the label: blue to pin 1/3, brown to pin 2/4.

c、 Insert the 4-pin terminal block into the socket of the instrument panel, ensuring that it is fully secured in the instrument panel

5. Connect the RS485 twisted pair to the 4-pin terminal block o (terminal block 2):

a、 Thread the wire through the appropriate conduit and open the knocker.

b、 Connect the wires to terminals A+and b -, and connect the shield to terminal G.

c、 Insert the 4-pin terminal block into the socket of the instrument panel, ensuring that it is fully secured in the instrument panel

6. Place the terminal block of the wiring board back to the side of the instrument panel.

Note: If the instrument is used for a two-phase two-wire system (without a neutral point), please connect L2 at the 5-pin terminal block

And N line:

-Technical Specification for AE-D/200 Intelligent Photovoltaic Convergence Collection Module

-Product size of AE-D/200 intelligent photovoltaic convergence collection module