Acrel ADW400 LoRa wireless power meter

Electrical performance

Electrical performance

Working  environment conditions

Outline dimensions and installation instructions

Installing description

Installation mode of puncture clip

Installation notes:

1.During the installation of puncture clip, it should be avoided to break it by force;

2.After the installation of the puncture clamp, let the equipment side run full load for more than 1 hour, and measure the temperature of the cable at the installation point, which should not exceed 80℃.

wiring explain

The terminal is shown in the following figure,the current signal lines of A,B and C transformers are respective connected to IA(input),IA*(output);IB(input),IB*(output)and IC(input),IB(output);A, B and C three-phase voltage signal lines are respective connected to UA, UB and UC terminals ;N is connected to UN terminals.

Operation and Display

There are eight LED lights on the front of the front of the casing.They are:“DI1”,“DI2”,“DI3”,“DI4”,“UA”,“UB”,“UC”,“COM”.

When external switching input is available,“DI1”,“DI2”,“DI3”,“DI4”four lights on

 When there is an external voltage input,“UA”,“UB”,“UC”three lights on.

COM has indicator flashing, when the red light flickers, indicating that the instrument carries out "LORA" communication, when the green light flickers, indicating that the instrument carries out RS485 communication.

Communication protocol

The instrument adopts MODBUS-RTU protocol or DL/645 protocol. For specific protocol formats, please refer to the relevant protocol standards.

Troubleshooting of Common Faults

The instrument does not turn on after installation, or a voltage indicator does not turn on.

Instrument wireless communication failure

Please connect the instrument RS485 interface with USB to 485 serial port first, read the parameters in the table through communication, confirm whether the parameters in the table are the same as the wireless configuration of the upper main station (channel and spread spectrum factor). If different, please modify the wireless parameters of the instrument to be consistent with the main station before re-testing; if the same, it may be the instrument and the main station phase. If the distance is too far or the interference is serious, we can try to use the external sucker antenna, or consider adding a new wireless main station nearby, and then test it.