DDSU666-H Smart Power Sensor

Description

Huawei DDSU666-H Smart Power Sensor

DDSU666-H Smart Power Sensor (hereinafter referred to as the " Sensor ") is specially designed for the distributed photovoltaic system, to be a new Smart power sensor, combined with measurement and communication, mainly applied into the measurement for electrical quantity including voltage, current, power ,frequency, power factor, active energy etc. in the electrical circuit.

It can realize networking with the external device through RS485 communication interface. Adopting the standard DIN35mm din rail mounting, structural module design, it is characterized with small volume, easy installation and networking, etc.

The Sensor can convert the voltage and current signal to be the signal that can be identified by MCU through the sampling circuit, MCU will calculate and convert it into energy, power, power factor and other electrical quantity by calculating the signals in the sampling circuit, transferring to users through communication and meanwhile save the data in the storage circuit.

Functions

• Metering function:

Accurately metering the positive/ reverse active energy and combined active energy, no storage data loss for the sensor after power interruption.

• Measurement function of electrical parameters

The sensor can accurately measure electrical parameters including power, voltage, current, frequency, power factor, etc.

• Display function

  The instrument adopts field LCD design, characterized with display function for electrical parameters and energy data. Please see LCD display in figure 2-3.

  The display bit of energy measurement value can be six bits, with display range from 0 to 999999 kWh.

• Parameter setting function

  The sensor can set the communication address and baud rate through buttons.

  Setting method please see figure 2-4: Long press the button 3s, the sensor will automatically enter into the communication address setting interface, with cyclic display for setting display interface of baud rate and communication address. Please press the button when required for baud rate or communication address settings, it will exit to communication address and baud rate settings without button operation for twenty seconds.

• Communication function

  The sensor is equipped with one RS485 communication interface, with baud rate changed among 4800bps and 9600bps. The default baud rate is 9600bps with check bit and stop bit to be n.1, communication address (see factory number or LCD display), support ModBus—RTU protocol.