· Product Introduction

The SPE power signal data acquisition module is meticulously designed based on a new-generation embedded system. It features isolated communication interfaces, allowing it to communicate independently with a PC or PLC, or to be networked with multiple communication modules. Additionally, the module is equipped with a transient suppression circuit, which effectively suppresses various surge pulses and ensures reliable operation in harsh environments.

The SPE8-ME series energy parameter acquisition module includes three-phase AC current acquisition, three-phase AC voltage acquisition, and three-phase power acquisition. It is equipped with an RS485 communication interface and integrates six Delta-Sigma ADCs along with a high-precision energy metering core. With a resolution of up to 19 bits and a measurement accuracy better than 0.05%, the module ensures high performance. The power supply, inputs, and communication outputs are isolated from each other, making it suitable for various industrial applications and automation systems. It facilitates communication with host computers, enables rapid networking, and supports the construction of monitoring systems.

This product requires an independent power supply and is mounted on a standard 35mm DIN rail, offering simple on-site installation and flexible use, suitable for a variety of field applications.

· Basic Parameters

Power Supply DC12～36V(DC24V recommended)

Power Consumption ＜1.0W

Temperature Drift ≤200ppm/℃

Sampling Frequency ≤3Hz

Isolation Voltage 3000VDC

Power Protection Reverse connection voltage< -40V

Dielectric Strength 1500 VAC / 1 minute(Power, Input, Output)

Insulation Resistance 100MΩ (power, input, output)

EMC Compatibility Complies with GB/T18268.1 (IEC61326-1)

Applicable Field Devices Configuration software, PLCs, touch screens, computers, and other devices supporting the MODBUS-RTU protocol

· Input Terminal

Acquisition Channels 3 Channels

Input Signals Three-phase AC voltage <500V; Three-phase load current <500A

Input Range Input range parameters correspond to product naming

Input Frequency 45Hz to 65Hz

· Output Terminal

Output Signal RS-485 communication signal

Communication Protocol Standard MODBUS-RTU protocol

Communication Distance 1200m (typical)

Voltage Accuracy <0.05%F.S (+25℃)

Current Accuracy <0.05%F.S (+25℃)

Active Power Accuracy <0.05%F.S (+25℃)

Apparent Power Accuracy <0.05%F.S (+25℃)

Frequency Accuracy ±0.1Hz

· Environmental Conditions

Operating Temperature -40℃～+80℃

Storage Temperature -40℃～+85℃

Relative Humidity 10%～90%RH (non-condensing)

Atmospheric Pressure 80kPa～106kPa