PM3B is a monitoring unit for intelligent high-frequency switching power supply systems. It mainly collects and manages data and switch quantities in the system through the setting of module continuation address, and then transmits the results to the main monitor as the basis for the main monitor processing. Completes the statistics of system voltage and current data.
This document is the technical manual for the HuiYeda PM3B battery inspection unit. It describes the unit's function of monitoring battery cells, temperature, and current within a power system, transmitting data via RS485 to a main controller. The manual details the hardware structure, including 56 battery measurement channels and 2 temperature channels, along with safety precautions for installation and maintenance. This manual is written in Chinese.
| Input Rated Voltage | 220V |
|---|---|
| Voltage Measurement Accuracy | 0.5 % |
| Current Measurement Accuracy | 1 % |
| Temperature Measurement Accuracy | 2 % |
| Battery Measurement Channels | 56 |
| Current Measurement Channels | 1 |
| Temperature Measurement Channels | 2 |
| Communication Interface | Isolated RS485 |
| Operating Temperature | -10℃ -- 50℃ |
| Module Dimensions | 53(D)mm×215(W)mm×106 (H)mm |
The unit provides monitoring for up to 56 individual battery cells.
The physical layer uses RS485, and the application layer runs the MODBUS communication protocol.
The unit will automatically shut down and trigger an audible and visual alarm.
The unit supports two temperature measurement channels for monitoring battery surface or installation environment temperature.