This is a PMR 700 intelligent motor protector. It has the following features: powerful function, can protect the motor against overload, short circuit, undervoltage, overheating, leakage, etc. It also has fault record, time control, alarm output, etc.
The PMR 700 is a low‑voltage intelligent motor protection controller designed for asynchronous motors up to 380 VAC and 800 A. It provides comprehensive protection functions such as overload, short‑circuit, under‑/over‑voltage, and programmable relay outputs, and supports MODBUS and optional PROFIBUS communication.
The manual describes the hardware layout, wiring terminals, MR‑F operation panel functions, parameter configuration, communication setup, and common fault handling procedures. It also includes a parts list, software installation guide, and specifications for power supply, input ranges, and measurement accuracy. This manual is written in Chinese.
| Auxiliary Power Supply | 85‑265 VAC/DC |
|---|---|
| Voltage Input | 0‑380 V |
| Current Input Range | 1‑800 A (CT output built‑in) |
| Current Transformer Aperture | 1‑25 A, 10 mm |
| Current Input (example range) | 50‑100 A, 20 mm |
| Leakage Current Input Range | 0‑298 mV AC (0‑500 mA equivalent) |
| Communication Interfaces | Up to two RS485 ports, optional PROFIBUS‑DP |
| Power Consumption | < 8 VA |
| Operating Temperature Range | -20 °C to 60 °C |
It uses standard MODBUS over RS485 and offers an optional PROFIBUS‑DP interface.