AMDG-X/F521 series electric motor protector is a digital electric motor protector developed and produced by Shenyang Xinwei Automation Co., Ltd. The product adopts DSP as the core, has digital setting, digital display, complete protection function, reliable protection performance, accurate parameter setting, detection, display voltage, general current transformer detection current and other characteristics.
The AMDG‑X/F521 series motor protector from Xinwei provides digital setting and display, DSP‑based protection functions and reliable performance for three‑phase AC motors. It supports protection against phase loss, short circuit, ground fault, jam, overload, current imbalance and under‑load, with six fault type outputs, a warning output and an alarm output.
The manual explains the LED display, keyboard operation, parameter configuration, fault codes, wiring connections and installation dimensions, enabling users to set up, operate and maintain the device safely. This manual is written in Chinese.
| Working voltage (AC) | 85 V – 265 V |
|---|---|
| Working voltage (DC) | 85 V – 265 V |
| Power consumption | < 2 W |
| Operating temperature range | -20 °C – 50 °C |
| Relay contact rating | AC 250 V/10 A (resistive), DC 30 V/10 A |
| DO/DI supply voltage | DC 24 V ± 10 % |
| DO drive capacity | max 100 mA per channel |
| Current transformer primary rating | 100 A – 800 A selectable |
Press the R key; this resets the microcontroller and stops the motor, clearing any fault state.
Use the M key to select parameter 1, then adjust the value with the ▲/► keys; the range is 20 %‑100 % of the current transformer primary rating.
Connect IA1‑IC2 to the current transformer secondary, L and N to the 220 V AC supply, O11/O12 to the relay coil, V1/V2 to the voltage sense, and DI1/DO1‑DO8 to the PLC I/O as shown in the wiring diagrams.