ARD2F Smart Motor Protector
ARD2F smart motor protectors can protect motors from many faults
during the motor running and display the running state clearly and
intuitively through LCD.The protector has RS485 remote
communication interface and DC4-20mA analog output, which is
convenient to form a network system together with control machines
like PLC and PC.
1. Measurement functions are divided into basic measurement
(current parameter) and co-selection measurement (voltage, power,
phase sequence, residual current (leakage current);
2. Start timeout, overload, stall, block, underload, phase failure,
unbalance, residual current (ground/leakage), temperature, external
fault, phase sequence, overvoltage, undervoltage, underpower,
overpower, tE time Motor comprehensive protection function;
3. 9-channels DI passive dry node input, signal power supply with
built-in DC24V power supply;
4. 5-channels DO output, which can meet the direct start,
star-delta start, autotransformer start, soft start and other
starting modes. Real-time remote control "start/stop" operation of
the remote master station can be realized through the communication
bus;
5. It has standard RS485 communication interface and adopts
Modbus-RTU and Profibus-DP communication protocol to ensure fast
and reliable communication of the host computer;
6. It has a DC4-20mA analog output interface and is directly
connected to the DCS system to monitor the field devices.
| Additional Features | Code | Additional Features | Code |
| Start control (including ‘K’) | Q | Leakage Protection | L |
| Switch input | K | 4~20mA analog output | M |
| Temperature protection | T | Loss of pressure (anti-shake) | SU(Including voltage and fault recording functions) |
| Alarm (programmable output) | J | SOE event record | SR |
| Communication Interface | Modbus-RTU | C | Voltage function (phase sequence, power, power factor) | U |
| 2 Modbus-RTU | 2C | tE time protection | tE |
