Application

The motor is an important asset of the enterprise. It is necessary to monitor the running status and the efficiency of the motor and protect the motor. ARD series smart motor protector is used for 660V low-voltage motor circuits with protection, measurement, control, communication, operation and maintenance function, can realize multiple starting schemes to ensure the safe operation of the motor. It can be connected to the intelligent MCC or DCS production system. It is widely used in Chemical Industry、Power Plant、Pump Station、Mining Industry、Metallurgical Industry and so on.

Structure

Main Functions

1）Protection function

Start timeoutExternal FaultUnderPower
OverloadInsulation FaulttE time
UnderloadOverVoltageLoss of pressure (anti-shake)
Short circuitUndervoltage4-20mA input protection
BlockingPhase FailureGround
Stall PhaseSequenceLeakage
UnbalanceOverPower

2）Communication

Modbsu-RTU; Modbus-TCP; Profibus-DP; Profinet

Human Machine Interface

Product Selection

ARD2 Smart Motor Protector
  • Suitable for motors with rated voltage of AC380V/660V;
  • Optional leakage protection, RS485 communication, analog output, etc.
  • 2 channels DI passive dry node input, signal power supply with built-in DC24V power supply;
  • 4 channels DO output
ARD2F Smart Motor Protector
  • Basic parameters and optional measurement (voltage, power, phase sequence, leakage current);
  • Start timeout, overload, stall, block, underload, phase failure, unbalance, residual current (ground/leakage), temperature, external fault, phase sequence,  under/overvoltage, under/overpower, etc.
  • Standard RS485 Modbus-RTU and Profibus-DP communication protocol.