General
ARD series intelligent motor protector (hereinafter referred to as protector) can perform various conditions such as start timeout, overload, phase failure, unbalance, underload, ground/leakage, blockage, short circuit and external fault during motor operation. Protection, and SOE fault event recording function, convenient for on-site maintenance personnel to find the cause of the fault. Suitable for coal, petrochemical, smelting, electric power, ships, and civil construction. The protector has RS485 remote communication interface, DC 4 ~ 20mA analog output, and PLC, PC and other control machines form a network system. Remote monitoring of motor operation.
Features
● Measurement functions are divided into basic measurement (current parameter) and co-selection measurement (voltage, power, phase sequence, residual current (leakage current);
● 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;
● 9-channels DI passive dry node input, signal power supply with built-in DC24V power supply;
● 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;
● 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;
● It has a DC4-20mA analog output interface and is directly connected to the DCS system to monitor the field devices.
Technical Parameters
| Technical data of motor protector ARD2F-25 |
| Auxiliary power supply of protector | AC85V~265V/DC100V~350V, power consumption ≤7VA |
| Rated working voltage of motor | AC380V/AC660V, 50H/60Hz |
| Rated working current of motor | 1A(0.1 ~9999) | Small specific current transformer |
| | 5A(0.1 ~9999) | |
| | 1.6A(0.4A—1.6A) | |
| | 6.3A(1.6A~6.3A) | |
| | 25A(6.3A~25A) | |
| | 100A(25A~100A) | |
| | 250A(63A-250A) | Specific current transformer |
| | 800A(250A~800A) | |
| Relay output contactor, rated load capacity | 4-way,AC250V, 3A, DC30V, 3A |
| Switching input | 2-way, optical isolation |
| Communication | RS485 Modbus |
| Volume of SOE event recorder | 8 events |
| Environment | Working temperature | -10℃-55℃ |
| | Storage temperature | -20℃-65℃ |
| | Relative humidity | 5%-95%, no dew |
| | Altitude | ≤2000m |
| Class of pollution | 2 |
| Protection level | IP20 |
| Rated current of motor protector(A) | current ratio setting | Transformer primary side turns | Setting current Is range(A) | Motor Power(kW) |
| 1 | able to set | 5 | 0.1~9999 | 0.12~440 |
| 5 | | 1 | 0.1~9999 | 0.12~440 |
| 1.6 | unable to set | 1 | 0.4~1.6 | 0.12~0.55 |
| 6.3 | | 1 | 1.6~6.3 | 0.75~2.2 |
| 25 | | 1 | 6.3~25 | 3~11 |
| 100 | | 1 | 25~100 | 15~45 |
| 250 | | 1 | 63~250 | 55~132 |
| 800 | | 1 | 250~800 | 160~440 |
Function
Wiring
Typical connection
Product Tags:
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ISO RS485 communication Smart Motor Protector / Motor Protection Device Images
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