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ACREL Smart Motor Protection Controller - RS485 Modbus

ACREL Smart Motor Protection Controller - RS485 Modbus

SKU: ARD2
From AU$427.00Sale Price
Excluding Sales Tax
ACREL Smart Motor Protection Controller - RS485 Modbus is designed to monitor and protect electric motors against common operating faults including overload, timeout start-up, blocking, short circuit, underload, phase failure and phase unbalance. It is suitable for motors with rated working voltages of AC380V or AC660V and supports motor current settings across a wide range using compatible current transformers. Optional functions include leakage protection, RS485 communication and analogue output.
 
Options:
CodeAdditional Features
CRS485(Modbus-RTU)
L1Leakage Protection ?100A KB1:5A/5mA ? 46mm
L2Leakage Protection 100A-250A KB2:5A/5mA ? 81mm
L3Leakage Protection 250A-800A KB3:5A/5mA ? 150mm
M4-20mA analog output
K2 switch input 1 relay output (programmable 3)
SRSOE record
JAlarm (programmable 2)
 
Requiring additional option? Please click the link below.
Additional Options

The ACREL Smart Motor Protection Controller - RS485 Modbus is an intelligent motor protection device for monitoring motor current and detecting a range of abnormal operating conditions. It is designed for motors with rated working voltages of AC380V or AC660V at 50 Hz or 60 Hz.

The ACREL Smart Motor Protection Controller - RS485 Modbus can protect against conditions including overload, timeout start-up, blocking, short circuit, underload, phase failure, phase unbalance, earth leakage and external faults, depending on the configured functions and model arrangement. Its SOE event recorder provides a record of fault events to assist maintenance personnel when investigating motor problems.

How it works

  • The controller monitors the motor circuit through current transformers and evaluates the measured current against configured protection settings.
  • When an abnormal condition is detected, the protection function operates the relevant relay output to provide a control signal for the motor circuit.
  • The relay can be used with a motor contactor so that the motor can be disconnected when a protection condition occurs.
  • The controller includes an adjustable delay function to help distinguish normal motor starting current from a sustained abnormal condition.
  • RS485 communication with Modbus is available for remote monitoring, while the optional DC 4-20 mA analogue output can provide a proportional signal to an external control or monitoring system.

Why choose this product?

  • Provides several motor protection functions within a single controller rather than relying solely on basic overload protection.
  • Supports motors rated at AC380V or AC660V.
  • Wide motor current coverage is available through the specified current transformer options.
  • Four relay outputs provide flexibility for motor control and alarm functions.
  • RS485 Modbus communication makes the ARD2 suitable for integration with PLC and PC-based monitoring systems.
  • The SOE event recorder can assist with identifying the sequence and cause of motor protection events.

Benefits

The ACREL Smart Motor Protection Controller - RS485 Modbus can help reduce the risk of continued motor operation under abnormal electrical conditions and provide maintenance personnel with useful information when faults occur.

Its communication capability also allows motor protection information to be incorporated into a wider industrial monitoring system rather than being limited to local indication.

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