ARD3M Series Smart Motor Protection Relay

Measure three-phasecurrent, overload,blocking, locking,overload, phase off,imbalance, PTCprotection, etc., Standard10D1/6DO programmable,2 channels Modbus-RTU.

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Overview

ARD3M intelligent motor protector (hereinafter referred to as protector) is suitable for low-voltage motor circuits with rated voltages up to 660V, integrating protection, measurement, control, communication, and operation and maintenance. Its complete protection functions ensure the safe operation of the motor, and it has logic programmable functions that can meet a variety of control methods. Different communication modules are optional to meet on-site communication needs. This product adopts a split structure, consisting of a main body, a display unit, a transformer and an optional communication module, and can be adapted to the installation of various cabinets.

■ Auxiliary power supply type is optional, AC220V power module supports power supply range AC85-265V/DC100-300V, AC380V
The power module supports power range AC/DC100-415V.
■ Support fundamental wave and full wave power parameter measurement (U, I, P, Q, S, PF, F, EP, EQ), voltage and current unevenness
Scale, positive sequence, negative sequence, zero sequence components of voltage and current, three-phase voltage phase angle, residual current, voltage and current 2-63 times
Fractional harmonic measurement, fractional harmonic content rate and total harmonic distortion rate.

Main Parameters

■ Protection functions include overload inverse time limit, overload definite time limit, grounding, starting timeout, leakage, underload, phase failure, and blockage
rotation, blocking, short circuit, overflow, unbalance (current, voltage), overpower, underpower, overvoltage, undervoltage, phase sequence, temperature
degree, tE time, external fault, number of starts limit, running time alarm, number of fault alarms.
■ 10 programmable DI inputs, built-in DC24V power supply by default, external active wet contacts can also be selected (see selection for details)
table).
■ 6 programmable DO outputs, meeting various starting methods such as direct starting, star-delta starting, autotransformer starting, etc.
method, the master station can realize the remote control "start/stop" of the motor through the communication bus.
■ Optional anti-shock function: Supports immediate restart after power shock and restart after voltage loss.

■ Standard 2-way MODBUS_RTU communication, provided by PROFIBUS DPV1, Ethernet, and PROFINET communication modules
Optional.
■ Optional 2-channel DC4-20mA analog output interface can be connected to the DCS system to monitor on-site equipment.
■ It has various event records such as fault records, starting records, parking records, DI displacement records and restart records, which can be checked
View multiple motor operation and maintenance information, and record 1-5 hours of motor operation at the same time.
■ The display interface supports Chinese/English LCD display.
■ Supports exporting waveform record and event record data from USB flash drive, and you can use EXCEL to open and export event record files.
■ When the color LCD display is optional, the WIFI function can be added. You can connect to the WIFI through a mobile phone or computer to view and set the motor protection settings.
Protector related data.