ARD2F Series Smart Motor Protection Relay
Overview
ARD2F 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.
■Support fundamental wave and full wave power parameter measurement (U, I, P, Q, S, PF, F, EP, EQ), current and current unevenness
Scale, current positive sequence, negative sequence, zero sequence component, voltage, three-phase voltage phase angle, residual current.
■ Protection functions include overload inverse time limit, overload definite time limit, grounding, starting timeout, leakage, underload, phase failure, blocked rotor,
Blockage, short circuit, overflow, unbalance (current, voltage), overpower, underpower, overvoltage, undervoltage, phase sequence, temperature, tE
Time, external fault, number of starts limit, running time alarm, number of fault alarms.
Main Parameters
■ 9 programmable DI inputs, built-in DC24V power supply by default, external active wet contacts can also be selected.
■ 5 channels of programmable DO output, meeting direct starting, star-delta starting, autotransformer starting, and other starting methods. The master station can realize 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.
■ Optional MODBUS_RTU communication and PROFIBUS DP communication, supporting up to 2 communication interfaces.
■ Optional 1-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 record, starting record, parking record, DI displacement record and restart record.
■ LCD display interface, supports Chinese/English switching.
Wiring Diagram
Typical Connection
Live Application Pictures
Application
