Description
ABB REM620E_F NBMNAANNABC1BNN1XF
I. Basic Information
Full Model: REM620E_F NBMNAANNABC1BNN1XF
Brand & Series: ABB Relion® 620 Series Intelligent Motor Protection & Control IED
Product Type: Integrated protection, control, measurement and monitoring device for industrial asynchronous motors
Origin: Sweden
Application Scope: Widely used in medium and low-voltage three-phase asynchronous motors such as fans, water pumps, compressors and conveyors in thermal power, chemical, metallurgy and water treatment industries, realizing full protection, automatic control, precision measurement and fault recording for motor circuits.
Hardware Architecture
1. High-speed Protection Operation Unit: Industrial dedicated power chip with millisecond-level fault judgment, built-in professional motor protection algorithm to accurately identify stall, overload, phase loss, unbalance and grounding faults.
2. High-precision Sampling & Metering Unit: Isolated three-phase voltage and current sampling circuit, 0.2/0.5 high-precision measurement level, realizing accurate calculation of power, power factor, frequency and electric energy.
3. Standard I/O Control Unit: Isolated digital input and relay output channels, supporting motor start-stop control, status signal acquisition and interlock logic output for industrial secondary control circuits.
4. Dual Ethernet Communication Unit: Dual Ethernet + RS485 interface, supporting IEC61850, Modbus and DNP3 protocols, realizing redundant network communication and stable remote data transmission.
5. HMI & Storage Unit: LCD Chinese display, programmable keys and status LEDs; large-capacity storage for event records, fault waveforms and multi-group setting groups.
6. Industrial Anti-interference Protection Unit: Complying with IEC EMC standards, with complete anti-surge, anti-static and anti-electromagnetic interference capabilities, adapting to harsh industrial environments.
Mounting Specifications
Power Supply: Universal AC/DC 110~240V wide-range adaptive power
Measurement Accuracy: Current 0.2 class, Voltage 0.5 class, Power/Energy 0.5 class
Protection Action Speed: Instantaneous overcurrent ≤50ms, Earth fault ≤60ms
Communication: Dual Ethernet + RS485
Mounting Type: Standard 4U embedded cabinet installation
Protection Class: Front panel IP54, body IP20
II. Technical Specifications
2.1 Electrical Parameters
Model: REM620E_F NBMNAANNABC1BNN1XF
Auxiliary Power: AC/DC 110~240V wide range
Rated Secondary Current: 1A/5A adaptive
Rated Secondary Voltage: 100V
Action Time: Instantaneous overcurrent ≤50ms, Earth fault ≤60ms
Protocols: IEC61850, Modbus TCP/RTU, DNP3
Withstand Voltage: 2kVAC/1min isolation
Protection Functions: Motor start timeout, stall protection, thermal overload, phase unbalance/phase loss, overcurrent, earth fault, over/undervoltage protection
2.2 Mechanical & Environmental Parameters
Mounting: 4U standard embedded installation
Operating Temperature: -25℃ ~ +55℃
Storage Temperature: -40℃ ~ +85℃
Humidity: 5%~95%RH, non-condensing
III. Key Features
1. Full-coverage Professional Motor Protection: Customized protection logic for asynchronous motors, covering all common faults during starting and running to avoid motor burnout and equipment shutdown accidents.
2. Integrated Precision Measurement & Metering: Integrates electrical parameter measurement and energy statistics, replacing traditional meters to realize refined energy management.
3. Local/Remote Dual-mode Control: Supports on-site manual operation and remote SCADA/DCS control with operation interlock and permission switching functions to prevent mis-operation.
4. Flexible Programmable Logic: Customizable interlock, delay and linkage logic to adapt to complex industrial automation process requirements without hardware modification.
5. Complete Fault Recording & Traceability: Automatic waveform recording during faults, accurate time stamping and action sequence recording for fault analysis and equipment maintenance guidance.
6. Dual-network Redundant Remote O&M: Dual Ethernet redundant communication ensures stable data transmission, supporting unattended remote monitoring and parameter management.
7. Self-diagnosis & Graded Alarm: Real-time self-inspection of device status with graded alarm prompts to prevent protection mis-operation and refusal.
IV. Working Principle
After power-on self-test and network time synchronization, the device collects real-time voltage and current analog signals through transformers, converts and calculates electrical parameters, and compares with preset protection settings. Under normal operating conditions, it uploads operating data and executes control commands. When motor faults such as overload, stall, phase loss and grounding occur, the device outputs trip commands within milliseconds, latches fault information and uploads alarms to isolate faulty equipment and ensure system safety. Real-time self-diagnosis ensures reliable operation of the protection device itself.
V. Application Scenarios
1. Protection and control of auxiliary motors in thermal power and hydropower plants.
2. Industrial pump, fan and compressor motor protection in chemical and petrochemical plants.
3. Heavy-duty equipment motor monitoring in metallurgy and mining industries.
4. Water treatment and HVAC system motor intelligent control.
5. Intelligent renovation of old distribution rooms to realize integrated motor circuit management.
