GE IC694MDL940 UCN Modem Card, Industrial Control

Product Parameters

(Note: Parameters vary significantly between specific GE relay models, e.g., Multilin 239 vs. Multilin 869. The following are general ranges and common features.)

• Input Power Supply: Universal AC/DC, e.g., 24-250 VDC / 88-265 VAC.

• Current Inputs: Typically 1A or 5A nominal, connected via external Current Transformers (CTs).

• Voltage Inputs: Available on some models for voltage-based protection and metering (e.g., 69V to 480V, often with VTs).

• RTD Inputs: 3-10 configurable RTD inputs (e.g., Pt100, Ni120, Cu10).

• Digital Inputs: Multiple configurable digital inputs (e.g., for start commands, external trips, status inputs).

• Output Relays: Multiple configurable relay outputs (e.g., trip, alarm, auxiliary, service).

• Contact Type: Form A (NO), Form B (NC), or Form C (Changeover).

• Rated Voltage/Current: Varies by relay.

• Analog Outputs: 1-4 isolated analog outputs (e.g., 4-20mA), programmable for various measured values.

• Communication Ports:

• Serial: RS485 (Modbus RTU).

• Ethernet: RJ45 (Modbus TCP/IP, Ethernet/IP, PROFINET, IEC 61850).

• Display: LCD (e.g., 40-character backlit) or Graphical Color Display.

• Storage: Non-volatile memory for settings, event logs, and waveform records.

• Operating Temperature: Typically -40 °C to +70 °C (-40 °F to +158 °F).

• Humidity: 95% non-condensing.

• Degree of Protection: Typically IP5x for front panel, IP2x for terminals.

• Certifications: UL, CSA, CE, IEC, ATEX (for hazardous locations, if applicable).

Product Advantages

• Maximized Motor Uptime & Life: Comprehensive protection prevents costly damage and extends the operational life of valuable motor assets.

• Reduced Maintenance Costs: Advanced diagnostics and event recording facilitate rapid troubleshooting, minimizing downtime and maintenance efforts.

• Improved Process Reliability: Accurate and fast protection ensures that motors operate within safe limits, contributing to stable and reliable industrial processes.

• Energy Efficiency: Precise monitoring of motor parameters can help identify inefficiencies and optimize motor operation.

• Integration Flexibility: Multiple communication protocols (Modbus, Ethernet/IP, IEC 61850 etc.) allow seamless integration into existing and new automation systems.

• Enhanced Safety: Protects personnel by quickly isolating faulty equipment. Some relays offer integrated safety functions (e.g., Safe Torque Off - STO).

• Customization: Extensive programmable logic and multiple setpoint groups allow for highly tailored protection and control schemes.

• Remote Management: Remote access via communication interfaces enables monitoring, configuration, and troubleshooting from a central control room.

• Data-Driven Decision Making: Detailed operational data and fault records provide valuable insights for predictive maintenance and operational optimization.

Precautions

• Correct Relay Selection: Choose the relay model that precisely matches the motor's characteristics (power, voltage, current, starting method) and the application's protection requirements. Consider current transformer (CT) ratios.

• Proper Installation & Wiring: Adhere strictly to the manufacturer's installation manual. Ensure correct wiring of CTs, VTs (if used), RTDs, power supply, digital I/O, and communication cables. Incorrect wiring can lead to improper operation or damage.

• Grounding: Proper grounding of the relay is crucial for safety and accurate operation.

• CT/VT Considerations: Ensure CT secondaries are never open-circuited while primary current is flowing. Use appropriate voltage transformers (VTs) if high voltage inputs are required.

• Parameter Configuration: Carefully set all protection thresholds, time delays, and control logic based on motor nameplate data, motor characteristics, and application requirements. Incorrect settings can cause nuisance tripping or leave the motor unprotected.

• Environmental Conditions: Install the relay within its specified operating temperature, humidity, and vibration limits. If operating in harsh environments, ensure the relay has appropriate protection features (e.g., conformal coating).

• Firmware & Software: Use the recommended configuration software version and keep the relay firmware updated as advised by GE for optimal performance and new features.

• Safety Procedures: Always de-energize the motor and associated circuits before performing any installation, wiring, or maintenance on the relay. Follow all local and national electrical safety regulations.

• Cybersecurity (for networked relays): For relays with Ethernet communication, implement appropriate cybersecurity measures to protect against unauthorized access or tampering.

Product Applications

GE intelligent motor protection relays are essential in any industry relying on electric motors for critical processes.

• Heavy Industries:

• Mining: Protecting large conveyor motors, crushers, and pumps.

• Cement: Kiln drives, fan motors, and mill motors.

• Steel: Rolling mill motors, pump motors.

• Oil & Gas:

• Pumps (e.g., crude oil pumps, refinery pumps), compressors, and fan motors in refineries, pipelines, and offshore platforms.

• Power Generation:

• Auxiliary motors in power plants (e.g., boiler feed pumps, ID/FD fans, pulverizers, cooling tower fans).

• Water & Wastewater:

• Pumps, blowers, and mixers in municipal and industrial water treatment facilities.

• Pulp & Paper:

• Refiner motors, pulper motors, and fan motors.

• Chemical & Petrochemical:

• Process pump motors, agitators, and compressor motors in chemical plants.

• HVAC:

• Large fan motors and chiller compressor motors in commercial buildings and industrial complexes.

• Manufacturing:

• Any critical 3-phase AC motor application where advanced protection, monitoring, and control are required to ensure uptime and optimize performance.

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