Metso D100789

Description

Technical Specifications:

• Product Model: D100789

• Manufacturer: Metso Automation (Valmet)

• Product Category: Power Unit Module IPU-2 / Intelligent Motor Protection Relay

• Weight: Approximately 0.64 kg

• Input Channels: Up to 8 input channels

• System Compatibility: Valmet DNA system

• Protection Functions: Thermal overload, phase unbalance, jam/locked rotor, underload, short circuit, earth fault

Functional Features:

• I²t thermal model protection replicating motor heating and cooling

• Accounts for both positive sequence (overload) and negative sequence (unbalance) currents

• Jam detection: activates if current remains above threshold after start timeout

• Underload protection: detects pump run-dry or broken coupling

• Phase failure and unbalance detection

• Earth fault detection for insulation failure

• Trip and pre-alarm outputs for proactive issue management

• Fault event storage with timestamps and measured values

• Local interface showing real-time current, thermal capacity, and status

• Communication port for PLC/DCS integration

• Remote reset capability

Performance Parameters:

• Input Channels: Up to 8

• Weight: 0.64 kg

• Protection Types: Thermal, phase unbalance, jam, underload, short circuit, earth fault

Material Composition:
Industrial-grade electronic components with modular design for high reliability in demanding industrial environments.

Structural Features:
The D100789 features a compact modular design for installation in control cabinets. The module is deployed in control cabinet main racks as part of the DNA system core control layer. The module serves as a data hub for the DCS network, processing local I/O and connecting to remote sites via bus or Ethernet.

Working Principle:
The IPU2 module monitors motor current through external current transformers (CTs). The core I²t thermal model continuously calculates motor thermal capacity based on positive and negative sequence currents. When fault conditions are detected (overload, unbalance, jam, underload, short circuit, earth fault), the module activates trip or alarm outputs. The module communicates real-time motor data to PLC/DCS systems and accepts remote reset commands. Fault events are stored with timestamps for troubleshooting.

Advantages and Strengths:

• Accurate I²t thermal protection accounting for both positive and negative sequence currents

• Comprehensive fault detection covering multiple failure modes

• Proactive pre-alarm outputs enable intervention before shutdown

• Fault logging with timestamps for effective troubleshooting

• Remote monitoring and control via PLC/DCS integration

• Modular design for easy installation and maintenance

• High reliability for critical industrial applications

Applicable Industries:

• Power generation (boiler feed pumps, ID/FD fans, cooling water pumps)

• Metallurgy and metals (roller table drives, pump motors in steel plants)

• Pulp and paper (refiners, pumps, conveyors, fan drives)

• Mining and minerals (crusher motors, slurry pumps, conveyor drives)

• Oil and gas

• Water and wastewater (large raw water and sewage pump motors)

• Intelligent manufacturing

Model Series:
Metso IPU Series (IPU1, IPU2, IPU3)/ Metso DNA System

Installation Requirements:

• Install in control cabinet main rack

• Connect to current transformers (CTs) for current measurement

• Connect to motor starters/contactors controlled by trip/alarm outputs

• Integrate with Metso/Valmet DNA or Neles ND9000 DCS systems

• Bus or Ethernet connection for remote site communication

Usage Precautions:

• External current transformers required for current measurement

• Proper integration with Metso/Valmet control systems required

• Regular monitoring of fault logs for preventive maintenance

• Ensure compatibility with IPU1 and IPU3 generations for system upgrades