ABB LDMUI‑01 Module | Industrial I/O & Motor Protection

Product Description

The ABB LDMUI‑01 3AFE61320946P0001 is a versatile motor protection and analog input module designed for industrial automation systems. It accurately acquires analog signals such as temperature, pressure, and flow from field sensors, converting them into precise digital values for processing by PLCs or DCS controllers.

Beyond signal acquisition, the LDMUI‑01 integrates adaptive motor protection logic. It automatically adjusts protection thresholds depending on motor operating conditions such as startup, running, idle, or load. Moreover, seasonal adjustments allow higher overload thresholds during summer, reducing false trips while ensuring safe motor operation.

This module is engineered for demanding environments, offering high conversion accuracy (±0.2%) and fast response times (<20 ms), making it ideal for oil & gas, power generation, metallurgy, and cement industries. Therefore, it provides reliable monitoring and protection for large motors, fans, pumps, and industrial machinery.

Technical Specifications

• Model: LDMUI‑01

• Part Number: 3AFE61320946P0001

• Type: Motor Protection & Analog Input Module

• Signal Acquisition: Temperature, pressure, flow, voltage, current

• Conversion: High‑precision analog-to-digital

• Accuracy: ±0.2% typical

• Response Time: <20 ms

• Communication Protocols: Modbus RTU/TCP, PROFIBUS‑DP, IEC 61850, OPC UA

• Integration: Compatible with DCS, PLC, SCADA, MES, ERP systems

• Programming: Built-in Function Block Diagram (FBD) for custom logic

• Expansion Options: Supports additional I/O, temperature, and vibration input modules

• Protection Features: Overload, stall, phase imbalance, thermal protection

• EMC Compliance: IEC 61000‑4‑3, IEC 61000‑4‑6

• Environmental Design: Lead-free, RoHS-compliant

• Application Areas: Oil & gas pumps, power plant fans, metallurgy blowers, cement mill motors

FAQ

Q1: What types of signals can the LDMUI‑01 module acquire?
A1: It can acquire analog signals including temperature, pressure, flow, voltage, and current.

Q2: Which motor protection features are supported?
A2: Overload, stall, phase imbalance, and thermal protection are all supported.

Q3: What communication protocols are compatible?
A3: Modbus RTU/TCP, PROFIBUS‑DP, IEC 61850, and OPC UA are fully supported.

Q4: Can the module operate in harsh environments?
A4: Yes, it is rugged, lead-free, and RoHS compliant, designed for industrial conditions.

Q5: Which industries commonly use this module?
A5: Oil & gas, power generation, metallurgy, cement, and heavy industrial automation.