Description
Product Overview
The ABB MC91 HESG440588R4 HESG112714/B is a high-performance motor control unit (MCU) designed for industrial applications requiring precise control and protection of electric motors. As a core component of ABB’s drive and automation portfolio, this module belongs to the advanced MC series, engineered to deliver reliable operation in demanding environments such as manufacturing, energy, and process industries. The MC91 serves as a intelligent interface between the motor, control system, and operator, integrating functions like speed regulation, fault detection, and energy optimization into a compact, rugged design.
Featuring dual-core processing and advanced firmware, the ABB MC91 HESG440588R4 HESG112714/B supports multiple control algorithms, including vector control and direct torque control (DTC), ensuring optimal performance for both induction and permanent magnet motors. Its core functions include real-time monitoring of motor parameters (current, voltage, temperature), dynamic braking, and compliance with safety standards like SIL2. Positioned as a versatile solution for variable speed drives (VSDs) and motor control centers (MCCs), the module enhances system efficiency by reducing energy consumption and minimizing downtime through predictive maintenance capabilities.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | MC91 HESG440588R4 HESG112714/B |
| Manufacturer | ABB |
| Product Type | Motor Control Unit (MCU) |
| Control Algorithms | Vector control, DTC, sensorless control |
| Voltage Range | 200–690 VAC (3-phase) |
| Power Rating | 0.75–500 kW |
| Communication Protocols | Profibus DP, Modbus RTU, Ethernet/IP |
| I/O Channels | 8x DI, 4x DO, 2x AI, 1x AO (configurable) |
| Safety Integrity Level | SIL2 (IEC 61508) |
| Operating Temperature | -10°C to +50°C (with derating up to +60°C) |
| Dimensions (W×H×D) | 200 mm × 300 mm × 150 mm |
| Mounting Method | Panel mounting or integrated into drives |
| Certification | CE, UL, CSA, RoHS, ATEX (hazardous areas) |
MC91 HESG440588R4 HESG112714/B
Main Features and Advantages
The ABB MC91 HESG440588R4 HESG112714/B excels in its ability to deliver precise motor control with minimal energy loss. Its advanced DTC technology provides torque response within 2 ms, making it ideal for applications requiring rapid acceleration/deceleration, such as conveyors or pumps. The module’s built-in safety functions, including safe torque off (STO) and safe stop 1 (SS1), comply with machinery safety standards, reducing the need for external safety relays and simplifying system design.
A key advantage is the MC91’s compatibility with ABB’s drives and automation systems, enabling seamless integration with products like the ACS880 drive series. The module’s configurable I/O channels and multi-protocol communication interface allow flexible connectivity to PLCs, HMIs, and SCADA systems, supporting both centralized and distributed control architectures. Real-time diagnostics, accessible via LED indicators or remote monitoring tools, provide actionable insights into motor health, such as bearing wear or winding temperature trends, enabling proactive maintenance and reducing unplanned downtime.
The module’s rugged construction, with reinforced heat sinks and conformal coating for moisture resistance, ensures reliability in harsh environments, including high humidity, dust, or vibration. Its compact design saves space in control panels, while the intuitive programming interface (via ABB’s Drive composer software) reduces commissioning time and training requirements for operators.
Application Field
The ABB MC91 HESG440588R4 HESG112714/B is widely deployed across industries that rely on electric motor-driven processes. In manufacturing, it optimizes the performance of CNC machines, robotics, and assembly lines by providing precise speed and torque control, enhancing product quality and throughput. In the oil and gas sector, the module’s ATEX certification allows safe operation in explosive atmospheres, controlling pumps, compressors, and mixers in upstream and downstream applications.
For power generation, the MC91 manages turbine auxiliary motors and boiler feed pumps, ensuring stable operation under varying load conditions. In water treatment plants, it regulates pump speeds to match demand, reducing energy consumption by up to 30% compared to fixed-speed systems. The module also supports renewable energy applications, such as wind turbine pitch control and solar tracking systems, where precise, reliable motor control is critical for maximizing energy capture.
By addressing the challenges of energy efficiency, safety, and maintenance in motor-driven systems, the MC91 helps customers achieve sustainability goals while maintaining operational excellence. Its versatility and scalability make it suitable for both retrofitting legacy systems and deploying in greenfield projects with advanced automation requirements.
MC91 HESG440588R4 HESG112714/B
Related Products
- ABB MC51 HESG440587R3: A compact variant of the MC91 for low-power applications (up to 55 kW), offering basic motor control functions at a lower cost.
- ABB MC152 HESG440590R1: A high-voltage motor control unit designed for 3–10 kV systems, complementary to the MC91 in large-scale industrial setups.
- ABB ACS880-01-004A-3: A variable speed drive that integrates with the MC91 for seamless motor control, featuring built-in safety and communication capabilities.
- ABB PM866AK01 3BSE066503R1: A PLC module that pairs with the MC91 for complex automation sequences, enabling coordinated control across multiple motors.
- ABB PT500: A temperature transmitter that interfaces with the MC91 to monitor motor winding temperatures, enhancing predictive maintenance capabilities.
- ABB CM602: A communication module that extends the MC91’s connectivity to cloud-based platforms, enabling remote diagnostics and analytics via ABB Ability™.
Installation and Maintenance
Pre-installation preparation: Ensure the ABB MC91 HESG440588R4 HESG112714/B is installed in a well-ventilated control panel, away from heat sources. Verify the input voltage matches the module’s specifications and connect motor cables using shielded wiring to minimize EMI. Configure the control mode (voltage/frequency or vector control) and safety parameters via Drive composer software, ensuring compatibility with the motor type and application requirements.
Maintenance recommendations: Regularly inspect the module’s cooling fans and heat sinks for dust accumulation, cleaning them with compressed air to maintain optimal thermal performance. Use Drive composer to monitor motor parameters, such as unbalanced currents or excessive vibration, which may indicate mechanical issues. Update the firmware periodically to access new features and security patches, and test safety functions (e.g., STO) during routine maintenance to ensure compliance with safety standards. In the event of a fault, review the module’s event logs to identify the cause and replace faulty components promptly, using ABB-certified spares to maintain system reliability.
Product Guarantee
ABB stands behind the MC91 HESG440588R4 HESG112714/B with a comprehensive quality assurance program, including rigorous testing for electromagnetic compatibility, thermal stability, and safety compliance. The module is backed by a standard [X-year] warranty, covering defects in materials and workmanship. ABB’s global service network provides 24/7 technical support, on-site commissioning, and predictive maintenance services, ensuring rapid resolution of issues and maximizing uptime. Customers can leverage ABB’s digital tools, such as ABB Ability™, for real-time health monitoring and remote diagnostics, reinforcing the company’s commitment to delivering reliable, future-proof motor control solutions.
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