The Kollmorgen 8MSA4M.E3-86 is a high-performance servo drive, engineered to serve as the control hub for heavy-duty motion systems. As part of Kollmorgen’s advanced MSA series—a line renowned for bridging mid-range and industrial-grade performance—it integrates seamlessly with the brand’s large-frame servo motors to form a complete high-torque motion solution. In control system architectures, this drive acts as the critical translator between upstream controllers and motors, converting digital commands into powerful electrical signals that govern speed, torque, and position with exceptional accuracy.
Model 8MSA4M.E3-86
Brand Kollmorgen
Type Heavy-Duty Servo Drive
Rated Output Current 26A continuous, 78A peak
Input Voltage 3-phase AC 380-480V
Control Modes Position, Velocity, Torque, Electronic Gearing
Communication Protocols PROFINET, EtherCAT, Modbus TCP
Protection Features Overcurrent, Overvoltage, Overheat, Short Circuit, Earth Fault
Cooling System Dual temperature-controlled fans
Operating Temperature -10°C to 55°C (14°F to 131°F)
Dimensions 220mm x 180mm x 100mm (W x H x D)
Weight 3.2 kg
Protection Class IP21
Mounting DIN rail or panel mount
The Kollmorgen 8MSA4M.E3-86 is a high-performance servo drive, engineered to serve as the control hub for heavy-duty motion systems. As part of Kollmorgen’s advanced MSA series—a line renowned for bridging mid-range and industrial-grade performance—it integrates seamlessly with the brand’s large-frame servo motors to form a complete high-torque motion solution. In control system architectures, this drive acts as the critical translator between upstream controllers and motors, converting digital commands into powerful electrical signals that govern speed, torque, and position with exceptional accuracy.
8MSA4M.E3-86
What distinguishes the Kollmorgen 8MSA4M.E3-86 is its role in bridging the gap between mid-range drives and industrial powerhouses. It fits into distributed control systems (DCS) and programmable automation controller (PAC) setups for large-scale automation, communicating effortlessly with PLCs and SCADA systems to execute complex motion profiles. For engineers and integrators, its compatibility with Kollmorgen’s 4000 series high-torque motors and select third-party industrial servos simplifies system design, making it a versatile choice for upgrading legacy heavy machinery or building new high-capacity automation cells.
8MSA4M.E3-86
Main features and advantages:
The Kollmorgen 8MSA4M.E3-86 delivers exceptional performance through a combination of robust engineering and intelligent design. With a continuous output current of 26A and peak current exceeding 78A, it drives large servo motors with rated torques up to 12 Nm—enough power to move heavy loads while maintaining micron-level positioning accuracy. Its advanced field-oriented control algorithms minimize torque ripple even at low speeds, ensuring smooth operation in applications like precision winding of heavy-gauge wire, where material tension must remain constant to prevent breakage.
Hardware-wise, the Kollmorgen8MSA4M.E3-86 features a rugged cast aluminum housing with reinforced mounting points, designed to withstand the rigors of industrial environments. Its dual-fan cooling system—with temperature-controlled speed—maintains optimal operating temperatures even in ambient conditions up to 55°C, while an IP21 protection rating shields internal components from dust and dripping water. The drive’s modular design includes removable terminal blocks for quick replacement during maintenance, reducing downtime in critical operations.
Compatibility is a key strength, with support for PROFINET, EtherCAT, and Modbus TCP protocols that enable seamless integration into Industry 4.0 networks. It works flawlessly with Kollmorgen’s AKM4 and AKM5 servo motors, as well as third-party motors with multi-turn absolute encoders, offering system designers flexibility without sacrificing performance.
8MSA4M.E3-86
Application areas:
In the high-stakes realm of heavy-duty industrial automation, where power and precision must operate in perfect harmony, the Kollmorgen 8MSA4M.E3-86 emerges as a critical performer. Imagine a large-scale steel processing facility, where rolling mills require consistent torque to shape red-hot metal into precise sheets. Or visualize an automated warehouse system moving pallets weighing hundreds of kilograms, where sudden speed adjustments demand instantaneous drive response. These are the environments where the Kollmorgen 8MSA4M.E3-86 excels, delivering the robust performance needed to keep heavy machinery operating with unwavering accuracy.
Used in industrial automation across sectors like automotive manufacturing—where it drives robotic welders handling thick metal components—and in mining equipment powering conveyor systems that transport ore 24/7, the Kollmorgen 8MSA4M.E3-86 thrives in applications requiring sustained high torque. In large-scale printing presses handling wide-format materials, it maintains precise roller speeds to prevent material stretching or tearing. Its ability to operate reliably in high-vibration environments makes it indispensable in construction machinery simulators, where realistic motion replication depends on consistent drive performance. Whether in foundries with ambient temperatures pushing 50°C or in outdoor installations exposed to dust and moisture, the Kollmorgen 8MSA4M.E3-86 delivers the power and precision that keep critical industrial processes on track.
8MSA4M.E3-86
Technical specifications:
Model 8MSA4M.E3-86
Brand Kollmorgen
Type Heavy-Duty Servo Drive
Rated Output Current 26A continuous, 78A peak
Input Voltage 3-phase AC 380-480V
Control Modes Position, Velocity, Torque, Electronic Gearing
Communication Protocols PROFINET, EtherCAT, Modbus TCP
Protection Features Overcurrent, Overvoltage, Overheat, Short Circuit, Earth Fault
Cooling System Dual temperature-controlled fans
Operating Temperature -10°C to 55°C (14°F to 131°F)
Dimensions 220mm x 180mm x 100mm (W x H x D)
Weight 3.2 kg
Protection Class IP21
Mounting DIN rail or panel mount
8MSA4M.E3-66 – Lower current variant (20A continuous) in the same series, ideal for medium-heavy applications like plastic injection molding machines with smaller clamping forces.
8MSA5M.E3-106 – Higher power model (32A continuous) for extreme loads, often paired with the Kollmorgen 8MSA4M.E3-86 in multi-axis systems such as large robotic arms handling automotive chassis components.
Kollmorgen AKM52K-ANCNR-00 – Heavy-duty servo motor perfectly matched with the Kollmorgen 8MSA4M.E3-86 for high-torque applications like steel rolling mills.
8MSA-CAB-10M – Shielded power cable set designed for the Kollmorgen 8MSA4M.E3-86, minimizing electromagnetic interference in environments with high-voltage equipment.
KAS400-26 – Current monitoring module that works with the Kollmorgen 8MSA4M.E3-86 to provide real-time performance data, enabling predictive maintenance in continuous production lines.
8MSA-PWR-400V-HD – Dedicated 3-phase power supply optimized for the Kollmorgen 8MSA4M.E3-86, ensuring stable voltage during peak current demands in heavy machinery.
Installation and maintenance:
Pre-installation planning for the Kollmorgen 8MSA4M.E3-86 focuses on robust mounting and thermal management. The drive requires a reinforced DIN rail (35mm) rated for at least 5kg load, or a panel mount with M6 bolts torqued to 8 Nm to resist vibration in high-impact environments. Ensure a minimum clearance of 200mm around the drive—critical for airflow to the dual fans—and avoid mounting above heat-generating equipment like transformers.
Electrical installation demands attention to cable sizing: use 6mm² cables for power connections and 1.5mm² cables for signal wiring, with all terminations using insulated ferrule connectors. Separate motor power cables from encoder and communication lines by at least 300mm, or use shielded conduit, to prevent noise interference. The drive’s ground terminal must connect to a dedicated earth bar with a 6mm² cable, achieving ground resistance below 0.1Ω to meet industrial safety standards.
Maintenance for the Kollmorgen 8MSA4M.E3-86 is proactive yet straightforward. Inspect fan filters weekly in dusty environments, cleaning or replacing them to maintain airflow—clogged filters are the primary cause of overheating. Check power terminals monthly for tightness, as thermal cycling can loosen connections over time. Use the MSA Industrial Configurator quarterly to run diagnostic checks, verifying encoder signal integrity and drive output accuracy. Update firmware annually via the Ethernet port to ensure compatibility with new motor models and control features.
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