Kollmorgen 04S-M60/8-PB Servo Drive 8A DC Motor Controller for Industrial Automation

Brand
Model Kollmorgen 04S-M60/8-PB

The Kollmorgen 04S-M60/8-PB is a high-performance transistor controller designed for precision speed and torque control of DC motors in demanding industrial applications. As a member of the Kollmorgen 04S Series, the Kollmorgen 04S-M60/8-PB represents a proven platform for four-quadrant servo operation, combining pulse-width modulated V-MOS transistor technology with robust protection circuitry to deliver reliable motion control performance. The module is engineered for integration into standard 19-inch industrial rack systems, making it a practical choice for both new installations and legacy system maintenance in manufacturing environments.

The Kollmorgen 04S-M60/8-PB operates from a 3-phase industrial mains supply through an isolating transformer, converting the incoming AC power into a regulated 60V DC link voltage. The power section employs a pulse-width modulated transistor stage utilizing V-MOS transistors to achieve smooth, efficient four-quadrant operation of DC motors with tachometer feedback. The rated output current of 8A with a “soft” ballast characteristic positions the Kollmorgen 04S-M60/8-PB as an ideal solution for medium-power servo applications where precise speed regulation and reliable braking energy management are essential.

In terms of system integration, the Kollmorgen 04S-M60/8-PB features a comprehensive set of functional blocks including PI current and speed controllers, two differential setpoint inputs, a tachometer input, and PLC-compatible 24V digital control inputs isolated by optocouplers. The module also incorporates a built-in ballast circuit that manages regenerative energy during motor braking, with a switch-on threshold of 85V and a “soft” characteristic that enables parallel operation of multiple modules on a shared DC-link bus.

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Description

 

Technical Specifications

Parameter Name Parameter Value
Product Model 04S-M60/8-PB
Manufacturer Kollmorgen
Product Type Transistor Servo Controller / DC Motor Drive
Series 04S Series
Input Voltage (3-phase) 3 × 43V AC (via isolating transformer)
DC-Link Voltage (Nominal) 60V DC
DC-Link Voltage (Minimum) 18V DC
Rated Output Current 8A
Peak Output Current 20A
Rated Apparent Power 0.5 kVA
Ballast Switch-On Threshold 85V DC
Ballast Switch-Off Threshold 75V DC
Ballast Pulse Power 1000W
Format Eurocard, 220mm insertion depth
Dimensions (H × W) 3HE (100mm) × 12TE (approx. 61mm)
Mounting 19-inch rack system

 

Main Features and Advantages

Four-Quadrant Operation with V-MOS Technology: The Kollmorgen 04S-M60/8-PB employs a pulse-width modulated transistor stage built with V-MOS transistors, enabling efficient four-quadrant operation of DC motors. This architecture allows the drive to control motor speed and torque in both directions of rotation and in both motoring and generating modes, making the Kollmorgen 04S-M60/8-PB suitable for applications requiring rapid directional changes and regenerative braking capability.

Integrated Ballast Circuit with Soft Characteristic: A distinctive feature of the Kollmorgen 04S-M60/8-PB is its built-in ballast circuit with a “soft” characteristic. When the motor decelerates and feeds energy back into the DC-link, the ballast circuit dissipates excess energy as heat in an external ballast resistor. The “soft” characteristic causes the switch-on threshold to rise from 85V to 90V under repetitive loading, enabling effective power sharing when multiple Kollmorgen 04S-M60/8-PB modules operate in parallel on the same DC-link bus.

Flexible Feedback Configuration with IxR Regulation Option: The Kollmorgen 04S-M60/8-PB supports both tachometer feedback and armature voltage (IxR) regulation, selectable via solder links on the controller board. This flexibility allows the drive to be adapted to different motor types and application requirements without external hardware changes. The tachometer input features a wide adjustment range from 8V to 75V, accommodating various tachogenerator specifications.

PLC-Compatible Isolated Control Interface: All digital control inputs on the Kollmorgen 04S-M60/8-PB are electrically isolated by optocouplers, ensuring compatibility with standard 24V PLC logic systems while protecting the control electronics from ground loops and electrical noise. The enable input, limit-switch inputs, and integral-off input all operate at logic levels of 12V to 30V with a typical current draw of 8mA, facilitating straightforward integration into existing automation architectures.

Comprehensive Protection and Monitoring: The Kollmorgen 04S-M60/8-PB incorporates multiple protective functions including short-circuit and earth-fault protection at the motor terminals, overvoltage monitoring, output stage temperature monitoring, and I²t monitoring for both the amplifier and motor. A system-ready relay with a floating contact enables the drive to participate in the machine‘s safety circuit, ensuring that the operational readiness of the Kollmorgen 04S-M60/8-PB is continuously monitored.