June 08, 2026

CB03250 Kollmorgen SERVOSTAR CD Series Digital Servo Drive

The CB03250 is a high-performance digital servo drive from Kollmorgen’s SERVOSTAR CD Series, engineered for precise, reliable motion control in demanding industrial automation environments. As a compact, panel-mountable amplifier, it delivers robust power output with advanced digital control capabilities, ideal for both standalone and networked motion systems.

Description

CB03250 Kollmorgen SERVOSTAR CD Series Digital Servo Drive

Overview

Designed as a Series 2 variant within the CD family, the CB03250 integrates a powerful digital signal processor (DSP) to execute fully digital current, velocity, and position control loops with sinusoidal commutation, ensuring smooth, low-ripple motion and accurate positioning. It supports a wide range of servo motors, including those with incremental encoders, resolvers, sine encoders, or Hall-effect sensors, and accommodates auxiliary encoder feedback for dual-loop or master-slave applications. The drive’s rugged, space-saving form factor simplifies integration into control panels, while its industrial-grade construction ensures long-term durability under fluctuating loads, thermal stress, and vibration.

Key Specifications

Manufacturer: Kollmorgen
Model: CB03250 (SERVOSTAR CD Series, Series 2)
Input Voltage: 110–230 VAC, single-phase or three-phase, 47–63 Hz
Continuous Output Current: 6.2 A
Peak Output Current: 18.6 A (for 500 ms)
DC Bus Voltage: 90 VDC undervoltage trip, 430 VDC overvoltage trip
Control Modes: Torque (current), velocity, position
Feedback Interfaces: Incremental encoder (A/B/Z), resolver, sine encoder, Hall sensors
Communication Protocols: CANopen, EtherCAT, RS-485; optional SERCOS or DeviceNet variants
Analog I/O: ±10 VDC command input; configurable analog outputs for velocity/current monitoring
Digital I/O: Configurable inputs (remote enable, limits, faults); configurable outputs (status, fault relay)
PWM Switching Frequency: Up to 16 kHz
Encoder Cable Length: Up to 15 m (50 ft) at 3 MHz max input frequency
Operating Temperature: 0°C to +45°C (ambient)
Protection Features: Overvoltage, undervoltage, overcurrent, overtemperature, feedback loss, motor overtemperature, current foldback
Dimensions (W × H × D): 67.3 mm × 244 mm × 163 mm
Weight: Approximately 1.61 kg
Compliance: CE marked, RoHS compliant

Core Features

Advanced Digital Control: High-speed DSP enables precise loop control with fast response times, minimizing position error and ensuring consistent motion quality.
Multi-Feedback Compatibility: Supports diverse feedback devices to match various motor types and application precision requirements, reducing system complexity.
Flexible Connectivity: Multiple communication options allow seamless integration into Ethernet-based, fieldbus, or analog control systems, supporting both centralized and distributed automation architectures.
Robust Protection & Diagnostics: Comprehensive fault detection and protection mechanisms safeguard the drive and motor, while built-in diagnostics simplify troubleshooting and reduce unplanned downtime.
Easy Commissioning: Compatible with Kollmorgen MOTIONLINK software for PC-based setup, auto-tuning, parameter backup/restore, and real-time monitoring, accelerating system configuration.
Compact & Durable Design: Optimized for panel mounting with a rugged enclosure that withstands harsh industrial conditions, including temperature fluctuations, vibration, and electrical noise.

Applications

The CB03250 is suitable for a wide range of motion control applications requiring high accuracy and reliability:

Industrial robotics and automated assembly lines
CNC machine tools and machining centers
Packaging, labeling, and material handling machinery
Textile and printing equipment
Automotive manufacturing (non-safety-critical systems)
Food and beverage processing machinery
General-purpose automation requiring precise speed, torque, or position control

Lifecycle & Availability

The CB03250 is an established, active product in Kollmorgen’s SERVOSTAR CD portfolio, available through authorized distributors with reliable lead times for volume orders. It is backed by Kollmorgen’s technical support and warranty services, ensuring long-term operational reliability and support for industrial automation systems.

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