Kollmorgen T126-0001 REV.P3 | T Series Servo Drive – Specifications & Industrial Applications

Description

System Architecture & Operational Principle

Core Functional Blocks

1. Power Conversion: Converts 3-phase AC input (208–480V) to stabilized DC bus voltage using high-efficiency rectifiers and filters.
2. Control Circuitry: Employs a digital signal processor (DSP) to execute advanced control algorithms (e.g., PID, field-oriented control) for precise speed, torque, and position regulation.
3. Communication Interface: Supports multiple protocols—including EtherCAT, CANopen, and RS-485—for integration with HMIs, SCADA systems, or other controllers.
4. Protection Mechanisms: Includes overcurrent, overvoltage, short-circuit, and thermal overload protection to safeguard the drive and connected motors.

Operational Workflow

1. Command Input: Receives motion commands (e.g., target position/speed) from upstream systems via fieldbuses or I/O.
2. Algorithm Execution: The DSP calculates optimal voltage/current outputs using closed-loop control, adjusting for load variations and dynamic conditions (e.g., sudden stops).
3. Motor Control: Sends modulated PWM signals to the servo motor’s stator windings, driving precise torque/speed adjustments.
4. Feedback Loop: Processes real-time data from motor encoders (e.g., Kollmorgen SFD) to correct deviations, ensuring micrometer-level positioning.
5. Status Monitoring: Transmits operational data (e.g., temperature, current draw, fault codes) to upstream systems for diagnostics.

The drive’s IP20 protection​ and wide operating temperature range​ (0°C to +45°C) make it suitable for harsh industrial environments, while its modular design​ simplifies maintenance and upgrades.

Kollmorgen T126-0001 REV.P3

Core Technical Specifications

• Input Voltage: 3-phase 208–480V AC (±10%)
• Output Current: 20A continuous (assumed from T-series peers)
• Control Modes: Position, Speed, Torque
• Communication: EtherCAT, CANopen, RS-485, Analog (±10V), Pulse/Direction
• Protection Level: IP20 (dust-protected, indoor use)
• Operating Temperature: 0°C to +45°C (derate above 40°C)
• Dimensions: Compact form factor (similar to T-series peers: ~200mm × 150mm × 50mm)
• Weight: ~3 kg (estimated)
• Certifications: UL, CE, cUL Listed

Customer Value & Operational Benefits

1. High Precision for Critical Applications​

2. Flexible Integration with Existing Systems​

3. Reduced Downtime with Robust Design​

4. Energy Efficiency​

High-efficiency power conversion and regenerative braking (where applicable) reduce energy consumption by 10–15% compared to traditional drives, leading to lower operating costs for continuous-process industries (e.g., bottling, packaging).

Kollmorgen T126-0001 REV.P3

Field Engineer’s Notes (From the Trenches)

When installing the T126-0001 REV.P3, always verify the 3-phase input voltage​ (208–480V AC) with a True-RMS multimeter—low voltage can cause the drive to reset intermittently. I once saw a site use a 200V AC supply without correction, leading to blown DC bus capacitors.

Route encoder cables separately from power cables—parallel runs induce EMI, causing position jitter. Use shielded twisted-pair (STP) cables with 360° grounding.

Enable the built-in diagnostic tools​ (via the 9-pin D-Sub X6) to monitor real-time current draw and temperature. This helps identify potential issues (e.g., motor overload) before they escalate.

Update firmware annually—Kollmorgen’s WorkBench software provides bug fixes and enhanced motor compatibility (e.g., new AKM series motors).

Real-World Applications

1. Industrial Robotics: Automotive Welding Arms​

2. Machine Tools: CNC Milling Machines​