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Kollmorgen CR03261-000000

Product Overview

CR03261-000000 is a compact low-power digital servo drive from Kollmorgen SERVOSTAR CD platform; suffix 000000 indicates base standard unit without factory custom expansion options or safety STO modules. The model is designed for small frame AKM, Goldline B/M series low-power servo motors, adopting all-digital DSP triple-loop control architecture for miniature automation axis motion control.
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Detailed content

Technical & Performance Specifications

  • Mains Input Power: Single/Three Phase 115/230 VAC (±10%), 50/60Hz
  • Continuous Output Current: 3 Arms RMS per phase
  • Peak Output Current: 9 Arms RMS (5-second sustainable overload)
  • Rated Output Power: 0.75kW
  • Velocity Loop Maximum Bandwidth: 2kHz
  • PWM Switching Frequency: 16kHz
  • Standard Communication: CANopen DS402, RS232 configuration port
  • Analog I/O: 2x ±10VDC input, 1x ±10VDC output
  • Digital I/O: 6x 24VDC input, 3x 24VDC output
  • Built-In Brake Resistor: Integrated internal dynamic braking resistor for small inertia load deceleration
  • Protection Functions: Overcurrent, overvoltage, undervoltage, heatsink overtemperature, motor thermal fault, feedback loss, output short circuit
  • Cooling Method: Passive aluminum heat sink natural convection cooling
  • Protection Class: IP20 cabinet installation only
  • Net Weight: 1.6 kg

Material Composition

  1. Chassis Housing: Thin-wall extruded aluminum alloy with matte black anodized finish
  2. Power Radiator: Integrated extrusion aluminum fin heat sink unified with chassis frame
  3. Main Control PCB: High-density miniaturized FR4 flame retardant circuit board
  4. Terminal Connectors: Miniature PA66 insulated copper spring-clamp terminals
  5. Power Semiconductors: Surface-mount IGBT power bridge module with thermal conductive adhesive bonding to chassis radiator

Structural Features

  • Ultra-slim vertical compact form factor optimized for small-size control enclosures
  • Unified integrated chassis-heat sink structure eliminating separate radiator assembly
  • Front panel segmented terminal layout with distinct power, signal and communication zones separated by internal metal shielding
  • No internal fan components; all heat dissipation routed directly through external chassis extrusion fins
  • Onboard non-volatile flash memory stores complete motor parameter sets for rapid replacement commissioning

Working Principle

Single/three-phase AC mains rectified to DC bus voltage supplying integrated IGBT power inverter stage. DSP microcontroller processes incoming analog pulse/direction or CANopen motion commands, samples real-time motor encoder feedback signals to close torque, velocity and position triple control loops. 16kHz high-frequency PWM modulation generates smooth sinusoidal three-phase excitation current for small frame servo motors; integrated dynamic braking resistor absorbs regenerative energy during load deceleration cycles to stabilize DC bus voltage. Internal multi-channel fault detection circuit continuously monitors electrical and thermal operating parameters, executing instant power stage cut-off upon fault detection to protect drive and connected motor hardware.

Function Features

  1. Preloaded parameter library compatible with all Kollmorgen low-power AKM and Goldline series motors
  2. High 16kHz PWM switching frequency suppresses low-speed torque ripple below 0.8% rated torque
  3. Integrated dynamic braking resistor eliminates external brake resistor accessory requirement for low-inertia loads
  4. Compact spring-clamp terminal connectors enable fast wiring without screwdriver torque adjustment
  5. Built-in automatic anti-resonance filter to suppress miniature mechanical axis vibration
  6. RS232 diagnostic port for one-click parameter backup and restore operations

Advantage Highlights

  1. Fanless passive cooling architecture removes mechanical fan failure maintenance points
  2. Slim extruded aluminum chassis reduces cabinet space occupation by 35% vs comparable power S300 series drives
  3. Factory pre-calibrated motor parameter database cuts field commissioning time by 70%
  4. Integrated dynamic braking resistor lowers overall system component count and wiring complexity
  5. CE, UL/cUL, RoHS compliant for small automation OEM equipment mass production

Applicable Industries

Laboratory precision automation stages, small assembly robotic pick-and-place axes, desktop CNC engraving machines, medical laboratory diagnostic equipment, miniature packaging labeling machinery

Installation Requirements

  1. Vertical cabinet mounting only; horizontal placement restricts natural convection heat dissipation
  2. Minimum clearance: 60mm vertical above drive, 40mm lateral side airflow space
  3. Mounting surface flat metal plate connected to facility star ground grid via ≥4mm² copper earth wire
  4. Maximum motor cable length limited to 15 meters; shielded four-core motor cable mandatory
  5. Encoder feedback wiring uses twisted-pair shielded 0.25mm² cable, maximum transmission distance 60m

Operation & Maintenance Precautions

  1. Ambient operating temperature range strictly limited to 0°C ~ +40°C; temperature above 40°C requires 15% continuous output current derate
  2. Monthly compressed air cleaning of chassis extrusion fins to remove accumulated dust blocking heat dissipation
  3. Disconnect mains supply and wait minimum 5 minutes for DC bus capacitor discharge before opening cabinet wiring terminals
  4. Do not connect motors exceeding 0.75kW rated power output to avoid permanent power module overheating damage
  5. Prohibit deployment in high-humidity condensing environments or locations with conductive metal dust exposure

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