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Kollmorgen S406BA-PBr

Product Introduction

Compact single-axis closed-loop servo drive designed for medium dynamic industrial motion control, compatible with brushless permanent magnet synchronous servo motors; dedicated matched with resolver-feedback motors, widely deployed in traditional precision automation equipment.

Detailed content

Technical Specifications

  • Input Power Rating: Single/Three Phase AC 200–240V, 47–63Hz
  • Continuous Output Current: 6 Arms
  • Peak Output Current: 18 Arms (250% overload, 3s duty cycle)
  • DC Bus Voltage: 325V DC nominal
  • Carrier Frequency: 4kHz fixed modulation
  • Control Supply: DC 24V ±10%, 200mA static consumption
  • Feedback Interface: Native resolver (Br suffix = resolver feedback dedicated port)
  • Encoder Auxiliary Output: A/B/Z simulated pulse output
  • Dimension: 345mm(H) × 70mm(W) × 243mm(D)
  • Net Weight: 4.2kg
  • Protection Class: IP20 (main body; terminal blocks IP00)
  • Operating Temperature Range: -10°C ~ +40°C; derate 4%/°C above 40°C
  • Storage Temperature: -40°C ~ +70°C
  • Altitude Derating: 1% power reduction per 100m above 1000m; max operating altitude 5000m

Function Features

  1. Supports three core control modes: Torque Mode, Velocity Mode, Position Mode
  2. Built-in regenerative braking circuit for rapid deceleration load energy recovery
  3. DQ vector current control algorithm for peak torque output under all speed bands
  4. 16kHz high-speed position/velocity loop refresh rate
  5. Embedded RS232 and CANopen communication bus
  6. 6-channel real-time software oscilloscope for machine dynamic diagnosis
  7. Automatic servo loop autotune for mismatched load inertia ratio up to 500:1
  8. Complete hardware protection: overvoltage, undervoltage, overcurrent, overheat, motor phase loss, short circuit, encoder fault

Performance Parameters

  • Velocity loop bandwidth: 400Hz maximum
  • Torque response time: <1ms
  • Position resolution: 28-bit closed-loop resolver sampling
  • Steady-state velocity fluctuation: ≤0.1% rated speed
  • Max motor drive speed: 5500rpm

Material Composition

  • Main Housing: Cold-rolled galvanized steel sheet, anti-corrosion phosphating coating
  • Power Module Substrate: Aluminum alloy heat sink with black anodic oxidation
  • Internal Circuit Board: FR-4 high-temperature flame retardant PCB
  • Terminal Connectors: Copper alloy with nickel plating
  • Power Capacitor Housing: Aluminum electrolytic shell

Structural Characteristics

  1. Vertical vertical mounting structure for natural convection heat dissipation
  2. Modular split design: power unit + control unit independent layout
  3. Front panel integrated LED status indicator, fault code digital display
  4. Rear side standardized power terminal block, side-mounted signal feedback terminal port
  5. Internal forced convection air duct with fixed cooling fan
  6. DC bus parallel interface for multi-axis shared bus energy balance

Working Principle

  1. AC grid input undergoes full-bridge rectification to form stable DC bus voltage
  2. Space vector PWM modulation converts DC bus into three-phase sine wave variable frequency AC for motor drive
  3. Resolver real-time collects rotor position/speed signal and transmits to DSP main control chip
  4. DSP executes closed-loop triple-loop algorithm (position outer loop → velocity middle loop → current inner loop)
  5. Real-time torque adjustment via DQ coordinate transformation to eliminate motor torque ripple
  6. Regenerative energy generated during motor braking is consumed by built-in braking resistor or fed back to shared DC bus

Advantage Highlights

  1. Native resolver drive support, stable operation under high vibration/dust industrial environments
  2. Ultra-low torque ripple at low speed, no mechanical jitter under micro-positioning motion
  3. Wide inertia matching range, compatible with small and large inertia servo loads
  4. Mature industrial bus protocol, seamless docking with legacy PLC motion controllers
  5. Robust surge protection (5000V surge withstand) for harsh factory power grid
  6. Long service life fixed fan, low maintenance frequency

Applicable Industries

Traditional CNC machine tools, textile machinery, printing equipment, packaging automation, metal forming machinery, material handling conveyors

Installation Requirements

  1. Mandatory vertical wall-mounted installation, drive front face facing operator
  2. Vertical clearance: ≥63.5mm above and below the drive for ventilation
  3. Horizontal clearance between adjacent drives: ≥10mm
  4. Mounting base plate flatness tolerance ≤0.1mm, conductive galvanized steel required
  5. Fastener specification: M5 hex socket screw, tightening torque 0.7–0.8Nm
  6. Install away from heat sources, transformers and frequency converters; avoid top heat radiation

Usage Precautions

  1. Wiring separation: power cable and feedback signal cable must run in separate conduits, single-end shielding grounding only
  2. Power-on sequence: 24V control power supply energized first, then main AC power supply
  3. Disconnect all power supplies for ≥10 minutes before maintenance to discharge DC bus capacitors completely
  4. Do not operate at ambient temperature exceeding 55°C without auxiliary forced air cooling
  5. Resolver wiring cannot be extended beyond 15m without signal amplification module
  6. Regularly clean cooling fan dust every 3 months to prevent overheat shutdown
  7. Ground wire cross-section ≥2.5mm² copper wire, reliable connection to equipment protective earth

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