Digital guide
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Kollmorgen S70602-NA
Product Introduction
The S70602-NA is a high-performance, compact digital servo drive from the S700 series, designed for demanding dynamic applications. The “-NA” suffix typically denotes a base unit with no expansion cards installed but includes onboard EtherCAT and CANopen.
Detailed content
Technical Specifications
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Continuous Output Current: 6 Arms
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Peak Output Current: 18 Arms (approx. 2 seconds)
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Input Voltage: 208 – 480 VAC, 3-phase
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Rated Power: 4.5 kVA
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Auxiliary Supply: 24 VDC (required for logic)
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Safety: Dual-channel STO (Safe Torque Off), SIL3 / PLe compliant
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Communication: Onboard EtherCAT, CANopen
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Feedback: Resolver, Incremental, Sine/Cos, Comcoder (via main board)
Functional Features
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High Bandwidth: Advanced current control for excellent dynamic response.
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Compact Design: Narrow housing (~76 mm width) saves cabinet space.
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Integrated EMI Filter: Built-in filter meets Class A EMI standards.
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Onboard I/O: 6 digital inputs, 2 digital outputs, 2 analog inputs (+/-10V).
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Expansion: 3 front slots available (though “-NA” means currently empty).
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Regenerative Braking: Integrated dynamic braking capability.
Material & Structure
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Housing: Aluminum extrusion with IP20 rating.
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Cooling: Integrated rear-mounted fan (forced air cooling).
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Connectors: Screw terminals for power/I/O, D-sub or hybrid connectors for feedback.
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Dimensions: Approx. 76 x 330 x 279 mm (W x H x D).
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Weight: Approx. 4.4 kg.
Working Principle
Employs a 32-bit DSP for real-time control loops (current, speed, position). It receives cyclic commands via EtherCAT/CANopen or analog signals and modulates the inverter stage using space vector PWM. Safety circuits (STO) physically disable gate drivers upon trigger, ensuring torque removal.
Installation Requirements
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Panel mount in vertical orientation with minimum 50mm top/bottom clearance for airflow.
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Connect 24V DC logic supply independently or shared as required.
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Shield motor cables and connect shield to drive housing ground terminal.
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Ensure STO inputs are wired according to safety category requirements (jumper if not used, but not recommended).
Usage Notes
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Fan must be unobstructed; drive faults on overtemp if cooling fails.
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S700 supports single-cable solutions (SFD3/Hiperface DSL) only with expansion cards; base unit uses separate feedback cables.
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Firmware updates managed via DriveGUI software.
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Ambient temp 0-40°C (derating to 55°C).
Applications
High-speed robotics, semiconductor manufacturing, electronics assembly, flying shear applications, printing, and converting.
