Digital guide
You are here:
Kollmorgen S74802-NANANA
Product Introduction:
The S74802-NANANA is a digital servo drive from Kollmorgen’s S-Series product line, engineered for high-bandwidth motion control of brushless servo motors. It features field-oriented control (FOC) with auto-tuning capabilities, delivering precise torque, velocity, and position control. The “NANANA” configuration indicates a base unit with no additional options installed — no internal brake chopper, no line filter, no extended I/O.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Drive Series | S-Series (S748xx Family) |
| Model | S74802 |
| Continuous Output Current | 8 A RMS |
| Peak Output Current | 24 A (3× continuous, 3-second limit) |
| Bus Voltage | 200 – 565 VDC (3-Phase Input) |
| Control Mode | Torque, Velocity, Position, Profile Mode |
| Feedback Input | Resolver, Sine/Cosine Encoder, EnDat, BiSS, Hiperface |
| Position Resolution | Up to 32-bit (depending on feedback) |
| Velocity Loop Bandwidth | Up to 1.2 kHz |
| Current Loop Bandwidth | Up to 4 kHz |
| Position Loop Bandwidth | Up to 400 Hz |
| Communication | EtherCAT, CANopen, RS-485 (Modbus RTU) |
| Digital I/O | 8 Inputs / 4 Outputs (Base Configuration) |
| Analog I/O | 2 Inputs / 1 Output (Base Configuration) |
| Enclosure Rating | IP20 (Open Chassis) |
| Operating Temperature | 0°C to +45°C (Derate above 40°C) |
| Dimensions (W×H×D) | ~106 × 130 × 160 mm (approximate) |
| Weight | ~1.8 kg |
| Compliance | CE, UL 508, RoHS |
Functional Features:
- Auto-Tuning: One-button motor identification (resistance, inductance, back-EMF, inertia)
- Advanced FOC algorithm with dead-time compensation and cross-coupling cancellation
- S-Curve and Trapezoidal profile generation with jerk limiting
- Electronic gearing with up to 32:1 ratio
- Camming function with up to 32 cam profiles
- Safe Torque Off (STO) per IEC 61800-5-2
- Brake control output (24 VDC, 1 A) — NOT INCLUDED in NANANA config
Structural Features:
- Power Stage: IGBT modules with integrated freewheeling diodes
- DC Bus: Electrolytic capacitors rated for 565 VDC
- Control Board: 32-bit DSP + FPGA for real-time control
- Cooling: Forced-air convection (internal fan)
- Connectors: Pluggable terminal blocks for power, motor, feedback, and I/O
Advantages:
- High current density in compact form factor
- Wide feedback compatibility — works with resolver, encoder, and absolute feedback
- EtherCAT master/slave for synchronized multi-axis systems
- Extensive tuning tools via Kollmorgen Workbench software
Applicable Industries:
- Multi-axis robotics
- CNC machines (milling, turning, grinding)
- Print and packaging
- Semiconductor wafer handling
- Medical device automation
Installation Requirements:
- Mount in control cabinet with minimum 100 mm clearance on all sides for airflow
- Connect 3-phase mains (L1, L2, L3) + PE to R/S/T/PE terminals
- Connect motor phases (U, V, W) to corresponding output terminals
- Connect feedback cable to dedicated feedback connector (J4)
- Ground the drive chassis to protective earth with <0.1 Ω impedance
Usage Notes:
- NANANA configuration means no internal brake resistor — external brake resistor required if using regenerative loads
- NANANA means no line-side EMI filter — add 5AF-1300-05 or equivalent externally if EMC compliance is required
- Maximum ambient temperature for full rated output is 40°C; derate linearly to 0 A at 50°C
- Always perform auto-tuning after motor replacement or mechanical coupling change
