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Kollmorge S77201-NA
Product Introduction:
The S77201-NA is a digital servo drive from Kollmorgen’s S-Series, designed for high-performance AC servo motor control. The S77201 variant is configured for 2 A continuous / 6 A peak output current, making it suitable for smaller-frame motors such as AKM43, AKM52, or B-604 in low-torque applications. The “NA” configuration indicates a base unit with no additional options — no brake resistor, no filter, no extended I/O.
Detailed content
Technical Specifications:
| Parameter | Value |
|---|---|
| Drive Series | S-Series (S77xxx Family) |
| Model | S77201 |
| Continuous Current | 2 A RMS |
| Peak Current | 6 A (3× continuous, 3-second limit) |
| Bus Voltage | 200 – 565 VDC (3-Phase Input) |
| Control Modes | Torque, Velocity, Position, Profile |
| Feedback | Resolver, Sine/Cosine Encoder, EnDat, BiSS, Hiperface |
| Velocity Loop BW | Up to 800 Hz |
| Current Loop BW | Up to 3.5 kHz |
| Position Loop BW | Up to 300 Hz |
| Communication | EtherCAT, CANopen, RS-485 (Modbus RTU) |
| Digital I/O | 8 In / 4 Out (Base) |
| Analog I/O | 2 In / 1 Out (Base) |
| Enclosure | IP20 (Open Chassis) |
| Operating Temp | 0°C to +45°C |
| Dimensions (W×H×D) | ~106 × 130 × 160 mm |
| Weight | ~1.8 kg |
| Compliance | CE, UL 508, RoHS |
Functional Features:
- Auto-tuning with one-button motor parameter identification
- Field-Oriented Control (FOC) with adaptive compensation
- S-Curve / Trapezoidal profiling with jerk control
- Electronic gearing up to 32:1
- Camming up to 32 profiles
- STO (Safe Torque Off) per IEC 61800-5-2
- Following error limit and position window monitoring
Structural Features:
- Power Stage: IGBT modules with anti-parallel diodes
- DC Bus: 565 VDC rated electrolytic capacitors
- Control: 32-bit DSP + FPGA architecture
- Cooling: Internal forced-air fan
- Connectors: Pluggable terminal blocks (power, motor, feedback, I/O)
Advantages:
- Low current (2 A) drive — perfect for small AKM/B-Series motors
- Wide bus voltage range (200–565 VDC) — flexible power supply options
- Full feedback compatibility — resolver to BiSS-C
- EtherCAT native for high-speed multi-axis synchronization
Applicable Industries:
- Small robotic joints (finger, wrist actuators)
- Laboratory automation
- Semiconductor inspection stages
- Medical device linear axes
- Small conveyor segments
Installation Requirements:
- Mount in control cabinet with 100 mm minimum clearance
- Connect 3-phase mains (L1/L2/L3 + PE) to R/S/T/PE terminals
- Connect motor phases (U/V/W) to output terminals
- Connect feedback cable to J4 connector
- Ground chassis to PE with <0.1 Ω impedance
Usage Notes:
- NA = No internal brake resistor — external brake resistor required for regenerative loads
- NA = No line filter — add externally for EMC compliance
- Derate output current by 2% per °C above 40°C ambient
- Auto-tune required after any motor or mechanical coupling change
