Kollmorgen S71201-NA | S700 Series Digital Servo Drive – Specifications & Integration Guide

Description

System Architecture & Operational Principle

Upstream Communication

• EtherCAT Interface: For high-speed, real-time communication (supports industrial Ethernet protocols);
• CANopen Interface: For integration with CAN-based systems;
• RS-232 Interface: For basic configuration and diagnostics.

Downstream Communication

Operational Advantages

• High Precision: Achieves ±0.01% speed regulation and ±0.001% position accuracy, critical for applications like semiconductor manufacturing or robotics;
• Integrated Safety: Onboard STO (Safe Torque Off) function meets SIL CL 2 (IEC 62061) requirements, preventing accidental motor startup;
• Flexible Communication: Supports multiple industrial protocols (EtherCAT, CANopen), enabling easy integration with existing automation systems.

Core Technical Specifications

Attribute​	Specification​
Input Voltage​	3-phase 200-480V AC (±10% tolerance); 24V DC (logic power)
Output Current​	12A continuous (24A peak for 5 seconds)
Motor Compatibility​	Brushless DC motors (e.g., Kollmorgen AKM series)
Communication Interfaces​	EtherCAT (real-time control); CANopen (device networking); RS-232 (configuration)
Safety Functions​	STO (Safe Torque Off) (SIL CL 2, IEC 62061)
Operating Temperature​	0°C to +40°C (32°F to 104°F)
Storage Temperature​	-25°C to +55°C (-13°F to 131°F)
Humidity Tolerance​	5–95% non-condensing
Protection Features​	Overcurrent, overvoltage, short-circuit, overtemperature protection
Dimensions (W×H×D)​	~150 mm × 100 mm × 50 mm (5.9 in × 3.9 in × 2.0 in) (estimated)
Weight​	~0.5 kg (1.1 lbs)
Certifications​	CE, UL, CSA

Kollmorgen S71201-NA

Customer Value & Operational Benefits

• Semiconductor Manufacturing: Wafer positioning systems require ±0.001% position accuracy to avoid damaging delicate components;
• Robotics: Robotic arms rely on precise speed and torque control to handle fragile items (e.g., glass bottles).

Field Engineer’s Notes (From the Trenches)

When installing the S71201-NA, always use shielded cables​ for motor connections—unshielded cables can pick up electromagnetic interference (EMI) from nearby power lines, leading to erratic motor behavior. I once saw a site where a contractor used unshielded cables, resulting in a “motor overcurrent” fault that took 2 hours to diagnose.

Another gotcha: verify the motor polarity—the drive’s output terminals must be connected to the motor’s phases in the correct order (A, B, C). I’ve fixed countless “motor not turning” issues by reversing the phase connections.

If the drive’s “FAULT” LED is red, check the STO status—the drive will shut down if the STO signal is activated. Use the configuration software to verify the STO settings and ensure the safety circuit is functioning correctly.

Real-World Applications

• Semiconductor Manufacturing: Wafer Positioning​
  A semiconductor fab uses the S71201-NA to drive brushless DC motors in its wafer positioning system. The drive’s high precision (±0.001% position accuracy) ensures that wafers are aligned correctly for photolithography, reducing yield loss by 15%.
• Packaging: Bottle Filling Lines​
  A beverage company uses the S71201-NA to control the speed of bottle filling machines. The drive’s real-time EtherCAT communication enables the PLC to adjust the filling speed dynamically, reducing product waste by 10%.
• Robotics: Material Handling​
  A logistics company uses the S71201-NA to drive robotic arms for material handling. The drive’s high torque (24A peak current) allows the robot to lift heavy boxes (up to 50 kg) with ease, improving throughput by 20%.

  

  Kollmorgen S71201-NA

High-Frequency Troubleshooting FAQ

• Over-Temperature: The drive’s internal temperature exceeds 40°C (check ventilation);
• Over-Current: The motor is drawing more than 12A (check for mechanical binding);
• STO Activation: The STO signal is activated (verify the safety circuit).

1. Power Down: Turn off the AC power supply to the drive;
2. Disconnect Wires: Unscrew the terminal blocks and disconnect the motor and control cables;
3. Remove Drive: Unscrew the drive from the control cabinet;
4. Install New Drive: Secure the new S71201-NA to the cabinet and reconnect the wires;
5. Power Up: Turn on the power supply and verify the drive’s operation (check the “OK” LED).

1. Cable Connection: Ensure the EtherCAT cable is connected to the correct port (Port 1 on the drive);
2. IP Address: Verify that the drive’s IP address matches the PLC’s configuration;
3. Protocol Settings: Ensure the PLC is configured for EtherCAT communication (check the PLC’s software).

Commercial Availability & Pricing