Description
Kollmorgen S70101-NA
Technical Specifications
- Product Family: SERVOSTAR S700 Series
- Size Class: S701
- Device Designation: S70101-NA
- Product Category: Digital Servo Amplifier
- Rated Line Power (S1): 1.1 kVA
- Rated Line Voltage: 1×110 V / 3×208 V (−10%) to 3×480 V (+10%)
- Rated DC Bus Voltage: 290–675 VDC
- Rated Output Current: 2.5 Arms at 1×110 V / 1×230 V / 3×208 V / 3×230 V; 2 Arms at 3×400 V; 1.5 Arms at 3×480 V
- Peak Output Current: 4.5 Arms
- Safety: Single-channel STO (Safe Torque Off)
- Onboard Communication: CANopen and EtherCAT
- Auxiliary Power Supply: 24 VDC
- Certifications: UL listed (file E217428), CE, TÜV
Functional Features
- Multi-Loop Control: High-speed current, velocity, and position control loops for rapid response and precise motion
- Autotuning: Intelligent autotuning that automatically adjusts PID parameters and feedforward settings based on a brief test movement
- Cogging Suppression: Built-in algorithms to minimize motor cogging effects for ultra-smooth operation
- Macro Programming: Integrated IEC 61131-3 structured text programming environment with 128 KB code memory
- Multi-Feedback Support: Reads and evaluates up to three feedback systems simultaneously, including resolvers, SinCos encoders (BiSS, EnDat 2.1/2.2, HIPERFACE), Hall sensors, and incremental encoders
- Onboard Fieldbus: CANopen and EtherCAT for seamless network integration
- STO Safety Function: Single-channel Safe Torque Off compliant with SIL2/PLd
- Dynamic Braking: Integrated braking circuit for safe dissipation of regenerative energy
- MMC Storage Card Slot: For backup and replication of parameters and firmware
- LED Status Display: Embedded front-panel LED display for status and fault indication
- Configurable I/O: Digital and analog inputs/outputs for limit switches, emergency stops, and auxiliary control signals
Application Scenarios
- Small-Scale Automation: Pick-and-place systems, labeling machines, and compact assembly equipment
- Precision Positioning: Laboratory instruments, optical positioning stages, and measurement equipment
- Packaging Machinery: Small-format filling, wrapping, and carton-forming machines
- Medical Devices: Diagnostic equipment and precision actuators
- Robotics: Light-duty robotic arms and end-effector control
Performance Parameters
- Drive Type: Digital servo amplifier with IGBT power stage
- Control Modes: Torque, speed, and position control
- Switching Frequency: High-frequency PWM for low acoustic noise
- Protection Features: Overcurrent, overvoltage, undervoltage, overtemperature, phase loss, short circuit, and soft start
- Motor Overload Protection: Solid-state protection at 130% of full load current
- Short Circuit Rating: Suitable for circuits delivering not more than 42 kA rms symmetrical amperes at max 480 VAC
Material Composition
- Durable metal enclosure housing integrated power electronics (IGBT module with floating current measurement), control circuitry, EMC filter, and heat dissipation components
Structural Features
- Form Factor: Compact single-channel servo amplifier
- Mounting: Panel mounting inside control cabinets
- Expansion Slots: Slot 1 (empty in standard NA configuration), Slot 2, and Slot 3 for optional expansion cards
- Connectors: Power input/output terminals, motor connection terminals, feedback connector, STO inputs, and fieldbus interface
- Shield Connections: All shield connections made directly to the amplifier for EMC compliance
Working Principle
The S70101-NA receives AC power from single-phase or three-phase mains, rectifies it to a DC bus voltage, and drives the connected servo motor through its IGBT power stage using high-frequency PWM. The drive continuously reads feedback from the motor’s encoder or resolver and executes closed-loop current, velocity, and position control algorithms. The onboard CANopen and EtherCAT interfaces enable real-time communication with the host controller for coordinated multi-axis motion.
Installation Requirements
- Mount inside a closed switchgear cabinet free from conductive or corrosive materials
- Use non-painted (conductive) mounting plates for proper EMC grounding
- Ensure adequate clearance above and below the amplifier for unimpeded ventilation
- Keep the ambient temperature within the permitted range (0°C to 40°C, up to 45°C with derating)
- Connect power supply with appropriate fusing (Class RK5, CC, J, or T; max 6 A time-delay fuse)
- Use 60°C or 75°C copper wire only; use Class 1 wire only
- Tightening torque for field wiring terminals X0, X8, X9: 0.7–0.8 Nm (6.20–7.08 lbf·in)
- Use shielded cables for motor and feedback connections with shields connected directly to the amplifier
- Do not mount devices producing strong magnetic fields directly beside the amplifier
Usage Notes
- Verify motor compatibility using the drive’s motor database before commissioning
- Run the autotuning procedure after mechanical installation to optimize servo loop parameters
- If STO is not required, connect STO1-ENABLE and STO2-ENABLE directly to +24 VDC
- Monitor heat sink temperature during continuous operation (default alarm threshold: 80°C)
- Do not disconnect motor or power cables while the drive is energized
- Use the MMC storage card to back up parameters before firmware updates
- Consult the S70101 instruction manual for detailed fault codes and parameter settings
- Branch circuit protection must be provided in accordance with the National Electrical Code and local codes
