Danaher Motion / Kollmorgen S71201-SE Digital Servo Amplifier

The Kollmorgen S71201-SE is a digital servo amplifier engineered for precision motion control in demanding industrial environments. Part of the S700 series, this unit delivers high-speed current, speed, and position control with onboard EMV filtering and autotuning capabilities. It accepts three-phase AC input from 208 V to 480 V at 50/60 Hz and supports continuous output current of 6 A RMS at 320 V, with peak output reaching 18 A RMS. The amplifier integrates Safe Torque Off as standard, with optional expansion cards available for SIL2 and SIL3 safety functions.

Technical Specifications

Input voltage: 208–480 VAC, 1 or 3-phase, 50/60 Hz (grounded, phase-to-phase)

Rated supply: 3 × 208 V −10% to 3 × 480 V +10%, 50/60 Hz

Rated input power (S1): 1.1 kVA

Continuous output current: 6 A RMS at 320 V

Peak output current: 18 A RMS

Voltage transition speed: 5.7 kV/µs at 480 V

Thermal dissipation: Up to 100 W

Noise emission: Up to 65 dB(A)

Enclosure rating: IP20

Weight: 4.4 kg

Switch on/off frequency: 30 cycles/hour maximum

Key Features

Autotuning capability for simplified commissioning

Onboard EMV filter for electromagnetic compatibility

EtherCAT and CANopen communication protocols (standard)

Safe Torque Off function integrated

Optional expansion cards with SIL2/SIL3 safety ratings (SDI, SLS, SS1, SS2, SBC)

Overvoltage protection built-in

Memory card slot for parameter and firmware backup

Feedback & Expansion

Single Cable Feedback SFD3 and Hiperface DSL support

Resolver interface optimized

ROD (AquadB) 5 V feedback interface (X5, X1)

Expansion slot accepts I/O cards (example: 14 digital inputs, 8 digital outputs)

Analog ±10 V input/output expansion cards available

Compatibility & Integration Compatible with standard motion controllers. Integrates with EtherCAT and CANopen-based systems for networked motion applications.