Third-generation bus servo performance with built-in EtherCAT
The SD20-E is the third-generation bus-type servo drive, engineered as a high-performance drive with a 3.2 kHz frequency response — more than double the previous generation. Built on a dual-core processor with a hardware current loop, 6 kHz position loop and 16 kHz speed loop, it delivers smooth motor control with no vibration at standstill and precise, fast response across the widest automation tasks.
With built-in EtherCAT (CANopen available as an option), the SD20-E has passed the official EtherCAT Conformance Test (CTT), guaranteeing compatibility with PLCs and automation controllers from different brands. Bidirectional data transmission reaches 100 Mbps with cycle times down to 250 μs, using DC distributed-clock synchronization with sub-microsecond jitter. Feedback options include incremental encoders, absolute encoders up to 23-bit (38 million pulses/rev) and resolvers.
Commissioning is simplified by gain autotuning, inertia autotuning, online rotating inertia identification, model feedforward control and notch filters. Rich functionality includes full-closed-loop control, gantry synchronization, electronic CAM, a built-in PLC for simple user programs, multi-position control, moving fixed-length cutting, gain switching, homing search and vibration suppression — making the SD20-E a complete motion solution.
Third-generation dual-core platform with hardware current loop, 6 kHz position loop and 16 kHz speed loop.
Passed the official EtherCAT Conformance Test for cross-brand PLC compatibility; 100 Mbps, DC distributed clock, min. cycle 250 μs, jitter < 1 μs.
Fieldbus flexibility with CANopen (F4) or Modbus via RS485/RS232 and USB for setup and monitoring.
Up to 38 million pulses per revolution; also supports incremental encoders and resolvers.
Profile Position, Profile Velocity, Profile Torque, Homing, Cyclic Sync Position, Cyclic Sync Velocity, Cyclic Sync Torque.
Gain autotuning, inertia autotuning, online inertia identification, model feedforward and notch filters for fast commissioning.
User-programmable logic plus E-CAM, gantry synchronization and multi-position control for complex motion.
Overvoltage/undervoltage, overload, overcurrent, overspeed, encoder error, phase loss, overheat, regen brake error, battery under-voltage and sync-loss protection.
| Series power range | 0.1 – 110 kW |
|---|---|
| 220 V class ratings | 100 W / 200 W / 400 W / 750 W / 1–7.5 kW (11 models) |
| 380 V class ratings | 1.5 – 37 kW (12 models) |
| Input supply | 1-phase 220 V (S2), 3-phase 220 V (T2), 3-phase 380 V (T3), ±10%, 50/60 Hz |
| Motor type | PMSM servo motor |
|---|---|
| Speed loop response | 3.2 kHz |
| Speed fluctuation | ±0.01% (0–100% load) |
| Speed control range | 1:10,000 |
| Control modes | PP / PV / PT / HM / CSP / CSV / CST |
| Electronic gear ratio | 0.01 ≤ B/A ≤ 100, two switchable groups |
| High-speed pulse input | Up to 4 MHz |
| Fieldbus | EtherCAT (CoE, 100BASE-TX, DC sync) built-in; CANopen optional; Modbus RS485/RS232; USB |
|---|---|
| Encoder support | 23-bit absolute, 17-bit absolute, 2500/5000 PPR incremental, resolver |
| Display | 5-digit LED, 4 keys, S-ON / RUN / ALM indicators |
| Compliance | IEC/EN 61800-5-1:2007, IEC/EN 61800-3:2004+A1:2012 |
|---|---|
| Applicable load inertia | < 5× motor inertia |
Not sure which model fits your machine? Contact us with your application details — our team will recommend the right drive, motor and options.
0.1–45 kW
High-response, full-featured servo control from 100 W to 45 kW
0.2–1.8 kW
1.2 kHz high-response precision servo in a slim single-board design
2 × 0.2–1.8 kW
One drive, two axes — double the precision in half the space
