One drive, two axes — double the precision in half the space
The SD20-D series is a high-integration dual-axis AC servo drive system that packs two complete servo drive axes into a single compact book-style unit. By sharing one power-stage housing and wiring harness for both axes, it dramatically cuts cabinet space, wiring labor and overall system cost compared with two standalone drives — an ideal motion solution for multi-axis machines where space and cost are tight.
Built on an advanced motor-control algorithm with high-resolution feedback support, the SD20-D delivers a 2.5 kHz speed response, ±0.01% speed fluctuation, precise speed/torque control and smooth low-speed operation. Each axis provides 5 DI + 3 DO programmable I/O, and the drive supports 2500-line incremental, 23-bit incremental and 17/23-bit absolute encoders as well as resolvers, with full-closed-loop control supported.
Available in EtherCAT-type, CANopen-type and pulse-type variants, the SD20-D covers position, speed and torque applications across a broad range of automated machinery. Advanced functions include gantry synchronization, electronic cam, a built-in PLC, high-speed counter, homing search, interrupt fixed-length positioning and auto gain tuning with online inertia identification.
Two axes in one unit, saving up to ~50% of installation space and reducing wiring cost versus two single-axis drives.
203 × 84 × 196 mm shared chassis for dense cabinet mounting.
2.5 kHz speed response, 1:10,000 speed range, ±0.01% speed fluctuation, 1-command-unit positioning accuracy.
Dedicated EtherCAT (CoE, DC sync, <1 μs jitter) and CANopen (CiA-301/402) models, plus pulse type with Modbus.
2500-line incremental, 23-bit incremental, 17/23-bit absolute (battery-backed multiturn), resolver; full closed-loop.
5 DI + 3 DO per axis (10 DI + 6 DO total), with cross-axis expansion.
Gantry synchronization, electronic cam, built-in PLC, high-speed counter, interrupt fixed-length positioning.
Automatic gain tuning with online inertia identification keeps commissioning fast as load characteristics vary.
| Axis power ratings | 0.2 / 0.4 / 0.75 / 1.0 / 1.2 / 1.8 kW |
|---|---|
| Continuous output current | 1.5 / 2.8 / 3.5 / 4.5 / 6.0 / 8.0 Arms |
| Maximum output current | 4.2 / 8.4 / 9.8 / 12.6 / 16.8 / 22.4 Arms |
| Input supply | Single- or three-phase AC 220 V ±10%, 50/60 Hz |
| Output | 0–220 V, 0–400 Hz |
| Speed response | 2.5 kHz |
|---|---|
| Speed fluctuation | ±0.01% (0–100% load) |
| Speed control range | 1:10,000 |
| Control modes | Pt / Pr / Sz / Sr / Tz / Tr plus mixed modes; CiA-402 modes on bus variants |
| Pulse input | 500 kHz differential / 200 kHz open-collector; 3 pulse formats |
| Electronic gear | 0.01 ≤ B/A ≤ 100, two switchable groups |
| Communication | RS485/RS232 Modbus; EtherCAT variant (100 Mbit/s, DC sync); CANopen variant (CiA-301/402) |
|---|---|
| Encoder support | 2500-line incremental, 23-bit incremental, 17/23-bit absolute, resolver |
| I/O | 5 DI + 3 DO per axis, programmable |
| Display / panel | 5-digit LED, 5 keys, AXIS key switches A/B axis menus |
| Dimensions | 203 × 84 × 196 mm (N2 frame) |
|---|---|
| Protection rating | IP20 |
| Ambient temperature | −10 to +40 °C |
| 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.
0.1–110 kW
Third-generation bus servo performance with built-in EtherCAT
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
