DC servo drive
maxon EPOS4
Modular positioning controllers for brushed and brushless maxon motors, in module, compact, micro and housed formats with CANopen or EtherCAT.
Key specifications
| Supply | 10-60 Vdc |
|---|---|
| Feedback | Hall sensors, incremental encoder, SSI absolute encoder, analog incremental |
| Fieldbus | CANopen, EtherCAT, USB, RS232 |
| Continuous current (max) | 20 A |
| Peak current (max) | 40 A |
| Safety | STO SIL3/PLe on 60/20 STO variants |
Summarised in our own words from maxon group (maxon motor ag)'s published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2 · Source 3
Notes on this data
Maxima from EPOS4 Module 60/20 STO (20 A cont, 40 A for 15 s, 10-60 V). 50/15: 15 A / 30 A, 10-50 V. Variants 24/1.5 to 60/20 plus 3-axis compact 24/5. Motors up to ~1,200 W.
Specify Motion is not affiliated with maxon group (maxon motor ag). maxon and EPOS4 are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a maxon part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
Single-axis 24-70 VDC servo drives from 5 to 60 Arms (180 A peak), in RS (Modbus/pulse/analogue) and CAN (CANopen/analogue) versions. They drive brushless, brushed and PMSM motors including ELVM, with STO SIL3 and backup logic supply on the 40/60 A models.
| Published maximum | EPOS4 | ELD2 Series Low-Voltage DC Servo Drives |
|---|---|---|
| Continuous current | 20 A | 60 A meets or exceeds |
| Peak current | 40 A | 180 A meets or exceeds |
| Power | — | 2,500 W |
| Axes | — | 1 |
Palm-sized 24-70 VDC servo drives (76 x 50 x 33.5 mm) from 50 to 750 W in EtherCAT, CANopen and Modbus RTU versions, with STO, a second encoder input for full closed loop and support for slotless, brushed, voice-coil and linear motors.
| Published maximum | EPOS4 | ELD3 Series Miniature DC Servo Drives |
|---|---|---|
| Continuous current | 20 A | 20 A meets or exceeds |
| Peak current | 40 A | 50 A meets or exceeds |
| Power | — | 750 W |
| Axes | — | 1 |
Palm-sized Kinco 24-60 VDC drives at 5, 10 or 20 Arms for 50-750 W BLDC servo motors, with RS485, CANopen or EtherCAT, used heavily in AGVs.
| Published maximum | EPOS4 | OD Series Mini DC Servo Drives (OD114S… |
|---|---|---|
| Continuous current | 20 A | 20 A meets or exceeds |
| Peak current | 40 A | — |
| Power | — | 750 W |
| Axes | — | 1 |
Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other dc servo drive series
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