PRODUCTS & SOLUTIONS

Positioning Controllers

Category: Controllers

TEPOS4 (Easy to use POsitioning System) is maxon's line of full-digital positioning controllers for DC and BLDC motors. Built to the CiA® 402 standard, EPOS4 integrates into single-axis setups through to complex multi-axis systems over CANopen or EtherCAT, with position, speed, and current/torque control and auto-tuning via the EPOS Studio software. Three hardware families cover every build stage: OEM Modules for custom motherboards, ready-to-connect Compact units, and Disk controllers for direct integration into joints and wheel drives.

Key advantages

Easy commissioning

Set up, tune, and diagnose drives from the EPOS Studio GUI, with auto-tuning built in.

Any master environment

CiA® 402 compliant, networkable and IoT ready: CANopen, EtherCAT, USB, and RS232 across the range.

Three form factors

OEM plug-in Modules, ready-to-connect Compact units, and Disk controllers for joints and wheel drives.

Safe and protected

Protective functions for controller and drive, with STO and SSC safety variants available.

Product range

An overview of key product specifications. Compare products across our product range and partner brands to find the right fit for your application.

maxon EPOS4 - OEM Module range

maxon EPOS4 OEM Module range

Plug-in PCB modules for integration into custom motherboards.
Modular multi-axis systems via CANopen or EtherCAT.
Micro variants for the smallest spaces.
Module 60/20 and 60/20 STO extend the range to 60 V / 20 A (1 200 W).
STO = Safe Torque Off safety function.

 
EPOS4 Micro24/5 CAN
EPOS4 Micro24/5 EtherCAT
EPOS4 Module 24/1.5
EPOS4 Module 50/5
EPOS4 Module 50/8
EPOS4 Module 50/15
EPOS4 Module 60/20
EPOS4 Module 60/20 STO
Operating voltage VCC
24 V
24 V
24 V
50 V
50 V
50 V
60 V
60 V
Cont. output current Icont
5 A
5 A
1.5 A
5 A
8 A
15 A
20 A
20 A
Clock freq. power stage
50 kHz
50 kHz
100 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
PI current controller
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
PI speed controller
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
PID positioning controller
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
RS232
✓
–
✓
✓
✓
✓
✓
✓
USB
✓
✓
✓
✓
✓
✓
✓
✓
CANopen
✓
–
✓
✓
✓
✓
✓
✓
EtherCAT
–
✓
✓
✓
✓
✓
–
–
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maxon EPOS4 - Ready-to-connect Compact + Encased range

maxon EPOS4 Compact + Encased range

Pre-wired, ready-to-connect controllers for prototyping, small batches, and equipment engineering.
CAN and EtherCAT variants available for each power class.
3-axis EtherCAT variant enables three EPOS4 Micro controllers on a single PCB.
EPOS4 50/5 and 70/15 are encased units.

 
EPOS4 Compact 24/5 EtherCAT 3-axes
EPOS4 Compact 24/1.5 CAN
EPOS4 Compact 24/1.5 EtherCAT
EPOS4Compact 50/5 CAN
EPOS4 Compact 50/5 EtherCAT
EPOS4 Compact 50/8 CAN
EPOS4 Compact 50/8 EtherCAT
EPOS4 Compact 50/15 CAN
EPOS4 Compact 50/15 EtherCAT
EPOS4 Compact 60/20 CAN
EPOS4 Compact 60/20 CAN STO
EPOS4 50/5
EPOS4 70/15
Operating voltage VCC
24 V
24 V
24 V
50 V
50 V
50 V
50 V
50 V
50 V
60 V
60 V
50 V
70 V
Cont. output current Icont
5 A
1.5 A
1.5 A
5 A
5 A
8 A
8 A
15 A
15 A
20 A
20 A
5 A
15 A
Clock freq. power stage
50 kHz
100 kHz
100 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
PI current controller
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
PI speed controller
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
PID positioning controller
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
RS232
–
✓
–
✓
–
✓
–
✓
–
✓
✓
✓
✓
USB
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
CANopen
✓
✓
–
✓
–
✓
–
✓
–
✓
✓
✓
✓
EtherCAT
✓
–
✓
–
✓
–
✓
–
✓
–
–
✓
✓
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maxon EPOS4 - Disk range for joints & wheel drives

maxon EPOS4 Disk range for joints and wheel drives

Ring / donut form factor with centred through-hole.
Designed for direct integration into robot joints, wheel drives, and hollow-shaft mechanisms. CAN and EtherCAT variants.
SSC = Safe Speed Control safety function.
All 60 V / 8–12 A.

 
EPOS4 Disk 60/8 CAN
EPOS4 Disk 60/8 EtherCAT
EPOS4 Disk 60/12 CAN
EPOS4 Disk 60/12 CAN SSC
EPOS4 Disk 60/12 EtherCAT
EPOS4 Disk 60/12 EtherCAT SSC
Operating voltage VCC
60 V
60 V
60 V
60 V
60 V
60 V
Cont. output current Icont
8 A
8 A
12 A
12 A
12 A
12 A
Clock freq. power stage
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
50 kHz
PI current controller
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
25 kHz
PI speed controller
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
PID positioning controller
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
2.5 kHz
RS232
–
–
–
–
–
–
USB
✓
✓
✓
✓
✓
✓
CANopen
✓
–
✓
✓
–
–
EtherCAT
–
✓
–
–
✓
✓
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Typical Applications

This product range is deployed across multiple sectors.

Robotic joints Automated gates and barriers Conveyor drives Antenna positioning Medical equipment Packaging machinery