AKD-N Decentralised Drive

The decentralised drive system consists of a central power supply and robust IP67 rated servo drives, which are placed close to the motor.

The system offers everything that is needed for the next generation of machine designs – and removes everything that adds complexity. The power supply, safety and fieldbus communication come together in a single 11mm diameter hybrid cable. Also, on the motor side there is only one cable needed for power, brake control and feedback. Altogether this leads to cable savings of more than 80% on the machine.

The drives cover a power range up to 4 kW. Safe Torque Off, as grouped or single control, is part of the standard equipment. Tertiary EtherCAT output and local STO are available as options.


  • More compact machines through smaller cabinet
  • Savings in cabinet air conditioning due to reduced drive losses
  • Faster setup due to significantly reduced cabling
  • Maximum degree of freedom in motor selection
  • Less hardware and reduced cabling through integrated I/O
  • Complete integration into Kollmorgen’s AKD servo drive family



Drives AKD-N00307 AKD-N00607
Continuous output current 3A 6A
Peak output current 9A 18A
Environmental area IP67
Size 75x130x201mm³
Fieldbus EtherCAT
Feedback SFD, Biss C, EnDat 2.1 and 2.2, Hall, Comcoder, Hiperface, Hiperface DSL
I/O 3 digital inputs, 1 digital output
Vibrations 3M5
Options Tertiary fieldbus (-DF)
Local STO SIL 2 / PLd (-DS)



Power Supply


Rated supply voltage 400…480V, 3 phase
Continuous output power 10 kVA
Peak output power 20 kVA
Environmental area IP 20
Size 329x80x198mm³
Fieldbus EtherCAT

AKD-C Central Power Supply Installation Guide

AKD-N Servo Drive Brochure

AKD-N Servo Drive Installation Manual

Single Cable Solution Flyer