Close this search box.

The ARS 2100 servo positioning controllers (ARS servo 2nd generation) are intelligent AC servo inverters for operation direct from a single-phase mains supply. They are flexible and can be easily adapted to a number of different applications, with many adjustment and expansion options.

Due to the integrated Power Factor Correction the device already fulfils the standards according to EN 61000-3-2 (limitation of mains current harmonics). In addition to speed and torque control, positioning, speed and angle synchronisation with electronic gear, the CANopen protocol DSP402 allows the implementation of contouring controls with linear interpolation as well as time-synchronised multi-axis applications.

The ARS 2000 communicates with PLCs via Fieldbus like the integrated CAN Interface or Fieldbus options, e.g. Ethernet, PROFIBUS or SERCOS.

The servo positioning controllers can be used universally since they can be connected to various encoder systems and motor types.

With the menu-driven configuration tool Metronix ServoCommander (TM) and the automatic motor identification, the ARS 2000 quickly and comfortably adapts to your requirements.


  • 380 V DC bus voltage due to active PFC
  • 2.5/5A and 5/10A rated / peak current
  • Integrated EMC filter
  • Integrated brake chopper, external brake resistance can be connected
  • Separate 24 V DC supply for controller unit
  • 3 analogue set point inputs, 1 x 16 bit / 2 x 10 bit
  • Fieldbus interface CAN with CANopen user profile as per DSP402
  • Control via digital I/O
  • UL certification in preparation


  • Integrated Power Factor Control (PFC)
  • Single phase servo drive to 1kW
  • Direct-on-line operation
  • Simple commissioning through software wizard
  • Expansion for I/O, Fieldbus, Feedback

Fieldbus options

RS232 (RS485) and CANopen (as per DSP 402) are standard interfaces on the ARS 2000 drives family. In addition the drives feature 2 extension slots, which can be populated with any of the following:

  • Ethernet (TCP/IP)
  • Sercos
  • Industrial Ethernet (in preparation)
  • DeviceNet (in preparation)
  • Additional digital I/O

Universal encoder interface

The ARS family of drives can operate with rotary, linear and torque motors alike. Suitable feedback devices include, Resolver, Incremental Encoder, SinCos encoder (single-/ multiturn) with Hiperface, high resolution encoders as well as single-/ multiturn absolute encoder with EnDat interface.


Technical Data for ARS 2102, ARS 2105 and ARS 2108

Features ARS 2102 ARS 2105 ARS 2108
Supply voltage 1 x 100...230 VAC [± 10 %], 50...60 Hz
Alternative DC Supply 60...380 VDC 60...320 VDC
Control voltage 24 VDC [± 20 %] (0,55 A) 24 VDC [± 20 %] (0,65 A)
DC link voltage 60...380 VDC 60...320 VDC
Clock frequency Variable clock frequencies up to 20 kHz, data for operation at 1 x 230 VAC [± 10 %], 50 Hz
Output power 0.5 kVA 1.0 kVA 1.5 kVA
Max. output power for 5 s 1.0 kVA 2.0 kVA 3.0 kVA
Rated output current 2.5 Aeff 5 Aeff 8 Aeff
Max. output current for 5 s 5 Aeff 10 Aeff 16 Aeff
Max. output current for 0.5 s 10 Aeff 20 Aeff 32 Aeff (fel ≥ 3 Hz) 4)
Current derating from 12 kHz 10 kHz
Internal brake resistor 60 Ohms 37 Ohms
Continuous power / pulse power 10 W / 2.8 kW 20 W / 2.8 kW 25 W / 3.9 kW
External brake resistor >50 Ohms >25 Ohms
Holding brake 24 VDC, max. 1 A
Dimensions servo drive H x W x D 200 x 54 x 200 mm
Weight 2.0 kg 2.1 kg 1.8 kg

Technical Features

Features Values
EMC directive 2014/35/EU verified by application of the harmonised standard EN 61800-3
Low-voltage directive 2014/30/EU verified by application of the harmonised standard EN 61800-5-1
cULus certification UL 508C, C22.2 No. 274-13
Admissible temperature ranges Storage temperature: -25 °C to +70 °C, operating temperature: 0 °C to +40 °C+40 °C to +50 °C at reduced power 2,5 % / K
Admissible installation height Mounting height max. 2000 m above msl, above 1000 m above msl with power reduction 1 % pro 100 m
Humidity Relative humidity up to 90 %, not bedewing
Protection degree IP20
Protection class I
Pollution degree 2
Inputs 10 x digital in (24 VDC), 3 x analogue in (± 10 VDC, 2 x 10 Bit, 1 x 16 Bit)
Outputs 4 x digital out (24 VDC), 1 x digital out (24 VDC) for holding brake

2 x analogue out (± 10 VDC, 9 Bit)
Interfaces Standard: USB 2.0, Ethernet, RS232 / RS485, CAN-Bus (CANopen DSP 402)


Digital terminal extension EA88
Encoder evaluation Universal encoder interface for motors with: resolver, analogue and digitalincremental encoder with/without commutation signals, SinCos encoder (single-turn/ multi-turn) with HIPERFACE®, HIPERFACE DSL®, high-resolution Heidenhainencoders, absolute encoder with EnDat 2.1 and 2.2