SSD Drives Division North America




AC890 rack

AC890 Series

0.75 - 1500HP 
Modular Systems Drives 


The AC890 is a compact, modular systems drive engineered to control speed and position of open-loop and closed-loop, single- or multi-motor AC induction or servo motor applications. Includes Safe Torque Off (STO) feature (Frames B-F) to SIL3 or PLe level as per EN ISO13849 and EN61800-5-2.

Compatible with a wide range of feedback options, the AC890 is designed to work with any AC motor and virtually any speed/position feedback options. With this flexibility you may not even need to replace your existing AC motor to achieve high performance, saving you time and money.

The AC890 can be configured for 4 different modes of operation :

• Open-loop (volts/frequency) control

This mode is ideal for basic, single or multi-motor speed control.

• Sensorless vector control

With its ultra high performance sensorless vector algorithm, the AC890 delivers a combination of both high torque and close speed regulation without the need for any speed measuring transducer.

• Closed-loop vector control

Full closed-loop flux vector performance can be achieved with the AC890 by simply adding an encoder feedback ‘technology box’. This provides 100% continuous full load standstill torque, plus a highly dynamic speed loop more than sufficient for the most demanding applications.

• 4 Quadrant active front-end power supply module

With this configuration, the energy is fed back into the mains supply with sinusoidal currents and unity power factor; a very low current harmonic content is achieved (THD < 5%).


Ultra-fast control loops

• Torque loop: 62.5µs
• Speed loop: 62.5µs
• Position loop: 62.5µs

Serves the most demanding applications
Taking advantage of leading edge control algorithms running on a fast 150Mhz microprocessor, the AC890 drive can achieve very high-bandwidth control loops. This allows you to use the drive for the most demanding industrial applications e.g. printing, cut-to-length, rotary shear, converting and slitting.

Minimal delay between the fieldbus setpoints and the control loops
Designed to integrate in existing automation systems, the AC890 features high performance ports linked directly to the fast control loops of the drive. Minimum delay exists between your digital setpoint sent through a fieldbus and the control loops.

Replacement of analog solutions
Your existing analog setpoint-based solutions can be replaced by a digital fieldbus-based solution with
minimal bandwidth loss.

Flexible feedback
The AC890 offers system designers complete flexibility in their choice of feedback technology, including incremental encoder, EnDat 2.1 (SinCos) encoder, or resolver.

Open standards for protection of investment
The AC890 has been deliberately designed to integrate seamlessly into your automation network. To connect to your PLC or fieldbus network you can simply choose from the wide range of communication technology boxes.

Two performance level options for your needs:

Advanced performance
Motion control with added position loop, motion control function blocks, move incremental, move absolute, move home, line drive master ramp and section control, winder blocks (speed winder, current winder), full function PID, machine state and others.

High performance
All advanced features plus : library of pre-engineered application specific LINK VM function blocks such as : shaftless printing, cut-to-length, advanced winding, advanced traversing and others.

Technical specifications

Power supply:
890CS: 208–500Vac ±10%
Inverter (DC-AC)
890CD: 320/560–705Vdc
Converter (AC-AC)
890SD: 380–500Vac ±10%
  (Frames E thru K : 380–460Vac ±10%)

Operating temperature:
0–45°C (derate 2%/°C to 50°C max - frame sizes G-K: 0–40°C)
Maximum humidity
85% non-condensing

1000m ASL (Derate 1%/100m 1000–4000m max)

Degree of protection:
IP20: Frame sizes B,C,D, E, F
IP00: Frame sizes G, H, J
IP52: Frame size K


Analog inputs:
4 total, 2 configurable (0-10V, ±10V,
0-20mA, 4-20mA), +2 configurable
(0-10V, ±10V) 

Analog outputs:
2 configurable (0-10V, ±10V)
Digital inputs:

7 configurable (24V)
Digital I/O:

2 configurable (24V)

Relay digital output:
1 configurable (24V)
3 additional 230V rated dry contacts (frames E-K)

International standards

Most configurations of the AC890 series comply with the following standards:
- EN61800-3 (EMC) directive
- CE marked to EN50178 (Low Voltage) directive
- UL Listed to US safety standard UL508C
        CE_LOGO UL logo UL c



High speed feedback
• Incremental encoder
• EnDat® 2.1 (SinCos) encoder
• Resolver

Open FireWire IEEE 1394 process port

• 125µs Cycle time
• Real-time synchronization between drives

Open communications

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Removable terminal block connections for easier installation and maintenance


Fast connection of the common DC bus

Cablage 890 

Space saving compact footprint thanks to modular
design concept

Stand Alone Version

The complete drive

The AC890SD series Stand Alone drive provides a complete AC input to AC motor output, with power input and output terminals.

Other characteristics of the AC890SD include:

¦ Power output up to 1200 HP (900kW)
¦ 208-500 VAC input supply
¦ Access to all feedback and networking options
¦ Built-in dynamic brake switch provisions to add external braking resistor
¦ 24Vdc control board supply for programming
without power
¦ Torque and speed outputs
¦ USB programming port

Common Bus Version

Common bus drive

The AC890 is also available in a common bus platform, where individual motor output drives are easily connected to a common bus supply.

Characteristics of the common bus drive (AC890CD):
¦ Power output to 1200 HP (900kW) in 9 frame sizes
¦ Power Supply: 320 to 705 VDC
¦ Access to all feedback and networking options
¦ 24VDC control board supply for programming without power
¦ Torque and speed analog outputs
¦ USB programming port

Characteristics of the common bus supply module (AC890CS):
¦ Power output 7.5 to 110kW
¦ Power supply: 208-500 VAC
¦ Built-in dynamic braking unit (external braking resistor required)
¦ Operator display for diagnostics
¦ Up to 162A output per module

Active Front End

4 Quadrant active front-end power supply with regeneration to the supply network

The AC890CD and AC890SD can be configured to feed energy back into the mains supply with sinusoidal
currents and unity power factor; with very low levels of harrmonic current distortion.

Required parts:
Pre-load circuit
LCL filter

Fully bidirectionnel power flow
150% overload for 60 sec
Sinusoidal input current
Harmonic levels meet requirements of IEEE 519

It is possible to use a larger separate active front-end module for higher power AC890 systems. In this case, several AC890’s can be connected to the AFE using the AC890CA common bus adapter.

DC system power supply unit

AC890CS series
40A - 200A

The AC890CS power module is able to provide dual output voltages to power one or more AC890CD or stand alone AC890SD drives connected to a common DC bus. This modularity provides significant space saving in the enclosure.

Power Supply 208-500Vac
Built-in dynamic braking unit
Dual DC bus power output terminals
Operator display for diagnostics.

“Drive Healthy” contact
24Vdc auxiliary supply (optional)
HMI Interface
Power supply selector
Configurable analog outputs

Modular AC systems drives

AC890CD series
1.5A - 180A

Power supply 320, 650, 705VDC
Operator display supplied as standard
Common options as AC890SD
Fiedlbus options: Profibus, DeviceNet, ControlNet, CANOpen, Ethernet/IP, Modbus/TCP, EtherCAT, Profinet

Modular AC systems drives

AC890SD series
1.5A - 1681A

The AC890SD (Standalone) drives are independent modules with integrated three-phase supply inputs. With its wide range of sizes available, the AC890SD is suitable for every type of application from a small machine to a large industrial high power process line (eg rolling mill). It is also suitable for applications requiring sectional control and assembly of independent modules (eg printing systems).

Directly supplied AC or DC common bus
Built-in dynamic braking module
Operator display fitted as standard
Common options as AC890CD
Fieldbus options: Profibus, DeviceNet, ControlNet, CANOpen, Ethernet/IP, Modbus/TCP, EtherCAT, Profinet

AC890SD schema

EPLAN P8 Macro 

AC890CD - EPLAN Macro Download (ZIP)

AC890CS - EPLAN Macro Download (ZIP)

AC890SD - EPLAN Macro Download (ZIP)

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