1,2 drives, 12-100V, up to 13.3/40A


Single/Dual Axis NanoPWM Drive with ±10V Current Commutation Commands      

  • Powerful Dual Axis  Drive Module
    Two drives per module 
    Voltage: 12Vdc – 100Vdc
    Current: Up to 13.3A / 40A (cont./peak)
  • The Ultimate Drive for Demanding Positioning Applications
    Sub-nanometer standstill jitter
    Nanometer tracking error and optimal velocity
  • Replaces Linear Drives while gaining all the advantages of PWM drives
    ±10v current commutation commands controller-drive interface
    Lower heat dissipation
    Better reliability
    Significantly smaller
    Simpler supply requirements
    Digitally controlled and easy setup
     Dynamic range control
    STO (Safe Torque Off) option
    Built-in motor phases shortening relays option

The NPAPC is a line of the most advanced PWM servo drives available today.

It is specifically designed to address the most demanding applications with regards to move and settle times,
standstill jitter, and velocity smoothness, such as wafer metrology and inspection, FPD inspection, and ultra-precision
machining for processing of optical components.

The NPAPC is based on ACS' proprietary and unique   proprietary and unique technology that exceeds the stand still jitter and

tracking error performance that until now has been achieved only with linear drives while gaining all the benefits
of a PWM type drive, such as lower heat dissipation, smaller size, and better reliability.
The NPAPC is designed to operate by any motion controller that supports two ±10V sine wave current
commutation commands.

The Unique    feature enables the motion controller to dynamically modify the current/command gain of the drive for

higher resolution low level current control and thus providing better velocity smoothness and lower position jitter control.
The current loop PI filter is programmable. Its gains can be selected by setting four logic inputs to one of 16 pre-set values
as well as programmed using the SPiiPlusMMI software suite.
The drives are protected against over current, over temperature, and over voltage. The unit supports motor over
temperature protection.

The unit can control external relays to shorten the phases of the motor for dynamic brake proposes.

The product supports implementation of STO (Safe Torque Off) on its carrier board to comply with EN ISO 13849-1 system
safety standard.


CE, UL (Pending)

EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.



Per Drive A B C D
Continuous/Peak current Sine
amplitude [A]
3.3/10 6.6/20 10/30 13.3/40
Cont./peak current [Arms] 2.3/7 4.6/14.1 7/21.2 9.4/28.2
Maximum cont./peak output
power @ 100Vdc [W]
2.6 5.3 8 10.6
Peak current time [sec] 1
Minimum load inductance
@100Vdc [mH]
Can be derated linearly for
lower voltages
Per Module
Control voltage input [Vdc] 24 ±10%
Drive voltage input range [Vdc] 12 – 100 (96 recommended)
Maximum drive voltage [Vdc] (Vin motor) x 88%
Maximum cont. input current
5.2 10.6 16 21.2
Maximum heat dissipation [W]
i = no. of drives
7 + 0.9 x i 7 + 2.1 x i 7 + 3.7 x i 7 + 5.6 x i



Type: three-phase bridge   technology.
PWM frequency: 20 kHz.
Switching method: advanced unipolar PWM.
Control: PI digital filter. PI gains are selected by a four position DIP-switch
or programmed when connected to a PC.
Current loop sampling rate and update rate: 20 kHz.
Programmable current loop bandwidth: up to 4kHz, will vary with tuning & load parameters.
Protection: Over & under voltage, Over current, Over temperature, Phase to phase and phase to ground short (short circuit on one of the motor phases might damage the drive).

Built-in motor phase shortening relays (optional): disconnect the motor from the drive and shorten the phases of the motor.



The module is fed by two power sources. A motor supply and a 24Vdc control supply.
During emergency conditions there is no need to remove the 24Vdc control supply.

Motor Drive Supply
Range: 12Vdc - 100Vdc. Maximum recommended: 96Vdc.
Current rating should be calculated based on actual load.
If regeneration resistor is required, it should be added in parallel to motor supply with 102V shunt activation.

Control Supply
Range: 24Vdc ±10%
Maximum input current / power: 1A /20W without motor brakes.
With two motor brakes: 1.9A /42W
Protection: reverse polarity. 


Motor Type

Two- and three-phase permanent magnet synchronous (DC brushless/AC servo), DC brush, Voice coil, Two- and three-phase stepper (micro-stepping open or closed loop).


Drive-Controller Interface

Current command input: sine wave current commutation commands, ±10V differential, 16 bit resolution.
Offset: <20mV, Bandwidth <5KHz.
Dynamic range control input: 5V, opto-isolated, source. Input current < 7mA.
When 0V, a 10V current command will generate the specified maximum current.
When 5V, a 10V current command will generate 1/8 of the specified maximum current.
Drive On/Off output: TTL, active low @ enable, active high @ disable.
Output current 1mA.
Drive enable input: TTL, active low. Input current: <7mA.
Drive fault output: TTL, active high. Output current 1mA.


STO (Safe Torque Off)

Supports implementation of STO on its carrier board.
See 'Installation and Carrier Board Design' guide for more details

Motor brake control outputs

One per drive, 24V ±20%, source, 0.5A.


Current monitoring analog outputs

Two per drive, for motor phases S and T.
Type: ±10V, differential, 16 bit resolution.
Offset: ±50mV, Max. output load: 10kΩ.


EtherCAT Communication

Used to connect to an ACS motion controller for current loop setup and
tuning purposes.
Two sets of EtherCAT signals: In and Out.



Operating range: 0 to + 40°C
Storage and transportation range: -25 to +60°C
Humidity (operating range): 5% to 90% non-condensing



155 x 85 x 30 mm3



360 gr.




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