1,2 drives, 12-100V, up to 13.3/40A
Single/Dual Axis NanoPWM Drive with ±10V Current Commutation Commands
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
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
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
CE, UL (Pending)
EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.
Continuous/Peak current Sine
|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]
|Peak current time [sec]||1|
Minimum load inductance
Can be derated linearly for
|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
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, Phase to phase and phase to ground short, Over current, Over temperature.
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.
Range: 24Vdc ±10%
Maximum input current / power: 1A /20W without motor brakes.
With two motor brakes: 1.9A /42W
Protection: reverse polarity.
Three phase AC synchronous.
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.
Used to connect to an ACS motion controller for current loop setup and
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