Beckhoff: Servo Drives (AX8000 Series)
AX8000 | Multi-axis servo system
The AX8000 multi-axis servo system greatly simplifies the implementation of multi-channel drive solutions. The required number of 1-channel or 2-channel axis modules are attached to the central supply module. The modules are connected without screws or tools using the built-in AX-Bridge quick connection system, which is based on spring-loaded terminals. The 1-axis and 2-axis modules can optionally be equipped with STO or TwinSAFE (drive-integrated safety functions).
eXtreme Fast Control in the drive
The EtherCAT-based AX8000 multi-axis servo system combines powerful FPGA technology with multi-core ARM processors. The new multi-channel current control technology enables extremely short sampling and response times. The entirely hardware-implemented current controller combines the advantages of analog and digital control technology: reaction to a current deviation from the set point value is possible within 1 µs; the velocity controller cycle time is around 16 µs at a switching frequency of 32 kHz. The processing of EtherCAT process data (actual and setpoint values) is carried out without a processor almost without delay in the hardware, so that the minimum EtherCAT cycle time is only 62.5 µs.
One Cable Technology (OCT)
The AX8000 multi-axis servo system supports OCT, the One Cable Technology for power and feedback. In connection with the servo motors from the AM8000 (standard), AM8500 (increased inertia) and AM8800 (stainless steel) series, the wiring is reduced to the standard motor cable, via which the feedback signals are also transmitted. As in sensorless control, the user no longer has to use an additional feedback cable. All information required for control purposes is transmitted reliably and interference-proof via a digital interface.
Drive-integrated safety functions
The AX8000 with TwinSAFE supports the typical drive-integrated safety functions and fulfills the requirements of DIN EN ISO 13849-1:2008 (Cat. 4, PL e).
stop functions (STO, SOS, SS1, SS2)
speed functions (SLS, SSM, SSR, SMS) with up to 8 speeds
position functions (SLP, SCA, SLI) with reference cams
acceleration functions (SAR, SMA)
rotating direction functions (SDIp, SDIn)
brake function (SBC)
safely limited torque (SLT)
AX8620 | Power supply modules 20 A
A power supply module generates the DC-Link voltage (DC) for the supply of the axis modules and the option modules from the mains voltage. It already contains a mains filter, for which the drive is tested and certified in accordance with EN 61800-3 for Category C3 use.
Any regenerative energy produced, e.g. through strong braking of the motors, can be converted into heat either via the internal brake resistor or via the combination of built-in brake chopper and external brake resistor. Alternatively, the energy can be buffered in the AX8810 capacitor module.
AX8000 supply modules can be used on 1- and 3-phase low-voltage mains supplies.
1-phase mains supplies 100…240 V AC, 50/60 Hz
3-phase mains supplies 3 x 200…3 x 480 V AC, 50/60 Hz
A separate 24 V DC power supply is required in each case.
AX8640 | Power supply modules 40 A
A power supply module generates the DC-Link voltage (DC) for the supply of the axis modules and the option modules from the mains voltage. It already contains a mains filter, for which the drive is tested and certified in accordance with EN 61800-3 for Category C3 use.
Any regenerative energy produced, e.g. through strong braking of the motors, can be converted into heat either via the internal brake resistor or via the combination of built-in brake chopper and external brake resistor. Alternatively, the energy can be buffered in the AX8810 capacitor module.
AX8000 supply modules can be used on 1- and 3-phase low-voltage mains supplies.
1-phase mains supplies 100…240 V AC, 50/60 Hz
3-phase mains supplies 3 x 200…3 x 480 V AC, 50/60 Hz
A separate 24 V DC power supply is required in each case.
AX81xx, AX82xx | Axis modules 1- and 2-channel
An axis module contains the DC-Link and the inverter for supplying the motor. Depending on the required number of axes, the axis modules are attached to the supply module to form the multi-axis servo system. Axis modules with different ratings can be combined in order to enable an optimized design of the individual axes.
Supporting a wide supply voltage range from 100 to 480 V AC, the axis modules can be operated without limitation with any of the supply modules. This flexibility simplifies the implementation of machine configurations for any type of mains supply. The electrical connection is established without tools via the already integrated AX-Bridge: it automatically connects DC-Link, 24 V DC control voltage and communication via EtherCAT between the attached modules. The DC-Link connection enables the exchange of energy during acceleration and braking procedures, where the regenerative brake energy is primarily stored in the common DC-Link. If the energy exceeds the DC-Link capacitance, it can be destroyed via a brake resistor of the supply module.
An AX8810 capacitor module extends the DC-Link capacitance and is particularly suitable in combination with the AX8620-1000 single-phase supply for the support of the DC-Link. It enables energy savings: voltage peaks generated by braking motors are taken up and stored. This makes the activation of the brake resistor mostly unnecessary and helps to reduce power losses. Overall, the use of the capacitor module makes a reduction in the total connected load possible and also a smaller dimensioning of the fuse.
Model No.: AX8000, AX8108-0000, AX8118-0000, AX8206-0000, AX8620-0000, AX8620-1000, AX8640-0000, AX8640-1000, AX8810-0000, AX8810-1000
*Available in Germany, Austria and Switzerland | For all other sales regions: estimated market release 4th quarter 2016