The PI A-82× motion controller series provides a fully integrated electronics solution in a small 4-U-high 19-inch rack unit, including a controller, drives, and power supply.
Features
- Quiet PWM drives, with optional NanoPWM high-performance drive module
- Encoder inputs support sine/cosine and BiSS-C
- 10 A continuous current/20 A peak output current per axis
- 4, 6, or 8 high-performance motion axes
- Fully integrated closed-loop servo control, amplifier module, and power supplies
- For voice coil drives, DC motors, and brushless 3-phase motors
A-82x, dimensions in mm. Image Credit: PI (Physik Instrumente) LP
The A-82× controllers are created and enhanced with PIglide air-bearing stages with high-resolution encoders, direct drive linear, and rotation servo motors. Modern ACS SPiiPlusEC motion controller and EtherCAT master are included in the A-82× motion controller.
Absolute encoders that employ the BiSS-C data protocol and inputs for incremental sine and cosine are standard options.
A 16384× integrated interpolation factor is included for sine/cosine encoder support. All controllers have built-in flash memory that can store motion programs and settings.
The A-82× controllers can be operated independently using pre-stored programs or under external PC control. For programming and starting, a PC is needed. The controller comes with all software.
The servo tuning, controller starting, and error calibration will all be handled by PI if the controller is purchased along with a PIglide air-bearing stage or positioning system. This will result in a fully functional, ready-to-use positioning system.
The A-824.2N×00 models incorporate ACS’s NanoPWM technology. For difficult positioning applications, they provide the best feasible solution: subnanometer position holding, tracking errors that are only a few nanometers, and ideal velocity constancy.
A real substitute for linear drives is nanoPWM since it offers comparable performance at a lower cost and requires less system space overall.
Options and Upgrades
- Absolute encoders or incremental encoders (which can be combined for all of the controller’s axes by customer specifications)
- G-Code programming
- Input shaping
- Upgrade to ServoBoost™. Better, more consistent servo performance that is insensitive to noise or system changes
- Upgrade to ServoBoost™ PLUS. Increases position stability and velocity constancy
- EtherCAT provides additional control axes for external drives
- Alternative customized packaging for OEM setups
Specifications
Source: PI (Physik Instrumente) LP
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A-824.21x00 |
A-824.2Nx00 |
A-826.21x00 |
A-828.21x00 |
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Number of drive axes
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4
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4
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6
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8
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Number of controller axes
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8
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8
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16
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16
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Controller type
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Closed-loop servo control (PID), parameter changing during operation
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Closed-loop servo control (PID), parameter changing during operation
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Closed-loop servo control (PID), parameter changing during operation
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Closed-loop servo control (PID), parameter changing during operation
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Servo-frequency position control
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10 kHz
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10 kHz
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10 kHz
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10 kHz
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Servo frequency current control
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20 kHz
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20 kHz
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20 kHz
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20 kHz
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EtherCAT cycle time, frequency profile generator
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5 kHz
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5 kHz
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4 kHz
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4 kHz
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Trajectory profiles
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Point-to-point, jog, s-curve, interpolated coordinated multi-axis profiles
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Point-to-point, jog, s-curve, interpolated coordinated multi-axis profiles
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Point-to-point, jog, s-curve, interpolated coordinated multi-axis profiles
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Point-to-point, jog, s-curve, interpolated coordinated multi-axis profiles
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Cooling
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Fan on the side (continuous operation, constant speed)
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Fan on the side (continuous operation, constant speed)
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Fan on the side (continuous operation, constant speed)
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Fan on the side (continuous operation, constant speed)
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Drive type
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PWM
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NanoPWM
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PWM
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PWM
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Motor types
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Voice coil
Brushed DC motor
Brushless 3-phase motor with sine commutation
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Voice coil
Brushed DC motor
Brushless 3-phase motor with sine commutation
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Voice coil
Brushed DC motor
Brushless 3-phase motor with sine commutation
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Voice coil
Brushed DC motor
Brushless 3-phase motor with sine commutation
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Encoder options (factory default)
(Can be configured individually for combinations according to customer specifications)
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Incremental sine/cosine (1 Vpp)
A/B quadrature (RS-422) (on request),
Absolute encoder BiSS-C
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Incremental sine/cosine (1 Vpp)
A/B quadrature (RS-422) (on request),
Absolute encoder BiSS-C
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Incremental sine/cosine (1 Vpp)
A/B quadrature (RS-422) (on request),
Absolute encoder BiSS-C
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Incremental sine/cosine (1 Vpp)
A/B quadrature (RS-422) (on request),
Absolute encoder BiSS-C
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Interpolation factor sine/cosine encoder
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4x to 16384x (can be adjusted by software)
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4x to 65532x (can be adjusted by software)
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4x to 16384x (can be adjusted by software)
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4x to 16384x (can be adjusted by software)
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Output voltage
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72 V DC
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96 V DC
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72 V DC
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72 V DC
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Output current (per axis)
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10 A continuous operation, 20 A peak (<1 s)
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6.6 A continuous operation, 20 A peak (<1 s)
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10 A continuous operation, 20 A peak (<1 s)
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10 A continuous operation, 20 A peak (<1 s)
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Output power (total)
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1100 W continuous operation
2300 W peak
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1500 W continuous operation
3000 W peak
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1500 W continuous operation
3000 W peak
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1500 W continuous operation
3000 W peak
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| Interfaces |
A-82x.21x00 |
A-824.2Nx00 |
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Communication
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Ethernet: TCP/IP, 100/1000 Mbps
Ethernet/IP
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Ethernet: TCP/IP, 100/1000 Mbps
Ethernet/IP
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User I/O (without reference and limit switch)
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4x digital input, 24 V DC, sink
3x digital output, 24 V DC, source
2x analog input, differential, 12-bit
2x analog output, differential, 10-bit
4x RS-422 high-speed output for position trigger (PEG)
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4x digital input, 24 V DC, sink
4x digital output, 24 V DC, source
2x analog input, differential, 12-bit
2x analog output, differential, 10-bit
4x RS-422 high-speed output for position trigger (PEG)
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Interlock / motion-stop
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1x input, 24 V DC
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2x input, 24 V DC
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Connector interface
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Rear panel connectors
D-sub for motor and signal connections
IEC 60320 type C20 for power supply (power cord with NEMA L6-20P plug in the scope of delivery)
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Rear panel connectors
D-sub for motor and signal connections
IEC 60320 type C20 for power supply (power cord with NEMA L6-20P plug in the scope of delivery)
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| Miscellaneous |
A-824.2x00 |
A-824.2Nx00 |
A-826.21x00 |
A-828.21x00 |
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Power supply
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200 - 240 V AC, single phase, 50-60 Hz
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200 - 240 V AC, single phase, 50-60 Hz
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200 - 240 V AC, single phase, 50-60 Hz
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200 - 240 V AC, single phase, 50-60 Hz
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Mass (approx.)
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13.6 kg
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15.7 kg
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14.4 kg
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15.2 kg
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