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A-811: High Performance Motion Control With EtherCat Connectivity
The A-811.CE single-axis motion controller from PI is an integrated electronics solution with a controller and servo drive in a compact desktop enclosure. The controller is intended for use with the PIglide air-bearing linear and rotation stages and other PI stages equipped with servomotors and high-resolution encoders.
Compact benchtop device, external AC/DC power supply
Complete-integrated servo-controller with drive
Encoder inputs support incremental (analog sine/cosine) and absolute (BiSS-C, EnDat 2.2) encoders
For voice coil drives, DC motors, and brushless 3-phase motors; quiet PWM drives
Output current up to 10 A continuous/20 A peak
Functional safety: STO (Safe Torque Off)
A-811.CED0x, dimensions in mm. Note that a comma is used in the drawings instead of a decimal point. Image Credit: PI (Physik Instrumente) LP
The typical controller has inputs for both incremental and absolute encoders. The integrated interpolation factor for sine/cosine encoders is up to 65536× (16 bit). The controllers encompass an onboard flash memory for stored motion programs and parameters.
The A-811.CE controller can be operated in a stand-alone mode using stored programs or from an external PC. Programming and initialization require a PC. The entire software package is included in the scope of delivery.
If the controller is purchased with a PIglide air-bearing stage or positioning system, PI will perform servo tuning, startup of the controller, and error calibration, resulting in a full ready-to-use positioning system.
The A-811.CE incorporates the cutting-edge ACS ECMsa Motion Controller with an incorporated servo drive.
Options
Numerous motor current output levels
Specifications
Source: PI (Physik Instrumente) LP
| A-811.CED0x | |
|---|---|
|
Function |
ACS ECMsa controller and servo drive, option of closed-loop servo-control, parameter change in operation. |
|
Version |
Benchtop housing |
|
Motor types |
Brushless DC motors, brushed DC motors, voice coil motors |
|
Number of drive axes |
1 |
| Motion and control | A-811.CED0x |
|---|---|
|
Controller type |
Cascading PIVFF controller structure with loop-shaping filters, advanced feedforward, good disturbance repression, gain scheduling, field-oriented servo control, and space vector modulation |
|
Sampling rate current control |
20kHz |
|
Type of servo drive |
PWM |
|
Encoder |
Supported types: Incremental: Analog 1 Vppsine/cosine with index, differential, 4 x up to 65536x (16 Bit) interpolation, can be adjusted via software Absolute: BiSS-C, EnDat 2.2 |
|
Max. velocity encoder impulses |
Incremental: 500 kHz Absolute: BiSS-C: 10 MHz, EnDat: 16 MHz |
|
Limit switches |
Incremental: 24 V DC, source or sink (preset on delivery); positive and negative limit switches; single-ended, opto-isolated Absolute: n/a |
|
Functional safety |
STO (Safe Torque Off) input SS1 (Safe Stop 1) |
| Interfaces and operation | A-811.CED0x |
|---|---|
|
Digital I/O lines |
2 × input, 24 V DC sinking (1 × usable as a MARK position lock) 2 × output, 24 V DC sourcing or sinking (1 x usable as motor brake output) |
|
Analog I/O lines |
2 × input, differential, 16 bit 2 × output, differential, 10 bit |
|
Output for position event generator (PEG) |
1 × RS-422 differential, 5 V high-speed output for position trigger |
|
Motor brake output |
1 × 24 V DC, 1 A max. sourcing (connected with 2ndDOUT) |
|
Communication interfaces |
Ethernet: TCP/IP (100/1000 Mbps), EtherNet/IP |
|
User software |
ACS SPiiPlus MMI Application Studio (included in the scope of delivery) |
|
Command set |
ACS SPiiPlus ACSPL+ command set (included in the scope of delivery) |
|
Application programming interfaces |
Programming libraries for C/C++, COM, .NET (included in the scope of delivery) |
|
Control rate and EtherCAT clock rate |
2 kHz |
| Electrical properties | A-811.CED0x |
|---|---|
|
Output voltage |
24 to 48 V, depending on the input voltage |
|
Motor output current |
A-811.CED02: 2.5 A continuous operation, 5 A peak A-811.CED05: 5 A continuous operation, 10 A peak |
| Miscellaneous | A-811.CED0x |
|---|---|
|
Cooling |
Fan on the side (continuous operation, constant speed) |
|
Connectors |
D-sub for motor and signal connections |
|
Input voltage |
24 to 48 V DC |
|
Input current |
A-811.CED02: 2 A continuous operation, 4 A peak for 2.5/5 A output current A-811.CED05: 4 A continuous operation, 8 A peak for 5/10 A output current |
|
Operating temperature range |
5 °C to 40 °C |
|
Mass |
1.7 kg |
|
Dimensions |
180 mm × 270 mm × 74 mm (W × L × H) |
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