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.

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 V_ppsine/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 2^ndDOUT)
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

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)

标签：Nanopositioning Systems

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