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Nanopositioning Controllers - 13949 E-621

LVPZT Piezo Amplifier & Servo-Controller Module with High-Speed RS-232 Interface

Software / GCS Command Set The E-621 controller comeswith Windows™ installation software, DLLs and Lab View™drivers. The command struc-ture of the extensive command set is based on the PI General Command Set (GCS). The GCS was developed by PI to facili- tate the programming and operation of a wide range ofdifferent devices with a com-mon command language, thus reducing the programming effort in the face of complex multi-axis positioning tasks. It is also supported by the E-516Computer Interface Module, and most PI nanopositioningcontrollers and motor con-trollers. For more informationon GCS, see p. 9-28.

Ordering Information

E-621.SR LVPZT Amplifier & Servo-ControllerModule, Strain Gauge Sensor, RS-232 Interface E-621.LR LVPZT Amplifier & Servo-Controller Module, LVDT Sensor, RS-232 Interface E-621.CR LVPZT Amplifier & Servo-Controller Module, Capacitive Sensor, RS-232 E-500.621 Basic Chassis, 19”, for up to 12 Modules, Including Power Supply E-501.621 Basic Chassis, 9.5”, for up to 4 Modules, Including Power Suppy
E-621.SR / .LR Module

Integrated 20-Bit High-Speed RS-232 Interface Network Capability with up to 12 Channels For Capacitive, LVDT and Strain Gauge Position Sensors

Technical Data

GCS (General Command Set) Compatible

ModelsE-621.SR, E-621.LR, E-621.CR FunctionPower amplifier & position servo-control of LVPZTs Channels1

The E-621 is an improvementon the E-610-series modularcontroller/amplifier (see p. 6-34) and offers the full func- tionality of that line. In addi- tion, the E-621 is equipped with an RS-232 interface and com- mand interpreter.

Amplifier

New and FastCommunications Interface

Output voltage-20 to +120 V Maximum output power11 W

The RS-232 interface handlesthe communications with theoutside world. It performs up to300 read or write operations per second and incorporates precision 20-bit D/A and A/D converters for exceptional posi- tional stability and resolution.

Average output power6 W Peak output current <5 ms140 mA

Multi-Axis Network Up to 12 E-621s with any com-bination of capacitive, SGS and LVDT sensors can be net- worked and controlled over asingle RS-232 interface. The dif-ferent modules are connected in parallel (not daisy-chained) over the link. A special chassis (E-500.621) is available for up to 12 E-621 modules. It auto-matically provides the power and network connections to the individual E-621 modules, so no additional wiring is re- quired. Only an additional 10 ms internal bus communica-tions time is required to reach any of the units behind the one actually connected to the host PC.

Average output current60 mACurrent limitationShort-circuit proof Voltage gain10 ±0.1PolarityPositive DC-offset setting0 to +100 V Input Impedance100 k Dimensions7T wide, 3H highOperating voltage12 to 30 VDC, stabilized Operating current2 A RS-232 Interface D/A converter20-bit resolutionA/D converter (sensor)20-bit resolution Baudrate9.6 kBaud – 115.2 kBaud (default 115.2) Wave table64 values, 100 Hz, externally triggered Position Servo-Control Sensor typesCapacitive (E-621.CR),Strain gauge (E-621.SR), LVDT (E-621.LR) Servo characteristicsP-I analog, notch filter Connectors PZT connectorLEMO ERA.00.250.CTL / Sub-D Mix (.CR)Sensor connectorEPL.0S.304.HLN (.SR, .LR / Sub-D Mix (.CR) Analog inputSMB Monitor outputSMB
© PI 1998-2006.Subject to change without notice. This data sheet is superseded by any newrelease. The newest release is available for download at www.pi.ws. Cat 118/R1 05/11/15.0 RS-2329-pin sub-D (male)

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