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ESP301 Series 3 Axis Motion Controller/Driver

ESP301 Series

3 Axis Motion Controller/Driver

1 to 3 axes motion controller using universal driver technology for DC servo and 2-phase stepper motors up to 3A per axis
ESP technology, Newport's exclusive “plug-and-play” compatibility with ESP stages for easy setup
1000x programmable micro-step resolution for ultra-smooth low speed stepper positioning
Synchronized circular/linear interpolation and continuous path contouring for complex motion profiling
USB2.0, RS232 and optional GPIB communications link for easy computer interfacing

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Overview
Specifications
Ordering
Literature & Downloads

The ESP301 controller/driver can drive and control up to three axes of motion using any combination of DC or 2-phase stepper motors up to 3A per axis. This capability enables driving a large selection of Newport stages and actuators. Featuring an integrated manual front panel interface and Newport's unique ESP stage auto-detection and auto-configuration.The ESP301 is the easiest to use controller with excellent functionality at an affordable price.

Technology
The ESP301 uses a 64-bit, floating point, DSP processor for high precision synchronized control. A digital PID-FF (feed-forward) servo loop ensures precise velocity profile tracking and accurate positioning. A 1000x programmable micro-step resolution provides ultra-smooth low-speed stepper positioning capability, and 18-bit DC motor command output ensures improved stability for precision applications.

Motion
The ESP301 provides several modes of positioning including synchronized and non-synchronized point-to-point, jogging, linear or circular interpolation, and continuous path contouring. With electronic gearing, any axis of the ESP301 can be “slaved” to any other axis, even if they have different motor/gear ratios or lead screw pitches. Other sophisticated motion features include on-the-fly position, velocity, or trajectory changes for complex motion and alignment routines. Software limits can be set to improve systems safety. An advanced origin search routine includes encoder index pulse consideration for precision homing. Backlash and linear error compensation eliminate repeatable system errors.

Inputs/Outputs
16 bi-directional digital I/O can be user programmed as either inputs or outputs for internal or external event synchronization. When configured as inputs, they can be used to execute a program or to stop a motion. When configured as outputs, they can monitor the status of a motion to provide a hardware interface for external equipment. An additional watchdog timer and remote interlock are supplied as an invaluable safety feature.

Programming
The ESP301 makes programming complex motions easy using a powerful programming language with over 100 commands. Each ESP301 features a standard USB and RS-232-C communication link for easy computer interfacing. An optional IEEE-488 (GPIB) interface is available for high speed parallel communication. Newport recommends using National Instruments GPIB hardware for full compatibility. Other GPIB products may not provide acceptable performance. 64kB Flash non-volatile user program memory allows for storage of up to 100 user-defined programs for computer independent usage. A complete library of LabVIEW™ drivers covering all ESP301 commands and communication DLL’s covering all the most popular Windows versions are available and continually updated and accessible in the NSTRUCT software. Powerful software utilities reduce start-up time and support application development.

Auto-Configuration
When used with ESP compatible motion devices, the ESP301 motion controller will automatically configure itself, providing true plug-and-play compatibility. PID parameters, motor types and gear ratios are automatically set for you at power up — there are no parameters to set and hence no risk of damage by inappropriate parameter settings. The ESP301 can also be configured to operate non-Newport stages that fit within driver module specifications.

Front panel
ESP301 options include a user-friendly front panel interface providing an intuitive menu system from which you can execute motion programs, initiate manual moves, and configure operating parameters. The position of all axis is displayed in a LCD screen. A digital joystick can provide convenient jog control.

The ESP300-J digital joystick provide convenient manual jog control.

ESP301 Model Specifications

Model	Number of Axis	Computer Interfaces
ESP301-1N	1	USB2.0 (32-bit), RS-232-C
ESP301-1G	1	USB2.0 (32-bit), RS-232-C, IEEE-488-1
ESP301-2N	2	USB2.0(32-bit), RS-232-C
ESP301-2G	2	USB2.0(32-bit), RS-232-C, IEEE-488-1
ESP301-3N	3	USB2.0(32-bit), RS-232-C
ESP301-3G	3	USB2.0(32-bit), RS-232-C, IEEE-488-1

ESP301 General Specifications

Computing Power	400 µs servo cycle up to 3 axes
	64 bits floating point DSP, with a peak performance of 1200 MFLOPS
	Digital PID servo loop with velocity and acceleration feed forward
Motion	Trapezoidal and s-curve velocity profile
	Synchronized and non-synchronized point-to-point
	Jogging, Continuous moves
	3D Linear interpolation, 2D Circular Interpolation
	Master-slave, Electronic gearing
	On-the-fly changes of target position, speed, acceleration, and PID
Contouring	2D Contouring with continuous buffer loading
External Event Synchronization	Program execution depending on TTL I/O status
Operating Modes	Real-time command execution via computer interfaces
	Stand-Alone Execution of Programs
	Front panel manual motion command execution
	Digital joystick (optional)
Programming	100+ intuitive, 2 letter ASCII commands
	Command set includes: User defined units, software limits, home search (with and w/o top zero), linear error and backlash compensation, etc.
	Typical time to send a command and to read the repsonse: RS-232-C: 7-30 ms; USB: 3.5 ms; IEEE-488-1: 1 ms
Software Drivers	Communication DLL for Windows 95/98/2000/NT/ME/XP, example.net (serial communication)
	Drivers for LabView
	Software development tools compatible with Windows 95/98/2000/NT/ME/XP: Setup, PID tuning program, Motion Wizard (used to configure non-ESP compatible stages)
I/O	16 user programmable TTL I/O (programmed in groups of 8)
I/O	“Watchdog” timer and remote interlock
Memory	64KB Flash Non-Volatile User Program Memory (last for approx. 6,000 commands)
Front Panel Display	Backlit LCD display, 4 lines x 20 characters, 21 mm x 70 mm
Motor Control	DC brush motors at 48 V, 3 A max.
	Closed-loop operation
	16-bit DAC resolution
	5 MHz max. encoder input frequency
Stepper Motor Control	2-phase stepper motors at 48 V, 3 A max.
	Open- or closed-loop operation
	10 kHz commutation rate
	1000x max. (programmable) micro-step resolution
Total Available Motor Power	150 W, 48 V, 3 A max per axis
Power Requirements	115/230 V, 50/60 Hz wide input range
Dimensions (W x D x H)	16.9 x 17.2 x 3.0 in. (429.5 x 436.0 x 76.2 mm)
SAT-Weight (kg)	6

*Newport recommends using National Instruments GPIB hardware for full compatibility. Other GPIB products may not provide acceptable performance.

ESP301 Controller

Model	Description	Availability	price raw	Price	Qty. MULTI ADD
ESP301-1G	ESP301 Motor Controller/Driver, 1 axis, w/ GPIB and USB	In Stock	2843	$2,843.00	ADD
ESP301-1N	ESP301 Motor Controller/Driver, 1 axis, USB	In Stock	2439	$2,439.00	ADD
ESP301-2G	ESP301 Motor Controller/Driver, 2 axis, w/ GPIB and USB	In Stock	3403	$3,403.00	ADD
ESP301-2N	ESP301 Motor Controller/Driver, 2 axis, USB	In Stock	2999	$2,999.00	ADD
ESP301-3G	ESP301 Motor Controller/Driver, 3 axis, w/ GPIB and USB	In Stock	3964	$3,964.00	ADD
ESP301-3N	ESP301 Motor Controller/Driver, 3 axis, USB	In Stock	3560	$3,560.00	ADD

ESP301 Accessories

Model	Description	avail raw	Availability	price raw	Price	Qty. MULTI ADD
ESP300-J	Joystick (digital joystick)	0	In Stock	368	$368.00	ADD
ESP300-R	19 in. Rack Mount Brackets	0	In Stock	63	$63.00	ADD
E4738A	3A Driver for ESP301, Stepper and DC Servo					Request Quote

Application Notes

Motion Application Note - Scanning Xray Fluorescence (1.7 MB)

Newport Resource e-Catalogs *

*e-Catalog pages include the most current information available at the time of printing.

ESP301 Series

3 Axis Motion Controller/Driver

ESP301 Model Specifications

ESP301 General Specifications

ESP301 Controller

ESP301 Accessories

Application Notes

Newport Resource e-Catalogs *

Other

Software

Technical References

User Manuals

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