Operation of a general purpose stepping motor-encoder positioning subsystem at the National Synchrotron Light Source

Conference · Fri Nov 01 00:00:00 EST 1985

OSTI ID:6049823

Stubblefield, F W

Four copies of a general purpose subsystem for mechanical positioning of detectors, samples, and beam line optical elements which constitute experiments at the National Synchrotron Light Source facility of Brookhaven National Laboratory have been constructed and placed into operation. Construction of a fifth subsystem unit is nearing completion. The subsystems affect mechanical positioning by controlling a set of stepping motor-encoder pairs. The units are general purpose in the sense that they receive commands over a 9600 baud asynchronous serial line compatible with the RS-232-C electrical signal standard, generate TTL-compatible streams of stepping pulses which can be used with a wide variety of stepping motors, and read back position values from a number of different types and models of position encoder. The basic structure of the motor controller subsystem is briefly reviewed. Additions to the subsystem made in response to problems indicated by actual operation of the four installed units are described in more detail.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6049823
• Report Number(s): BNL-37319; CONF-851009-43; ON: DE86004353
• Resource Relation: Conference: IEEE nuclear science symposium, San Francisco, CA, USA, 23 Oct 1985
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
NSLS
POSITIONING
CONTROL EQUIPMENT
ELECTRIC MOTORS
LOGIC CIRCUITS
OPERATION
RADIATION DETECTORS
SAMPLE HOLDERS
ACCELERATORS
CYCLIC ACCELERATORS
ELECTRONIC CIRCUITS
EQUIPMENT
MEASURING INSTRUMENTS
MOTORS
RADIATION SOURCES
SYNCHROTRON RADIATION SOURCES
SYNCHROTRONS
430303* - Particle Accelerators- Experimental Facilities & Equipment