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- Newsgroups: sci.engr
- Path: sparky!uunet!uunet.ca!unixbox!dosgate!dosgate![glen.mead@canrem.com]
- From: "glen mead" <glen.mead@canrem.com>
- Subject: help - tech project
- Message-ID: <1992Oct10.4931.2987@dosgate>
- Reply-To: "glen mead" <glen.mead@canrem.com>
- Organization: Canada Remote Systems
- Distribution: sci
- Date: 10 Oct 92 14:29:02 EST
- Lines: 55
-
- Hi All,
-
- With regards to my original questions regarding the control of a stepper
- motor, I have recently discovered that this is not actually a stepper
- motor but a 3-phase motor. The actual part is a Tohoku Ricoh type
- 7M100200 with ratings of DC24V, 0.2A, 48W. This 3-phase motor is part
- of an optical housing assembly from a laser assembly which also includes
- a laser drive assembly and scanning mechanicals. What I need to know
- is, how to operate and control this stepper motor, how to operate and
- control the laser, and how to replace the laser diode with which
- produces a visible beam. For further project description and 3-phase
- motor pin numbers and names, see below.
-
- Any help would be greatly appreciated. Thanks for any help in advance.
- Comments and suggestions are welcome.
-
- Glen Mead
-
- ---
-
- Project Summary:
-
- By utilizing the optical housing from a laser printer and replacing the
- laser diode with one of a visible wavelength, a display type laser
- device can be constructed providingproper control circuitry is utilized.
- Scanning functions would be provided by mirrors mounted on a 3-phase
- motor assembly and a series of focusing lenses and mirrors. Graphics
- would be generated by turning the laser on and off at specific places
- (determined by the frequency and duty cycle of the control waveform)
- during each scan. Timing of the 3-phase motor and laser would be based
- on a sync pulse generated in the optical housing assembly at the end of
- each scan line.
-
-
- 3-Phase motor pins:
-
- 1 - W-Phase
- 2 - V-Phase
- 3 - U-Phase
- 4 - H-W2
- 5 - H-W1
- 6 - H-V2
- 7 - H-V1
- 8 - H-U2
- 9 - H-U1
- 10 - H-GND
- 11 - H-VCC
- 12 - FG1
- 13 - FG2
-
- NOTE: The H-??? pins are power and output pins for Hall elements,
- something else I could use a hand with. :-)
- --
- Canada Remote Systems - Toronto, Ontario
- World's Largest PCBOARD System - 416-629-7000/629-7044
-