Title:
SERVO CONTROL CIRCUIT
Document Type and Number:
WIPO Patent Application WO/1984/004006
Kind Code:
A1
Abstract:
A servo control circuit, which is employed to drive a servo motor at a commanded speed and torque, is provided with a servo motor voltage supply circuit, a servo motor drive current detection circuit, a servo motor revolution detector, a counter which counts revolution detection pulses therefrom, a processor which controls a current loop in accordance with an external torque command input, and also controls the output voltage of the voltage supply circuit, and a main processor which outputs the torque command. It is possible to omit the counter which is conventionally employed for inputting positional data, since the number of pulses generated during a period T1 for the current loop control is counted and utilized as positional data during a period T2 for the main processor. Therefore, the servo control circuit is advantageous from the viewpoints of both construction and economy, and is applicable to the control of various kinds of DC or AC servo motor.
Inventors:
KURAKAKE MITSUO (JP)
Application Number:
PCT/JP1984/000177
Publication Date:
October 11, 1984
Filing Date:
April 07, 1984
Export Citation:
Assignee:
FANUC LTD (JP)
International Classes:
H02P6/06; G05B19/23; G05D3/12; H02P6/08; H02P6/16; H02P6/17; H02P6/28; (IPC1-7): H02P5/00; G05D3/20; H02P5/34
Foreign References:
| JPS57113786A | 1982-07-15 |
Other References:
Denki Gakkai Kenkyukai Shiryo (Handotai Denryoku Hen Unreadable text enkyukai) SPC-81-14, 28 Unreadable text 981 (28.05.81), Denki Gakkai (Tokyo) Fuku Unreadable text Shoji "Musei Ryushi Dendoki no Digital Seigyo", p. 1-10
Denki Gakkai Kenkyukai Shiryo (Joho Shori Kenkyukai) IP-80-2, 16 May 1980 (16.05.80), Denki Gakkai (Tokyo) Morita Atsushi "Musei Ryushi Dendoki-yo Multiprocessor Hoshiki Digital Seigyokei", p. 11-20
"Yasukawa Denki", Vol. 46, Tsukan No. 177, No. 4, 1982, 10 March 1983 (10.03.83)(Kita Kyushu) Iwagane Takanobu "Microprocessor o mochiita AC Servo Seigyo", p. 260-262
See also references of EP 0141859A4
Denki Gakkai Kenkyukai Shiryo (Joho Shori Kenkyukai) IP-80-2, 16 May 1980 (16.05.80), Denki Gakkai (Tokyo) Morita Atsushi "Musei Ryushi Dendoki-yo Multiprocessor Hoshiki Digital Seigyokei", p. 11-20
"Yasukawa Denki", Vol. 46, Tsukan No. 177, No. 4, 1982, 10 March 1983 (10.03.83)(Kita Kyushu) Iwagane Takanobu "Microprocessor o mochiita AC Servo Seigyo", p. 260-262
See also references of EP 0141859A4
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