Control device

Details Control device Control device

1982-07-14

1985-10-29

Dobeck, B.

Electricity: motive power systems

Positional servo systems

With compensating features

318568, 364164, 364188, G05D 23275

Patent

active

045502781

ABSTRACT:
A control unit is provided with a memory unit for storing data representative of errors occurring in the system, as well as the order in which sequential errors occurred and the number of occurrences of the errors. An error "history" may be displayed from these data, to assist in pinpointing the cause of the trouble.

REFERENCES:
patent: 3688099 (1972-08-01), Buscher
patent: 4096989 (1978-06-01), Tawfik
patent: 4130787 (1978-12-01), Allaire et al.
patent: 4176396 (1979-11-01), Howatt
patent: 4305028 (1981-12-01), Kostas et al.
patent: 4327437 (1982-04-01), Gelderloos
patent: 4362977 (1982-12-01), Evans et al.

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