FR2330055A1 - LIMITER OF MEASURING DEVICES OF REGULATED SIZES - Google Patents

LIMITER OF MEASURING DEVICES OF REGULATED SIZES

Info

Publication number
FR2330055A1
FR2330055A1 FR7625788A FR7625788A FR2330055A1 FR 2330055 A1 FR2330055 A1 FR 2330055A1 FR 7625788 A FR7625788 A FR 7625788A FR 7625788 A FR7625788 A FR 7625788A FR 2330055 A1 FR2330055 A1 FR 2330055A1
Authority
FR
France
Prior art keywords
controlled variable
measuring device
auxiliary
controlled
variable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7625788A
Other languages
French (fr)
Other versions
FR2330055B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hagenuk Vorm Neufeldt and Kuhnke GmbH
Original Assignee
Hagenuk Vorm Neufeldt and Kuhnke GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hagenuk Vorm Neufeldt and Kuhnke GmbH filed Critical Hagenuk Vorm Neufeldt and Kuhnke GmbH
Publication of FR2330055A1 publication Critical patent/FR2330055A1/en
Application granted granted Critical
Publication of FR2330055B1 publication Critical patent/FR2330055B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
    • G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P. I., P. I. D.
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements
    • G05B9/02—Safety arrangements electric

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Feedback Control In General (AREA)
  • Control Of Metal Rolling (AREA)
  • Paper (AREA)

Abstract

The arrangement serves for maintaining control in the event of failure of a measuring device (M2) for sensing the controlled variable (x2) in a cascade control loop. The cascade control loop comprises two directly controlled members (S1, S2), the two control devices (R1, R2), the measuring device (M1) for an auxiliary controlled variable (x1) and the measuring device (M2) for the controlled variable (x2) as well as two limiters (B1, B2) for the measured values (m1, m2). In the event of failure of the measuring device (M1) for the auxiliary controlled variable, a fixed value is emitted for the auxiliary reference variable. In the event of failure of the measuring device (M2) for the controlled variable (x2), a switch is made to a fixed auxiliary reference variable (wlf) and the controlled variable (x2) is then controlled only via the auxiliary controlled variable (x1).
FR7625788A 1975-10-31 1976-08-26 LIMITER OF MEASURING DEVICES OF REGULATED SIZES Granted FR2330055A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752548717 DE2548717A1 (en) 1975-10-31 1975-10-31 LIMITING DEVICE FOR REGULAR SIZE MEASURING DEVICES

Publications (2)

Publication Number Publication Date
FR2330055A1 true FR2330055A1 (en) 1977-05-27
FR2330055B1 FR2330055B1 (en) 1981-03-27

Family

ID=5960499

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7625788A Granted FR2330055A1 (en) 1975-10-31 1976-08-26 LIMITER OF MEASURING DEVICES OF REGULATED SIZES

Country Status (6)

Country Link
AT (1) AT351109B (en)
BE (1) BE845910A (en)
CH (1) CH617519A5 (en)
DE (1) DE2548717A1 (en)
FR (1) FR2330055A1 (en)
IT (1) IT1072870B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503891A1 (en) * 1981-04-14 1982-10-15 Uk I Stankov Temp. control system with automatic compensation - for sensor feedback failure, for use with temp. sensitive moulding processes etc.
US4506143A (en) * 1980-07-31 1985-03-19 Ukrainsky Nauchno-Issledovatelsky Institut Stankov I Instrumentov Automatic temperature control device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3101035C2 (en) * 1980-11-11 1983-01-20 Gebrüder Sulzer AG, 8401 Winterthur Control circuit with auxiliary controlled variable
DE3122621C2 (en) * 1981-06-06 1987-04-09 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Monitoring device
DE29612775U1 (en) * 1996-07-23 1997-08-21 Siemens AG, 80333 München Positioner and control valve with such a positioner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700490A (en) * 1969-12-23 1972-10-24 Fuji Photo Film Co Ltd Method of coating by delaying the control signal for operating the coating apparatus
US3845370A (en) * 1973-08-10 1974-10-29 Ibm Credibility testing in sampled-data systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700490A (en) * 1969-12-23 1972-10-24 Fuji Photo Film Co Ltd Method of coating by delaying the control signal for operating the coating apparatus
US3845370A (en) * 1973-08-10 1974-10-29 Ibm Credibility testing in sampled-data systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506143A (en) * 1980-07-31 1985-03-19 Ukrainsky Nauchno-Issledovatelsky Institut Stankov I Instrumentov Automatic temperature control device
FR2503891A1 (en) * 1981-04-14 1982-10-15 Uk I Stankov Temp. control system with automatic compensation - for sensor feedback failure, for use with temp. sensitive moulding processes etc.

Also Published As

Publication number Publication date
CH617519A5 (en) 1980-05-30
DE2548717A1 (en) 1977-05-05
IT1072870B (en) 1985-04-13
BE845910A (en) 1976-12-31
FR2330055B1 (en) 1981-03-27
ATA512276A (en) 1978-12-15
AT351109B (en) 1979-07-10

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Legal Events

Date Code Title Description
ST Notification of lapse