DE4112109A1 - Broken wire indicator e.g. in thyristor feed line - has combination of and/or and retriggerable monostable elements monitoring test signal and driving switching block or warning device - Google Patents
Broken wire indicator e.g. in thyristor feed line - has combination of and/or and retriggerable monostable elements monitoring test signal and driving switching block or warning deviceInfo
- Publication number
- DE4112109A1 DE4112109A1 DE4112109A DE4112109A DE4112109A1 DE 4112109 A1 DE4112109 A1 DE 4112109A1 DE 4112109 A DE4112109 A DE 4112109A DE 4112109 A DE4112109 A DE 4112109A DE 4112109 A1 DE4112109 A1 DE 4112109A1
- Authority
- DE
- Germany
- Prior art keywords
- thyristor
- gate
- switching block
- retriggerable monostable
- warning device
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
Abstract
Description
Die Erfindung betrifft eine Anordnung zur Meldung eines Drahtbruchs nach dem Oberbegriff des Patentanspruchs.The invention relates to an arrangement for reporting a wire break according to the preamble of the claim.
Bei Gleichstromantrieben, bei denen Thyristorbrücken angewendet wer den, ist es notwendig zu gewährleisten, daß die Thyristoren genau für die vorgesehene Zeit und in der richtigen Reihenfolge Strom füh ren bzw. stromlos sind. Ein Drahtbruch an einer der Zuleitungen zu den Thyristoranschlüssen führt zu einer Störung, die unverzüglich zu melden ist. Das gilt auch für den Ausfall des Kopplungsgliedes zur Potentialtrennung zwischen dem Gleichstromantrieb und der Thyristor brücke. Als Kopplungsglied wird vorzugsweise ein Optokoppler verwen det.For DC drives where thyristor bridges are used that, it is necessary to ensure that the thyristors are accurate for the scheduled time and in the correct order Ren or are de-energized. A broken wire on one of the supply lines too the thyristor leads to a fault that immediately leads to is to report. This also applies to the failure of the coupling link Electrical isolation between the DC drive and the thyristor bridge. An optocoupler is preferably used as the coupling element det.
Die Aufgabe besteht daher darin, eine Anordnung zur Meldung eines Drahtbruchs in den Zuleitungen von Thyristoren einer Thyristorbrücke bzw. des Ausfalls eines Optokopplers zur Potentialtrennung in Gleich stromantrieben zu schaffen, die eine sichere Erkennung eines Störzu standes ermöglicht bzw. eine Umschaltsperre auslöst.The task is therefore to create an arrangement for reporting a Wire break in the leads of thyristors of a thyristor bridge or the failure of an optocoupler for potential isolation in the same to create electric drives that reliably detect a fault enabled or triggers a switchover lock.
Die Aufgabe wird nach der Erfindung durch die im Patentanspruch ange gebenen Maßnahmen gelöst. The object is according to the invention by the in claim given measures resolved.
Die Erfindung wird im folgenden an Hand der Zeichnung an einem Aus führungsbeispiel näher erläutert.The invention is based on the drawing of an off management example explained in more detail.
Aus Fig. 1 ist das Schaltbild der Anordnung nach der Erfindung zu er sehen. Von einem Optokoppler 1 werden Signale, deren Dauer und Form in der Fig. 2 in Zeile A dargestellt sind, eingespeist. Sie werden direkt einem ODER-Glied 2 zugeleitet, das mit einer nicht dargestell ten Umschaltsperreinrichtung verbunden ist.From Fig. 1 the circuit diagram of the arrangement according to the invention can be seen. Signals, the duration and shape of which are shown in line A in FIG. 2, are fed in by an optocoupler 1 . You are fed directly to an OR gate 2 , which is connected to a switching lock device, not shown.
Gleichzeitig werden die Signale an eine beispielsweise auf 50 µs einge stellte retriggerbare monostabile Kippstufe 3 und von dieser an den inversen Eingang eines UND-Gliedes 4 geleitet. An einem zweiten Ein gang dieses UND-Gliedes 4 liegen die Signale direkt an. Vom UND-Glied 4 werden dann Signale abgegeben, die bezüglich Zeitpunkt und Dauer denen in Fig. 2, Zeile B entsprechen.At the same time, the signals are sent to a retriggerable monostable multivibrator 3, for example set to 50 microseconds, and from there to the inverse input of an AND gate 4 . The signals are directly present at a second input of this AND gate 4 . The AND gate 4 then emits signals which correspond to those in FIG. 2, line B in terms of time and duration.
Die Signale gemäß Zeile B werden an einen inversen Eingang einer weiteren retriggerbaren monostabilen Kippstufe 5 gegeben, die bei spielsweise auf 10 µs eingestellt ist, die sie zu Signalen gemäß Fig. 2, Zeile C umformt. An einem weiteren UND-Glied 6 kommen an je einem in versen Eingang die Signale gemäß Fig. 2, Zeile B und Fig. 2, Zeile C an.The signals according to line B are given to an inverse input of a further retriggerable monostable multivibrator 5 , which is set at 10 μs for example, which it converts into signals according to FIG. 2, line C. The signals according to FIG. 2, line B and FIG. 2, line C arrive at a further AND gate 6 at a respective input in the opposite direction.
Das UND-Glied 6 ist mit dem ODER-Glied 2 und einem weiteren ODER-Glied 7 verbunden und leitet diesen beiden ODER-Gliedern Signale zu gemäß Fig. 2, Zeile D. Das ODER-Glied 7, das auch die Signale von den ande ren Thyristoren der Thyristorbrücke erhält, ist mit einer nicht dar gestellten Meldeeinrichtung verbunden, die gegebenenfalls einen Draht bruch oder den Ausfall des Optokopplers 1 anzeigt. Vom ODER-Glied 2 wird ein Signal gemäß Fig. 2, Zeile E an die Umschaltsperreinrichtung gegeben, das entweder aus dem Signal gemäß Fig. 2, Zeile A oder dem Signal gemäß Fig. 2, Zeile D abgeleitet ist.The AND gate 6 is connected to the OR gate 2 and a further OR gate 7 and passes signals to these two OR gates according to FIG. 2, line D. The OR gate 7 , which also the signals from the others Ren thyristors the thyristor bridge receives is connected to a not shown signaling device, which may break a wire or indicates the failure of the optocoupler 1 . A signal according to FIG. 2, line E is sent from the OR gate 2 to the switch-over blocking device, which is derived either from the signal according to FIG. 2, line A or the signal according to FIG. 2, line D.
Der Vorteil der Anordnung nach der Erfindung besteht darin, daß ein Drahtbruch oder der Ausfall des Kopplungsgliedes zur Potentialtrennung sicher und unverzüglich angezeigt wird.The advantage of the arrangement according to the invention is that a Broken wire or failure of the coupling element for electrical isolation is displayed safely and immediately.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4112109A DE4112109A1 (en) | 1991-04-11 | 1991-04-11 | Broken wire indicator e.g. in thyristor feed line - has combination of and/or and retriggerable monostable elements monitoring test signal and driving switching block or warning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4112109A DE4112109A1 (en) | 1991-04-11 | 1991-04-11 | Broken wire indicator e.g. in thyristor feed line - has combination of and/or and retriggerable monostable elements monitoring test signal and driving switching block or warning device |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4112109A1 true DE4112109A1 (en) | 1992-10-15 |
DE4112109C2 DE4112109C2 (en) | 1993-01-28 |
Family
ID=6429514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4112109A Granted DE4112109A1 (en) | 1991-04-11 | 1991-04-11 | Broken wire indicator e.g. in thyristor feed line - has combination of and/or and retriggerable monostable elements monitoring test signal and driving switching block or warning device |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4112109A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29505412U1 (en) * | 1995-03-30 | 1996-05-02 | Siemens Ag | Device for electrically isolated cable break detection in digital transmission links with symmetrical transmission, in particular for digital position transducers |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3906304A1 (en) * | 1989-02-28 | 1990-08-30 | Siemens Ag | Device for digitally monitoring feed lines |
-
1991
- 1991-04-11 DE DE4112109A patent/DE4112109A1/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3906304A1 (en) * | 1989-02-28 | 1990-08-30 | Siemens Ag | Device for digitally monitoring feed lines |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29505412U1 (en) * | 1995-03-30 | 1996-05-02 | Siemens Ag | Device for electrically isolated cable break detection in digital transmission links with symmetrical transmission, in particular for digital position transducers |
Also Published As
Publication number | Publication date |
---|---|
DE4112109C2 (en) | 1993-01-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3511968A1 (en) | METHOD FOR SERIAL ERROR CODE TRANSMISSION AND CIRCUIT ARRANGEMENT FOR ITS IMPLEMENTATION | |
DE102005037047B3 (en) | Building control and hazard alert system, has bus substation circuit lying between parallely connected direct current connections of bridges and measuring voltage ratios and their polarity at alternating voltage inputs of bridges | |
EP0429972B1 (en) | Apparatus and method for monitoring navigation equipment | |
DE19501373A1 (en) | Semiconductor composite element and method for detecting fault states in an inverter device containing the element | |
EP0981056A2 (en) | Method for determining the condition of a pump | |
DE3207993A1 (en) | TWO-WAY TWO-WAY FIRE DETECTOR | |
DE3521164A1 (en) | MONITORING DEVICE | |
DE3715478C2 (en) | ||
EP3819162B1 (en) | Traction energy supply system and method for monitoring the integrity of at least one conductor of a return line for the traction energy | |
DE3541549C2 (en) | ||
DE4112109A1 (en) | Broken wire indicator e.g. in thyristor feed line - has combination of and/or and retriggerable monostable elements monitoring test signal and driving switching block or warning device | |
DE19906932B4 (en) | Binary | |
EP0924528A1 (en) | Electronic device for diagnosing faults in electrical systems | |
DE2932270B1 (en) | Circuit arrangement for reliable relay control | |
EP0500201B1 (en) | Circuit for monitoring alternating current supplied signal lamps | |
EP3899558A1 (en) | Method and testing device | |
DE2614748A1 (en) | Circuit to monitor function of indirectly acting switch - having reversing switch assigned to each switch position formed from 2 diodes in antiparallel | |
DE3001352C2 (en) | Diagnostic device in relay interlockings for testing assemblies during operation | |
DE1954910C3 (en) | Arrangement for displaying a defect in decoupling diodes in a matrix | |
DE2162040C3 (en) | Circuit arrangement for detecting line short-circuits | |
DE2047147A1 (en) | Device for monitoring track sections for railway systems | |
DE913910C (en) | Switching and monitoring device for signal systems, especially for overhead warning signal systems | |
DE2204596A1 (en) | CIRCUIT ARRANGEMENT FOR MONITORING THE OUTPUT SIGNAL VOLTAGE FROM SIGNALS | |
DE4221779A1 (en) | Notification system | |
DE2910236A1 (en) | Test system for subassemblies in telephone exchange - compares outputs of pairs of identical synchronised subassemblies to detect differences |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: CEGELEC AEG ANLAGEN UND ANTRIEBSSYSTEME GMBH, 1227 |
|
8339 | Ceased/non-payment of the annual fee |