DE102007041972B3 - Device for controlling a motor-driven switch drive for a switching device with integrated control unit - Google Patents

Abstract

The invention relates to a control unit and a device for controlling a switch drive for a switching device, in particular for a three-position disconnector of a high or medium voltage switchgear, wherein a control and / or reporting unit (1) with at least one universal adapter element (3.1 to 3.n ) is formed as an integrated unit. In this case, the control unit (4) is designed as an integrated layer circuit, which is applied to a carrier unit designed as a printed circuit board (adapter element 3.1).

Description

The The invention relates to a control unit and a device for controlling a motor-driven switch drive for a switching device of a Switchgear, in particular a three-position disconnector High or medium voltage switchgear.

A such device is z. B. for the electrical control of a motor-driven Switch drive, z. B. a jump, jump memory or crawl drive, for one Three-position disconnector known. The device for control serves both the change and thus the control or switching of the switching device of an actual state in a desired Target state as well as a locking and reporting of switching operations. Includes the device for electrical control usually a control unit with electronic, electromechanical and / or electromagnetic components such as B. auxiliary contactors, Timing relay, bridge rectifier and limit switches. About that In addition, the device comprises an electrical reporting unit, for. B. an auxiliary switch, via the disturbances, Operating conditions, Switchgear positions, be reported. Both the off control unit and auxiliary switch formed device as well as the separate control unit and the Separate auxiliary switches are on a DIN rail or a plug-in module mounted and usually cabled separately from each other.

To the Connection of the components and the auxiliary switch are in general Single cores provided, if necessary, via tabs and wire end sleeves the respective component or the auxiliary switch are connected. Such individual connections for the Components and the auxiliary switch lead at one Switch drive to a variety of different terminals and Wirings.

hereby can the functional test the device for control and the individual control unit only in the context of a final examination, d. H. in the assembled state of the device, take place since both the switch drive and the controller as well as within the controller, the control unit and the reporting unit electrically and possibly spatially are separated from each other and only by wiring electrical Connections are made, which allow a functional test.

From the DE 10 2005 035 809 A1 An electronic component is known which has at least one wired electronic component and at least one control unit on a ceramic circuit carrier. The control unit is applied to the circuit carrier as an integrated layer circuit.

From the DE 42 09 167 A1 In addition, a switching and monitoring unit for electric drives is known, the semiconductor switching elements are provided, which are arranged directly on the electric drive.

task The present invention is a device for controlling a switch drive for a switching device specify a switchgear, which is simple and in which the wiring effort is significantly reduced.

Regarding The device according to the invention by the specified in claim 1 Characteristics solved.

advantageous Further developments of the invention are the subject of the dependent claims.

The inventive control unit to control an over a drive motor operated switch drive for a switching device is as an integrated layer circuit formed on a as Printed circuit board formed carrier unit is applied.

Of the The basic idea of the invention is based on the consideration that for the reduction the wiring of the control unit this compact and universal should be. For this purpose, the control unit is as a vorfertigbare integrated layer circuit formed, the discrete and passive Components that act as a layer circuit on the circuit board, which one or both sides be equipped is, are upset. Due to the integrated structure of the control unit This is very compact and has small dimensions on. The application on a printed circuit board with one or both sides arranged conductor tracks allows in a simple way the internal wiring of the control unit, so that elaborate wiring are avoided during installation of the control unit. So just have to still wired the external electrical connection connections become. About that In addition, the control unit can be connected separately before connecting external Connections to functionality, in particular to control and reporting functions, checked become.

In a possible embodiment includes the integrated layer circuit as discrete components at least one microprocessor and display elements and as semiconductor circuits trained control modules as well as a semiconductor circuit trained H-bridge circuit and as passive components printed conductors, insulations, connections, switching elements (Relay contacts), capacitors. Through the use of discrete components is a simple and compact and programmable construction of the Control unit allows.

there forms the H-bridge circuit expediently an internal switching part, by which a load circuit on and off is and the drive motor as a load with respect to the reversal of direction is umpolbar. The respective display element is for example as formed a light emitting diode. Is for example in the load circuit Error occurred, so can by means of the controllable display element this error can be recognized by colored continuous light or flashing light be made. About that In addition, by means of the or the display elements an incorrect direction of rotation of the drive motor, a missing load voltage and / or a missing one feedback can be displayed by an auxiliary switch.

Depending on the function and design of the switching device, one of the connections may be a supply connection for one load circuit and another connection a supply connection for a control circuit. The supply connections are galvanically isolated. For this purpose, the supply terminals each designed as a relay contact switching element and a voltage converter, z. As inverter, upstream. For galvanic isolation of the circuits, the respective voltage transformer ( 16 . 17 ) is preferably designed as an AC / DC and DC / DC inverter for a wide voltage range of 24 V DC to 220 V DC and 110 V AC to 230 V AC. Also, any intermediate voltage is adjustable.

The the switching or switching circuit switching element is preferably at least over one of them as binary inputs trained connections switchable. Preferably, the respective switching element is after switching by means of an auxiliary winding of the internal switching power supply itself trained trained.

In addition, can the control unit designed as a semiconductor circuit monitoring module for self-monitoring exhibit. The monitoring module switches in the event of an error, the supply of the H-bridge circuit and the switching element of the load circuit.

Furthermore are feedback times by means of the microprocessor and the control modules of switching operations, z. As the supply circuits and / or the switching device, free programmable. The separate monitoring of the response times of the switching operations serves to protect the mechanics of the switch drive and the drive motor. About that In addition, by the programmable controller, the motor current at Blocked drive motor are limited in time. Thus, additional motor protection switch or circuit breakers to protect the drive motor omitted.

The Invention is particularly for a device for controlling the switch drive useful, which as an integrated control and / or reporting unit with at least a universal adapter element is formed. To the mechanical and electrical connection of the control unit and / or the reporting unit serve the adapter elements, which are designed as printed circuit boards are and their tracks the internal wiring of the integrated Form building unit. Depending on the type and structure of the switch drive can the device for controlling a manual drive only one integrated message unit with attached to this adapter elements include. In a motorized switch drive includes the device the integrated control and reporting unit with adapter elements. The control unit is for all drive variants, jump, jump memory or creep drive equal.

In a possible embodiment includes the integrated control and / or reporting unit as a reporting unit or position indicator a switch unit, at least two Adapter elements are arranged. Thus, the switch unit is in the unit integrated. One of the adapter elements is preferred designed for receiving the control unit. The other adapter element serves to accommodate at least one connection element and is ever designed according to the type and structure of the connection element. The respective adapter element preferably separates the switch unit and the control unit and / or the switch unit and the connection element.

In a particularly simple embodiment is the adapter element as an electrically insulating carrier unit, in particular as a printed circuit board formed. Training the adapter element as a printed circuit board allows in a particularly simple Way the integration of the control unit as electronic Circuit. By forming the carrier unit as printed circuit boards can prefabricated the internal wiring of the control and / or reporting unit become. For this purpose, the circuit board is preferably on both sides with conductor tracks Mistake. In this case, the tracks for the same current carrying capacity as formed the contacts of the switch unit.

Preferably is the control unit as an integrated circuit and / or electronic and / or electromechanical circuit applied to the carrier unit. hereby is a particularly compact unit that allows through on the support unit applied connection lines for connections of the components the control unit conventional Single cores and a resulting high wiring effort for the control unit safely avoided.

Depending on the structure and function of the switching device, the control unit can be constructed differently be. The control unit expediently comprises two separate supply connections for supplying units arranged in the load circuit and units arranged in the control circuit. For the supply of the load circuit can be dispensed with a switching power supply, if z. B. an H-bridge circuit for controlling the motor rotation direction is dimensioned by means of corresponding switching transistors, that the switching power supply is no longer required. In this case, the voltage variance of the rated voltage for different drive motors of the switch drive is maintained. The two supply connections and the associated power supplies are separated in the control unit and, for example, separately protected externally. The power supply for the control circuit and the load circuit is in a wide voltage range with control voltages for DC voltages of 24 V, 48 V, 60 V, 110 V, 220 V or AC voltages of 110 V, 230 V. The internal power supply of the control unit, for example with 12 V DC is generated from the control voltage of the switching device via an internal switching power supply.

at Failure of one of the supply connections is by means of the control unit the drive motor of the switch drive can be switched off and the associated switching device, eg. B. the three-position disconnector or circuit breaker, lockable. At z. B. recurring tension of the drive motor may not automatically without Restart command input. Occurs depending on the type of drive motor no internal feedback from the switch unit - the Auxiliary switch - within a predetermined time, a fault message is issued. there will be for one Creep drive of the drive motor after approx. 8 s and for one Jump or jump memory drive also after about 8 s a fault message output.

In a further embodiment locks or locks the control unit for specifiable information the associated Switchgear, z. B. a three-position disconnector, a circuit breaker, an earth electrode.

Preferably the connection element is designed as a connector. Of the Connection to the control and / or reporting unit can thereby be prefabricated pluggable harnesses done so no further wiring required are because the internal wiring of the control and / or reporting unit on the prefabricated, designed as PCB carrier units the adapter elements takes place.

The Switch unit is expediently as an auxiliary switch with a predetermined number of levels of position educated. Depending on the structure of the associated switching device can the auxiliary switch is an 8-level or 14-level auxiliary switch 6 or 12 freely available Contact levels for normally closed and NO functions act. Depending on the structure of the auxiliary switch is the associated connector or connector on an 8-level auxiliary switch as a 2 × 22-pin connector and in a 14-level auxiliary switch, for example, as a 2 × 22-pole and a 2 × 10 pin Plug connector executed.

The particular advantages of the invention are that by the integrated training of the control unit in itself as an integrated layer circuit and the combined control and / or Message unit as an integrated unit with prefabricated and the internal wiring realizing adapter elements a simple prefabricated and testable as a module Motor control is given in a compact design at the same time. Elaborate single wiring are safely avoided. In this case, the control unit is through the adapter elements separable from the message unit with the auxiliary switch. This can the control unit without wiring and regardless of Switches type be replaced. About that addition, the test and wiring costs of both the control unit and the combined Control and / or reporting unit significantly reduced because internal wiring prefabricated and only external connection wiring, z. B. over a plug-in, mechanically prefabricated harness, made have to. Furthermore The life of the unit is due to automatic shutdown clearly increased. In this case, in the input filter circuit, a capacitor for charge retention with the control unit switched off, constantly on a supply voltage issue. By training the control unit as an integrated Shift switching does not consume these in the switched-off state Energy, so no power provided in the off state must become. Thus, the power loss is largely completely reduced.

embodiments The invention will be explained in more detail with reference to drawings. Showing:

1 1 is a schematic side view of an exemplary embodiment of a control and / or reporting unit designed as an integrated structural unit with adapter elements in the assembled state;

2 schematically an embodiment of a control unit with associated terminals,

3 schematically an embodiment of a circuit configuration of the control unit to the associated terminals,

4 schematically in exploded view an embodiment of an integrated unit with a head-mounted on a centrally located 8-level auxiliary switch head unit in longitudinal section,

5 schematically the integrated unit according to 4 in a plan view of the head-mounted on the auxiliary switch control unit,

6 schematically in longitudinal section an embodiment of an integrated unit with a head-mounted on a centrally arranged 14-level auxiliary switch control unit, and

7 schematically the integrated unit according to 6 in plan view of the head side placed on the auxiliary switch control unit.

each other corresponding parts are in all figures with the same reference numerals Mistake.

1 shows schematically an embodiment of a trained as an integrated unit control and / or reporting unit 1 , The control and / or reporting unit 1 is used to control a switch drive for a switching device, here a high or medium voltage switchgear with three switching poles, z. B. a three-position disconnector, is.

The control and / or reporting unit 1 comprises as a central component designed as an auxiliary switch switch unit 2. The switch unit 2 serves the feedback of operating positions of the switching device. In this case, the switch unit 2 include multiple levels of responsibility and accordingly generate the number of levels of position a variety of operating position messages.

On the switch unit 2 is depending on the function and structure of the control and / or reporting unit 1 and the switch drive switchable switching device a corresponding number of universal adapter elements 3.1 to 3.n attachable, in particular attachable. The adapter elements 3.1 to 3.n are expediently designed as an electrically insulating carrier unit, which is preferably for prefabrication of the internal wiring of the control and / or reporting unit 1 is designed as a one or both sides provided with conductor tracks printed circuit board. Here are the adapter elements 3.1 to 3.n such on the switch unit 2 be placed, that their contacts with traces of the adapter elements 3.1 to 3.n contact electrically. For example, the adapter elements 3.1 to 3.n each provided with female headers, in which pins or pin headers of the switch unit 2 intervention.

To control or query the contacts of the switch unit 2 are the adapter elements 3.1 to 3.n trained accordingly. For example, one of the adapter elements 3.1 to 3.n , the head side on the switch unit 2 attached adapter element 3.1 , with a control unit 4 provided as an integrated circuit and / or electronic circuit with electromechanical, electromagnetic and electronic components on the adapter element 3.1 is applied. The components of the control unit 4 connected via the conductor tracks of the circuit board, so that the control unit 4 can be prefabricated for the switch drive and the switching device. This allows the prefabricated control unit 4 be tested for their functionality in a simple manner before final assembly. Also, the control unit 4 be arranged in an alternative embodiment on a separate circuit board, which then via a female-to-male connection to the associated adapter element 3.1 is pluggable.

The other adapter elements 3.2 and 3.3 serve in the embodiment of the inclusion of connection elements 5 For example, as a connector or connector for receiving prefabricated wiring harnesses that are easy in the connection elements 5 are pluggable, are formed. Depending on the nature and structure and function of the switch drive and the associated switching device, the respective connection element 5 vary in number of connection poles.

2 schematically shows an embodiment of a control unit 4 with associated connections A1 to Am. The control unit 4 is there like in 3 shown in detail as an integrated layer circuit.

The terminals A1 and A2 are supply terminals and are hereinafter referred to as supply terminals A1 and A2. In this case, the supply connection A1 serves for the supply of units arranged in a control circuit SK, and the supply connection A2 for the supply of units arranged in the load circuit LK. The terminals A3 serve to control the direction of motor rotation of a drive motor M for the switch drive. The ports A4 are binary inputs, z. B. Locking connections, in particular potential-free Relaisein- / - outputs to higher-level equipment, such as "reverse lock circuit breaker", "input other locks", or releases to the switching action, such as "disconnector release", "earthing enable" or "release for three-position disconnector, if circuit breaker is over". The A4 connections can be switched with different voltages from 24 V DC to 220 V DC (eg 48 V DC, 60 V DC, 110 V DC, 220 V DC) or 110 V AC, 230 V AC. The connections A5 are potential-free outputs, such as binary signal outputs z. B. "fault message", "lock too high Neten resources, eg. "Circuit breaker", "service and programming interface", "self-monitoring" (= watchdog), the terminals A6 are further binary inputs with voltages from 24 V DC to 220 V DC and 110 V AC to 230 V AC, such as binary command inputs, such as "disconnector on", "disconnector off", "earthing on", "earthing off" and internal feedback of operating equipment, such as feedback from the contact levels of the auxiliary switch and feedback "disconnector is on", "isolator and earth electrode are off", " Erder is a ".

The control of the control unit 4 is designed such that in case of failure of one of the supply connections A1 or A2 during operation of the drive motor M this stops and via the terminals A5 latches to the higher-level equipment, such as circuit breaker, are switchable and thus maintained. If the drive motor M does not start at a command input via one of the connections A6, the relevant command is not stored since it was not executed. With recurring supply voltage for one of the circuits LK, SK to be supplied, the drive motor M does not automatically restart without command input. In addition, if the auxiliary switch fails to respond to a command input for switching one of the operating means within a predefinable time via one of the terminals A6, a fault or error message is output. For example, for a drive motor M configured as a crawler drive, the predefinable response time is approximately 8 s and for a jump / jump memory drive approximately 8 s.

Furthermore, when a command has been executed and feedback has been received after about 1.5 seconds and no new command has been input, the control unit will 4 automatically switched off, whereby no power loss occurs. If, on the other hand, a command is input via one of the connections A6, then the drive motor M starts again when all prerequisites have been met. For this purpose, the restart of the drive motor M by means of the monitoring module 16 (Self-check) monitored by interrogation of all command and message inputs (= ports A4 and A6). If the requirements are fulfilled, the command applied to one of the terminals A6 is executed.

Furthermore, the feedback monitoring times can be freely programmed. For the auxiliary switch, shutdown of the block of management 4 and the fault message no feedback is provided. In addition, there are at least four engine brake functions by means of one in the microprocessor 10 implemented control program freely programmable, z. B. automatic cancellation of the brake function, freely programmable time, freely programmable manual operation.

In one possible embodiment, the control unit comprises 4 For hardware-based control, ie for controlling equipment, such as circuit breakers or three-position disconnectors, at least four command inputs via external buttons, at least three feedback inputs from the internal auxiliary switch of the switch unit 2 , a control input for the circuit breaker (control active at high signal, control unit 4 gives enable for switching when the circuit breaker is off), a circuit breaker control output, at least one interlocking output, at least one spare connection, one reversing connection and two potential-free relay outputs.

The Control implemented in the form of an algorithm comprises at least the following locking conditions:

• - "Three-position disconnector" control inactive when the Circuit breaker switched on and the internal power supply is off;
• - "Three-position disconnector" control inactive if the "Three-position disconnector" is set to manual mode is placed;
• - Control the reverse lock of the circuit breaker, if:
• • one Command to change the operating state of the three-position disconnector specified is.
• • of the Three-position disconnector is in operation and the end position is still is not reached.
• • the Control "three-position disconnector" due, for example external locking conditions, such as fuse addressed, gas loss, is inactive.

3 shows an embodiment of a circuit construction of the control unit 4 with associated terminals A1 to A6 as an integrated layer circuit in detail. In this case, the control unit comprises 4 the H-bridge circuit formed as a semiconductor circuit 9 and a microprocessor 10 as well as various control modules designed as semiconductor circuits 11 to 13 For controlling and interrogating analog interlocks, binary acknowledgments or binary inputs and outputs.

For switching on and off the supply voltage for the control circuit SK and the load circuit LK are switching elements 14 respectively. 15 intended. The switching elements 14 . 15 are relay contacts, which are switchable via one of the binary inputs of the terminals A6 by command input. The power is supplied to the connection via the binary input, whereby a high interference immunity of the switch-on is given. After switching on the one or more switching elements 14 . 15 the associated switching relay is held for example via an auxiliary winding (= self-holding). The shutdown he then follows via the microprocessor 10 based on a control signal generated by a controller. For example, the control unit turns off 4 Approx. 1.5 s after processing the last command and feedback by the auxiliary switch, if no new command is pending.

The control unit 4 is supplied via the control circuit SK and has a low power consumption, for example, of about 60 mA at 24 V DC control voltage.

The connections A4 of the analog locks to higher-level resources, z. As the power switch, are designed as potential-free contacts. rear locks done over the binary ones inputs the connections A6.

For monitoring the power supply of the H-bridge circuit 9 and the switching elements 14 . 15 and the command input terminals A6 is a monitoring module 16 provided with the microprocessor 10 connected is. In addition, the monitoring module 16 with a display element, for. B. a light emitting diode, or a potential-free terminal A5 to output a message. It can be connected via the connection of the monitoring module 16 with the microprocessor 10 used in this implemented safety functions and with the implemented in circuit technology safety functions of the monitoring module 16 linked and combined. Depending on the result of the safety function of the monitoring module 16 and / or the microprocessor 10 can supply the H-bridge circuit in the event of a malfunction or malfunction 9 , in particular the control elements 19 , and the switching element 14 be switched off for the load circuit LK.

In addition, by means of the microprocessor 10 implemented further operating and / or safety functions and for controlling or switching the switching device, the drive motor or other elements, such as display elements 20 or actuators 19 be used. Some examples of freely programmable operating and / or safety functions are described below.

For example, the drive motor M upon reaching an end position of one of the resources, eg. B. the three-position disconnector with the end positions "disconnector on", "OFF", "earthing on" braked. The follow-up time of the drive motor M and the braking times are freely programmable. After expiry of the specified braking time and release for manual operation, the motor circuit is automatically opened and released for manual operation. In addition, the electronic control and thus the control unit 4 with the microprocessor 10 and the control modules 11 to 13 when switching the switching drive to manual mode locked.

By means of the electronic control identified errors, such as incorrect direction of rotation of the drive motor M, malfunction of the mechanism of the switching drive, load voltage is missing or no feedback from the auxiliary switch, visualized. For this purpose, by means of the microprocessor 10 indicators 20 driven. Depending on the type of control, the display elements 20 permanently or flashing. It can be used to display different levels of interference, the display elements 20 with different clocked flashing light, z. B. with Tf = 0.5 s or Tf = 2 s are controlled.

Furthermore, the feedback and monitoring times of switching operations can be freely programmed. Furthermore, when the drive motor M is blocked, the motor current can be limited in time. In addition, other suitable control and / or message functions for the operation and safety of the switch drive by means of the microprocessor 10 will be realized.

Depending on the type of power supply, DC or AC, are between the H-bridge circuit 9 and the respective circuit to be supplied - control circuit SK and load circuit LK - associated voltage converter 17 . 18 , in particular AC / DC or DC / DC converter provided. For galvanic isolation of the control circuit SK and the load circuit LK and the internal voltage circuits of the control unit 4 for the control voltage or the load voltage are the voltage transformers 17 . 18 designed as an inverter or rectifier.

4 shows schematically in exploded view and longitudinal section of the integrated assembly according to 1 with the on the centrally arranged switch unit 2 on the head-mounted ble adapter element 3.1 with the control unit 4 , The switch unit 2 is executed in this embodiment as an 8-level auxiliary switch. The control unit 4 , ie their components, such as active and passive electronic components, the H-bridge circuit 9 , Relays, are on the associated adapter element 3.1 on both sides of the adapter element 3.1 applied. In this case, in particular high components, such as a capacitor 6 on the in the direction of the switch unit 2 arranged facing side of the circuit board. Depending on the structure of the switch unit 2 can be the capacitor 6 in a recess 7 the switch unit 2 be pluggable. In addition, the adapter element 3.1 at the switch unit 2 releasably secured in a suitable manner, for example, plugged, clipped or screwed.

5 schematically shows the integrated unit according to 4 in plan view of the head side on the auxiliary switch patch adapter element 3.1 with the control unit 4 , The adapter element 3.1 is designed as a printed circuit board in the area of the switch unit 2 a recess 8th has, so that the switch unit 2 freely accessible at the head end and at least partially into the recess 8th protrudes and form-fitting to the adapter element 3.1 is applied. This is the adapter element 3.1 in a simple manner on the switch unit 2 held.

On the from the switch unit 2 opposite side of the circuit board and thus the adapter element 3.1 is the control unit 4 For example, as an integrated circuit, in particular as an integrated layer circuit applied. Depending on the specification is the control unit 4 laterally from the switch unit 2 on the adapter element 3.1 arranged. To make the overall length of the integrated package compact, the components of the control unit can 4 in an alternative embodiment, not shown, also laterally of the switch unit 2 on the switch unit 2 directed side of the adapter element 3.1 be upset. Also, in particular, high components of the control unit 4 like the capacitor 6 on the in the direction of the switch unit 2 directed side of the adapter element 3.1 be arranged such that these laterally next to the switch unit 2 are arranged or in intended recesses 7 the switch unit 2 protrude.

6 shows schematically in longitudinal section an embodiment of an integrated unit with a centrally arranged 14-level auxiliary switch as a switch unit 2 , on the head side, the adapter element 3.1 with the control unit 4 is attached. In the formation of the switch unit 2 as a 14-level auxiliary switch are laterally on the respective adapter element 3.2 and 3.3 several connection elements 5 arranged different numbers of poles. For example, each connection element 5 a 2 × 22-pin connector and a 2 × 10-pin connector provided.

In 7 is the integrated unit according to 6 in plan view of the head side on the auxiliary switch patch adapter element 3.1 with the control unit 4 shown. In this case, the control unit 4 depending on the type and structure and function of the switch unit 2 be different or the same. The adapter element 3.1 encloses the switch unit 2 U-shaped, so that these laterally instead of a head-side Aufsteckens 4 on the switch unit 2 deferrable or enforceable.

1

Tax- and / or reporting unit

2

switch unit

3.1 to 3.n

adapter elements

4

control unit

5

connection elements

6

capacitor

7

recess

8th

recess

9

H-bridge circuit

10

microprocessor

11 to 13

control modules

14 15

switching elements

16

monitoring module

17 18

DC converter

19

Actuation

20

indicators

A1, A2

supply connections

A3 to A6

connections

LK

load circuit

M

drive motor

SK

control circuit

Claims (19)

Device for controlling a switch drive for a switching device, characterized by a control and / or signaling unit designed as an integrated unit ( 1 ) with a control unit ( 4 ) for controlling the drive operated by a drive motor (M) switch drive, wherein the control unit ( 4 ) is formed as an integrated layer circuit, which is applied to a carrier unit designed as a printed circuit board, wherein the carrier unit as a universal adapter element ( 3.1 ) is trained. Apparatus according to claim 1, wherein the integrated layer circuit as discrete components at least one microprocessor ( 10 ) and display elements ( 20 ) and control modules designed as semiconductor circuits ( 11 to 13 ) as well as a semiconductor circuit designed H-bridge circuit ( 9 ) and as passive components printed conductors, insulations, connections (A1 to Am), switching elements ( 14 . 15 ), Capacitors. Apparatus according to claim 2, wherein the H-bridge circuit ( 9 ) forms an internal switching part and operates in the wide voltage range from 24 V DC to 220 V DC and 110 V AC to 230 V AC. Apparatus according to claim 2 or 3, wherein the respective display element ( 20 ) is formed as a light emitting diode. Device according to one of claims 2 to 4, wherein by means of the or the display elements ( 20 ) an incorrect direction of rotation of the drive motor (M), a missing load voltage and / or a missing one Feedback from an auxiliary switch can be displayed or is. Device according to one of claims 2 to 5, wherein one of the connections (A2) a supply connection for a load circuit (LK) and a further connection (A1) a supply connection for a control circuit (SK) is. Apparatus according to claim 6, wherein the supply terminals are galvanic are separated. Apparatus according to claim 6 or 7, wherein the supply terminals each have a switching element ( 14 . 15 ) and a voltage converter ( 16 . 17 ) is connected upstream. Apparatus according to claim 8, wherein the respective switching element ( 14 . 15 ) is formed as a relay contact. Apparatus according to claim 8 or 9, wherein the respective switching element ( 14 . 15 ) via at least one of the terminals formed as binary inputs (A6) is switchable. Device according to one of the connections 8 to 10, wherein the respective switching element ( 14 . 15 ) is designed to be self-holding after switching on by means of an auxiliary winding. Device according to one of claims 8 to 11, wherein the respective voltage transformer ( 16 . 17 ) is designed as an AC / DC and DC / DC converter or rectifier for a wide voltage range of 24 V DC to 220 V DC and 110 V AC to 230 V AC. Device according to one of claims 1 to 12, wherein a trained as a semiconductor circuit monitoring module ( 16 ) is provided for self-monitoring. Apparatus according to claim 13, wherein the monitoring module ( 16 ) in the event of an error, the supply of the H-bridge circuit ( 9 ) and the switching element ( 14 ) of the load circuit (LK) switches off. Device according to one of claims 2 to 14, wherein by means of the microprocessor ( 10 ) Response times of switching operations are freely programmable. Apparatus according to claim 15, characterized by a switch unit designed as a position indicator ( 2 ), at least two adapter elements ( 3.1 to 3.n ) are arranged, one of which for receiving the control unit ( 4 ) is formed and of which the other for receiving at least one connection element ( 5 ) is trained. Apparatus according to claim 16, wherein the carrier unit of the control unit ( 4 ) one of the adapter elements ( 3.1 to 3.n ). Device according to one of claims 16 or 17, wherein the control unit ( 4 ) as an integrated circuit and / or electromechanical circuit on the adapter element ( 3.1 ) is applied. Device according to one of claims 16 to 18, wherein the control unit ( 4 ) provided adapter element ( 3.1 ) on the switch unit ( 2 ), in particular attachable is.