EP0947658A2 - Drive for a door - Google Patents

Abstract

The drive has a drive arrangement with two electrical drive motors (10, 20) and an electrical controller with an electronic control unit, all supplied from the electrical supply network and/or an electrical energy storage arrangement, especially an accumulator. Door panels (1, 2) can be driven by one motor in one state and by the other motor in another state, or each panel can be driven by a separate motor in one state and by one motor in a second state. Alternatively, in one state the panels can be driven by several coupled motors in one state and by only some of the motors in the other state, in which some of the motors, which are not driving the panels, are switched off.

Description

The invention relates to a drive for a door with at least one driven Wing with the features of the preamble of claim 1.

Such a drive for a two-leaf sliding door is with the automatic Sliding door drive STK from Manusa known. Each wing of the double wing Sliding door has a separate drive motor with which the respective Sliding sash is driven.

With differently constructed sliding door drives for double-leaf doors, e.g. in DE 42 07 058 A1, a common drive motor is provided, which drives a circulating drive belt. One wing is with that upper run and the other wing connected to the lower run of the drive belt, so that the wings move in opposite directions with the drive of the drive belt become. Such a sliding door drive, which is constructed in a similar manner in principle, is also in described in DE 42 33 681. It is for use on a double leaf Escape and escape route door determined. In the event that the drive motor fails, an auxiliary drive is provided in the form of an opening spring, the two wings connected via the circumferential drive belt if the engine fails in the opening direction.

Between the drive motor and the drive belt is in the known drive an electrically switchable coupling is provided, which ensures that the Emergency opening operation of the failed drive motor from the drive belt system and is therefore decoupled from the wings and he does not open the emergency blocked.

The invention has for its object a door drive of the aforementioned To create a way in which the wing (s), e.g. in by disturbances of the Drive motor device-related emergency operating conditions, at least a drive motor of the drive motor device is driven.

This object is achieved by the invention with the subject matter of claim 1. With the Using multiple electric drive motors is a particularly safe one Operation possible. In particular, it is possible to use one of the electric drive motors to hold as a reserve motor and on a mechanical emergency drive, e.g. mechanical force storage, to do without. The control device the door drive is designed so that different operating states automatically can be recognized and according to the current operating status the reactions required for safe operation of the door operator respectively. The switchover between the operating states preferably takes place, in particular between the first and the second operating state, automatically. The first operating state can be the normal operating state at which the wings in a preferred embodiment via separate drive motors are driven. The second operating state can be the emergency operating state his. It can be switched on automatically if one of the drive motors fails.

In a first operating state, one or more blades can via one of the drive motors, which thus acts as a common drive motor is designed to be driven while the other of the drive motors is designed as a (reserve) motor for a second operating state. Alternatively can in a first operating state each wing separately via one of the Drive motors are driven while in a second operating state the wings are driven together by one of the drive motors. Moreover it is alternatively conceivable that in a first operating state the or the wings are driven by a plurality of drive motors of the drive motor device will or will be, the drive motors mechanically with each other are coupled by the output members of the drive motors directly or are indirectly coupled to one another while in a second operating state the wing or wings is only driven by a part of the drive motors or become and the drive motor or the drive motors, the or the or does not drive or drive the wings, is electrically ineffective or are.

In this preferred embodiment, the wings are in the second operating state driven jointly by a motor, e.g. in the sense of a one-off Emergency opening or closing, depending on whether it is an emergency exit sliding door acts that must be open in an emergency, or a fire or Fire door that must be closed in an emergency.

To in the second operating state - emergency operating state - that is, if a drive motor failed to ensure that the emergency operation of the door can take place, without the door being blocked by the failed drive motor a coupling device can be provided which the failed drive of decouples the wing or wings. It can be provided that each of the drive motors has such a switchable clutch for emergencies or that a common clutch is provided which interacts with both drive motors.

Furthermore, this or another clutch must ensure that the two wings be coupled with the drive motor that has not failed.

It can also be provided that the drive motors are freewheel devices have, each make sure that in the event of engine failure the with Motor connected wing is unlocked and without resistance from the failed Drive motor can be driven by the other drive motor.

In a preferred embodiment, an electrically switchable clutch acts with the two drive motors of a two-leaf door system. The Coupling uncouples each of a drive motor from the Wing and couples the wing in drive connection with the other drive motor. For this purpose, it can be provided that the clutch on the drive motors driven drive pulleys from rotating drive belts acts as a transmission device between the output side of the drive motors and the wing are provided.

In a further preferred embodiment, in which the number and type the door leaf is arbitrary, is in a manner known per se - that is, also in the case of multi-leaf doors Doors - a single drive belt is provided, which, however, from two or more drive motors is driven together. The drive motors are mechanically coupled to each other via the drive belt and bring together the necessary for the movement of the door leaves Force, in the normal operating state preferably a synchronous control the drive motors by the control device. In emergency mode, especially if at least one of the drive motors fails, the defective drive motor becomes electrical from the drive motor device decouples and then runs empty, with no significant mechanical Represents load; In addition, mechanical decoupling of the defective drive motor can be provided. The drive power of the rest of the drive motor or the other drive motors is sufficient to at least perform a safety response, e.g. a full emergency opening or Emergency closing of the door wing, whereby the possibility can be used, one to be able to operate the electric motor briefly above its nominal power, without thermal damage to the engine. With sufficient dimensioning however, the drive motors are automatic even in the second operating state Operation of the door system conceivable.

A further preferred embodiment of the door drive according to the invention provides before that the control device consists of at least two control units consists. The control units are designed so that each individual control unit control and monitor all functions of the door operator on their own can. Furthermore, between the individual control units Control device a permanent data exchange instead, so that interference immediately recognized in one of the individual control units and the then necessary ones Reactions are initiated.

In a preferred embodiment, one of a first control unit controlled and monitored drive motor from an energy supply network fed, while as a fallback level a second control unit, which a from a second energy supply, in particular battery, fed second Drive motor controls and monitors, is provided. If there is a malfunction in the first energy supply and / or in the first electric motor automatically switched to this fallback level, i.e. on the from the battery powered, monitored by the second control unit operation of the second Drive motor, which has at least one safety reaction, i.e. an emergency opening or emergency closing of the door leaves, ensures or if the charge is sufficient the battery performs another controlled, automatic operation. As an alternative to single-engine operation with the second one running idle Motor can also have a switching device in the power supply lines be provided which, in any operating state, all functional drive motors electrically switched on.

Another preferred exemplary embodiment provides that the control device from at least one full first control unit for monitoring and control of all functions of the door operator as well as from another Control unit for monitoring the functionality of the first control unit consists. In the power supply lines of the drive motors switches are arranged, the one drive motor when a fault is detected disconnect electrically and at the same time electrically another drive motor switch on. There will then be a security response, especially one complete emergency opening or closing of the door leaves. Here too is the second energy supply in addition to the energy supply network, a battery or the like provided, here also a multi-engine operation with the Connection of all functional drive motors is conceivable.

For all the described embodiments, the current operating state applies or at least the change to the emergency operating mode optically and / or can be displayed acoustically via appropriate devices. Alternatively or additionally, this signal can be sent to a higher-level monitoring device be transmitted. This signal transmission can be wired or wirelessly. As a switch for electrical activation or activation of the electric drive motors, mechanical switches, e.g. Ralais contacts, or electronic switches based on semiconductors are provided his. Furthermore, there is also an inexpensive switch with a separating function A fuse in the power supply line of the drive motor is conceivable.

Preferred embodiments are drives for two-leaf ones Sliding door systems with counter-rotating sliding sashes. There are however, versions are also possible in which the drive is in a sliding door system is used with more than two sliding sashes or on sliding door systems with sliding wings driven in the same direction. Other embodiments with drives on door systems that use folding leaves instead of sliding leaves or have rotary blades are also possible, e.g. Door systems with opposite driven folding leaves or double or multi-leaf rotating leaves.

Figur 1

eine Frontansicht einer zweiflügeligen Tür mit automatischem Antrieb mit zwei separaten Antriebsmotoren;

Figur 2

eine Draufsicht in Figur 1;

Figur 3

eine Draufsicht einer zweiflügeligen Tür mit automatischem Antrieb mit zwei separaten Antriebsmotoren und einem gemeinsamen Treibriemen;

Figur 4

ein Blockschaltbild eines zweimotorigen Türantriebs;

Fugur 5

ein Blockschaltbild eines zweimotorigen, gegenüber dem vorangehenden Ausführungsbeispiel abgewandelten Türantriebs.

Exemplary embodiments are described below with reference to the figures. It shows:

Figure 1

a front view of a two-leaf door with automatic drive with two separate drive motors;

Figure 2

a plan view in Figure 1;

Figure 3

a plan view of a two-leaf door with automatic drive with two separate drive motors and a common drive belt;

Figure 4

a block diagram of a two-motor door drive;

Fugur 5

a block diagram of a two-motor, compared to the previous embodiment modified door operator.

The exemplary embodiment shown in FIGS. 1 and 2 is a two-leaf sliding door with sliding leaves 1, 2 driven in opposite directions. The drive has a first drive motor 10 and a second drive motor 20. In the normal operating state, the wing 1 is driven by the drive motor 10 and the wing 2 by the drive motor 20. The wings 1, 2 are thus driven separately via these separate motors. The motors 1, 2 can be operated independently of one another, but also synchronously or in any desired manner. Each of the drive motors can have a separate control unit, but a common control unit can also be provided which operates both drive motors 10, 20. The wings are suspended on roller carriages, which are guided in a stationary running rail 40. The drive can be controlled automatically via a motion detector or the like, not shown.

A drive belt device is located between the drive motor 10 and the wing 1 with a rotating drive belt driven by the drive motor 15 provided. The upper run of the drive belt 15 is via a driver 16 connected to the wing 1. The drive belt 15 runs over a deflection roller 12 and a drive pulley 11 driven by the drive motor 10.

In a corresponding manner, between the wing 2 and the drive motor 20th a transmission device with drive belt 25 is provided. The wing 2 is connected to the lower run of the drive belt 25 via a driver 26. The drive belt runs over a drive pulley driven by the drive motor 20 21 and a deflection roller 22.

In the illustrated embodiment, the wing 1 is assigned Drive belt device with the drive belt 15 arranged above wing 1 and the drive belt device assigned to the wing 2 with the drive belt 25 arranged above wing 2. The driven drive pulleys 11, 21 are each approximately in the axial center of the door system, and in such a way that the axes of rotation of the output axes 11, 21 are aligned with one another. Between the drive disks 11, 21 arranged on the output shafts an electrically switchable clutch 30 is arranged, which ensures that in the normal operating state of the drive, the drive pulley 11 with the output shaft of the motor 10 and the drive pulley 21 with the output shaft of the motor 20 is non-rotatably coupled and in emergency operation if one of the motors has failed, the drive pulley of the failed motor from this motor or drive shaft of the motor uncoupled and with the other drive motor or output shaft of the engine or the drive pulley driven by the engine is, so that in emergency operation both wings 1, 2 together by the drive motor 10 or driven by the drive motor 20. Through this special coupling 30 ensures that if one of the drive motors 10, 20, i.e. even if one of the electric motors 10, 20 burns out and thus against another rotation may be blocked, which originally drives this drive motor assigned wing 1, 2 in the emergency operating state together with the other wing is operated via the other drive motor.

FIG. 3 shows a drive which is modified compared to the previous exemplary embodiment for a double-leaf sliding door with sliding leaves 1, 2 driven in opposite directions. The drive has a first drive motor 10 and a second drive motor 20. A drive slide 11, 21 is arranged on the output shafts of the drive motors 10, 20, a rotating drive belt 15 being guided over both drive pulleys 11, 21. The left-hand sliding sash 1 in the figure is connected via a driver 16 to the upper run of the drive belt 15, while the other slide wing 2 is connected to the lower run of the drive belt 15 via a driver 26.

In the normal operating state, the drive motors 10, 20 are synchronized with one another controlled. In an operating state that differs from normal operation, which e.g. due to an electrical fault in one of the drive motors 10, 20 this emergency operating state is triggered by the one not shown here Drive control recognized and a corresponding safety response automatically initiated, e.g. an emergency opening or closing of the sliding sash 1, 2. In normal operation, both drive motors 10, 20 stand for the common one Drive the sliding leaf 1, 2 available, so that in this operating state each drive motor 10, 20 applies half the drive power of the door system. The drive motors 10, 20 are designed so that their drive power that in the emergency mode a single drive motor using the Possibility of brief overloading the security response reliably can perform. The second drive motor 10, 20 runs idle in this case and therefore does not represent a significant mechanical load. In addition, however here also a coupling device, not shown here, for mechanical Decoupling of the drive motors 10, 20 from the drive belt 15 may be present.

FIGS. 4 and 5 show block diagrams for controlling the drive motors 10, 20 of two-motor door drives. The number of door leaves, not shown, is arbitrary. The energy supply takes place in each case from an energy supply network 50, the supply voltage being transformed to the operating voltage of the door drive by means of a transformer (not shown) and rectified if necessary via a rectifier. In addition, a second energy supply device is provided, which is designed as a battery 51. This energy supply device ensures the energy supply to the door drive in the event of faults, in particular in the event of a failure of the energy supply network 50. Alternatively, the second energy supply device can also be designed as a second energy supply network in any desired configuration.

FIG. 4 shows a two-motor drive, the first drive motor 10 of which is supplied with energy from the energy supply network 50 via energy supply lines 57a, 57b, 57c, a first control unit 52 controlling the motor and, in a known manner, all the other components of the door drive, not shown here and monitored. The function of the first control unit 52 is monitored by a second control unit 54, data being exchanged between the control units 52, 54 via a data transmission line 58a. A switch 56 designed as an opener is arranged in the power supply line 57b, 57c of the first motor. The second drive motor 20 is fed from a battery 51 via energy supply lines 57d, 57e. In the power supply line of the second motor there is a switch designed as a make contact 55. The switches 55, 56 located in the energy supply lines 57b, 57c, 57d, 57e are preferably controlled simultaneously by the second control unit 54 via data transmission lines 58c, 58d and can be designed as relay switches with mechanical contacts or as electronic semiconductor switches.

In normal operation, the door leaves are driven solely by the first drive motor 10, the energy supply from the energy supply network 50 and the control is carried out by the first control unit 52. The second Drive motor is not energized in normal operation and can either, as in the Embodiment according to Figure 3, run empty or by a clutch be mechanically decoupled. The first control unit 52 is operated by the second control unit 54 permanently monitored, with an education of second controller for monitoring and / or controlling the other components of the door operator is not absolutely necessary. However, the correct one Function of the second control unit 54 constantly monitored. By the second control unit 54 and in that the first control unit 52 complete monitoring and control function for everyone Components is reliable monitoring of the entire door drive guaranteed.

When an emergency operating condition is detected, especially when a Fault in the energy supply network 50 and / or in the first drive motor 10 and / or in the power supply lines 57a, 57b and / or in the Control unit 52, an automatic takes place via the switches 55, 56 Switching to the operation of the second motor 20 while feeding from the Battery 51. According to the polarity of the connection of the second drive motor 20 this engine performs a safety response, preferably a complete one Opening or closing of the door leaves. The first drive motor 10 can either run empty or mechanically by means of a clutch be decoupled.

The exemplary embodiment according to FIG. 5 shows a two-motor door drive with two basically identical control units 52, 53. The energy supply network 50 feeds the first drive motor 10 via energy supply lines 57a, 57b, the first control unit 52 activating and monitoring the drive motor 10. Furthermore, the first control unit 52 controls and monitors all other components of the door drive, not shown here, in a known manner. The second drive motor 20 is supplied with energy from a rechargeable battery 51 via energy supply lines 57d, 57e and is controlled and monitored by a second control unit 53.

In normal operation, the door leaves are driven solely by the first drive motor 10, the energy supply from the energy supply network 50 and the control is carried out by the first control unit 52. The second Drive motor is not energized in normal operation and can either, as in the Embodiment according to Figure 3, run empty or by a clutch be mechanically decoupled. Finds between the control units 52, 53 Permanent data exchange via the data transmission lines 58a, 58b instead, so that in addition to monitoring the energy supply facilities and the components of the door drive also mutual monitoring the control units 52, 53 is guaranteed.

In an emergency operating state, in particular when a fault is detected in the energy supply network 50 and / or in one of the control units 52, 54 and / or in the first drive motor 10 and / or in the associated power supply lines 57a, 57b, an automatic switchover to operation of the. controlled and monitored by the second control unit 53 second motor 20 powered by the battery 51. The first drive motor 10 can either run empty or mechanically decoupled by a clutch his.

Depending on the state of charge and the charging capacity of the battery 51 is a further automatic, mains-independent operation of the door possible, whereby before a complete discharge of the battery 51, possibly a safety reaction, e.g. Emergency opening or closing of the door leaves can take place.

In both of the preceding exemplary embodiments, provision can alternatively be made be that in the power supply lines 57b, 57e an additional, here Switching device, not shown, is arranged, which in all operating states a multi-engine operation with connection of all functional Drive motors 10, 20 allowed.

With all of the exemplary embodiments shown, redundancy of the drive is achieved received, and it is ensured that the emergency opening in the case of an emergency exit door system or the emergency closure in the case of a fire or smoke protection door system is each motorized, even in the event that one of the Drive motors 10, 20 fail.

The feedback of the switchover is not shown in the exemplary embodiments between operating states, in particular between normal and Emergency operating state. This feedback can be optically and / or acoustically Suitable display devices and / or by means of a data transmission device to higher-level, central monitoring devices, e.g. be transmitted to control centers or the like.

Directory of the reference characters

1

Sliding sash

2nd

Sliding sash

10th

Drive motor

11

Traction sheave

12th

Pulley

15

Drive belt

16

Carrier

20th

Drive motor

21

Traction sheave

22

Pulley

25th

Drive belt

26

Carrier

30th

clutch

40

Track

50

Energy supply network

51

battery pack

52

Control unit

53

Control unit

54

Control unit

55

Switch (make contact)

56

Switch (break contact)

57a

Power supply line

57b

Power supply line

57c

Power supply line

57d

Power supply line

57e

Power supply line

58a

Data transmission line

58b

Data transmission line

58c

Data transmission line

58d

Data transmission line

Claims (28)

Drive for a door with at least one driven leaf (1, 2), with an electric drive motor device with at least two electric drive motors (10, 20) and with an electrical control device with at least one preferably electronic control unit (52, 53, 54), wherein the energy supply of the electric drive motor device and the electrical control device comes from an electrical energy supply network (50) and / or from an electrical energy store, in particular a rechargeable battery (51),
characterized, (a) that in a first operating state one or more blades (1, 2) are driven via one of the drive motors (10, 20) as a common drive motor (10, 20), whereas in a second operating state the blades (1 , 2) or the wing is or are driven by the other of the drive motors (10, 20), or (b) that in a first operating state each wing (1, 2) is driven separately via one of the drive motors (10, 20), whereas in a second operating state the wings (1, 2) are driven jointly by one of the drive motors (10, 20 ) are driven, or (c) that, in a first operating state, the blades (1, 2) or the blades (1, 2) are driven or driven by a plurality of the drive motors (10, 20), the drive motors (10, 20) being mechanically connected to one another are coupled by the output members of the drive motors (10, 20) being directly or indirectly coupled to one another, whereas in a second operating state the vanes (1, 2) or the vanes (1, 2) are only connected by a part of the drive motors (10, 20) is or are driven and the drive motor (10, 20) or the drive motors (10, 20) which does not drive the wing (1, 2) or the wing (1, 2) or do not drive, is or are electrically inactive. Drive according to claim 1,
characterized in that in a first operating state, preferably normal operating state, the first wing (1) is drive-connected to the first drive motor (10) and the second wing (2) is drive-connected to the second drive motor (20) and
that in a second operating state, preferably an emergency operating state, the first wing (1) and the second wing (2) are connected to the first drive motor (10) or the first wing (1) and the second wing (2) are connected to the second drive motor ( 20) are connected to the drive. Drive according to claim 1 or 2,
characterized in that in the second operating state - emergency operating state - the first drive motor (10) from the first wing (1) or the second drive motor (20) from the second wing (2) is uncoupled. Drive according to one of the preceding claims,
characterized in that a switchover device, preferably an automatic switchover device, which switches between the first and the second operating state is provided. Drive according to claim 4,
characterized in that the switching device has a switchable clutch device (30), preferably an electrically switchable, for example electromagnetic clutch. Drive according to one of the preceding claims,
characterized in that the first drive motor (10) has a freewheel device or cooperates with a freewheel device and / or the second drive motor (20) has a freewheel device or cooperates with a freewheel device, preferably providing that the freewheel device can be switched on / off automatically. Drive according to one of claims 4 to 6,
characterized in that the coupling device (30) acts between the first drive motor (10) and the first wing (1), preferably between the output member of the first drive motor (10) and a transmission device transmitting the drive force to the first wing (1) and / or
that the coupling device acts between the second drive motor (20) and the second wing (2), preferably between an output member of the second drive motor (20) and a transmission device which transmits the driving force to the second wing. Drive according to claim 7,
characterized in that the transmission device of each wing (1, 2) each has a driven, rotating drive belt (15, 25). Drive according to claim 8,
characterized in that the coupling device (30) acts between the output shaft and a driven drive pulley (11, 21). Drive according to one of claims 7 to 9,
characterized in that each drive motor (10, 20) has a separate coupling device or that a common coupling device (30) is provided which interacts with both drive motors (10, 20). Drive according to claim 10,
characterized in that the first drive motor (10) and the second drive motor (20) and the common coupling device (30) cooperating with both drive motors (10, 20) are arranged side by side in one area. Drive according to claim 10 or 11,
characterized in that the common coupling device (30), which interacts with the first drive motor (10) and the second drive motor (20), depending on the switching position and operating state, on the output member of the first drive motor (10), preferably on the output shaft of the first drive motor ( 10) driven drive pulley (11) and / or on the output member of the second drive motor (20), preferably on the drive shaft (21) driven by the output shaft of the second drive motor (20). Drive according to claim 11 or 12,
characterized in that in the normal operating state the first wing (1) is drive-connected to the driven member of the first drive motor (10) via a rotating first drive belt (15) and the second wing (2) is connected to the driven member of the. via a rotating second drive belt (25) second drive motor (2) is drive-connected and
that the coupling device (30) is switched such that in the normal operating state the first drive belt (15) is uncoupled from the second drive belt (25) and in the emergency operating state the first drive belt (15) is coupled to the second drive belt (25), in which Emergency operating state either the first drive motor (10) is uncoupled from the first wing (1) or the second drive motor (20) is uncoupled from the second wing (2) Drive according to one of the preceding claims,
characterized in that the drive motors (10, 20) of the drive motor device act on a common power transmission device producing a mechanical connection to the wing (1, 2) or the wings (1, 2), in particular on a common drive belt (15). Drive according to claim 14,
characterized in that the output members of the drive motors (10, 20) are non-detachably or releasably connected to the common power transmission device. Drive according to one of the preceding claims, in particular according to claim 14 or 15,
characterized in that the control device is designed such that the drive motors (10, 20) are controlled synchronously in a first operating state, preferably normal operating state. Drive according to one of the preceding claims, in particular according to one of claims 14 to 16,
characterized in that the control device is designed such that in a second operating state, preferably an emergency operating state, in particular in the event of an electrical defect in one or more of the drive motors (10, 20), the defective drive motor (10, 20) or the defective drive motors ( 10, 20) is electrically decoupled from the drive motor device. Drive according to one of the preceding claims, in particular according to one of claims 14 to 17,
characterized in that the drive motor device is designed such that in the second operating state at least one opening or closing movement of the door leaf (1, 2) or the door leaf (1, 2) is possible by only one of the drive motors (10, 20), it is preferably provided that the drive motor (10, 20) is operated at least temporarily above its nominal power. Drive according to one of the preceding claims,
characterized in that a device for the automatic detection of faults, in particular electrical defects, of the drive motor device is provided, for example by means of current or winding resistance measurement of the drive motors (10, 20). Drive according to claim 19,
characterized in that the device for automatic detection of faults in the drive motor device is designed such that an automatic electrical and / or mechanical decoupling of a defective drive motor (10, 20) from the drive motor device takes place. Drive according to claim 19 or 20,
characterized in that the device for the automatic detection of faults in the drive motor device consists of a measuring device and a shutdown device, the shutdown device being designed as a mechanical switch, in particular a relay, or as an electronic switch, in particular a semiconductor switch. Drive according to claim 19 or 20,
characterized in that the device for the automatic detection of faults in the drive motor device is designed as a fuse, in particular a fuse or the like. Drive according to one of the preceding claims,
characterized in that the electrical control device consists of at least two electronic control units (52, 53, 54). Drive according to claim 23,
characterized in that the control units (52, 53, 54) of the control device are designed such that regular data transmission takes place between the control units (52, 53, 54), in particular by means of data transmission lines (58a, 58b) or the like. Drive according to claim 23 or 24,
characterized in that the control units (52, 53, 54) of the control device are designed such that faults, in particular faults in one or more of the control units (52, 53, 54) and / or faults in the drive motor device and / or faults in the Power supply can be detected, it is preferably provided that a safety response occurs when a fault occurs. Drive according to one of claims 23 to 25,
characterized in that in a first operating state, preferably normal operating state, a first control unit (52) interacts with a first energy supply, in particular energy supply network (50), and with at least one first drive motor (10) and
that in a second operating state, preferably an emergency operating state, in particular in the event of an electrical defect in the first drive motor (10) or the first drive motors and / or in the event of a defect in the first energy supply and / or in the event of a defect in the first control unit (52), a second control unit (53) cooperates with a second energy supply, in particular energy storage, for example a battery (51), and with at least one second drive motor (20). Drive according to one of claims 23 to 25,
characterized in that in a first operating state, preferably normal operating state, a first control unit (52) interacts with a first energy supply, in particular energy supply network (50), and with at least one first drive motor (10) and
that in a second operating state, preferably an emergency operating state, in particular in the event of an electrical defect in the first drive motor (10) or the first drive motors and / or in the event of a defect in the first energy supply and / or in the event of a defect in the first control unit (52), a second energy supply is connected to at least one second drive motor (20) via a switch (55), it preferably being provided that the first drive motor (10) or the first drive motors is or are electrically decoupled from the energy supply line by a further switch (56) . Drive according to claim 27,
characterized in that the switch (s) (55, 56) is or are controlled by at least one control unit (54) of the control device, preferably via data transmission lines (58c, 58d) or the like.

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