EP3216734B1 - Dispositif de commande de freinage d'ascenseur et procede de commande d'un frein d'ascenseur - Google Patents
Dispositif de commande de freinage d'ascenseur et procede de commande d'un frein d'ascenseur Download PDFInfo
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- EP3216734B1 EP3216734B1 EP16000542.7A EP16000542A EP3216734B1 EP 3216734 B1 EP3216734 B1 EP 3216734B1 EP 16000542 A EP16000542 A EP 16000542A EP 3216734 B1 EP3216734 B1 EP 3216734B1
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- brake
- rectifier
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- phase
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- 238000000034 method Methods 0.000 title claims description 10
- 230000004913 activation Effects 0.000 claims description 24
- 230000005669 field effect Effects 0.000 claims description 4
- 230000003213 activating effect Effects 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
- B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
- B66B1/32—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on braking devices, e.g. acting on electrically controlled brakes
Definitions
- the invention relates to an elevator brake control device, comprising a supply connection, with two rectifier devices connected downstream of the supply connection, each having a rectifier element in each first branch, and having two brake connections for an electromagnetically actuated elevator brake, one brake connection each being one of the two Rectifier devices is connected downstream.
- the invention further relates to a method for controlling an elevator brake, wherein two brake magnets of the elevator brake via a respective rectifier device, each having a first branch, wherein in each first branch a rectifier element is arranged, are energized from a supply terminal.
- Such elevator brake control devices are known and are used, for example, to actuate or release the holding brakes of an elevator. It has become common practice to perform the control of electromagnetically actuated brake magnets via contactors, as These allow in a simple and proven way a safety-related monitoring of the switching functions.
- a device is in the GB 2225679 disclosed.
- the rectifier device serves to convert the supply voltage at the supply connection, which is typically present as an alternating voltage, into a (pulsed) direct voltage with which the electromagnetically actuated brake magnet is actuated in order to release the brake.
- the rectifier device can in this case be designed as a rectifier bridge or comprise a rectifier bridge.
- the invention is based on the object to improve the performance characteristics of a elevator brake drive device.
- the invention thus allows in a simple manner, even with a redundant design of a brake control on contactors largely or completely to dispense, which, for example, a noise can be reduced.
- the formation of redundant brake connections is known per se from the prior art and serves, for example, for the safety-related switching of two holding brakes.
- the two first branches are electrically connected or connectable to different phases of the supply connection.
- each rectifier device with two first branches in each rectifier device can be provided that two first branches of each rectifier device are electrically connected to a common pole of the at least one brake terminal.
- the advantage here is that with both phase control means a common pole of the brake assembly can be controlled and in particular over the entire course of a solid shaft or a part thereof from the supply voltage separable and / or can be connected to this.
- each rectifier device at one end with different Phases of the supply terminal and are electrically connected at another end to a common pole of the at least one brake terminal.
- the phase-gating means can be realized, for example, in each case with a control input of a controllable electronic component.
- phase control means is formed on the rectifier element of the respective first branch.
- the advantage here is that no additional electronic components are required. It is particularly advantageous if the rectifier element is a thyristor. In this way, it is easy to fall back on existing technology for carrying out phase control by means of phase control means.
- the rectifier device has at least three branches, in each of which a rectifier element is arranged, wherein at least one branch of the at least three branches as the second branch has no phase control means.
- the at least one second branch of a rectifier device which is not equipped with the aforementioned phase control means, each represents a branch returning to the two first branches, in which a separate phase control is not required.
- the respective rectifier element in at least one branch in particular in the above-mentioned second phase-free, second branches, uncontrolled and / or unan horrbar is.
- each rectifier device in particular as a rectifier bridge, has at least three branches, of which in each case two branches are / are formed as first branches and one branch as the second branch.
- each rectifier device in particular as a rectifier bridge, a further second branch of each other rectifier device, in particular rectifier bridge, shared. It is thus easy to use each half-wave of the supply connection at each brake connection.
- each rectifier device in particular as a rectifier bridge, has four branches, of which two branches are designed as first branches and further two branches as second branches.
- an electronic control circuit is set up to control the phase control means, in which a symmetrical load of the supply connection results. It is particularly advantageous if the two first branches, each having a phase control means, are connected to different phases of the supply connection.
- the advantage here is that network perturbations by switching the brake connection are avoidable or reducible. For example, this can be achieved in that the electronic drive circuit is set up for a time symmetrical switching of the phase control means to cut off opposite half-waves of a supply voltage in the same way, resulting in a symmetrical load on the supply terminal results.
- an electronic control circuit for example the already mentioned electronic control circuit, the phase control means for providing at least two different, non-vanishing or non-zero effective voltage levels at the at least one brake connection is established. This can be achieved, for example, by different switch-off times in relation to the time length of a half-wave.
- the advantage here is that a holding current to the brake magnet in a simple way can be configured smaller than a higher current for releasing the holding brake.
- the invention may thus according to this aspect, possibly of independent inventive quality, provide that first with the phase control means a high operating current by generating a high effective voltage level at the at least one brake connection and after a fixed period of time and / or once a release of the brake is detected, the generation of a lower holding current by generating a lower effective voltage level at the at least one brake connection is feasible. This results in savings in energy consumption during normal operation, ie in the released state of the holding brake.
- a freewheeling diode is arranged at the at least one brake connection.
- the advantage here is that a degradation of the built-up magnetic field in the brake magnet can be delayed, so that the holding brake can be softer. Thus, a noise on the holding brake can be reduced.
- the electronic Abschaltelement is arranged in a freewheeling diode containing the free-wheeling.
- the holding brake can thus quickly by separating the freewheel branch with the electronic shutdown - for example, in an emergency shutdown -, in which case less weight is placed on the noise.
- this electronic shutdown element may be formed as a field effect transistor, whereby switching noises of the electronic shutdown element are reducible or completely avoidable.
- the at least one brake connection can be switched off with the aforementioned switch-off element.
- the advantage here is that an additional switch-off possibility is given to the already mentioned inventive phase control means.
- safety-related functions such as a safe switching off of the at least one brake connection can be carried out. It is particularly favorable if this electronic switch-off element is arranged in the freewheeling branch already mentioned, whereby a safe disconnection of the phase control means and a rapid collapse of a connected holding brake can be combined.
- the symmetry may be, for example, in relation to a common electrical connection point of the rectifier devices, in particular with respect to flow directions of currents during the half-waves of the supply voltage through the rectifier devices and / or with respect to voltage potentials in the rectifier devices.
- an electronic drive circuit for driving the phase control means of the first rectifier device, in particular rectifier bridge, and the second rectifier device, in particular rectifier bridge, in which there is a symmetrical load of the supply connection is established.
- the electronic drive circuit is implemented together with the already mentioned electronic drive circuit.
- the advantage here is that a network reaction by switching on the two brake connections or switching off the two brake connections is avoidable.
- the electronic drive circuit is set up for the coupled switching of phase-gating means which act in a common half-wave of a supply voltage.
- an electronic drive circuit for example the already mentioned electronic drive circuit
- the phase control means is set up for mutual activation in different half-waves of a supply voltage of a phase control means to the first brake connection and a phase control means to the second brake connection.
- the switching load of the supply terminal by switching the brake terminals Distributable to both half-waves. It is particularly favorable if this activation takes place symmetrically in order to switch off equal portions of half-waves with the phase control.
- the phase-gating means which are activated alternately, are connected to different phases of the supply connection. In this way it is easy to achieve that the different phases are controlled or controlled by phase control.
- an electronic shutdown element for example, the aforementioned electronic shutdown element, in a common portion of a freewheeling branch, for example, the already mentioned freewheeling branch, the first brake terminal and a freewheeling branch of the second brake terminal is arranged.
- the advantage here is that the number of electronic shutdown elements can be reduced, and in a simple way, a rapid collapse of both holding brakes can be achieved if necessary. It is particularly favorable if the electronic switch-off element is arranged such that both brake terminals can be separated from the supply voltage.
- a delay device is set up for a time-delayed switching of the first brake connection and the second brake connection. This can be achieved, for example, simply by appropriate activation of the phase control means, so that in normal operation the first brake connection and the second brake connection become different Times can be energized or switched off. In this way it can be achieved that a switching noise of the brake terminals extends over a longer period of lower intensity.
- the phase-gating means and / or the already mentioned electronic drive circuit is / are supplied from a safety chain of an elevator.
- a safety chain of an elevator In this way it can be achieved that, when the safety chain is interrupted, a safe shutdown of the elevator brake activation device can be achieved automatically.
- the electronic components are used so that in the de-energized state a safe state is taken or formed.
- the rectifier devices are designed as rectifier bridges or in each case comprise a rectifier bridge.
- a first rectifier device can be designed as a first rectifier bridge and a second rectifier unit as a second rectifier bridge.
- the features of the independent, directed to a method claim are alternatively or additionally provided according to the invention.
- the brake magnets are additionally switched off with at least one electronic shutdown.
- the shutdown with a common shutdown or with two each Shutdown elements assigned to the brake magnets take place.
- additional contactors for switching the brake connection or for energizing the brake magnet are dispensable.
- a redundancy can be achieved by the at least one, preferably the phase angle control downstream electronic shutdown element, for example, the aforementioned shutdown. It is particularly advantageous if the phase control controls are performed in two branches such that different half-waves of a supply voltage from the supply connection can be influenced.
- phase control in each first branch at least two different from zero effective voltage levels to the brake magnet.
- the advantage here is that a holding current for each brake magnet against an operating current is reduced.
- the invention may provide that a transition from a higher effective voltage level to a lower effective voltage level after a predetermined time and / or after detection of a release of the at least one brake magnet is performed.
- the two brake magnets are supplied with current via a respective rectifier device, in particular rectifier bridge, in each of which at least two branches a phase control is energized, with a symmetrical load of the supply connection is achieved by the phase control of the rectifier device ,
- a respective rectifier device in particular rectifier bridge, in each of which at least two branches a phase control is energized, with a symmetrical load of the supply connection is achieved by the phase control of the rectifier device .
- This can be achieved, for example, by using phase-angle controls of the two rectifier devices, in particular rectifier bridges, which relate to the same half-wave, are executed in the same way or even identically and / or that the same proportions of half-waves are switched off by the phase control in different half-waves of a supply voltage at the supply terminal.
- a phase control in different half-waves in two different brake magnets associated branches of each rectifier device, which are connected to different phases of the supply terminal is performed. In this way, a symmetrical loading of the supply connection or at least a distribution of the network perturbations to different phases can be achieved.
- a freewheeling diode is separated from the at least one brake magnet at a shutdown of the at least one brake magnet. In this way an emergency shutdown with a quick collapse of the holding brake can be achieved.
- an elevator brake activation device according to the invention, in particular as described above and / or according to one of the claims directed to an elevator brake activation device, is used.
- Fig. 1 shows a circuit diagram of a designated as a whole by 1 Bremsenan Kunststoffs Pain. Specific details required for designing an optimally configured circuit have been omitted here to simplify the illustration.
- the elevator brake drive device 1 has a supply connection 2 from which it is supplied with a supply voltage can be supplied as AC voltage and is supplied during operation.
- the supply connection 2 is followed by a first rectifier device 3 and a second rectifier device 4.
- Each rectifier device 3, 4 is designed as a rectifier bridge and has four branches 5, 6, 7, 8, in each of which a rectifier element 9, 10, 11, 12 is arranged in a manner known per se.
- the already mentioned supply voltage is rectified and one of the first rectifier device 3, so here the first rectifier bridge, downstream first brake port 13 and one of the second equalizer 4, so here the second rectifier bridge, downstream second brake port 14th fed.
- a brake magnet 15, 16 is connected in each case in a conventional manner and connected in operation.
- Phase cutting means 22 is formed in the two branches 9, 10 of the first rectifier device 3 and the second rectifier device 4, which are each connected to different phases 18, 19 of the supply terminal 2, but with a common pole 20 of the first brake terminal 13 and the second brake terminal 14, is a Phase cutting means 22 is formed.
- this phase control means 22 is respectively realized with a control input 23, wherein the rectifier elements 9, 10 are each formed by a thyristor T1, T2, T3, T4, as can be seen from the circuit diagram.
- phase gating means 22 is therefore formed in each branch 9, 10 of the rectifier device 3, 4 on the respective rectifier element 9, 10.
- each rectifier device 3, 4 has four branches 5, 6, 7, 8 as rectifier bridge, in each of which a rectifier element 9, 10, 11, 12 is arranged.
- the branches 7, 8 of the first rectifier device 3 and the second rectifier device 4 in this case have only one rectifier element 11, 12, which is uncontrolled and unan negligencebar, so that these branches 7, 8 have no phase control means.
- the drive circuit 24 is set up in such a way that symmetrical loading of the supply connection 2 results from the activation of the phase control means 22.
- a time delay element can be provided, which provides for switching from a higher voltage level to a lower voltage level after a certain timeout.
- movement may be detected at the respective brake magnet 15, 16 to effect the transition from a high voltage level for attracting or releasing the elevator brake 17 to a lower voltage level for holding the elevator brake 17.
- a freewheeling diode 25, 26 in a respective freewheeling branch 27, 28 is arranged.
- the freewheeling branches 27, 28 thus bridge the poles 20, 21 of the respective brake connection 13 or 14 in the manner shown.
- first freewheeling branch 27 and the second freewheeling branch 28 have a common section 29, in which an electronic switch-off element 30 is arranged.
- This electronic switch-off element 30 is designed here as a field-effect transistor S2.
- circuit is redundant with respect to the brake magnets 15, 16 and thus has a symmetry with respect to a common connection point 31.
- this common connection point 31 the arrangement and interconnection of the rectifier elements 9, 10, 11, 12, the phase control means 22, the brake terminals 13, 14 and the freewheeling diodes 25, 26 are configured symmetrically with respect to a current direction and with respect to voltage potentials.
- the thyristors T1 and T2 form a first switch S1A for actuating the holding brake, the thyristors T3 and T4 a second switch S1B and the field effect transistor S2, a third electronic switch.
- a 3-channel shutdown is possible, which can be completed by a Safe Torque Off function, which reliably prevents a restart.
- the electronic driving circuit 24 is arranged such that the phase-gating means 22 in the branch 5 of the rectifier device 3 and branch 5 of the rectifier device 4 on the one hand and the phase gating means 22 in the branch 6 of the rectifier device 3 and in the branch 6 of the rectifier device 4 are mutually driven on the other hand.
- a load on the half-waves is equally distributed to the two phases 18, 19 of the supply terminal 2.
- the electronic control circuit is further configured such that, for example, the first brake port 13 is de-energized or energized before the second brake port 14, so that the brake magnets 15, 16 and thus the respective associated elevator brakes 17 switch time-shifted.
- a phase control is thus carried out on the basis of the phase control means 22 by the electronic control circuit 24.
- a first step if, for example, the elevator brakes 17 are to be released with the brake magnets 15, 16, the full power wave without phase control can be transmitted.
- the corresponding time for ventilation has elapsed or a release of the elevator brakes 17 has been detected, in each of the branches 5, 6 one will now each Half wave cut off, like this Fig. 2 shows.
- FIG. 2 a timing diagram, in which from top to bottom first the voltage curve through the brake magnet 15 at the first brake port 13, including the voltage waveform through the brake magnet 16 at the second: brake port 14 and below the drive signal for the control input 23 to the thyristor T1 of the rectifier element 9 of the first rectifier device and below which the control signal for the control input 23 are applied to the thyristor T4 of the rectifier element 10 of the second rectifier device.
- the thyristors T2 and T3 of the rectifier element 10 of the first rectifier device 3 and the rectifier element 9 of the second rectifier device 4 are not driven in this case.
- the electronic shutdown element 30 in FIG Fig. 1 can be used in two ways. On the one hand, in the case of a permeable electronic cut-off element 30, a magnetic field which has built up in the respective brake magnets 15, 16 and which has to be removed after switching off the respective brake connection 13, 14, due to the free-wheeling diodes 25, 26 be reduced delayed. This has the consequence that the elevator brakes 17 each fall slower.
- the electronic shut-off element 30 can additionally be used to interrupt the respective first free-wheel branch 27 or second free-wheel branch 28. In this way, the inertia of the magnetic field in the brake magnets 15, 16 counteracted, so that the elevator brakes 17 occur faster.
- the electronic shut-off element 30 can be used to safely switch off the brake terminals 13, 14, that is independently or in addition to the already mentioned shutdowns by driving the phase control means 22.
- both thyristors T1, T2 and T3, T4 of the phase control means 22 of the rectifier elements 9, 10 are switched to a blocking state.
- FIG. 3 shows a further embodiment of an elevator brake control device according to the invention 1.
- Components and functional units, the functional and / or constructive to components or functional units of the embodiment according to FIG. 1 and FIG. 2 are identical or similar, are denoted by the same reference numerals and not described separately again. The remarks to FIG. 1 and FIG. 2 therefore apply to FIG. 3 corresponding.
- branches 6 with the thyristors T2 and T3 are missing according to the wiring diagram according to FIG. 1 the branches 6 with the thyristors T2 and T3, and the branches 8 with the associated Diodes 11 and 12, respectively.
- the rectifier devices 3, 4 have as rectifier bridges therefore only two branches 5, 7, of which one branch 5 is a first branch with a phase control means 22 and another branch 7 is a second branch without phase control means.
- the brake terminal 13 therefore receives only a half-wave of the supply voltage or a part thereof when the thyristor T1 is ignited.
- the brake terminal 14 receives the other half-wave of the supply voltage or a part thereof when the thyristor T2 is ignited.
- symmetrical loading of the supply connection can be achieved by (temporally) symmetrical activation of the phase control means 22.
- FIG. 4 shows a further embodiment of an elevator brake control device according to the invention 1.
- Components and functional units that functionally and / or constructively to components or functional units of the embodiments according to FIG. 1 to FIG. 3 are identical or similar, are denoted by the same reference numerals and not described separately again. The remarks to FIG. 1 to FIG. 3 therefore apply to FIG. 4 corresponding.
- each rectifier device 3, 4 as a rectifier bridge three branches 5, 6, 7, wherein the opposite FIG. 1 each missing branch 8 substitute in the other rectifier device 13, 14, there as branch 7, is shared.
- the operation of the embodiment therefore differs from the embodiment according to FIG. 1 not, and it will be in ignited thyristors T1, T2, T3, T4 both half-waves both brake terminals 13, 14, respectively.
- the switch-off element 30 is arranged behind the section 29, that is to say between the section 29 and the rectifier devices 3, 4.
- These shutdown elements can each be arranged inside or outside the freewheeling branches 27, 28.
- the elevator brake control device 1 it is proposed to supply a supply voltage from a supply connection 2 via at least one rectifier device 3, 4 with rectifier elements 9, 10, 11, 12 to at least one brake connection 13, 14, wherein in at least two branches 5, 6, 7, 8 at least one rectifier device 3, 4 is arranged in each case a phase control means 22, with which an effective voltage level to the at least one brake port 13, 14 can be reduced.
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- Elevator Control (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Claims (15)
- Dispositif de commande de freinage d'ascenseur (1), avec un raccordement d'alimentation (2), avec deux dispositifs redresseurs (3, 4) montés après le raccordement d'alimentation (2) avec chacun au moins une première branche (5, 6), dans lequel un élément redresseur (9, 10) est disposé dans chaque première branche (5, 6), et avec deux raccordements de freinage (13, 14) pour un frein d'ascenseur (17) actionnable par voie électromagnétique, dans lequel un raccordement de freinage (13, 14) est chaque fois monté après un des deux dispositifs redresseurs (3, 4), caractérisé en ce qu'un moyen de découpage de phase (22) est disposé dans chacune des premières branches (5, 6) et en ce qu'au moins un élément de coupure électronique (30) est formé, avec lequel au moins un des deux raccordements de freinage (13, 14) peut être coupé.
- Dispositif de commande de freinage d'ascenseur (1) selon la revendication 1, caractérisé en ce que les deux premières branches (5, 6) sont formées avec des phases différentes (18, 19) du raccordement d'alimentation (2) et/ou en ce que le moyen de découpage de phase (22) est formé au niveau de l'élément redresseur (9, 10, 11, 12) de la première branche respective (5, 6), en particulier dans lequel l'élément redresseur (9, 10, 11, 12) est un thyristor (Tl, T2, T3, T4).
- Dispositif de commande de freinage d'ascenseur (1) selon la revendication 1 ou 2, caractérisé en ce que chaque dispositif redresseur (3, 4) comporte au moins deux, en particulier quatre, branches (5, 6, 7, 8), dans lesquelles est chaque fois disposé un élément redresseur (9, 10, 11, 12), dans lequel au moins une branche desdites au moins deux branches (5, 6, 7, 8) ne présente comme deuxième branche (7, 8) aucun moyen de découpage de phase (22) et/ou l'élément redresseur respectif (9, 10, 11, 12) dans au moins une branche desdites au moins deux branches (5, 6, 7, 8) n'est pas et/ou ne peut pas être commandé comme deuxième branche (7, 8), et/ou en ce qu'un circuit de commande électronique (24) est configuré pour une commande des moyens de découpage de phase (22), pour laquelle il se produit une charge symétrique du raccordement d'alimentation (2).
- Dispositif de commande de freinage d'ascenseur (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le ou un circuit de commande électronique (24) des moyens de découpage de phase (22) est configuré pour fournir au moins deux niveaux de tension effectifs différents, différents de zéro, audit au moins un raccordement de freinage (13, 14).
- Dispositif de commande de freinage d'ascenseur (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'une diode de roue libre (25, 26) est disposée au niveau dudit au moins un raccordement de freinage (13, 14), en particulier dans lequel l'élément de coupure électronique (30) est disposé dans une branche de roue libre (27, 28) contenant la diode de roue libre (25, 26) et/ou en ce que l'élément de coupure électronique (30) est un transistor à effet de champ (S2).
- Dispositif de commande de freinage d'ascenseur (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'un des deux dispositifs redresseurs (3, 4) est un premier dispositif redresseur (3) et un autre des deux dispositifs redresseurs (3, 4) est un deuxième dispositif redresseur (4) et en ce que la première branche (5, 6) du deuxième dispositif redresseur (4) est configurée symétriquement à la première branche du premier dispositif redresseur (3).
- Dispositif de commande de freinage d'ascenseur (1) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le ou un circuit de commande électronique (24) est configuré pour une commande des moyens de découpage de phase (22) du premier dispositif redresseur (3, 4) et du deuxième dispositif redresseur (4), pour laquelle il se produit une charge symétrique du raccordement d'alimentation (2).
- Dispositif de commande de freinage d'ascenseur (1) selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le ou un circuit de commande électronique (24) des moyens de découpage de phase (22) est configuré pour une commande alternée, de préférence symétrique, en particulier en demi-ondes différentes d'une tension d'alimentation, d'un moyen de découpage de phase (22) pour le premier raccordement de freinage (13) et d'un moyen de découpage de phase (22) pour le deuxième raccordement de freinage (14), en particulier qui sont raccordés à différentes phases du raccordement d'alimentation.
- Dispositif de commande de freinage d'ascenseur (1) selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les deux raccordements de freinage (13, 14) peuvent être coupés en même temps avec l'élément de coupure électronique (3) et/ou en ce que l'élément de coupure électronique (30) est disposé dans une partie commune (29) de la ou d'une branche de roue libre (27) du premier raccordement de freinage (13) et d'une branche de roue libre (28) du deuxième raccordement de freinage (14).
- Dispositif de commande de freinage d'ascenseur (1) selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'un dispositif de retard est configuré pour une connexion temporellement décalée du premier raccordement de freinage (13) et du deuxième raccordement de freinage (14) et/ou en ce que les dispositifs redresseurs (3, 4) sont réalisés chacun sous la forme de ponts redresseurs ou comprennent chacun un pont redresseur.
- Procédé de commande d'un frein d'ascenseur (17), dans lequel deux aimants de freinage (15, 16) du frein d'ascenseur (17) sont alimentés en courant à partir d'un raccordement d'alimentation (2) chacun via un dispositif redresseur (3, 4) présentant chaque fois une première branche (5, 6), dans lequel un élément redresseur (9, 10) est disposé dans chaque première branche (5, 6), caractérisé en ce que l'on exécute dans chacune des premières branches (5, 6) une commande de découpage de phase, dans lequel lors d'une coupure des aimants de freinage (15, 16) avec la commande de découpage de phase, on coupe en outre les aimants de freinage (15, 16) avec au moins un élément de coupure électronique (30).
- Procédé selon la revendication 11, caractérisé en ce que l'on règle par les commandes de découpage de phase dans chaque première branche (5, 6) au moins deux niveaux de tension effectifs différents de zéro au niveau des aimants de freinage (15, 16).
- Procédé selon la revendication 11 ou 12, caractérisé en ce que les deux aimants de freinage (15, 16) sont alimentés en courant de façon redondante via respectivement un dispositif redresseur (3, 4), dans lequel une commande de découpage de phase est exécutée chaque fois dans au moins deux branches (5, 6, 7, 8), dans lequel, par les commandes de découpage de phase, en particulier en demi-ondes différentes d'une tension d'alimentation au raccordement d'alimentation (2), des dispositifs redresseurs (3, 4), on atteint une charge symétrique du raccordement d'alimentation (2).
- Procédé selon l'une quelconque des revendications 11 à 13, caractérisé en ce que l'on exécute une commande de découpage de phase en demi-ondes différentes dans deux branches de chaque dispositif redresseur (13, 14) associées à des aimants de freinage différents (15, 16), qui sont raccordées à des phases différentes (18, 19) du raccordement d'alimentation (2).
- Procédé selon l'une quelconque des revendications 11 à 14, caractérisé en ce que, lors d'une coupure des deux aimants de freinage (15, 16), on sépare en outre chaque fois une diode de roue libre (25, 26) des aimants de freinage (15, 16) et/ou en ce que l'on utilise un dispositif de commande de freinage d'ascenseur (1) selon l'une quelconque des revendications 1 à 10.
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EP16000542.7A EP3216734B1 (fr) | 2016-03-07 | 2016-03-07 | Dispositif de commande de freinage d'ascenseur et procede de commande d'un frein d'ascenseur |
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EP16000542.7A EP3216734B1 (fr) | 2016-03-07 | 2016-03-07 | Dispositif de commande de freinage d'ascenseur et procede de commande d'un frein d'ascenseur |
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EP3216734B1 true EP3216734B1 (fr) | 2018-07-18 |
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JPH02110090A (ja) * | 1988-10-18 | 1990-04-23 | Mitsubishi Electric Corp | エレベータ制御装置 |
FR2873871B1 (fr) * | 2004-07-29 | 2006-11-24 | Moteurs Patay Soc Par Actions | Dispositif pour l'alimentation electrique d'un frein |
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