Adapter module, adapter system and power supply system for electrical systems

Description

Adapter module, adapter system and power supply system for electrical systems DESCRIPTION The present invention relates to a relay adapter module. 5 electromechanical. In particular, the present invention relates to a adapter module to integrate operational functionality into an existing relay electromechanical type with logical load control functions electrical, such as SET, where all the connected electrical loads the adapter is powered by a power supply, or RESET, 10 where all electrical loads connected to the adapter are disconnected from the power supply. Relays are devices which, when controlled by a circuit power supply, determine a variation in one or more circuits connected to them Servo-controlled. A particular category of relays are called electromechanical relays. 15 for their operating principle, in particular they are devices comprising an electromagnet, such as a coil, whose magnetic field when it is subjected to current variations, for example through variations in the power supply upstream of the circuit, it modifies its positioning involving the tripping of one or more switches, which 20 will consequently modify the layout of the relevant circuit. Typically, when there is a need to control from more than one points the circuit to which the relay is connected, such as for a system for lighting of a domestic or industrial user, relays are used step-by-step type. A further different type of relay is the electronic one, 25 as they are equipped with active solid-state circuit components, i.e. voltage or current controlled, which allow for quick and to reliably control a plurality of loads by one or more command points. The Applicant therefore noted the need to order 5 the power supply of a plurality of loads through a single point of command. The Applicant has therefore noted the need to provide the systems existing electrical systems equipped with relays with additional functions. In the context of this need, the Applicant has realised that the possibility 10 to disconnect a plurality of loads by operating a single point of command can simplify the way you use the system. In the context of this need, the Applicant has realised that the possibility to connect a plurality of loads by operating a single control point can simplify the way you use the system. 15 The technical problem underlying this invention is therefore that of make available a structurally and functionally designed to at least partially obviate one or more of the drawbacks complained of with reference to the cited prior art. In the context of this problem, it is an object of the present invention to 20 make an adapter module for electromechanical relays including the logical reset function. In particular, the logical reset function is aimed at to the possibility of disconnecting a plurality of electrical loads by means of the operation of a single control point. In the context of this problem, it is an object of the present invention to 25 make an adapter module for electromechanical relays including the set logical function. In particular, the set logical function is aimed at the possibility of powering a plurality of electrical loads by means of the operation of a single control point. A further object of the present invention is to provide a module 5 adapter for electromechanical relays comprising only passive electronic components. An object of the present invention is to provide an adapter module indicating the presence of powered electrical loads. Another object of the present invention is to provide an adapter module 10 economical and certainly reliable to use. This problem is solved and at least one of these goals is at least partially achieved by the invention, in a first aspect, by means of a adapter module comprising a plurality of first terminals connection configured to connect the adapter module to a 15 electrical circuit. Preferably, the electrical circuit comprises at least one load, a corresponding control button, a reset button and a button of set. Preferably, the adapter module comprises a plurality of second connection terminals configured to connect the adapter module to 20 an electromechanical relay. Preferably, the adapter module includes a control circuit. Preferably the control circuit comprises a monostable relay and a plurality of passive electronic devices. Preferably the devices passive electronics are operationally interconnected to the monostable relay. 25 Preferably the first and second connection terminals are interconnected to the control circuit. Preferably the monostable relay comprises a first switching device control and a switch. Preferably the switch is of the type diverter. Preferably the switch is operated by the first switching device 5 command. Preferably the monostable relay is configured in such a way that assume a rest configuration and an operating configuration. Preferably, according to the rest configuration the device command is de-energized and the diverter interconnects the set button with 10 the electromechanical relay. Preferably, according to the operating configuration the first device command is powered and the diverter includes a branch that interconnects the reset button to the electromechanical relay. Preferably the control circuit is configured in such a way that, a 15 Following the reset button power supply, a switch is allowed of electrical current between the electromechanical relay and the reset button only when the monostable relay is in the operating configuration. Preferably the control circuit is configured in such a way that, a following the pressing of the set button, a transition takes place 20 electric current both when the monostable relay is in the configuration operational both when it is in the sleep configuration. Preferably, the control circuit is configured so that, a following the pressing of the set button, a transition takes place current only when the monostable relay is in the configuration of 25 rest. Thanks to these features it is possible to control a circuit of power supply so as to selectively power a relay electromechanical. Thanks to these features it is possible to connect the adapter module to an existing electromechanical relay. 5 As previously mentioned, the control circuit is advantageously configured in such a way that, following of the reset button operation, a passage of electric current in the first switch only when a relay monostable is in the operating configuration, so that the at least 10 a load, or all electrical loads connected to the adapter module if there are multiple loads, they are / are not powered, that is disconnected from the electrical supply by which they are operated. In a further aspect, the present invention also relates to to an adapter system for implementing a reset function and 15 of sets to a plurality of electromechanical relays. Preferably the adapter system includes a reset device including a reset button configured to operate simultaneously each electromechanical relay. Preferably the adapter system comprises a set device 20 including a set button configured to operate simultaneously each electromechanical relay. Preferably the adapter system comprises a plurality of modules adapters. Preferably each adapter module is configured for be operationally interconnected to each electromechanical relay, at 25 set device and reset device. Thanks to these features the adapter system is implemented with Selective set and / or reset logic functions. Thanks to these features the adapter system is interconnectable to a plurality of relays electromechanical. 5 Under a third aspect, the present invention relates to a power supply system for electrical installations comprising a plurality of electromechanical relays configured to operate respective electrical loads. Preferably each electromechanical relay includes a second switch and a second opening and closing control device 10 of the same second switch. Preferably each relay is interconnected to a related switching device command. Preferably the control device comprises a button configured to independently operate the second device 15 command so as to open or close the second switch for power on or off the electrical load. The power system includes a power source. The power system includes an adapter system. Thanks to these characteristics the power supply system supplies 20 selectively implement electromechanical relays at all loads interconnected to the relevant electromechanical relays set and reset logics. The adapter system and the power supply system allow you to obtain the same advantages illustrated in reference to the first aspect. The invention, as defined by each of the preceding aspects, may 25 exhibit one or more of the following additional characteristics. Preferably, passive electronic devices are diodes. This characteristic allows to contain the costs of the adapter module while still orienting appropriately the power system currents. Preferably, passive electronic devices comprise a first 5 diode interconnected in series with the reset button and being polarized in such a way as to allow the passage of electric current from the reset button on the diverter. Thanks to this feature the electromechanical relay can be powered by a unidirectional current. 10 Preferably, the plurality of passive electronic devices comprises a second diode is counter-biased with respect to the first diode and is connected in series to the first diode when the monostable relay assumes the configuration of rest. Thanks to this feature, the power supply to the relays is prevented. 15 electromechanical if the electrical load is not powered, in particular in so as to power the second control device of the relevant relay electromechanical only to send a shutdown command. Preferably, when the monostable relay assumes the configuration operational the second diode is interconnected in parallel to the branch. 20 Preferably the first diode, the second diode and the branch have a common node. Thanks to these features, an alternative current passage is offered to the second diode. In particular, so as to allow, regardless of the configuration assumed by the monostable relay, of 25 power the second control device of the relevant relay electromechanically by means of the respective control button, i.e. both for to power both to disconnect the electrical load. Preferably, passive electronic devices include a third diode connected in series to the first control device. This feature 5 allows unidirectional power supply to the first control device. Preferably, the reset button is connected in parallel to a signaling device. Preferably the reset button is connected in parallel to a fifth diode polarized in such a way as to allow the passage of current towards 10 the switch, the fifth diode and the signaling device are overall in parallel with the reset button. These features allow the presence of loads to be signalled electric powered in the power system. Preferably, each control button is connected in parallel to a 15 second signaling device. Preferably the control button is connected in parallel to a sixth diode polarized in such a way as to allow the passage of current towards the diverter, the sixth diode and the second signaling device are overall in parallel with the control button. 20 These features allow the power supply to be signalled relative electrical load, powered by the operation of the relative command button. Preferably, the signalling device and / or the second signalling device signaling includes a warning light. This feature allows you to 25 assist the user in identifying the presence of loads fed. Preferably, passive electronic devices comprise a quarter diode interconnected in series with respect to the set button and being polarized in such a way as to allow the passage of electric current from the 5 diverter to the set button. Preferably the adapter system comprises a plurality of devices reset. This feature allows you to disconnect all electrical loads from a plurality of points, for example physically located in distant positions between them, thus making it easier for users. 10 Preferably the adapter system comprises a plurality of devices of set. This feature allows you to power all electrical loads from a plurality of points, for example physically located in distant positions between them, thus making it easier for users. Thanks to this feature, the passage of current is permitted 15 one-way in the set button. Preferably the first control device is interconnected in series with an electrical resistance. Thanks to this feature it is possible to limit overvoltages during powering on and off the first control device. 20 Preferably the power source comprises a phase line and a neutral line, preferably the phase line feeds the system of power supply interconnecting between the second switch and the second control device of the related electromechanical relay. This feature allows the operational independence of the 25 power system control logic functions, in particular, set, reset and push-button operation of the relevant load electric. In some embodiments of the invention, the second switch, the first control device and the electrical load are powered by a 5 first power source. Preferably the first power source power supply operates at a first electrical supply voltage. Preferably, the second control device, the diverter, the reset device, control device and set device are powered by a second power source. Preferably the 10 second power source operates at a second voltage of power supply. Preferably the first supply voltage and the supply voltage are different. These features allow the power system to operate at different voltages, thus isolating the circuits from each other and sizing the 15 related components for the actual operating voltages, thus avoiding oversizing. Further features and advantages of the invention will be made clearer from the description of the adapter for electromechanical relays and the system of power supply object of the invention, illustrated for indicative purposes only and not 20 limiting in the attached drawings where: - Figure 1 shows an electrical diagram of the electrical adapter in question of the present invention; - Figure 2 illustrates one embodiment of the electrical system object of the invention; 25 - Figures 3 and 4 illustrate a further embodiment of the electrical system and the electrical adapter in question respectively of the invention. In figures 1 and 2, 1 indicates the relay adapter system electromechanical 100 and 10 the adapter module, and with 30 the system of 5 power supply according to the present invention. The power supply system 30 comprises a plurality of relays 100 of the type electromechanical stepper type, one power line A, implicitly including a phase line L and a related phase line neutral N of the electric current, a plurality of control devices P, 10 P each configured to operate a related relay 100 connected to a respective electrical load Z and to the adapter system 1, as will be described in more detail below. In preferred embodiments, the adapter module 10 comprises a plurality of connection terminals 21, 22, 23, 24, 25, 26 configured for 15 connect the same adapter module 10 to an electrical circuit 200 comprising a respective electrical load Z, a respective switching device command, a set device S and a reset device R. Preferably the adapter module 10 comprises second terminals of connection 31, 32, 33 configured to connect the same module 20 adapter 10 to the corresponding electromechanical relay 100. As illustrated in Figure 1, in some embodiments, the adapter module 10 comprises a control circuit 12 comprising a monostable relay 11 and a plurality of passive electronic devices D1, D2, D3, D4. 25 Each adapter module 10 is interconnected between the relevant relay 100 and the respective P control devices in such a way as to integrate their traditional operation with different control logics for the power supply of the related electrical loads Z. Note that each control device P includes a respective 5 control button 104 to operate the relevant electromechanical relay 100 in such a way as to power or disconnect the respective electrical load Z. Electrical loads Z are, for example, identifiable as appliances lighting in both residential and industrial settings, while being It is clear that the same concepts can also be applied in the case 10 of other loads, such as the drive system of a roller shutter motorized. Each electrical load 100 advantageously comprises a device of control T2 and a respective switch I2 operated by it and therefore subservient to it. As will be illustrated in greater detail below, 15 the present invention may use additional control devices and related switches and, consequently, the T2 control device and the respective switch I2 of the electromechanical relay 100 will be indicated as secondary control device T2 and secondary switch I2. In preferred embodiments, the second control device T2 is 20 an electromagnet which, when powered by the passage of electric current alternately activates the closing or opening of the second switch I2. As shown in figure 1, the phase line L is connected to each electromechanical relay between the second switch I2 and the related second control device T2. 25 Furthermore, each relative electrical load Z is connected in series to the relative secondary switch I2 of the respective electromechanical relay 100 and also interconnected to the neutral line N. Advantageously, the adapter system 1 of the present invention can comprise one or more reset devices R each operationally 5 interconnected to each electromechanical relay 100 via respective modules adapters 10. In preferred embodiments, the reset device R It also includes an interconnected reset button 101 overall in parallel with respect to the series connection of a signalling device 12, if present, and a respective 10 diode D5. Advantageously, the adapter system 1 of the present invention can comprise one or more set devices each operationally interconnected to each electromechanical relay 100 via respective modules adapters 10. 15 Preferably, each adapter module 10 is configured alternatively to allow or prevent the circulation of current electric in the second control device T2. Each monostable relay 11 comprises a first control device T1 and a first switch I1 operated by the same first control device T1 and therefore to 20 it is slaved. The monostable relay 11 is, for example, made by means of an optotriac. More precisely, the first switch 11 is made as a diverter 11, i.e. a switch that short-circuits alternately a first pair of be terminals or a second pair of bd terminals in in such a way as to modify the circuit layout according to the logic described 25 below. The monostable relay 11 can be configured alternatively according to a rest configuration and an operating configuration. In particular, according to the rest configuration, the first device of command T1 is not powered and the diverter I1 interconnects electrically the second control device T2 with the set device 5 S by short-circuiting the first pair of terminals b and d. While according to the operational configuration the T1 control device is powered and activates the diverter I1 in such a way as to electrically interconnect the second control device T2 with a branch 106 directly interconnected with the reset device R and with the related reset device 10 P command by short-circuiting the second pair of terminals b and d. Each control device P includes a control device signalling 103, a sixth diode D6 and a related control button 104. In preferred embodiments, the signaling device 103 and the sixth diode D6 are arranged in series with each other and 15 in total in parallel with the relative control button 104. Adapter 1 also includes a unique S-set device operationally interconnected to each electromechanical relay 100 by means of the same adapter modules 10. The S set device comprises a 105 set button and a fourth diode 20 D4s connected in series to each other. The fourth diode D4 is biased in in such a way as to allow the passage of electric current from each relay electromechanical 100 to set button 105. In some embodiments, each adapter module includes a second diode D2 arranged in parallel to the second branch 25 106 when the monostable relay 11 assumes the operational configuration, that is, when the second pair of terminals b and d are short-circuited. The second Diode D2 is biased to allow current to pass through electrical from the second control device T2 to the reset device R and to the relevant control device P. 5 Therefore, when the switch 11 short-circuits the second pair of terminals bd, i.e. when the first control device T1 is powered, yes They have two available paths to allow the passage of current electric, in particular branch 106 which allows bi-directional passage of current between second control device T2 and reset device R, 10 and the diode D2, which allows the unidirectional passage of current. If the monostable relay 11 assumes the rest configuration, i.e. in where the switch 11 short-circuits the first pair of terminals be, the current electricity can flow unidirectionally, due to the presence of the fourth diode D4, from the second control device T2 to the set device S by means of 15 the first pair of terminals bc, short-circuited if the set button 105 is activated. Also, when the monostable relay 11 takes the idle configuration, electric current can flow unidirectionally from the second control device T2 to the relevant one control device P, due to the presence of the second diode D2, if the 20 the relevant control button is pressed. In some preferred embodiments, the adapter module 10 comprises a first diode D1 polarized in such a way as to allow the unidirectional current flow from the same reset device R to the diverter 11. More precisely, the second diode D2, the relative 25 control device P, the first diode D1 and the branch 106 share a common node C. The first control device T1 is interconnected in parallel to the relevant electrical load Z so that it is always powered if the the relative electrical load Z is powered, i.e. if the switch I2 5 is closed. In preferred embodiments, each connection module 10 includes a third diode D3 interconnected in series with the relative first control device T1 so as to allow the passage unidirectional current. 10 More precisely according to the described configuration of the scheme circuit of the adapter module 1 and the power supply system 30, Pressing the reset button 101 allows the current to pass to power the second control device T2 only if the monostable relay 11 assumes the operational configuration, i.e. if the 15 switch I1 short-circuits the second pair of terminals bd, i.e. only if switch I2 is closed and allows power supply of the relative load Z. In fact, the related second control device T2 of the related relay electromechanical 100 must be powered by the drive of the 20 reset button 101 only when the relevant electrical load Z is actually powered by the electrical power source A, i.e. if the bd terminals are short-circuited and supply branch 106 as alternative path for the current, so as to avoid conflict between the first diode D1 and second diode D2, which are mutually counter-biased. 25 If the reset button 101 is operated by monostable relay 11 assuming the rest configuration, that is when the relative load electric Z is not powered and when the first pair of terminals be is short-circuited, then the second control device T2 cannot be powered because the only available path for the current meets the 5 conflict between the opposite unidirectionality of the circulating currents between the first diode D1 and second diode D2. The operation of adapter module 1, adapter system 1 and the power supply system 30 according to the present invention is described in the following. 10 It is considered an initial condition in which the second switch I2, i control buttons 104 of the related control devices P, the control button reset 101 and set button 105 are all open, and therefore the loads Z electrics are de-energized. By pressing a control button 104, electric current flows. 15 from the phase line L which supplies the second control device T2, sliding in the second diode D2 and crossing the same button command 104 closing on the neutral line N. Powering the second control device T2 involves the closing of the second switch I2. The closing of the second switch 20 I2 allows the phase line L to simultaneously power the relative load Z and consequently the first control device T1 interconnected to it in parallel. The power supply of the first device command T1 causes the monostable relay 11 to assume the configuration operational, i.e. where the switch I1 short-circuits the second pair of 25 bd terminals, thus providing an additional path, namely branch 106, compared to the unidirectional one provided by the second diode D2, for the passage of current. By pressing the control button 104 of a relay again electromechanical 100 powering the electrical load Z previously 5 powered, the second power supply device T2 is powered again and therefore the second switch I2 is opened bringing the monostable relay 11 from operating configuration to configuration rest, i.e. where the switch I1 short-circuits the first pair of terminals be. 10 The preparation of the signalling device 102, in parallel with to the reset button 101, and a signalling device 103, in parallel to each respective control button 104, allows the emission of related signals, for example of a luminous type. In particular, the device of signalling 103, which for example can be made by an LED 15 mounted on the control button itself, it is automatically operated if the relevant electrical load Z is powered by the relevant relay electromechanical 100. At the same time the signalling device 102, which can also be made for example by an LED mounted on the reset button itself, is automatically activated if any 20 electrical load Z is powered. By pressing the reset button 101 the corresponding seconds T2 control devices of relays 100 are powered only when the related monostable relay 11 assumes the operating configuration. In particular, if the monostable relay 11 assumes the configuration of 25 rest, i.e. the switch I1 short-circuits the first pair of terminals be, there is no current flow in the second control device T2 although by pressing the reset button 101, as branch 106 is open circuit due to the positioning of the switch I1 and because the first diode D1 and the second diode D2 are interconnected in series and counter-biased 5 mutually. Furthermore, if the monostable relay 11 assumes the operational configuration, that is, the switch I1 short-circuits the second pair of terminals bd, the reset button 101, if pressed, allows power to be supplied to each second control device T2 thus controlling only the 10 Disconnection from power source A of each load electric Z. Furthermore, if the monostable relay 11 assumes the rest configuration, that is, the switch 11 short-circuits the first pair of terminals be, the relative electrical load Z is not powered and by pressing the set button S 15 each second control device T2 is powered by operating the closing of the second switch I2. Consistently, the set device S cannot power the electromechanical relays 100 in which the relevant relay monostable 11 assumes the operational configuration, i.e. short-circuiting the pair of second terminals bd, since the relative load Z is already 20 powered. In some embodiments, such as that illustrated in Figure 4, the power supply system 30 is powered by a first source of power supply A1 and a second power source A2 operating to a first voltage V1 and to a second voltage V2 which are different 25 mutually. In particular, each first control device T1 of the relative monostable relay 11, each second switch I2 of the related relay 100, each electrical load Z and each third diode D3 operate at the first operating voltage V1 and are powered by the first power source A1. 5 According to the same embodiment, each second device of command T2, each switch I1, the branch 106, the first diode D1, the reset device R, each control device P and the reset device set S operate at the second voltage V2 and are powered by the second power source A2. 10 In particular, the operation follows what was described previously, the circuit powered by the power source A2 acts as a circuit merely to control the circuit powered by the source of power supply A1, which supplies or does not supply the relative load Z connected to the respective electromechanical relay 100.

Claims

1. Adapter module (10) comprising: - a plurality of first connecting terminals (21, 22, 23, 24, 25, 26) configured to connect said adapter module (10) to a 5 electrical circuit (200) comprising at least one load (Z), a relative control button (104), a reset button (101) and a set button (105); - a plurality of second connection terminals (31, 32, 33) configured to connect said adapter module (10) to a relay 10 electromechanical (100); - a control circuit (12) which includes a monostable relay (11) and a plurality of passive electronic devices (D1, D2, D3, D4) operationally interconnected to said monostable relay (11), said first and second connecting terminals being connected to said 15 control circuit (12); wherein said monostable relay (11) comprises a first switching device command (T1) and a diverter (I1) operated by said first device of command (T1), said monostable relay (11) being configured in in such a way as to assume a rest configuration in which the said 20 first control device (T1) is de-energized and in which said switch (I1) interconnects said set button (105) with said relay electromechanical (100), and an operating configuration in which said first control device (T1) is powered and called diverter (I1) comprises a branch (106) which interconnects said reset button 25 (101) with said electromechanical relay (100); said control circuit (12) being configured in such a way that, following the powering of said reset button (101), it is allowed the passage of electric current between said relay electromechanical (100) and said reset button (101) only 5 when said monostable relay (11) is in said operating configuration, and being further configured in such a way that, following when the control button (104) is pressed, a passage of electric current both when said monostable relay (11) is in said operating configuration both when it is in said configuration 10 of rest, and being further configured in such a way that, a following the activation of the said set button (105), a passage of electric current only when said relay monostable (11) is in said rest configuration.

2. Adapter module (10) according to claim 1, wherein said 15 plurality of passive electronic devices (D1, D2, D3, D4) includes a first diode (D1) interconnected in series with respect to said button reset (101) and being polarized in such a way as to allow the passage of electric current from said reset button (101) to said diverter (I1). 20 3. Adapter module (10) according to claim 2, wherein said plurality of passive electronic devices (D1, D2, D3, D4) includes a second diode (D2) counter-biased with respect to said first diode (D1) and connected in series to said first diode (D1) when said relay monostable (11) assumes said rest configuration. 25 4. Adapter module (10) according to claim 3, wherein when said monostable relay (11) assumes said operating configuration said second diode (D2) is interconnected in parallel to said branch (106).

5. Adapter module (10) according to claim 4, wherein said first 5 diode (D1), said second diode (D2) and said branch (106) have a common node (C).

6. Adapter module (10) according to one of the preceding claims, in where said plurality of passive electronic devices (D1, D2, D3, D4) comprises a third diode (D3) connected in series to said first 10 control device (T1).

7. Adapter module (10) according to one of the preceding claims, in where said reset button (101) is connected in parallel to a signaling device (102).

8. Adapter module (1) according to claim 7, wherein said button 15 of reset (101) is connected in parallel to a fifth diode (D5) polarized so as to allow the passage of current towards said diverter (I1), said fifth diode (D5) and said device reporting (102) being overall in parallel with respect to called reset button (101). 20 9. Adapter module (10) according to claim 7 or 8, wherein said signaling device (102) includes a warning light.

10. Adapter module (10) according to claim 1, wherein each said plurality of passive electronic devices (D1, D2, D3, D4) comprises a fourth diode (D4) interconnected in series with respect to the said 25 set button (105) and being polarized in such a way as to allow the passage of electric current from said diverter (I1) to said set button (101).

11. Adapter system (1) for implementing reset and set functions to a plurality of electromechanical relays (100) comprising: 5 - a reset device (R) comprising a reset button (101) configured to operate each relay simultaneously electromechanical (100); - a set device (S) comprising a set button (105) configured to operate each relay simultaneously 10 electromechanical (100); - a plurality of adapter modules (10) made according to a any of the preceding claims, where each of said adapter modules (10) is configured to be operationally interconnected to each electromechanical relay (100), to said 15 reset device (R) and said set device (S).

12. Power supply system (30) for electrical systems comprising: − a plurality of electromechanical relays (100) configured to operate respective electrical loads (Z), each said electromechanical relay (100) comprising a second switch (I2) and a second 20 control device (T2) for opening and closing said second switch (I2), each said relay (100) being further interconnected to a control device (P) each comprising a corresponding control button (104) configured to independently operate each said second device 25 command (T2) so as to open or close the relative second switch (I2) to power or disconnect the said respective electrical load (Z); − at least one power source (A1, A2); − an adapter system (A) according to claim 11. 5 13. Power supply system (30) according to the previous claim, wherein said second switch (I2), said first switching device command, said electrical load (Z) are powered by a first power source (A1) operating at a first voltage electric (V1), and wherein said second control device (T2), said 10 diverter (I1), called reset device (R), called reset device command (P), said set device (S) are powered by a second power source (A2) operating at a second electrical voltage (V2).