JP2005249026A - Control device of solenoid valve manifold - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make operation confirmation test on a solenoid valve while preventing any increase in size of a solenoid valve manifold by improving the reliability and durability of a control device for controlling the operation of the solenoid valve manifold. <P>SOLUTION: This control device controls the respective solenoid valves of the solenoid valve manifold 10 where two or more solenoid valves 12 are collected and disposed by switching between an auto mode of operating the solenoid valves according to a control signal from a main controller and a manual mode of manually operating the same by use of change-over switches 38a to 38h. A solenoid valve control unit 22 includes: a signal output circuit for outputting an on-off signal according to an on-off signal from a relay unit 23; and a valve driving circuit for outputting a drive signal to the solenoid valve 12 according to the signal from the signal output circuit, and an on-off manual signal is output to the valve driving circuit from a switching unit 24. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an electromagnetic valve manifold control apparatus that performs an operation confirmation test of each electromagnetic valve in an electromagnetic valve manifold in which a plurality of electromagnetic valves are arranged and arranged.

  In a production line for manufacturing industrial products, many fluid pressure operating devices such as a pneumatic cylinder using a fluid such as compressed air as a working medium are used. The pressure of the fluid supplied to the fluid pressure operating device is controlled by a pressure control valve, and the flow rate is controlled by a flow control valve. Furthermore, a directional control valve, that is, a flow path switching valve is used to control supply and stop of supply of fluid from a fluid pressure source to the fluid pressure operating device. Each valve operation type includes manual operation by manpower and electromagnetic operation using an electromagnet. However, when it is necessary to automatically control the operation of fluid pressure operation equipment as in the production line, the electromagnetic operation An electromagnetic valve that operates the valve is used.

  In the case where a plurality of fluid pressure actuated devices are incorporated in the manufacturing apparatus constituting the production line, a plurality of solenoid valves are used to control the fluid supplied to each fluid pressure actuated device. Therefore, in order to simplify the transmission of the control signal to each solenoid valve, a solenoid valve manifold in which a plurality of solenoid valves are assembled is used. Each solenoid valve is arranged away from the position of the solenoid valve manifold and is controlled by a control signal from a main controller such as a sequencer. For example, when a control signal for controlling the operation of each solenoid valve is output as a serial signal from the main controller, an S / P converter is arranged near the solenoid valve manifold to convert the serial signal into a parallel signal. A control signal is sent to each solenoid valve. As described above, when a signal is transmitted as a serial signal to the vicinity of the solenoid valve manifold, the signal line having a long distance can be formed into one or two pairs of cables. However, when a parallel signal is output from the sequencer, a control signal is sent to the solenoid valve as it is.

  As described above, when the solenoid valve manifold is used in an industrial product production line, it is necessary to perform a test for confirming the operation of the solenoid valve after installation on the production line or after replacement of parts. Since the solenoid valve manifold is installed at a position away from the main controller, it is inconvenient to perform this operation confirmation test by outputting a control signal from the main controller.

In order to check the connection state and operating state of the pressure control valve, for example, as described in Patent Document 1, a switch unit having a plurality of manual operation switches is provided between the serial unit and the solenoid valve, There is a control device that is operated by a manual switch to a control position for connecting the output terminal of the serial unit and the solenoid valve and a check position for connecting to the power supply terminal.
Japanese Patent No. 3437300

  As described above, when switching between the control position for transmitting the control signal from the main controller to the solenoid valve by the manual operation switch and the check position for directly connecting the solenoid valve to the power source, the contact wear of the manual operation switch is required. If a failure occurs, the control signal cannot be transmitted to the solenoid valve. On the other hand, the operation of the solenoid valve is only tested after the solenoid valve has been installed on the production line or after parts have been replaced. A switch is never used, and installing a manual operation switch in the solenoid valve manifold at all times requires a large installation space, which only increases the size of the solenoid valve manifold including the manual switch. This increases the manufacturing cost.

  An object of the present invention is to improve the reliability and durability of a control device that controls the operation of a solenoid valve manifold.

  Another object of the present invention is to enable a solenoid valve operation confirmation test to be performed while avoiding an increase in the size of the solenoid valve manifold.

  Another object of the present invention is to enable a changeover switch unit having a manual operation switch to be attached to and detached from a control device without disconnecting or stopping a control signal from a main controller.

  According to the electromagnetic valve manifold control device of the present invention, an electromagnetic valve manifold that performs on / off control of each electromagnetic valve in an electromagnetic valve manifold unit formed by collectively arranging a plurality of electromagnetic valves based on a control signal from a main controller. A relay unit that outputs an on / off control signal to each of the solenoid valves based on a control signal from the main controller, and an on / off signal based on the on / off signal from the relay unit. A solenoid valve control circuit comprising a signal output circuit for outputting and a valve drive circuit for outputting a drive signal to the solenoid valve based on a signal from the signal output circuit is provided corresponding to each solenoid valve. Regardless of the solenoid valve control unit and the on / off control signal output from the relay unit, the valve drive And having a switching unit changeover switch is provided corresponding to each of said solenoid valve for outputting an on-off of the manual signal to road.

  According to the electromagnetic valve manifold control device of the present invention, an electromagnetic valve manifold that performs on / off control of each electromagnetic valve in an electromagnetic valve manifold unit formed by collectively arranging a plurality of electromagnetic valves based on a control signal from a main controller. A relay unit that outputs an on / off control signal to each of the solenoid valves based on a control signal from the main controller, and an on / off signal based on the on / off signal from the relay unit. A solenoid valve control circuit comprising a signal output circuit for outputting and a valve drive circuit for outputting a drive signal to the solenoid valve based on a signal from the signal output circuit is provided corresponding to each solenoid valve. Regardless of the on / off control signal output from the relay unit. The connector switching unit changeover switch which outputs an on-off of the manual signal to the drive circuit is provided corresponding to each of the solenoid valve is connected, characterized in that provided on the solenoid valve control unit.

  According to the electromagnetic valve manifold control device of the present invention, an electromagnetic valve manifold that performs on / off control of each electromagnetic valve in an electromagnetic valve manifold unit formed by collectively arranging a plurality of electromagnetic valves based on a control signal from a main controller. A signal output circuit that outputs an on / off signal based on a control signal from the main controller, and a valve drive circuit that outputs a drive signal to the electromagnetic valve based on a signal from the signal output circuit Regardless of the control signal from the main controller, the solenoid valve control circuit provided corresponding to each of the solenoid valves, and the on / off manual signal to the valve drive circuit The changeover switch for output has a changeover unit provided corresponding to each of the solenoid valves. And it features.

  The control apparatus for a solenoid valve manifold according to the present invention is characterized in that the solenoid valve control unit is assembled to the solenoid valve manifold unit or separately disposed.

  The controller for a solenoid valve manifold according to the present invention is characterized in that the switching unit is detachably attached to the solenoid valve control unit.

  The control apparatus for a solenoid valve manifold according to the present invention is characterized in that the switching unit is assembled to the solenoid valve control unit.

  The control apparatus for a solenoid valve manifold according to the present invention is characterized in that the relay unit and the switching unit are assembled to the solenoid valve control unit.

  In the solenoid valve manifold control device according to the present invention, the signal output circuit includes a transistor or a logic element that outputs a signal based on an ON signal from the relay unit, and the valve drive circuit is turned ON from the signal output circuit. It has a transistor which outputs a valve drive signal to the solenoid valve based on a signal.

  The control device for a solenoid valve manifold according to the present invention provides the valve drive when an ON signal is output from one of the signal output circuit and the changeover switch to a connection portion between the signal output circuit and the valve drive circuit. A logic element for outputting an ON signal is provided in the circuit.

  The solenoid valve manifold control device of the present invention switches the main switch for switching between a state in which an on / off signal is transmitted to the valve drive circuit and a state in which the transmission of the on / off signal is stopped when each of the switch is operated. It is provided in the unit.

  According to the present invention, an electromagnetic valve control circuit that is provided between an input terminal and a connection terminal of an electromagnetic valve control unit and sends a valve drive signal to an electromagnetic valve based on a control signal from a main controller, a signal output circuit, It is formed by a two-stage circuit with a valve drive circuit, and the signal for switching the solenoid valve between the normal mode for auto operation and the manual mode for performing the solenoid valve operation check test Since the solenoid valve is supplied to the valve drive circuit, the solenoid valve is connected by the solenoid valve control circuit that is always connected, and the solenoid valve can always be held in the auto mode even if the changeover switch fails. This improves the durability and reliability of the control device.

  A signal from the main controller can be converted by a relay unit to send an on / off signal to the solenoid valve control unit.

  By mounting the switching unit detachably on the solenoid valve control unit, the switch unit is mounted on the solenoid valve control unit only when the control device is switched to the manual mode where the solenoid valve operation confirmation test is performed. Sometimes the switching unit can be removed from the solenoid valve control unit. Thereby, one switching unit can be shared for a plurality of solenoid valve manifolds, and the size of the solenoid valve manifold including the solenoid valve control unit can be reduced, and the manufacturing cost of the solenoid valve manifold can be reduced. Can be reduced.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an example of a solenoid valve manifold, and FIG. 2 is a block diagram showing a schematic structure of the control device shown in FIG.

  A solenoid valve manifold 10 shown in FIG. 1 has a manifold block 11 and a plurality of solenoid valves 12 attached to the manifold block 11, and an air supply passage 13 through which compressed air is supplied is formed in the manifold block 11. Two exhaust passages 14 and 15 are formed on both sides thereof. Each solenoid valve 12 has a valve body 16 provided with an air supply port communicating with the air supply passage 13, two exhaust ports communicating with the respective exhaust passages 14 and 15, and two output ports. The two output ports communicate with joints 17 and 18 attached to the manifold block 11. A valve member for switching the flow path is incorporated in the valve body 16, and the flow path is switched by the valve member when a drive signal is supplied to the coil incorporated in the solenoid unit 19. For example, when the supply / discharge flow path of the cylinder 20 as a fluid pressure operating device is connected to the joints 17 and 18, the compressed air from the supply air passage 13 is transferred to one pneumatic chamber of the cylinder 20 by switching the flow path. And the air in the other pneumatic chamber is discharged to the outside through one of the exhaust passages 14 and 15. Since the solenoid valve manifold 10 shown in FIG. 1 has eight solenoid valves 12, eight pneumatic actuators can be controlled.

  FIG. 2 is a block diagram showing a schematic structure of a control device for the solenoid valve manifold 10. When the solenoid valve manifold 10 shown in FIG. Each electromagnetic valve 12 is controlled by a control signal from a main controller (sequencer) 21 arranged at a distant position. The solenoid valve 12 shown in FIG. 1 is a single solenoid type in which one coil is incorporated, and the solenoid valve 12 is controlled by supplying a drive signal to the coil. However, two coils are incorporated in the solenoid valve. There is also a double solenoid type, in which case each solenoid valve is controlled by supplying drive signals to two coils.

  The control device has a solenoid valve control unit 22 and a relay unit 23 for sending a drive signal to each solenoid valve 12, and the solenoid valve control unit 22 is assembled to the solenoid valve manifold 10 or arranged separately. The relay unit 23 is assembled to the electromagnetic valve control unit 22 or is disposed separately. The relay unit 23 has a function as an S / P converter that converts a serial signal transmitted from the main controller 21 as a control signal to each solenoid valve 12 into a parallel signal. And the relay unit 23 and the solenoid valve control unit 22 are connected by a signal cable 26 having a number of signal lines corresponding to the number of coils of the solenoid valve. The solenoid valve control unit 22 is connected to each solenoid valve 12 by a signal cable 27 having a number of signal lines corresponding to the number of coils. When a parallel signal is output as a control signal from the main controller 21, a P / S converter is disposed adjacent to the main controller 21, and a serial control signal is sent to the relay unit 23 as a serial signal. become. However, when a parallel signal is output as a control signal from the main controller 21, the parallel signal of the main controller 21 may be directly sent to the solenoid valve control unit 22 without using the relay unit 23.

  The solenoid valve control unit 22 outputs an on / off signal as a drive signal to each solenoid valve 12 based on the control signal transmitted from the relay unit 23. An interrupt signal, that is, a manual signal for turning on / off each solenoid valve 12 from the switching unit 24 is input to the solenoid valve control unit 22 via the signal cable 28. Is input, the control device enters the manual operation mode. On the other hand, when the input of the on / off signal is stopped, the control device enters an auto mode in which the operation is controlled by a signal from the relay unit 23. Further, by adding an interrupt signal from the switching unit 24, an off / off signal is also sent to the solenoid valve 12 when a control signal for turning on / off the solenoid valve 12 is transmitted from the main controller 21 under the auto mode. Can be interrupted.

  3A to 3E are schematic perspective views showing arrangement patterns of the electromagnetic valve control unit 22 and the like in the electromagnetic valve manifold control device. In these drawings, members having a common function are denoted by the same reference numerals. In the control device shown in FIG. 3A, the solenoid valve control unit 22 is assembled and assembled in the solenoid valve manifold 10, and both are physically integrated. A switching unit 24 is connected to the electromagnetic valve control unit 22, and a signal cable 28 connected to the switching unit 24 is connected to a connector 29 a provided in the electromagnetic valve control unit 22 at the distal end. A connector 29b that is detachably mounted is provided. In contrast, in the control device shown in FIG. 3B, the solenoid valve control unit 22 is arranged separately from the solenoid valve manifold 10, and the solenoid valve control unit 22 and the solenoid valve manifold 10 are connected to the signal cable 27. Connected by.

  As shown in FIGS. 3A and 3B, the switching unit 24 is detachably connected to the solenoid valve control unit 22 so that the solenoid valve manifold 10 is installed on the production line or parts are replaced. Only when the switching unit 24 is connected to the solenoid valve control unit 22 can the electromagnetic valve operation confirmation test be performed, otherwise, the switching unit 24 is removed and the solenoid valve in the other solenoid valve manifold 10 is removed. An operation confirmation test can be performed. Therefore, when the solenoid valve manifold 10 is operating on the production line, a large space around the solenoid valve manifold 10 can be secured by removing the switching unit 24.

  On the other hand, in the control device shown in FIG. 3C, the electromagnetic valve control unit 22 is separated from the electromagnetic valve manifold 10 as in the case shown in FIG. And the switching unit 24 are physically integrated. Thus, if both units 22 and 23 are physically integrated, each circuit can be formed on a common printed circuit board disposed in a single unit case, and a signal cable 28 formed of a flat cable. Can be made unnecessary.

  In the control device shown in FIG. 3D, similarly to FIG. 3C, the solenoid valve control unit 22 and the switching unit 24 are physically integrated, and the relay unit 23 is further connected to the solenoid valve control unit 22. Are arranged close to each other and connected by a signal cable 26. 3A and 3B, the relay unit 23 is connected to the solenoid valve control unit 22 by the signal cable 26. 3A, 3 </ b> B, and 3 </ b> C, when a parallel signal is output from the sequencer, it may be input to the solenoid valve control unit 22 as it is.

  In the control device shown in FIG. 3 (E), the solenoid valve control unit 22, the switching unit 24, and the relay unit 23 are physically integrated and incorporated in a single unit case. Each circuit can be formed on a printed circuit board. Even in the case shown in FIGS. 3C to 3E, the solenoid valve control unit 22 may be directly assembled to the solenoid valve manifold 10 as in the case shown in FIG.

  FIG. 4 is a circuit diagram showing a control circuit provided in the solenoid valve control unit 22 and the switching unit 24 shown in FIG. 2. As shown in FIG. 1, eight solenoid valves 12 mounted on the manifold block 11 are arranged. When controlling by the solenoid valve control unit 22, since a drive signal is output with respect to the coils 12a-12h incorporated in the solenoid valve 12, respectively, each coil 12a-12h is supplied to the solenoid valve control unit 22. Are to be connected. Although eight solenoid valves 12 are mounted on the manifold block 11 shown in FIG. 1, any number of solenoid valves 12 can be mounted on the manifold block 11, and the solenoid valve control unit 22 can be A number of solenoid valves 12 can be controlled. Further, eight coils are connected to the electromagnetic valve control unit 22, but only three coils 12a, 12b, and 12h are shown in FIG. 4 and the other coils are omitted.

  Corresponding to the eight coils 12a to 12h, the solenoid valve control unit 22 is provided with input terminals 31a to 31h connected to the output terminal of the relay unit 23. From the relay unit 23, control from the main controller 21 is provided. On / off signals are output corresponding to the coils 12a to 12h of the electromagnetic valves 12 based on the signals. Connection terminals 32a to 32h and 33a to 33h are provided corresponding to the respective coils 12a to 12h, and both ends of the coil 12a are connected to the connection terminals 32a and 33a. Is the same. The solenoid valve control unit 22 incorporates a power supply circuit to which power is supplied from the external power supply circuit 34, and each connection terminal 32a to 32h is connected to a plus terminal of the power supply circuit. In addition, you may make it connect the positive side terminal of each coil 12a-12h with a common line.

  A solenoid valve control circuit 35 is provided between the input terminals 31a to 31h and one of the connection terminals 33a to 33h. Each solenoid valve control circuit 35 is turned on when an ON signal is output from the relay unit 23. And a signal output circuit 35a that outputs an OFF signal when an OFF signal is output, and a valve drive circuit 35b that outputs a drive signal to each electromagnetic valve 12 based on the signal from the signal output circuit 35a It has. The signal output circuit 35a includes a transistor 36 that is a switching element as a signal output element. This transistor 36 is a PNP type. When the LOW signal for turning on the solenoid valve is supplied to the base, the transistor 36 is turned on and outputs a current. When the HIGH signal is supplied, the transistor 36 is turned off and outputs a current. To do. The valve drive circuit 35b has a transistor 37 that is a switching element as a valve drive element that outputs a valve drive signal to the coils 12a to 12h based on a signal from the transistor 36. This transistor 37 is of the NPN type, and when a current is supplied to the base, the valve drive signal is turned on, and when not supplied, the valve drive signal is turned off.

  When the electromagnetic valve control unit 22 is assembled to the electromagnetic valve manifold 10 as shown in FIG. 3A, the coils 12a to 12h are connected to the connection terminals via the internal wiring as a signal cable. Thus, as shown in FIGS. 3B to 3E, the coils 12a to 12h are connected via the signal cable 27 when arranged separately from the solenoid valve manifold 10. .

  In the control device shown in FIGS. 3A and 3B, a switching unit 24 is connected to the electromagnetic valve control unit 22 via a signal cable 28. The number of change-over switches 38a to 38h corresponding to the number of As shown in FIG. 4, each changeover switch 38a to 38h includes an input contact 40 connected between two transistors 36 and 37 via a signal line 39, and a signal line 41 connected to a positive power supply terminal. And a ground contact 44 connected to a power supply terminal on the ground side via a signal line 43. In FIG. 3, three of the changeover switches 38a to 38h provided corresponding to the number of electromagnetic valves 12 are shown, and the other changeover switches are not shown.

  Each of the changeover switches 38a to 38h supplies a base current to the transistor 37 of the corresponding solenoid valve 12 when the input contact 40 and the plus contact 42 are switched to the conductive state, and sets the input contact 40 and the ground contact 44 to the conductive state. When switched, the base current is not supplied to the corresponding transistor 37. Thus, regardless of the on / off control signal output from the relay unit 23 corresponding to the electromagnetic valve 12, a manual signal can be supplied to the electromagnetic valve 12 as an interrupt signal to turn on and off the respective transistors 37. The device is in manual mode. If the input contact 40 of each changeover switch 38a-38h is set to the neutral position which does not conduct to both the contacts 42 and 44, the solenoid valve 12 will be in the state which act | operates based on the ON / OFF signal from the relay unit 23, and a control apparatus will be automatic. It becomes a mode.

  As described above, the input terminals 31a to 31h of the electromagnetic valve control unit 22 and the respective electromagnetic valves 12 are connected by the electromagnetic valve control circuit 35 having a two-stage configuration including the signal output circuit 35a and the valve drive circuit 35b. The control device can be switched from the auto mode to the manual mode by inputting an interrupt signal to the valve drive circuit 35b by manual operation of the changeover switches 38a to 38h.

  FIG. 5 is a circuit diagram showing a modification of the control circuit shown in FIG. 4. In the case shown in FIG. 5, the switching unit 24 is provided with a main switch 45, and the other configuration is shown in FIG. Same as the case. The main switch 45 is a switch for switching the signal lines 41 and 43 connecting the power supply circuit in the solenoid valve control unit 22 and the respective changeover switches between a conductive state and a cut-off state, and when operating the respective changeover switches. Holds the main switch 45 in the ON state. The signal line 41 is provided with a diode 46 that allows a current from each positive contact 42 to the input contact 40 and blocks a reverse current, and the signal line 43 has a current that flows from the input contact 40 to the ground contact 44. A diode 47 is provided to allow current in the reverse direction and prevent reverse current. In FIG. 3, the main switch 45 is not shown.

  4 and 5, the solenoid valve control unit 22 and the switching unit 24 are arranged separately as shown in FIGS. 3A and 3B and are electrically connected by a signal cable 28. However, when the solenoid valve control unit 22 and the switching unit 24 are combined as shown in FIGS. 3 (C) to 3 (E), the common printed circuit board is shown in FIGS. Therefore, the changeover switches 38a to 38h are provided in the common unit case.

  FIG. 6 is a circuit diagram showing another embodiment of the control circuit. In FIG. 6, members that are the same as those in the above-described embodiment are given the same reference numerals. In this case, the control circuit constituting the electromagnetic valve control unit 22 and the control circuit constituting the switching unit 24 are both provided on a common printed circuit board or the like, as shown in FIGS. 3 (C) to 3 (E). Corresponds to the type of controller shown.

  As shown in FIG. 6, the signal output circuit 35a includes an inverter (NOT element) 51 that inverts a LOW signal output as an ON signal from the relay unit 23, and an AND element 52 to which the output signal is input. The HIGH signal is input to the AND element 52 from the power supply unit. Therefore, when an ON signal for turning on the electromagnetic valve is output from the relay unit 23, the AND element 52 outputs an ON signal. An OR element 53 is provided in the interrupt section between the signal output circuit 35a and the valve drive circuit 35b, and the output terminal of the AND element 52 and the signal line 39 are connected to the OR element 53, so that relaying is performed. When an ON signal is output from the unit 23 or when a manual signal is output when the output contact and the positive contact are conducted by the changeover switches 38a to 38h, an ON signal is output to the valve drive circuit 35b. The valve drive circuit 35b has the same circuit configuration as that shown in FIGS.

  FIG. 7 is a circuit diagram showing a modification of the control circuit shown in FIG. 6. The main switch 45 shown in FIG. 5 is provided in the switching unit 24. In FIG. 7, the same members as those described above are used. Are denoted by the same reference numerals, and redundant description is omitted. 6 and 7, both the control circuit constituting the electromagnetic valve control unit 22 and the control circuit constituting the switching unit 24 are incorporated in a common unit case. A unit provided with a circuit corresponding to the electromagnetic valve control unit 22 shown in the figure and a unit provided with a circuit facing the switching unit 24 are provided separately as shown in FIGS. Also good.

  4 to 7, the signal for turning on the electromagnetic valve 12 is sent as a LOW signal. However, the present invention can also be applied to the case where the signal is sent as a HIGH signal. In this case, the characteristics of the transistors and logic elements are changed.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention. For example, the solenoid valve manifold 10 shown in FIG. 1 is a type in which a plurality of solenoid valves 12 are mounted on a manifold block 11, but various types of solenoid valves such as a split manifold type in which the manifold is divided corresponding to the solenoid valves. The control device of the present invention can also be applied to the manifold.

FIG. 1 is a perspective view showing an example of a solenoid valve manifold. It is a block diagram which shows schematic structure of the control apparatus shown by FIG. (A)-(E) is a schematic perspective view which shows arrangement | positioning patterns, such as a solenoid valve control unit in a control apparatus, respectively. It is a circuit diagram which shows the control circuit provided in the solenoid valve control unit and the switching unit. FIG. 5 is a circuit diagram showing a modification of the control circuit shown in FIG. 4. It is a circuit diagram which shows other embodiment of a control circuit. FIG. 7 is a circuit diagram showing a modification of the control circuit shown in FIG. 6.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Solenoid valve manifold 11 Manifold block 12 Solenoid valve 13 Supply passage 14,15 Exhaust passage 16 Valve main body 17,18 Joint 19 Solenoid part 20 Cylinder 21 Main controller 22 Solenoid valve control unit 23 Relay unit 24 Switching unit 25-28 Signal cable 29a, 29b Connector 31a-31h Input terminal 32a-32h Connection terminal 33a-33h Connection terminal 34 External power supply circuit 35 Electromagnetic valve control circuit 35a Signal output circuit 35b Valve drive circuit 36 Transistor 37 Transistor 38a-38h Changeover switch 39 Signal line 40 Input Contact 41 Signal line 42 Positive contact 43 Signal line 44 Ground contact 45 Main switch 46, 47 Diode 51 Inverter 52 AND element 53 OR element

Claims (10)

A solenoid valve manifold control device that performs on / off control of each solenoid valve in a solenoid valve manifold unit formed by collectively arranging a plurality of solenoid valves based on a control signal from a main controller,
A relay unit that outputs an on / off control signal to each of the solenoid valves based on a control signal from the main controller;
Solenoid valve control comprising: a signal output circuit that outputs an on / off signal based on an on / off signal from the relay unit; and a valve drive circuit that outputs a drive signal to the solenoid valve based on a signal from the signal output circuit A solenoid valve control unit provided with a circuit corresponding to each of the solenoid valves;
Regardless of the on / off control signal output from the relay unit, a changeover switch that outputs an on / off manual signal to the valve drive circuit has a changeover unit provided corresponding to each electromagnetic valve. Control device for solenoid valve manifold. A solenoid valve manifold control device that performs on / off control of each solenoid valve in a solenoid valve manifold unit formed by collectively arranging a plurality of solenoid valves based on a control signal from a main controller,
A relay unit that outputs an on / off control signal to each of the solenoid valves based on a control signal from the main controller;
Solenoid valve control comprising: a signal output circuit that outputs an on / off signal based on an on / off signal from the relay unit; and a valve drive circuit that outputs a drive signal to the solenoid valve based on a signal from the signal output circuit A circuit having a solenoid valve control unit provided corresponding to each of the solenoid valves,
Regardless of the on / off control signal output from the relay unit, a switch unit provided with a changeover switch corresponding to each solenoid valve is connected to output an on / off manual signal to the valve drive circuit. A control device for a solenoid valve manifold, wherein a connector is provided in the solenoid valve control unit. A solenoid valve manifold control device that performs on / off control of each solenoid valve in a solenoid valve manifold unit formed by collectively arranging a plurality of solenoid valves based on a control signal from a main controller,
A solenoid valve control comprising: a signal output circuit that outputs an on / off signal based on a control signal from the main controller; and a valve drive circuit that outputs a drive signal to the solenoid valve based on a signal from the signal output circuit A solenoid valve control unit provided with a circuit corresponding to each of the solenoid valves;
A changeover switch that outputs an on / off manual signal to the valve drive circuit irrespective of a control signal from the main controller has a changeover unit provided corresponding to each of the electromagnetic valves. Control device for solenoid valve manifold.   4. The electromagnetic valve manifold control device according to claim 1 or 3, wherein the electromagnetic valve control unit is assembled to the electromagnetic valve manifold unit or arranged separately.   5. The electromagnetic valve manifold control device according to claim 1, wherein the switching unit is detachably attached to the electromagnetic valve control unit.   6. The electromagnetic valve manifold control device according to claim 1, wherein the switching unit is assembled to the electromagnetic valve control unit.   7. The electromagnetic valve manifold control device according to claim 1, wherein the relay unit and the switching unit are assembled to the electromagnetic valve control unit.   The control apparatus for a solenoid valve manifold according to any one of claims 1 to 3, wherein the signal output circuit includes a transistor or a logic element that outputs a signal based on an ON signal from the relay unit, The said valve drive circuit has a transistor which outputs a valve drive signal to the said solenoid valve based on the ON signal from the said signal output circuit, The control apparatus of the solenoid valve manifold characterized by the above-mentioned.   9. The control device for a solenoid valve manifold according to claim 8, wherein when an ON signal is output from either one of the signal output circuit and the changeover switch to a connection portion between the signal output circuit and the valve drive circuit. A control device for a solenoid valve manifold, wherein a logic element for outputting an ON signal is provided in a valve drive circuit. The control apparatus for a solenoid valve manifold according to any one of claims 1 to 3, wherein a state in which an on / off signal is transmitted to the valve drive circuit when each of the changeover switches is operated, and transmission of an on / off signal A control device for a solenoid valve manifold, wherein the switching unit is provided with a main switch for switching to a state in which the valve is stopped.

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