JPH0752595A - Control device of electric power source for plotter - Google Patents

Abstract

PURPOSE:To contrive an improvement in operating properties, reduce consumption of electricity and simplify further operation, by a method wherein at the time of completion of operation at least an electric power source of a motor system is turned OFF automatically. CONSTITUTION:A motor system electric power source output terminal 20 joining a motor system electric power source and driver 18 to each other and a logic system electric power source output terminal 22 joining a logic system electric power source and CPU 24 to each other are arranged. Then a relay-switch 26 turning the motor system electric power source ON/OFF is arranged between the motor system electric power source output terminal 20 and driver 18, a power-relay 30 to be operated by a control signal to be output through the CPU 24 is arranged between the relay-switch 26 and CPU 24 and the power- relay 30 is operated by the control signal to be output through the CPU 24 so that the relay-switch 26 is turned ON/OFF.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply control device for a plotter, and more particularly to a power supply for a motor system and a control system of a pen plotter or a cutting plotter (hereinafter simply referred to as "plotter"). The present invention relates to a power supply control device for a plotter, which is controlled to save electricity and improve operability.

[0002]

2. Description of the Related Art Conventionally, a plotter (pen plotter) which is connected to a host computer and draws based on data output from the host computer, or a sheet based on data output from the host computer Plotters (cutting plotters) for cutting are known.

Such a plotter is a peripheral device of a host computer and is not operated by the plotter alone.

That is, when the power of the plotter is turned on, the current controlled to a predetermined voltage is supplied via the power supply unit to the motor system that drives the operating mechanism and the control system that controls the operation of the entire plotter. Although the plotter does not operate by itself, the power of the host computer connected to the plotter is turned on, a data signal is output from the host computer to the plotter, and the plotter receives the data signal. As a result, the actual operation control is started.

[0005]

The plotter, by the way,
As described above, the operation is controlled based on the data signal output from the host computer, and the drawing and cutting are automatically performed.However, if the drawing time or cutting time is long, the plotter's Since the power is turned off, the operator has to remain until drawing or cutting is completed, which causes a problem that the operability is not so good.

Further, as described above, when the drawing time or the cutting time is long, there is a possibility that the power is forgotten to be turned off, and the motor system power is turned on even after the drawing is completed.
However, there was also a problem that power consumption increased.

Further, at the time of starting the work of the plotter, it is necessary to turn on the power of the host computer and the power of the plotter, which causes a problem that the work becomes complicated.

The present invention has been made in view of the above-mentioned various problems of the prior art, and its object is to start drawing or cutting by a plotter by a signal from a host computer. Sometimes
At least the power of the motor system of the plotter is automatically turned on, and at the end of drawing or cutting by the plotter, at least the power of the motor system is automatically turned off.
It is an object of the present invention to provide a power supply control device for a plotter, which improves operability, reduces power consumption, and simplifies work.

[0009]

In order to achieve the above object, in a power supply control device for a plotter according to the first invention, a motor system power supply for operating a motor system of the plotter and a control system for the plotter are operated. In a power supply control device for a plotter including a power supply unit including a logic system power supply, a motor system power supply output terminal that connects the motor system power supply and the motor system to the power supply unit, the logic system power supply, and the A logic system power supply output terminal for connecting to a control system is provided, and the motor system power supply is turned on / off between the motor system power supply output terminal and the motor system.
A switch unit is provided, and the switch unit is operated by a predetermined control signal output from the control system to turn on / off the motor system power supply.

The plotter power supply control device according to the second aspect of the present invention includes a power supply unit including a motor power supply for operating the plotter motor system and a logic power supply for operating the plotter control system. In a power supply control device for a plotter, a motor system power supply output terminal for connecting the motor system power supply and the motor system to the power supply unit, and a logic system power supply output terminal for connecting the logic system power supply and the control system And a switch section for turning ON / OFF the motor system power supply and the logic system power supply of the power supply unit between the main power supply switch for turning ON / OFF the power supply unit and the external power supply. Between the power source and the switch unit, a switch unit control device for controlling the switch unit and a sub power source for the switch unit controller. A power source unit, and the switch unit control device switches the switch in synchronization with ON / OFF of the power of the host computer based on a control signal indicating ON / OFF of the power of the host computer of the plotter. The parts are turned on and off.

Further, in the power supply control device for the plotter according to the third aspect of the invention, there is provided a power supply unit including a motor power supply for operating the plotter motor system and a logic power supply for operating the plotter control system. In a power supply control device for a plotter, a motor system power supply output terminal that connects the motor system power supply and the motor system, and a logic system power supply output terminal that connects the logic system power supply and the control system to the power supply unit. And a switch section for turning ON / OFF the motor system power supply and the logic system power supply of the power supply unit between the main power supply switch for turning ON / OFF the power supply unit and the external power supply. A signal output from the host computer is received between the power source and the switch unit to turn on the switch unit.
And a sub-control unit that outputs a signal output from the host computer to the control system and receives a control signal for instructing the power-off from the control system, and a sub unit that is a power source of the sub-control unit. And a power supply unit, and the sub-control device controls the power supply O of the control system.
The switch section is turned off based on a control signal instructing the FF.

[0012]

According to the above-mentioned first invention, the plotter can be operated and controlled based on the data signal from the host computer, and the plotting process and the cutting process by the plotter can be performed based on the data signal from the host computer. Although automatically performed, the switch section is turned ON / O by a predetermined control signal output from the control system based on the reading of the data signal from the host computer.
FF.

Therefore, according to the first aspect of the present invention, it is possible to automatically turn on / off the motor system power supply based on the reading of the data signal from the host computer.

Further, according to the above-mentioned second invention, the plotter can be operated and controlled based on the data signal from the host computer, and the plotter performs drawing processing and cutting based on the data signal from the host computer. Processing will be done automatically,
When a control signal indicating ON / OFF of the power of the computer is input to the switch controller, the switch controller turns the switch ON / OFF in synchronization with the power ON / OFF of the host computer.

Therefore, according to the second aspect of the invention, the motor system power supply and the logic system power supply of the power supply unit are automatically turned on in synchronization with the ON / OFF of the power supply of the host computer.
It can be turned off / on.

Further, according to the above-mentioned third invention, the operation of the plotter can be controlled based on the data signal from the host computer, and the plotting process and cutting by the plotter based on the data signal from the host computer. Although the processing is automatically performed, the power is turned on.
When the control signal instructing the FF is input to the sub control device, the sub control device turns off the switch unit.

Therefore, according to the third invention, when the control system finishes processing the data signal from the host computer and outputs the control signal for instructing the power OFF, the plotting process and When the disconnection process is completed, the motor system power supply of the power supply unit is automatically turned on.
You can FF.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a power control device for a plotter according to the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing a first embodiment of a power supply control device for a plotter according to the present invention. The plotter 10 is provided with a power supply unit 12, and this power supply unit 12 is manually operated. The external power supply 16 is supplied through the main power supply switch 14 that is turned on / off by an operation.

The power supply unit 12 is, for example,
It has a motor system power supply of 24V to 40V and a logic system power supply of about 5V. And, in the power supply unit 12,
A motor system power supply output terminal 20 for supplying a motor system power supply to a driver 18 of a motor 17 for driving a plotter head (not shown) of the plotter 10 and a logic system power supply for controlling the entire operation of the plotter 10. A logic system power supply output terminal 22 for supplying to a control logic system of a CPU (Central Processing Unit) 24 is provided.

Further, between the motor system power source output terminal 20 and the driver 18, a relay switch 26, which is a switch section for turning on / off the motor system power source, is arranged. The relay switch 26 is a CPU 24. 28 actuated by a preset control signal from
ON / OFF via the power relay 30 and the power relay 30.

A host computer 32 is connected to the CPU 24, and a control signal for turning on the power relay 30 (hereinafter referred to as an ON control signal) and vector data such as characters and figures, that is, A data signal for drawing processing or cutting processing is input from the host computer 32.

Reference numeral 33 is an interface for connecting the host computer 32 and the CPU 24.

In the above configuration, when operating, the power of the host computer 32 is turned on and the main power switch 14 of the plotter 10 is turned on. As a result, the ON control signal of the host computer 32 is transmitted to the CPU 24.
The CPU 24 turns on the relay switch 26 for supplying electric power to the motor system via the transistor 28 and the power relay 30. When the relay switch 26 is turned on, the motor system power supply of the power supply unit 12 is turned on, and electric power is supplied to the motor 17 via the driver 18.

Further, in the CPU 24, vector data such as characters and figures provided from the host computer 32, that is, a data signal for drawing processing or cutting processing is sent to the plotter head by the CPU 24. The data is converted into data for driving, and the drive of the motor 17 is controlled based on this data.

On the other hand, after the reading of the data signal from the host computer 32 is completed, the CP
Since the output of the ON control signal from the U24 to the transistor 28 is stopped, the power relay 30 operates so as to turn off the relay switch 26, and the motor system power supply of the power supply unit 12 is turned off.

In this way, the plotter 10 is operation-controlled based on the ON control signal from the host computer 32, the plotter automatically performs drawing, and the reading of the data signal from the host computer 32 is completed. After drawing is completed, the motor system power supply is automatically turned off.

Therefore, when drawing or the like continues for a long time,
Even if there is no need to remain until the end time to turn off the power, or even if the power is forgotten to be turned off, the motor system power is turned off after the drawing is completed, so that the power consumption is reduced.

FIG. 2 is a schematic configuration diagram of a second embodiment of the power supply control device for the plotter according to the present invention. Regarding the configuration which is the same as or equivalent to the first embodiment shown in FIG.
By showing the same reference numerals as those in FIG. 1, the detailed description of the configuration and operation will be omitted.

In the second embodiment, the plotter 10 is a peripheral device of the host computer 32, and the plotter 1
Since 0 is not used alone, in synchronization with the power ON / OFF operation of the host computer 32,
The plotter 10 is also configured to be turned on / off.

A power supply unit 12 is provided in the plotter 10, and an external power supply 16 is supplied to the power supply unit 12 via a main power switch 14 which is turned on / off by a manual operation. .

The power supply unit 12 is, for example,
It has a motor system power supply of 24V to 40V and a logic system power supply of about 5V. And, in the power supply unit 12,
A motor system power source output terminal 20 for supplying a motor system power source to a driver 18 of a motor 17 for driving a plotter head of the plotter 10 and a control logic of a CPU 24 for controlling the entire operation of the plotter 10 with a logic system power source. A logic power supply output terminal 22 for supplying power to the system is provided.

Further, between the power supply unit 12 and the main power switch 14, the power supply of the power supply unit 12 is turned ON / O.
A relay switch 34, which is a switch unit for FF, is installed. The relay switch 34 is turned on so that it is turned on when the power source of the host computer 32 and the main power source switch 14 of the plotter 10 are turned on.
It is controlled by the / OFF circuit 36.

The power from the main power switch 14 is
When inputting to the sub power supply unit 38, the sub power supply unit 38 and the power ON / OFF circuit 36 are connected, and the main power switch 14 is turned on,
The power ON / OFF circuit 36 is always operable.

Then, for the CPU 24, the host
The computer 32 outputs vector data such as characters and graphics, that is, a data signal for drawing processing or cutting processing, and the power ON / OFF circuit 36 is ready to indicate that the power of the host computer 32 is ON. The (RDY) signal is output.

In the above structure, when operating, the power of the host computer 32 is turned on and the main power switch 14 of the plotter 10 is turned on. Then, the RDY signal from the host computer 32 becomes
It is input to the power ON / OFF circuit 36, and the relay switch 34 is turned off from the power ON / OFF circuit 36.
A control signal for changing to N is output, and the relay switch 34
Becomes an ON state, and the ON state is maintained.

In this way, when the relay switch 34 is turned on, the power supply unit 12 and the external power supply 16 are connected, and the motor system power supply and the logic system power supply become
The driver 18 and the CPU 2 are connected via the motor power supply output terminal 20 and the logic power supply output terminal 22, respectively.
4 is supplied.

When the power supply of the host computer 32 is turned off, the RDY signal from the host computer 32 is cut off even if the main power supply switch 14 of the plotter 10 is turned on. The control signal for turning on the relay switch 34 is not output from the OFF circuit 36, and the relay switch 34 is turned off.

In this way, the power supply unit 12 of the plotter 10 can be turned on / off in synchronization with the power on / off operation of the host computer 32.
The power supply unit 12 of the plotter 10 can also be turned ON / OFF simply by turning the power of the host computer 32 ON / OFF.
As a result, the complexity of the power ON / OFF operation can be eliminated.

FIG. 3 is a schematic configuration diagram of a third embodiment of the power supply control device for the plotter according to the present invention, which is the same as the first embodiment shown in FIG. 1 or the second embodiment shown in FIG. The same or corresponding configurations are denoted by the same reference numerals as those in FIG. 1 or FIG. 2, and the detailed description of the configurations and operations is omitted.

The third embodiment shows a configuration suitable for using the plotter 10 as an output device in a communication network. That is, when the plotter 10 is used as an output device in the communication network, the power of the host computer 32 is turned on / off.
Since it is necessary to control ON / OFF of the power source of the plotter 10 regardless of F, when the plotter 10 receives the data signal from the host computer 32, the power source of the plotter 10 is turned on and the data to be processed by the plotter 10 is It is configured such that the power of the plotter 10 is turned off when the power is lost.

A power supply unit 12 is provided in the plotter 10, and an external power supply 16 is supplied to the power supply unit 12 via a main power switch 14 which is turned on / off by a manual operation. .

The power supply unit 12 is, for example,
It has a motor system power supply of 24V to 40V and a logic system power supply of about 5V. And, in the power supply unit 12,
A motor system power source output terminal 20 for supplying a motor system power source to a driver 18 of a motor 17 for driving a plotter head of the plotter 10 and a control logic of a CPU 24 for controlling the entire operation of the plotter 10 with a logic system power source. A logic power supply output terminal 22 for supplying power to the system is provided.

Further, between the power supply unit 12 and the main power switch 14, the power supply of the power supply unit 12 is turned ON / O.
A relay switch 34, which is a switch unit for FF, is installed.

The relay switch 34 is I
The I / O block 40 is controlled by an I / O (input / output) block 40, and the I / O block 40 receives the power from the main power switch 14
8 and the main power switch 14 is turned on, the I / O block 40 is always operable.

FIG. 4 is a detailed block diagram of the I / O block 40, which includes an I / F logic 42 and
Sub CPU 44, data memory 46, buffer
And a memory 48.

Then, the vector data such as characters and figures given from the host computer 32, that is, the data signal for drawing processing or cutting processing is input to the I / O block 40 and processed, and thereafter, It will be output to the CPU 24.

In the above configuration, when operating, the power supply of the host computer 32 and the main power supply switch 14 of the plotter 10 are turned on. In this state, the data signal from the host computer 32 is I.
When input to the / O block 40, the sub CPU 44 stores the data signal in the data memory 46 and outputs the power ON signal to the relay switch 34 to
The switch 34 is held in the ON state. As a result, the motor system power supply and the logic system power supply from the power supply unit 12 pass through the motor system power supply output terminal 20 and the logic system power supply output terminal 22, respectively, and the driver 18 and the CP.
Supplied to U24.

When the CPU 24 becomes operable, the CPU 24 sends a ready (RD) signal to the sub CPU 44.
Y) signal is output. When the sub CPU 44 receives the RDY signal from the CPU 24, the data signal stored in the data memory 46 is transferred to the C memory via the buffer memory 48.
The data is output to the PU 24, and the CPU 24 performs the same processing as that of the above-described first embodiment or second embodiment based on the data signal.

As described above, since the data signal output from the host computer 32 before the CPU 24 becomes operable is stored in the data memory 46, it is possible to prevent the data from being lost. .

When the output of the data signal from the host computer 32 is stopped and there is no data signal to be read by the CPU 24, the CPU 24 turns off the power supply.
The Y signal is output to the sub CPU 44. And the sub-CP
Upon receiving the power OFF RDY signal from the CPU 24, the U 44 outputs a power OFF signal to the relay switch 34 to turn off the relay switch 34.

Thus, irrespective of the power ON / OFF operation of the host computer 32, the power supply unit 12 of the plotter 10 is turned ON only when there is a data signal to be read by the plotter 10, and the data signal to be read by the plotter 10 is set. If there is no power supply unit 12
Can be turned off, so power on / off
The complexity of the operation can be eliminated.

In each of the above embodiments, the relay switch 26 and the relay switch 34 are provided as the switch section, but the present invention is not limited to this.
Instead of the relay switch 26 and the relay switch 34, a semiconductor switch such as a transistor may be provided.

[0054]

Since the present invention is constructed as described above, it has the following effects.

In the plotter power supply control device according to the first aspect of the present invention, the plotter is provided with a power supply unit including a motor system power supply for operating the plotter motor system and a logic system power supply for operating the plotter control system. In the power supply control device, the power supply unit is provided with a motor system power supply output terminal for connecting the motor system power supply and the motor system and a logic system power supply output terminal for connecting the logic system power supply and the control system. Between the power output terminal and the motor system,
A switch part for turning on / off the motor system power supply is provided,
Since the switch unit is operated by a predetermined control signal output from the control system to turn on / off the motor system power, the plotter can be operated and controlled based on the data signal from the host computer.・ The plotter and cutting process can be automatically performed by the plotter based on the data signal from the computer, and by the predetermined control signal output from the control system based on the reading of the data signal from the host computer. The switch part can be turned ON / OFF.

Therefore, according to the first invention, it is possible to automatically turn on / off the motor system power supply based on the reading of the data signal from the host computer.

The plotter power supply control device according to the second aspect of the present invention includes a power supply unit including a motor power supply for operating the plotter motor system and a logic power supply for operating the plotter control system. In a power supply control device for a plotter, a power supply unit is provided with a motor power supply output terminal that connects a motor power supply and a motor system, and a logic power supply output terminal that connects a logic power supply and a control system, ON / O power supply unit and external power supply
A switch unit for turning on / off the motor system power supply and the logic system power supply of the power supply unit is provided between the main power supply switch for FF and the switch unit control for controlling the switch unit between the external power supply and the switch unit. A sub power supply unit serving as a power supply for the device and the switch unit control device is provided, and the switch unit control device controls the host computer based on a control signal indicating ON / OFF of the power source of the plotter host computer.
Since the switch section is turned on / off in synchronization with the power on / off of the computer, the plotter can be operated and controlled based on the data signal from the host computer, and based on the data signal from the host computer. The plotter can automatically perform drawing processing and disconnection processing, and when a control signal indicating ON / OFF of the power of the host computer is input to the switch control device, the power of the host computer is turned on / off. The switch unit is turned ON / OFF by the switch unit control device in synchronization with the OFF state.

Therefore, according to the second invention, the motor system power supply and the logic system power supply of the power supply unit are automatically turned on in synchronization with the ON / OFF of the power supply of the host computer.
It becomes possible to turn it off / on.

Further, the power supply control device for the plotter according to the third invention comprises a power supply unit comprising a motor power supply for operating the plotter motor system and a logic power supply for operating the plotter control system. In the power supply control device for the plotter, the motor system power supply output terminal for connecting the motor system power supply and the motor system to the power supply unit,
A logic system power supply output terminal for connecting the logic system power supply and the control system is provided to turn on / off the power supply unit and the external power supply.
A switch section for turning on / off the motor system power supply and the logic system power supply of the power supply unit is provided between the main power supply switch that is turned off and the signal output from the host computer between the external power supply and the switch section. Of the sub-control unit, which receives the control signal and turns on the switch unit, outputs a signal output from the host computer to the control system, and receives a control signal for instructing the power-off from the control system. A sub power supply unit serving as a power supply is provided, and the sub control unit turns off the switch section based on a control signal for instructing power OFF of the control system. Therefore, the plotter is based on the data signal from the host computer. The plotter can perform drawing and cutting operations based on the data signal from the host computer. It is possible to perform automatic, the control signal instructing the power OFF is input to the sub-control unit, the switch unit is turned OFF by the sub-control unit
To be done.

Therefore, according to the third aspect of the present invention, when the control system finishes processing the data signal from the host computer, it outputs the control signal instructing to turn off the power supply. When the disconnection process is completed, the motor system power supply of the power supply unit is automatically turned on.
You will be able to FF.

That is, according to the power supply control device of the plotter of the present invention, at least when the plotter starts drawing or cutting by the signal from the host computer, at least the power supply of the motor system of the plotter can be automatically turned on. At the end of plotting or cutting by the plotter, at least the motor system power is automatically turned off.
Therefore, the operability can be improved, the power consumption can be remarkably reduced, and the work can be greatly simplified.

[Brief description of drawings]

FIG. 1 is a block diagram showing a power supply control device for a plotter according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a power supply control device for a plotter according to a second embodiment of the present invention.

FIG. 3 is a block diagram showing a power control device for a plotter according to a third embodiment of the present invention.

FIG. 4 is a block configuration diagram showing an I / O block shown in FIG.

[Explanation of symbols]

 10 Plotter 12 Power Supply Unit 14 Main Power Switch 16 External Power Supply 17 Motor 18 Driver 20 Motor Power Supply Output Terminal 22 Locked Power Supply Output Terminal 24 CPU 26 Relay Switch 28 Transistor 30 Power Relay 32 Host Computer 33 Interface 34 Relay Switch 36 Power ON / OFF circuit 38 Sub power supply unit 40 I / O block

Claims (3)

[Claims] 1. A power supply control device for a plotter, comprising a power supply unit including a motor power supply for operating a plotter motor system and a logic power supply for operating a plotter control system, wherein the power supply unit includes: A motor system power supply output terminal that connects the motor system power supply and the motor system, and a logic system power supply output terminal that connects the logic system power supply and the control system are provided, and the motor system power supply output terminal and the A switch section for turning on / off the motor system power supply is provided between the motor system and the motor system, and the switch section is operated by a predetermined control signal output from the control system to turn on / off the motor system power supply. OFF
A power supply control device for a plotter, which is characterized in that 2. A power supply control device for a plotter, comprising a power supply unit comprising a motor power supply for operating a plotter motor system and a logic power supply for operating a plotter control system, wherein the power supply unit includes: A motor system power supply output terminal that connects the motor system power supply and the motor system, and a logic system power supply output terminal that connects the logic system power supply and the control system are provided, and the power supply unit and the external power supply are connected to each other. A switch unit for turning ON / OFF the motor system power supply and the logic system power supply of the power supply unit is provided between the ON / OFF main power supply switch and the switch unit between the external power supply and the switch unit. And a sub power supply unit that is a power source of the switch unit control device, and the switch unit control device, Based on the control signal indicating the power ON / OFF of the host computer Lotta, Power ON / OFF of the host computer
A power supply control device for a plotter, wherein the switch unit is turned on / off in synchronization with the above. 3. A power control device for a plotter comprising a power supply unit including a motor power supply for operating a plotter motor system and a logic power supply for operating a plotter control system, wherein the power supply unit includes: A motor system power supply output terminal that connects the motor system power supply and the motor system, and a logic system power supply output terminal that connects the logic system power supply and the control system are provided, and the power supply unit and the external power supply are connected to each other. A switch unit for turning ON / OFF the motor system power supply and the logic system power supply of the power supply unit is provided between the main power supply switch that is turned ON / OFF, and the host computer is provided between the external power supply and the switch unit. Receives a signal output from the host computer and turns on the switch unit, and outputs a signal output from the host computer to the control system. A sub-control device that outputs and receives a control signal for instructing power-off from the control system, and a sub-power supply unit that is a power source of the sub-control device are arranged, A power control device for a plotter, wherein the switch unit is turned off based on a control signal instructing to turn off the power.