JP2000014040A - Method and equipment for power supply control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power supply control method and equipment which are free from troubles that damage a power supply unit, without deteriorating the function of an uninterruptive power supply(UPS). SOLUTION: Power supply control equipment 1000 gives a primary power source 100 to an UPS 200 through a first switching part 101. In the normal time, the primary power source 100 is given to electrically driven equipment 500 through a second switching part 570. In the case of service interruption, a secondary power source 210 is given in the same manner. In the judgment (1) of a state, a second signal 586a showing operation of the electrically driven equipment is not present, a signal 583a judging a first signal 582a showing the shut of the switching part closes the switching part, and the electrically driven equipment is turned into an operating state. In the judgment (2) of a state, a signal 588a judges a third signal 587a intending operation end of the electrically driven equipment and the second signal 586a, and a signal 589a in which the signal 588a is delayed by a specified time opens the switching part. Thereby operation of the electrically driven equipment is stopped.

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 method and a power supply control device for an operation device that performs a predetermined operation via an uninterruptible power supply (hereinafter referred to as UPS).

[0002]

2. Description of the Related Art As a UPS used in this type of device,
As shown in FIG. 5, a configuration in which only a power failure alarm is provided in addition to power supply switching at the time of a power failure (hereinafter, referred to as a first related art),
As shown in FIG. 6, in addition to the power switching at the time of power failure, a power failure signal,
A configuration for outputting a charge amount signal or the like (hereinafter, referred to as a second related art) is well known. In the following drawings, portions denoted by the same reference numerals are portions having the same functions as the portions denoted by the same reference numerals described in any of the drawings.

In FIG. 5, a primary power supply 100 is an AC power supply having a possibility of power failure, for example, a commercial AC power supply, and is supplied to a UPS 200 via a switch 101. The switch 101 is a manual or electric switch. In the case of manual operation, for example, a manual changeover switch. In the case of electric operation, for example, a changeover with a breaker combining a manual changeover switch and an overload relay. Switch.

The self-switching device 201 is always in a state of opening a circuit (hereinafter, referred to as an “open” state), but only in a state of closing the circuit (hereinafter, referred to as “open” state) while the primary power supply 100 is supplied. , "Closed" state)
And a movable contact 201B that is normally in a “closed” state and is in an “open” state only while the primary power supply 100 is supplied. For example, the two movable contacts 201A and 20
The primary power supply 100 is supplied to the exciting coil of the relay having the relay 1B.

Therefore, when the primary power supply 100 is energized, the self-switching device 201 closes the movable contact 201A and outputs the primary power supply 100 as the power output 300. Rectifying / charging circuit 20
2 output to the DC / AC converter 203
The secondary power supply 210 is output as a power supply output.

Here, the same operation is performed when the switch 101 is set to the "open" state.
It is necessary to stop the operation of the load-side electric device (not shown) using the power supply output 300 within a predetermined time to cut off the load.

The rectifying / charging circuit 202 includes the primary power supply 100
Is a portion that rectifies and charges the secondary battery, for example, a combination of a rectifier and a storage battery, and a transformer is provided as necessary, and when the charged amount becomes a predetermined amount or more. An interruption circuit for stopping charging is provided.

The DC / AC converter 203 is a part for converting DC output from the rectification / charging circuit 202 into AC, and is, for example, an AC generator using a thyristor, and has an output voltage adjusting function as required. It is provided.

The switching detection circuit 205 includes a self-switching device 201.
Is output for a predetermined short period of time, for example, 5 seconds, when the movable contact 201B is in the “closed” state, that is, when the primary power supply 100 has stopped power. , A combination of a voltage divider circuit with a resistor and a timer, and a circuit that obtains a required voltage as a detection output and outputs the detection output for the time of the timer. Further, the output is given to the alarm terminal 207, so that an externally provided power failure alarm circuit can be operated as needed.

The power failure alarm circuit 206 is provided with the switching detection circuit 20
5 is a circuit for generating a predetermined alarm only while the detection output from 5 is given, for example, a circuit for operating a warning buzzer and an alarm lamp.

Further, the configuration of the second prior art shown in FIG.
The difference from the configuration of the first prior art is the following.
First, the power failure alarm circuit 206 is eliminated, the output of the switching detection circuit 205 is output as a power failure signal 240, and a charge detection circuit 204 is provided to provide a rectification / charge circuit 202.
The detection output obtained by detecting the charge amount of the
Is output as

Second, the charge amount detection circuit 204
For example, a switch circuit for connecting a required load resistor for a short time between output terminals of a secondary battery in a rectifier / charge circuit 202 and a voltage value during the connection are charged to a maximum value. A signal obtained by comparing with a voltage value, for example, 100
This is where a level signal or a digital signal expressed as a fraction (%) is output.

The UPS 2 according to the configuration of the first prior art described above.
As a configuration for performing power control of an electric device that operates a drive motor unit using 00, a configuration of a power control device 1000 in FIG. 7 (hereinafter, referred to as a third related art) is well known.
As a configuration for performing power control of an electric device for operating a drive motor using the UPS 200 according to the configuration of the second related art, a configuration of a power supply control device 1000 in FIG. 8 (hereinafter, referred to as a fourth related art) is well known. is there.

Here, in the present invention, the electric device is a portion driven by the power supply output 300 of the UPS 200, for example, a personal computer (hereinafter referred to as a personal computer), a mechanical device driven by an electric motor, a personal computer or a microcomputer. Control unit (hereinafter C
PU), a general term for a mechanical device driven by an electric motor or the like controlled by a CPU.

In FIG. 7, the power output 3 of the UPS 200
00 is given to the drive motor unit 520 and the display unit 521 via the switch 550, and the alarm signal 207A from the alarm terminal 207 is given to the display unit 521.

The electric drive unit 520 includes the electric device 5
00 is a part that performs the operation of the main operation part of the operation performed by the motor 00, for example, is a mechanical device part that operates with a motor, and the display unit 521 is an operation state of a predetermined part in the drive motor unit 520. This is a part for detecting and displaying, and by giving an alarm signal 207A to the display unit 521 to display an alarm, the operator of the apparatus knows that a power failure has occurred, and starts an operation to end the operation of the apparatus. As a result, while the charged amount of the UPS 200 is maintained, control is performed so that the apparatus is in a safe state even if a power failure occurs.

The configuration of the fourth prior art shown in FIG.
The difference from the configuration of the prior art is that, first, the display unit 52
1 is provided in the control unit 510 (not shown), and performs control to end the operation of the device based on the power failure signal 240 by giving the remaining amount signal 230 and the power failure signal 240 to the control unit 510. However, among the end controls in the control process of the drive motor 520, the control is performed so as to select and end the end control corresponding to the remaining amount value of the remaining amount signal 230. It should be noted that configurations in which the end operation portion in each configuration of the third prior art and the fourth prior art are variously modified are also well known.

[0018]

SUMMARY OF THE INVENTION
In the configuration of the electric device as in the fourth prior art, the UPS 20
Since the end operation at the time of a power failure can be safely performed by 0, the user becomes accustomed to it and inadvertently operates the switch 550 to “open” at a normal time other than the time of the power failure, so that the electric device 500 There is an inconvenience of causing failure, such as causing a failure or wasting important processing or data. For this reason, there is a problem that it is desired to provide a power supply control method for an electric device and the device without such a disadvantage without impairing the function of the UPS 200.

[0019]

According to the present invention, the primary power supply is always output as a power supply output as described above, and in the event of a power failure, the primary power supply is replaced based on the power supply charged by the primary power supply. In an uninterruptible power supply device that outputs a secondary power supply as the power supply output, that is, a power supply control method for an electric device that performs a predetermined operation based on a UPS,

The above-mentioned primary power supply is operated by the above-mentioned UPS and the above-mentioned primary power supply via the first power supply opening / closing portion, and the first signal is outputted when the above-mentioned primary power supply is given. A procedure for providing the output to the first detection section, and providing the power supply output to the electric device via the second opening / closing section so that the predetermined operation is performed.
Output the signal of

A procedure for starting the predetermined operation by closing the second power supply opening / closing portion based on the absence of the second signal and the presence of the first signal; Outputting a third signal indicating that the operation is terminated, outputting a fourth signal based on the presence of both the second signal and the third signal,

Based on the fourth signal, the fourth signal
Outputting a fifth signal at a point in time delayed by the predetermined time required for the termination from the point in time when the signal is output, and opening the second power supply opening / closing part based on the fifth signal. A first method comprising the steps of:

[0023] In addition to the first method, a second method including a procedure of selecting the predetermined time from a plurality of predetermined times,

In the power supply control device for an electric device similar to the electric device in the first method, the primary power supply is operated by the UPS and the primary power supply by a first power supply opening / closing portion. A first opening / closing means for providing a first detection portion for outputting a first signal when the primary power is supplied;

The above-mentioned predetermined operation is performed by applying the above-mentioned power supply output to the above-mentioned electric device via the second opening / closing portion, and the second opening / closing means for outputting a second signal; An operation start means for starting the predetermined operation by closing the second power supply opening / closing portion based on a logical product of the NOT signal of the second signal and the first signal;

A third signal indicating that the above-mentioned predetermined operation is completed.
Third signal means for outputting a fourth signal; fourth signal means for outputting a fourth signal based on a logical product of the second signal and the third signal; and the fourth signal Delay signal means for outputting a fifth signal at a time delayed by a predetermined time required for the end from the time when the fourth signal is output based on the fourth signal, based on the fifth signal; A first device provided with power cutoff means for opening a second power switching portion of the first device,

[0027] In addition to the first device, the above problem is solved by a second device provided with time selecting means for selecting the predetermined time from a plurality of predetermined times. is there.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to an example in which the present invention is applied to a configuration of a power supply control device similar to that of the third and fourth prior arts. In addition, UP
Alarm signal 207A and remaining amount signal 2 output from S200
30. Although the control part based on the power failure signal 240 is omitted, it can be provided as needed.

[0029]

An embodiment will be described below with reference to FIGS.
In FIGS. 1 to 4, portions denoted by the same reference numerals as those in FIGS. 5 to 8 are portions having the same functions as the portions denoted by the same reference numerals described in FIGS. 5 to 8. Also, in FIGS.
Portions denoted by the same reference numerals are portions having the same functions as the portions denoted by the same reference numerals described in any of FIGS. .

[First Embodiment] The first embodiment will be described below with reference to FIG. The configuration of FIG. 1 is a conceptual configuration,
The reference numerals in the figure indicate the correspondence with the configuration of the second embodiment described later. Also, in the figure, the portion indicated by the double line is
Mainly, it corresponds to the procedure of power supply control when the electric device 500 starts a predetermined operation, and the portion indicated by a single line mainly corresponds to the procedure when the operation of the electric device 500 ends.

The configuration of the first embodiment shown in FIG. 1 is different from the configuration of the third prior art and the fourth embodiment described above.
The power-on operation for starting the operation of the electric device 500 is performed by a second power supply opening / closing portion 570 provided in the power supply device 500.
This is a point that is performed by the first opening / closing portion 101 that supplies the primary power supply 100 to the UPS 200 without performing the above operation.

Second, the operation power supply for starting the operation of the electric device 500 is directly changed from the primary power supply 100 provided through the first opening / closing portion 101 without the intervention of the UPS 200. It is a place that is obtained based on the power supply that has been led.

Then, generally, the primary power supply 10
0 is output as the power supply output 300.
The secondary power supply 210 that replaces the primary power supply based on the power supply charged by the secondary power supply 100 is connected to the power supply output 30.
In the power supply control method for the electric device 500 that performs a predetermined operation based on the UPS 200 that outputs 0,

The above-mentioned primary power supply 100 is connected to the above-mentioned UPS 200 and the above-mentioned 1
A procedure which operates on the primary power supply 100 and supplies the primary signal to the first detection portion 582 which outputs the first signal 582a when the primary power supply 100 is supplied;

The power supply output 300 is applied to the electric device 500 through the second opening / closing portion 570 to perform the above-mentioned predetermined operation and output the second signal 586a.

As in [state determination (1)], based on the absence of the second signal 586a and the presence of the first signal 582a, the second power switch 57
0, that is, a procedure for starting the predetermined operation by the “close” operation 583a,

A third signal indicating that the above-described predetermined operation is completed.
And the fourth signal 587a based on the presence of both the second signal 586a and the third signal 587a, as in [state determination (2)].
Outputting a signal 588a of

From the time when the fourth signal 588a is output based on the fourth signal 588a, for a predetermined time required for the end, for example, the fourth signal 588
delaying a, and outputting a fifth signal, an "open" operation 589a, at a point in time delayed by 30 seconds;

The above-described first method is constituted by the procedure of opening the second power supply opening / closing portion 570 based on the fifth signal 589a.

In addition to the first method, the second method is provided with a procedure of selecting 589A the predetermined time, for example, the time for delaying the fourth signal 588a from a plurality of times. It is what constitutes.

Specifically, in FIG. 1, the power supply control at the start of the operation of the apparatus is performed by, for example, determining the operation power supply required for performing the first detection part and [state discrimination (1)], for example, 1
By using a DC power source converted from the AC of the secondary power source 100 to a required low-voltage DC, these detection and determination can be performed.

The power supply control at the end of the operation of the apparatus is performed by transmitting a signal indicating that the operator of the apparatus intends to end the operation without directly opening and closing the second opening / closing portion 570. For example, only a signal obtained by operating an operating device such as a key switch is output, and subsequent operations are given a delay time by [judgment of state (2)].
During this time, the end operation is completed.

Therefore, the inconvenience of causing the electric device 500 to fail or losing important processing and data even when the operator erroneously performs the end operation has been solved. Become. Also, UPS
The target operation can be performed irrespective of the operation of 200. In order to start the operation of the electric device 500 again, the operation can be started by manually opening the first opening / closing portion 101 once and closing it again.

Also, at the time of the end operation, the first opening / closing portion 1
01 is first set to the "open" state, a third signal 587a indicating that the predetermined operation is completed is output, and the subsequent operations are operated by the secondary power supply 210 of the UPS 200, and When the operation is started, the first opening / closing portion 101 may be simply closed.

In the case of the latter configuration for outputting the third signal 587a, as shown in FIGS. 5 and 7,
A configuration in which a UPS 200 having an alarm terminal 207 is provided, or a U which outputs a power failure signal 240 as shown in FIGS.
In the case where the PS 200 is provided, the first opening / closing portion 1
01 is first opened, an alarm signal 207A or a power failure signal 240 is output.
7A or the third signal 5
87a can be configured to be output, and the same operation can be performed.

The third signal 587a is immediately applied to a control portion of the electric device 500, for example, a portion (not shown) corresponding to the CPU similar to the CPU 510 in FIG. A state in which the control process in the operating control process is started to terminate the control process, data necessary for the subsequent control process is stored in a predetermined memory at the time of the termination operation, and the CPU can be turned off. End operation such as

Further, if the control target of the electric device 500 is stopped in the middle of the process as in the case of a mechanical process operation, for example, if the control target is such that the processing tool or the workpiece is damaged at the start of the next operation, , The control tool is operated to a control point where the processing tool or the workpiece is in a state where such damage does not occur, and then the control ending operation is performed.

[Second Embodiment] Hereinafter, FIGS.
A second embodiment will be described. This second embodiment corresponds to FIG.
This is a configuration in which the method according to the configuration of the first embodiment of the present invention is implemented as an apparatus, and portions different from the configuration of the above-mentioned fourth prior art are roughly represented by reference numerals. This is the same as the place described in.

In general, in the power supply control device 1000 of the electric device 500 similar to the electric device 500 in the first method described in the first embodiment, a first power supply opening / closing portion, for example, When the primary power supply 100 is operated by the UPS 200 and the primary power supply 100 and supplied with the primary power supply 100, the first signal 582a is supplied for a predetermined short period of time. T1, for example, a first detection unit that outputs for 10 seconds, for example, a first detection unit 582 that is operated by a circuit power supply 581, and a first opening / closing unit that supplies the first detection unit;

The power supply output 300 is applied to the electric motor 500 through a second opening / closing portion, for example, an opening / closing relay 570, to perform the above-described predetermined operation, and to perform the second signal 586a, For example, circuit power supply 5
A second opening / closing means for outputting a signal 586a obtained by detecting the output of the operation detection circuit 85 by the operation detection circuit 586;

Negation signal 58 of second signal 586a
4a, for example, the output signal 584a of the NOT circuit 584
Based on a logical product 583a of the first signal 582a and the output signal 583a of the AND circuit 583, the second power supply opening / closing portion 570 is set to, for example, the open / close switch 507A of the open / close relay 570 by “closed”. Operation start means for starting the predetermined operation by closing,

A third signal indicating that the above predetermined operation is completed
587a, for example, a third signal means for outputting a 587a signal obtained by operating the end operation circuit 587, and a logical product 588 of the second signal 586a and the third signal 587a. For example, an AND circuit 588
A fourth signal means for outputting a fourth signal 588a,

From the time when the fourth signal 588a is output based on the fourth signal 588a, the delay circuit 589 delays by a predetermined time T2 required for the end, for example, 30 seconds. Delay signal means for outputting a fifth signal 589a at the time of

On the basis of the fifth signal 589a, the second power supply switching section 570, for example, the switching relay 5
The open / close switching circuit 570A of FIG. 70 is set to the “open” state, and constitutes the above-described first device provided with a power cutoff unit that opens.

Further, in addition to the first device, the predetermined time T2 is set to a plurality of predetermined times, for example, as shown in FIG.
As shown in [Changeover detection partial block configuration], the time T2A
For example, the second device is provided with a selection / selection unit that selects a time T2B determined to be necessary for the end operation of the device from T2B and T2C.

More specifically, in FIG. 2, when the motor power supply 581 is not operating, that is, when the power supply output 300 is not supplied to the motor drive 500 as the operation power supply 300A in FIG. In addition, a part to be operated when [state determination (1)] in the first embodiment of FIG. 1 is performed, for example, a primary detection circuit 582.
AND circuit 583, NOT circuit 584, open / close switching circuit 5
A power supply circuit for supplying an operation power supply to 70A or the like.

Therefore, the circuit power supply 581 is the primary power supply 1
00 AC voltage, for example, by means of a resistor divider or transformer and a rectifier, the required low voltage DC voltage DC
1 (not shown), for example, a circuit for obtaining a DC voltage of 5 V.
Is used as a power supply for operation of a portion operated when performing the operation.

The primary detection circuit 582 detects whether the switch 101, that is, the first power switch 101, is in the "closed" state.
The first signal 582a is obtained by detecting the presence / absence of the voltage of the primary power supply 100A. The voltage of the primary power supply 100A is detected. In practice, however, the voltage of the circuit power supply 581 is detected. Can also serve the purpose, for example, a voltage of the circuit power supply 581 is buffered by a transistor and a counter circuit that counts clock pulses to obtain a time T1;
A rectangular wave signal obtained through the FF circuit, that is, the flip-flop circuit, is output as the primary detection signal 582a as the first signal 582a.

The AND circuit 583 has a primary detection signal 582
a, that is, the first signal 582a and the NOT circuit 58
4 negated signal 584a, ie, the second signal 586a
The above-mentioned operation of [state determination (1)] is performed by a logical product with a signal indicating that there is no
An AND signal 58 is provided by an AND circuit using transistors.
3a is output as the "close" operation signal 583a of the switching relay 570, that is, the switching circuit 570A of the second power switching section 570.

The NOT circuit 584 performs a logical AND operation in the AND circuit 583 to perform a logical AND operation in accordance with the purpose, that is, a negative operation for making the above-described [state determination (1)] operation. Specifically, as an operation detection signal 586a of the operation detection circuit 586, that is, a signal indicating that there is no second signal 586a,
The NOT signal 584a is provided to the AND circuit 583.

The open / close switching circuit 570A has a power output 300
For supplying electric power to the electric device 500 as an operating power supply, ie, the second power supply opening / closing portion 5 described above.
70 is a circuit for performing an operation of alternately switching between an "open" state and a "closed" state, like a toggle switch. It is a relay circuit with a circuit.

In [opening / closing switching part block configuration] of FIG.
ND signal 583a and DC power supply 5 of circuit power supply 585 described later
82A and the movable contact 570
a, 570b, and 570c are always in the "open" state and are in the "closed" state only while the exciting coil 570A1 is excited. The movable contact 570d is always in the "closed" state and the exciting coil 570A2 is excited. When it is done, it becomes "open" state.

When the AND signal 583a is applied to the exciting coil 570A1, the movable contacts 570a, 570b,
570c is in the “closed” state and the power output 300A is given to the electric device 500 and the electric device 500 starts a predetermined operation. Therefore, a DC power supply 582A of the power supply circuit 585 described later is output, and this DC A power source 582A is supplied to the exciting coil 570A1 through the movable contact 570c. Therefore, even after the AND signal 583a disappears, the exciting coil 570A1 is excited by the DC power supply 582A and is held by itself.

In this state, the delay signal 589 described later
a to the excitation coil 570A2, the movable contact 570
Since d is in the “open” state, the exciting circuit of the exciting coil 570A1 is cut off, and the movable contacts 570a, 570b, and 5
70c becomes an "open" state, the power supply output 300A applied to the electric device 500 is cut off, and the DC power supply 582A is lost, so that the delay signal 589a is also lost, the excitation of the excitation coil 570A2 is cut off, and the movable contact 570d is set to " The state returns to the “closed” state, and the control operation of the power supply control device 500 ends. Note that the diodes 583D and 582
D prevents mutual backflow between the AND signal 583a and the DC power supply 582A.

The circuit power supply 585 is a circuit for obtaining a power supply for obtaining a signal necessary for the above-mentioned [state determination (2)], and has the same configuration as the circuit power supply 581, for example, a DC voltage of 5V. Voltage DC2 (not shown),
A DC power supply 582A is obtained, and the DC power supply 582A is supplied to an operation detection circuit 586, an end operation circuit 587, an AND circuit 588, a delay circuit 589, an open / close switching circuit 570A, and the like. Note that, in the operation of the electric device 500, if there is a similar power supply, for example, a power supply for operating the CPU 510 in FIG. 8, the power supply can be used instead of the circuit power supply 581.

The operation detecting circuit 586 includes a switch relay 57.
0, that is, in order to detect that the second power supply opening / closing part 570 is in the “closed” state and the electric device 500 is in the operating state, for example, the circuit power supply 5
81 to detect the presence or absence of the voltage of the DC power supply 582A to obtain the second signal 586a.
A signal obtained by passing the voltage of 82A through a buffer circuit of transistors is used as the operation detection signal 586a.
Is output as the signal 586a.

The end operation circuit 587 is a circuit for outputting the third signal 587a representing the above-mentioned "to end the predetermined operation", that is, a signal intended to end the operation. This is a circuit for obtaining an output signal by a type of operation device, and when a key operation is performed, a DC power supply 58 is provided.
The signal of the voltage of 2A is changed to the end operation signal 587a,
It is output as a third signal 587a, and thereafter returns to the "open" state by a spring.

The AND circuit 588 outputs the operation detection signal 586
a, that is, the second signal 586a and the end operation signal 5
87a, that is, the operation of the above-mentioned [state discrimination (2)] is performed by the logical product with the third signal 587a. For example, the AND signal 588a is converted to the fourth signal by the AND circuit using a transistor. To the delay circuit 589.

The delay circuit 589 includes an AND signal 588a,
That is, the fourth signal 588a is converted to the fourth signal 588.
a circuit for obtaining a fifth signal 589a delayed by the above-mentioned predetermined time T2 from the time point when a is obtained, for example, a counter circuit which counts clock pulses and obtains a pulse signal about every 1 second And a counter circuit that counts the pulse signal of about 1 second and obtains a pulse signal every time T2, for example, about 30 seconds.

Then, the latter counter circuit is reset by the AND signal 588a, that is, the fourth signal 588a, and counting is performed, whereby the AND signal 588a, that is, the fourth signal 588a is delayed by the time T2. The pulse signal is a delay signal 589a, that is, a fifth signal 589a is provided to the open / close switching circuit 570A as a signal for performing an “open” operation.

The delay circuit 598 corresponds to the delay amount switching / selecting circuit 5 shown in FIG.
The time T2 is divided into a plurality of times T2A and T2B, such as 88A.
-To switch to select from T2C,
A switch for setting the maximum count value of the latter counter circuit is provided, and by switching this switch, for example, a delay corresponding to any one of a plurality of times T2A, T2B, and T2C is performed. Can be configured.

When the above operation is viewed in a time series, it operates as shown in FIG. 3, for example. The location at time T1 corresponds to the AND circuit 583, that is, the location where the above-mentioned [state discrimination (1)] operation is performed, and the pulse width of the small pulse at the start point of the delay time T2 is determined. The portion corresponds to the portion where the above-mentioned [state determination (2)] operation is performed, and the portion having the delay time T2 is the AND signal 588a, that is, the delay pulse obtained by delaying the fourth signal 588a by the time T2. Signal 58
9a, that is, a portion corresponding to the position where the fifth signal 589a is obtained.

The configuration of the part for performing the above-described [state determination (1)] and [state determination (2)] in the configuration of FIG. 2 is further concretely described in, for example, FIG. Switching Detection Partial Block Configuration].

In the [switch detection partial block configuration] of FIG. 4, the delay amount switching / selection circuit 588A outputs the AND signal 588a described in FIG. 1, that is, the fourth signal 588a.
The time T2 that delays the time T2A · T2
This is a changeover switch circuit for switching to select from B.T2C, for example, for determining the maximum count value of the above counter circuit.

Then, the time required for the ending operation of the electric device 500 is measured in advance, and the time is measured as the time T2A · T
By selecting from 2B and T2C, the ending operation of the electric device 500 can be performed safely and securely. In order to perform such an operation, a configuration in which a small circle is marked at an input / output portion of each circuit portion is set to an H level, that is, an output from which a predetermined voltage is obtained.

Therefore, as in the case of the first embodiment, even if the operator performs an ending operation by mistake, the electric device 500 is broken down or important processing and data are wasted. Thus, the inconvenience of causing a failure, such as the above, has been resolved, and the intended operation can be performed irrespective of the operation of the UPS 200.

In order to restart the operation of the electric device 500, the operation can be started by manually opening the first opening / closing portion 101 once and closing it again. Further, at the time of the end operation, after the opening / closing portion 101 of the first opening / closing portion 101 is first set to the “open” state, the end operation circuit 58
7 to operate the subsequent operations in the UPS 20.
When the operation is started by the secondary power supply 210 of 0 and the operation is started again, it is only necessary to close the first opening / closing portion 101 in the “closed” state.

Note that the control part of the apparatus, for example, C in FIG.
Part corresponding to CPU similar to PU 510 (not shown)
As in the case of the above-described first embodiment, the third signal 587a is immediately applied as it is, and a predetermined end operation is started.

[Modification] The present invention includes the following modifications. (1) Alarm signal 207A / remaining signal 230 / power failure signal 2
It is configured by applying to a configuration using the UPS 200 in which 40 cannot be obtained. (2) The present invention is applied to a configuration in which a control unit independent of the CPU is provided in the electric device 500.

(3) In the configuration of the above (2), in which the control unit performs the sequence control, the electric device 500 may be broken or a required part may be provided at each stage of the sequence control or at an appropriate place in the time series. The time required for the ending operation for ending at the operation stage where data is not lost is measured in advance.

Then, each time is set to a plurality of times in the time T2 of the delay amount switching / selecting circuit 588A, for example, T2
A, T2B, T2C, etc., that is, it is determined that they correspond to the delay amount, and a corresponding delay amount among the plurality of delay amounts is selected for each of the above-described appropriate stages or time-series locations. To be configured.

(4) In the configuration applied to the configuration in which the control by the CPU 510 is performed, instead of the delay circuit 589, C
A timer of a clock circuit used for the PU 510 or the like is used to measure time, and a plurality of times at the time T2, for example,
T2A, T2B, T2C, etc., that is, data corresponding to the amount of delay is stored in a RAM or ROM, and a delay configuration is provided for the stored data.

(5) In the configuration of the above (4), a termination operation for terminating the electric device 500 at an operation stage that does not cause a failure or lose required data is required for each appropriate step of the control processing flow. Data of a plurality of time values whose time is measured in advance is stored as data corresponding to the above-described delay amount, and for each of the above-described appropriate steps, a corresponding delay amount is selected from the plurality of delay amounts. To be configured.

(6) In the configuration of the above (5), in which the UPS 200 from which the remaining amount signal 230 is obtained is provided, considering the possibility of a power failure during the end operation, the remaining amount signal 230 Based on the above data, a delay corresponding to the remaining data is selected from the plurality of delay amounts and the end operation is performed.

(7) The switch 101 is replaced with a switch of the open / close type as shown in FIG. 2 and a spring return type switch similar to that of the end operation circuit 587 as shown in FIG. By simply operating the start operation device 101 having the contacts of FIG.
The switching relay 110 similar to the switching relay 570 of FIG. In the [primary opening / closing partial block configuration] of FIG. 4, the opening / closing switching circuit 110A of the switching relay 110 is in the "closed" state by the AND signal 583a just like the opening / closing switching circuit 570A of FIG. It operates to return to the "open" state.

Therefore, when the operation of the electric device 500 is started, it is only necessary to press the start operation device 101 for a short time until the switching relay 110 is brought into the “closed” state, and the start operation is performed again. When performing the operation, it is only necessary to operate the start operation device 101 in the same manner.
In the case of this configuration, in the configuration of the first embodiment, the portion of the start operation device 101 / start relay 110 corresponds to the first power supply opening / closing portion 101.

[0087]

As described above, according to the present invention, the operation of the electric device is started by the "opening" operation of the first opening / closing portion before the primary power is supplied to the UPS. It is determined that there is a signal indicating that the primary power is supplied and a signal indicating that the operating power is not supplied to the power supply device as in (1) of state determination).
Since the operating power is supplied to the electric device, the starting operation can be performed safely, and the operation can be performed by the UPS.
Can be performed independently of the operation of

Further, at the time of the ending operation of the electric device, the operator gives a signal to perform the ending operation without directly shutting off the operation power source, and the state determination (2) is performed. After a required time required for the ending operation has elapsed since it was determined that there is a signal indicating that operating power is supplied to the power supply device and the power supply device is operating and a signal indicating that the ending operation is to be performed. Since the operating power supplied to the electric device is cut off, even if the operator performs an ending operation by mistake, the electric device may be damaged or important processing and data may be wasted. It is possible to provide a power supply control device capable of preventing unsuccessful failures and performing the operation independently of the operation of the UPS.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to FIG. 4 show an embodiment of the present invention, and FIG.
FIG. 8 to FIG. 8 show the prior art, and the contents of each figure are as follows.

FIG. 1 is a conceptual diagram of the overall configuration.

FIG. 2 is an overall block diagram.

FIG. 3 is a diagram showing the configuration of signals and operations of each unit.

FIG. 4 is a block diagram of a main part.

FIG. 5 is a block diagram of a main part.

FIG. 6 is a block diagram of a main part.

FIG. 7 is an overall block diagram.

FIG. 8 is an overall block diagram.

[Explanation of symbols]

 Reference Signs List 100 primary power supply 101A primary power supply 101 switch (first switching part) 200 USP 201 self-switching device 201A movable contact 201B movable contact 202 rectifying / charging circuit 203 DC / AC converter 204 charge detection circuit 205 switching detection circuit 206 Power failure alarm circuit 207 Alarm terminal 207A Alarm signal 210 Secondary power supply 230 Remaining signal 240 Power failure signal 300 Power output 500 Electric motor 510 Control unit (CPU) 520 Driving electric unit 521 Display unit 550 Switch 570 Switching relay (second switch) Power supply open / close portion) 570A Open / close switching circuit 570A1 Exciting coil 570A2 Exciting coil 570a Movable contact 570b Movable contact 570c Movable contact 570d Movable contact 581 Circuit power supply 582 Primary detection circuit (first detection portion) 582A DC power supply 582D die Mode 582a Primary detection signal (first signal) 583 AND circuit 583D diode 583a AND signal ("close" operation) 584 NOT circuit 584a NOT signal (negative signal) 585 switching power supply 586 operation detection circuit 586a second signal 587 End operation key 587a Third signal 588 AND circuit 588a Fourth signal 589A Select 589 Delay circuit 589a Delay signal (fifth signal) 589 Delay circuit 1000 Power control device

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kazuhiro Saiki, Inventor, Printing and Printing Co., Ltd., 1-5-1, Taito, Taito-ku, Tokyo (72) Koji Kishi, Inventor 3-23-3 Edo, Kawaguchi-shi, Saitama Prepress Co., Ltd. F-term (reference) 5G015 FA13 GA06 HA13 JA32 JA55 KA06

Claims (4)

[Claims] 1. An uninterruptible power supply that always outputs a primary power supply as a power supply output, and outputs a secondary power supply instead of the primary power supply as the power supply output based on a power supply charged by the primary power supply during a power failure. Equipment (hereinafter referred to as UPS)
A power supply control method for an electric device that performs a predetermined operation based on the first power supply via a first power supply opening / closing part.
Providing a power supply output to a first detection unit for outputting a first signal when the first power supply is supplied by operating the first power supply; A procedure for outputting the second signal while giving the predetermined operation by giving the electric device via the electric device, and the second step based on the absence of the second signal and the presence of the first signal. A step of starting the predetermined operation by closing the power supply opening / closing part of Step 2, a step of outputting a third signal indicating that the predetermined operation is completed, a step of outputting the second signal, and a step of outputting the third signal. And outputting a fourth signal based on the fact that both are present; and at the time when the predetermined time required for the end is delayed from the time when the fourth signal is output based on the fourth signal. Outputting a fifth signal; Configured power control method based on the fifth signal by a procedure for opening the second power-off portion. 2. The power supply control method according to claim 1, further comprising a step of selecting the predetermined time from a plurality of predetermined times. 3. An uninterruptible power supply which always outputs a primary power supply as a power supply output and outputs a secondary power supply instead of the primary power supply as the power supply output based on a power supply charged by the primary power supply in the event of a power failure. Equipment (hereinafter referred to as UPS)
A power supply control device for an electric device that performs a predetermined operation based on the first power supply, wherein the first power supply is opened and closed by a first power supply opening / closing part.
S, a first opening / closing means for operating the first power supply and outputting a first signal when the primary power is supplied, and a first detection unit for outputting a first signal; A second opening / closing unit that outputs the second signal while applying the predetermined operation to the electric device via the opening / closing part; and a second signal that is a negative signal of the second signal and the first signal. Operation start means for starting the predetermined operation by closing the second power supply opening / closing part based on a logical product; and third signal means for outputting a third signal indicating that the predetermined operation is ended. Fourth signal means for outputting a fourth signal based on a logical product of the second signal and the third signal; and when the fourth signal is output based on the fourth signal At a time delayed by the predetermined time required for A delay signal means for outputting a fifth signal, the power control apparatus characterized by comprising a power supply cutoff means for opening the second power-off portion on the basis of said fifth signal. 4. The power supply control device according to claim 3, further comprising time selecting means for selecting the predetermined time from a plurality of predetermined times.