KR101662665B1

KR101662665B1 - Diagnostic system in stage machinery using power bus

Info

Publication number: KR101662665B1
Application number: KR1020160091285A
Authority: KR
Inventors: 곽철원; 최창환
Original assignee: 곽철원
Priority date: 2015-08-12
Filing date: 2016-07-19
Publication date: 2016-10-05

Abstract

The present invention relates to a self-diagnostic and urgent substitution driving system of a stage facility, using a power bus. The followings are specific explanation in reference to FIG.2. Firstly, when an actuator does not suddenly operate, a worker of the stage facility (device) changes a driving mode to a self-diagnostic mode. So, The driving mode is changed from a state, wherein an A drive drives an A motor and a B drive drives only a B motor, to the self-diagnostic mode, wherein the A drive drives the B motor and the B drive can drive the A motor. The most rapid method to find cause in a failure is a method of cross checking. To achieve the same, sharing the power bus is composed in advance, so the cross checking is performed by the diagnostic mode.

Description

[0001] The present invention relates to a self-diagnosis and emergency substitute operation system for a stage facility using a power bus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-diagnosis and emergency substitute operating system for a stage facility using a power bus, and more particularly, (Power bus) is used. When the inspector wants to do self-diagnosis operation at any time, it is possible to diagnose faults and abnormalities of the stage equipment. In case of failure, The present invention relates to a self-diagnosis and emergency substitute operating system of a stage facility using a power bus, which enables quick and accurate diagnosis and quick substitute operation and urgent alternative operation even in the absence of spare parts.

BACKGROUND ART Conventionally, a motor-driven stage apparatus is generally installed in a room and includes a driving unit for moving a batten, a ceiling pulley chamber for installing a pulley for guiding a wire rope, and a control room for storing a control panel for controlling the driving motor .

In such a conventional motor-driven stage device, when the batten is moved, the direction and distance of the batten are calculated through a movement command, and the battle is moved to a predetermined distance to determine whether it is a predetermined position and is stopped.

Also, in the case of returning, the direction and distance are calculated to make a movement command, and the batten is moved to a certain distance to judge whether the distance is the original distance and to stop.

1, the motor drive drive and the motor are constituted in a one-to-one relationship with the magnet contactor (Mg-ctt) interposed therebetween. In general, the A drive 1 is an A motor 3, and the B drive 2 is configured to drive the B motor 4.

However, in the conventional motor-driven stage apparatus, when the lifting or lowering operation of the batten is impossible, it can not be known at all without failing to put the workforce and check the driving motor or the control equipment.

In other words, you can see which part of the report is failing by replacing the drive, checking or replacing the motor, or replacing the control cable.

However, when analyzing the cause of the failure, it takes much more time than expected.

If the performance time is imminent or the situation is urgent, there is a problem that it is even worse.

Utility model registration No. 20-0396782

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a power-assisted power system in which a power output line between a drive and a motor is connected to a power bus bus). It is possible to use the self-diagnosis operation at any time when the inspector wishes to diagnose faults and abnormalities of the stage equipment. In case of failure, the self-diagnosis function can be used to quickly determine whether the drive or the motor is faulty. The present invention also provides a self-diagnosis and emergency substitute operation system for a stage facility using a power bus, which enables an urgent replacement operation even when there is no spare part.

In order to achieve the above object, a self-diagnosis and emergency substitute operating system of a stage facility using a power bus according to the present invention is installed in a room and includes a batten for carrying a stage set, a driving unit for driving the batten, And a power bus configured to share a power bus composed of a magnet contactor between the output terminals of the A and B drives of the respective lines and the input terminals of the A and B motors. In alternative operating systems

A cross check is performed to quickly find the cause of the line failure,

When the replacement of the drive is not prepared, the two alternate motors are alternately operated by a single drive to execute the emergency replacement operation.

According to the self-diagnosis and emergency substitute operation system of the stage facility using the power bus according to the present invention configured as described above, the power bus is shared so that the self diagnosis and the analysis of the cause of the failure can be more accurately judged, It is possible to prevent the failure of performances due to a sudden malfunction of a machine breakdown by detecting the cause of the failure precisely, and it is possible to drastically reduce wasted manpower and time.

Fig. 1 is a schematic diagram of a conventional motor drive drive and motor connection diagram
FIG. 2 is a connection diagram of a motor drive motor and a drive motor of a self-diagnosis and emergency substitute operation system of a stage facility using a power bus according to the present invention.
Figure 3 is a schematic diagram of an AC 380V circuit of the present invention
4 is a schematic diagram of an AC 220V circuit according to the present invention

The present invention will now be described in detail with reference to the drawings of the embodiments.

FIG. 2 is a connection diagram of a motor drive drive and a motor in a self-diagnosis and emergency substitute operation system of a stage facility using a power bus according to the present invention. As shown in FIG. 2, B drives 10 and 20 and the output terminals of the A and B motors 30 and 40 of the respective lines are connected to the output terminals of the A and B drives 10 and 20, And is configured to share a power bus 50 composed of magnet contactors C, D, and E between the input terminals.

In addition, the present invention is configured to be able to separate a normal operation mode and a self-diagnosis operation mode from each other, thereby enabling a failure detection and emergency operation.

Further, the present invention is configured to perform cross-checking to promptly find the cause of the line failure.

Further, in the present invention, when the replacement of the drive is not prepared, two A and B motors are alternately operated by a single drive so as to perform an emergency replacement operation.

The operation of the self-diagnosis and emergency substitute operation system of the stage equipment using the power bus according to the present invention will be described in detail with reference to FIG. 2

First, when the driver suddenly can not be driven, the operator of the stage equipment (apparatus) converts the operation mode into the self-diagnosis mode

In this way, the A drive drives the A motor and the B drive converts the B motor to the A drive and the self-diagnostic mode to drive the A motor to the B drive while driving only the B motor.

The fastest way to find the cause of a failure is to crosscheck.

To do this, configure the PowerBus share in advance so that you can cross-check through the diagnostic mode at any time.

For example, suppose A line is broken

1. Drive A motor to drive A (before running self-diagnosis) -----> fault

2. Drive B motor to drive A -----> fault

3. Drive B motor to drive B (execute operation before self-diagnosis) ---> Normal

4. Drive A motor to drive B ->> Normal

As described above, it is possible to quickly detect that the A drive has failed because the four operations are possible.

On the other hand, for example, even if the drive A is in a failed state and the replacement of the drive is not immediately prepared, it is possible to operate the A motor and the B motor alternately even though the A motor and the B motor can not be driven simultaneously. This is called emergency alternate operation.

Hereinafter, the operation of the present invention will be described in more detail.

2,

1. Daily driving

The magnet contactor E is in an OFF state and the other magnetic contactors A, B, C and D are in an ON state.

2. Self-diagnosis operation

1) With the magnet contactor (A-E-D) turned on and the rest turned off

Check for success / failure.

2) When the magnet contactor (B-E-C) is turned on and the other is turned off

Check for success / failure.

3. Emergency Alternative Driving

1) If the motor fails, the motor must be replaced or repaired promptly.

2) When A drive fails

The magnetic contactors B and D are turned on and the remaining magnet contactors are turned off so that the B drive 20 is driven by the B drive 20.

Next, the magnet contactors B, E, and C are turned on and the remaining magnet contactors are turned off to drive the A motor 30 to the B drive 20.

3 is a circuit diagram of a self-diagnosis and emergency substitute operating system of a stage facility using a power bus according to the present invention,

In a self-diagnosis and emergency substitute operation system of a stage facility,

Wherein the operating system includes: a power supply line including R-phase, S-phase, T-phase,

SA NFB and TA NFB having an overcurrent shut-off function installed in each of the R-phase, S-phase and T-phase of the power supply line, and R, S and T wiring lines connected to the RA NFB, SA NFB and TA NFB, A and B are connected to the A noise filter and control drive of the A motor is performed, and power is supplied from the R, S, and T wiring lines to control driving by U, V, and W drive lines An A-drive inverter for outputting an A-drive signal, an A-motor for generating rotation drive by the A-drive inverter, and an A-rotation detector for detecting a signal according to the rotation of the A-

SB NFB, TB NFB, SB NFB and TB NFB connected to the R, S, and T lines of the R, S, and T phases of the power supply line, A B noise filter for filtering the harmonics of the R, S, and T lines; and a B noise filter connected to the B noise filter for performing control driving of the B motor. And a B rotation part including a B drive inverter for outputting a B drive signal, a B motor for generating rotation drive by the B drive inverter, and a B rotation detection part for detecting a signal according to the rotation of the B motor,

The A drive inverter receives the drive signal of the B drive inverter and the detection signal of the B rotation detector, and the B drive inverter receives the drive signal of the A drive inverter and the detection signal of the A rotation detector.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention.

Therefore, the technical scope of the present invention should not be limited to the contents described in the embodiments but should be determined by the claims and equivalents thereof.

10: A drive 20: B drive 30: A motor 40: B motor 50: Power bus C, D, E: Magnet contactor

Claims

A self-diagnosis and emergency substitute operating system of a stage facility using a power bus, which is installed indoors and comprises a batten for carrying a stage set, a driving unit for driving the batten, a wire for guiding a wire connecting the batten and the driving unit,
Wherein the operating system includes: a power supply line including R-phase, S-phase, T-phase,
SA NFB and TA NFB having an overcurrent shut-off function installed in each of the R-phase, S-phase and T-phase of the power supply line, and R, S and T wiring lines connected to the RA NFB, SA NFB and TA NFB, A and B are connected to the A noise filter and control drive of the A motor is performed, and power is supplied from the R, S, and T wiring lines to control driving by U, V, and W drive lines An A-drive inverter for outputting an A-drive signal, an A-motor for generating rotation drive by the A-drive inverter, and an A-rotation detector for detecting a signal according to the rotation of the A-
SB NFB, TB NFB, SB NFB and TB NFB connected to the R, S, and T lines of the R, S, and T phases of the power supply line, A B noise filter for filtering the harmonics of the R, S, and T lines; and a B noise filter connected to the B noise filter for performing control driving of the B motor. And a B rotation part including a B drive inverter for outputting a B drive signal, a B motor for generating rotation drive by the B drive inverter, and a B rotation detection part for detecting a signal according to the rotation of the B motor,
Wherein the A drive inverter receives the drive signal of the B drive inverter and the detection signal of the B rotation detector and the B drive inverter receives the drive signal of the A drive inverter and the detection signal of the A rotation detector
Self - diagnosis and emergency substitute operation system of stage equipment using power bus.