JP3699268B2 - Elevator control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lifting device control device applied to a lighting device lifting device or the like.
[0002]
[Prior art]
The lifting / lowering of the object to be lifted, for example, the lighting fixture, is usually performed by a forward / reverse rotating motor, but there are a conventional manual type and an automatic type.
In the manual type, the luminaire is moved up and down using a raising operation means such as a switch or a lowering operation means, and stopped using a stop operation means.
[0003]
In the automatic type, the lighting fixture is moved up and down using the ascending operation means or the descending operation means, but the stop is stopped after a predetermined time by using a timer, or the rise is stopped by a limit switch mounted on the ceiling. It stops when the luminaire abuts.
The automatic type is superior to the manual type in that it automatically stops.
[0004]
[Problems to be solved by the invention]
However, an automatic lifting device controller that uses a timer to lower the body to be lifted does not move down unless a timer is set. Therefore, even when the lighting fixture is lowered for the first time after the lifting device is set, the timer is set. It had to be done and had the disadvantage of being unusable.
[0005]
Accordingly, an object of the present invention is to provide a control device for a lifting device that can perform a lowering operation without setting a timer when the lifting device is lowered for the first time after installation.
[0006]
[Means for Solving the Problems]
The control device for the lifting device according to claim 1 is a manual mode lifting means configured to manually operate each of the lowering, lifting and stopping operations of the lifting device, and a time value of a timer for the lowering stop position of the lifting device. Timer mode lifting and lowering means configured to have a timer set in advance and automatically stop when the time value elapses during the lowering operation of the lifting and lowering device, and when the timer time value is 0, the manual mode lifting and lowering means And a control means for enabling the operation.
[0007]
According to the control device for the lifting device according to claim 1, the manual motor lifting means can be operated by the control means when the timer time value of the timer mode lifting means is not set. Even if the descent time is not set, the descent operation can be performed in the shipping state, and the time for setting the time value of the timer can be saved and the usability can be improved.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. In other words, the lifting device control device includes manual mode lifting means, timer mode lifting means, and control means.
First, the lifting device will be described. FIG. 2A shows a state in which the fixed portion 2 is fixed to the ceiling 1 and the lowering portion 3 is suspended by a rope 4 such as a wire, for example, and a descent operation is started. is there. FIG. 2B shows a state in which the lifted body 3 is lowered and stopped. When the timer is automatically stopped, the descending distance, that is, the descending time corresponds to the set time of the timer. FIG.2 (c) is the state which the lighting fixture 3 raised and stopped.
[0009]
FIG. 3 shows a schematic configuration of the lifting device, 5 is a forward / reverse rotation motor, 6 is a drum connected to the forward / reverse rotation motor 5 and wound around the end of the rope 4, and 7 is a manual mode lift of the forward / reverse rotation motor 5 A control device including means, a timer mode raising / lowering means and a control means, 8 is an operating device. That is, the motor 5 is rotated forward or backward via the control device 7 by the raising operation and the lowering operation of the operation device 8.
[0010]
FIG. 4 is a motor control circuit outlining the manual mode lifting means. This manual mode lifting / lowering means is configured to manually operate the lowering / lifting / stopping operations of the lifting / lowering device, and FIG. 4 shows a specific circuit example thereof. AC indicates a power source, B indicates a breaker, WL indicates a power supply indicator lamp, M indicates a motor 5, and SW indicates an operating device 8. When the operating device SW to the contact S ₁ side, the motor M is rotated in one direction, the object to be vertically movable body 3, for example increases. Switching the operating device SW to the contact S ₂ motor M is rotated in the opposite direction, is the lifting body 3 descends. Also operating device SW cases stops the manually operated contact S _3.
[0011]
FIG. 5 is a motor control circuit outlining the timer mode raising / lowering means. This timer mode lifting / lowering means has a timer set in advance with the descent stop position of the lifting / lowering device 3 as a time value of the timer, and is configured to automatically stop when the lifting / lowering device descends when the time value elapses. FIG. 5 shows a specific circuit example thereof. T ₁ and T ₂ are timers, and t ₁ and t ₂ are set times when a voltage is applied to the timers T ₁ and T ₂ when the time values of the timers T ₁ and T ₂ are set to values other than 0. A timer contact that is turned on and does not turn on when the time value is 0 (not set). Others are the same as those in FIG. When the operating device SW to the contact S ₁ side, the voltage to the timer T ₁ is applied, only the time of the preset time value of the timer T ₁ contact t ₁ is turned on, the illumination and rotary motor M in one direction therebetween The appliance 3 rises, for example, and then the motor M stops. Also when the operating device SW to the contact S ₂ side, a voltage is applied to the timer T _2, only time contact t ₂ of the preset time value of the timer T ₂ is turned on, during which the motor M is rotated in the opposite direction The luminaire 3 is lowered, and then the motor M is stopped.
[0012]
The control means enables the manual mode raising / lowering means to operate when the time value of the timer is 0. For example, the control means switches between the manual mode raising / lowering means and the timer mode raising / lowering means. Specifically, this is achieved by connecting a circuit for short-circuiting the timer contacts t ₁ and t ₂ in parallel to the contacts t ₁ and t ₂ via switching means, and providing means for switching the switching means. 4 and 5 are for explaining the operation of manual mode lifting means or timer mode lifting means in principle. Specifically, the operation device SW, timers T ₁ , T _2, etc. are controlled by a computer. It can be configured by an electronic circuit so as to be possible.
[0013]
FIG. 1 is a control flow diagram of the control means. The control flow begins a start at 1sec period, it is determined whether the manual mode or in step ST _1, if YES becomes end, determines whether or not lowered at step ST ₂ If NO, YES timer set value determines whether zero or not in step ST _5, if YES is determined whether the timer mode in step ST ₄ if, and end without a counter process if YES. Performing counter processing in Step 6 If NO in the step ST _5. The counter process counts the set time of the timer, and when the count reaches the set value, the motor circuit is opened and the motor M is stopped assuming that the preset timer time has elapsed. If the timer set value determines whether zero or not in ST _7, performs a counter process in NO if step ST ₈ further YES is determined whether rising in step ST ₃ if NO at step ST ₂ If YES, no counter processing is performed. When the counter process is not performed in steps ST ₅ and ST ₇ , a manual operation is performed.
[0014]
In other words, when the timer set value is not set (timer set value = 0), it is determined whether or not the manual mode is in the 1 ms timer interrupt process. If the timer mode is descending and the timer set value is 0, the counter process is not performed. Further, if the timer set value is 0 during the increase, the counter process is not performed. Since no counter processing is performed, a manual operation is performed.
[0015]
As a result, when the timer setting is 0, the automatic operation is automatically performed, and the operation is stopped only by the stop operation without being automatically stopped. Therefore, even if the descent time is not set by the operation at the time of construction, the operation can be performed in the shipping state.
[0016]
【The invention's effect】
According to the control device for the lifting device according to claim 1, the manual motor lifting means can be operated by the control means when the timer time value of the timer mode lifting means is not set. Even if the descent time is not set, the descent operation can be performed in the shipping state, and the time for setting the time value of the timer can be saved and the usability can be improved.
[Brief description of the drawings]
FIG. 1 is a control flow diagram of an embodiment of the present invention.
FIG. 2 is an explanatory diagram of a lifting device.
FIG. 3 is a schematic configuration diagram of a lifting device.
FIG. 4 is a motor control circuit diagram in a manual mode.
FIG. 5 is a motor control circuit diagram in an automatic mode.
[Explanation of symbols]
3 Lifting object 4 Rope 5 Motor 6 Drum 7 Control device

Claims (1)

The lifting / lowering device has a manual mode lifting / lowering means configured to manually operate the lowering / lifting / stopping operations of the lifting / lowering device, and a timer preset as a time value of the timer. Elevating and lowering means comprising a timer mode elevating means configured to automatically stop when the time value elapses and a control means for operating the manual mode elevating means when the time value of the timer is 0 Control device for equipment.

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