CN223285755U - Intelligent remote on-site soft start control system - Google Patents
Intelligent remote on-site soft start control systemInfo
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- CN223285755U CN223285755U CN202421831756.6U CN202421831756U CN223285755U CN 223285755 U CN223285755 U CN 223285755U CN 202421831756 U CN202421831756 U CN 202421831756U CN 223285755 U CN223285755 U CN 223285755U
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Abstract
一种智能远程就地软启动控制系统，包括主回路和控制回路，主回路的供电端接三项电源，输出端接电机M，其技术要点是，控制回路包括手动启动回路和自动启动回路，手动启动回路中，启动按钮SBF1与中继器1KA的自锁触点1KA1并联后，一端经停止按钮SBS1串联转换开关SA的手动档位，另一端再串联中继器1KA的线圈；自动启动回路中，PLC信号开关的一端串联转换开关SA的自动档位，另一端串联中继器1KA的线圈，且所述PLC信号开关与启动按钮SBF1、中继器1KA的自锁触点1KA1相互并联。本实用新型通过软启动控制器来启动或停止电机，可以使电机平缓地启动或停止，使电机在启动时或停止时能够平稳运行，可避免电机忽起或忽停时运行状态急速发生转变而对电机造成过大的损耗。
An intelligent remote, on-site soft-start control system includes a main circuit and a control circuit. The main circuit's power supply terminal is connected to three power supplies, and its output terminal is connected to a motor M. The key technical features of the control circuit are that it includes a manual start circuit and an automatic start circuit. In the manual start circuit, a start button SBF1 is connected in parallel with the self-locking contact 1KA1 of a repeater 1KA. One end of the control circuit is connected in series with the manual gear of a switch SA via a stop button SBS1, and the other end is connected in series with the coil of the repeater 1KA. In the automatic start circuit, one end of a PLC signal switch is connected in series with the automatic gear of the switch SA, and the other end is connected in series with the coil of the repeater 1KA. The PLC signal switch is connected in parallel with the start button SBF1 and the self-locking contact 1KA1 of the repeater 1KA. This utility model uses a soft-start controller to start or stop a motor, allowing the motor to start or stop smoothly, ensuring stable operation during startup or shutdown. This prevents excessive motor damage caused by rapid changes in operating state when the motor starts or stops suddenly.
Description
Technical Field
The utility model relates to the field of industrial control, in particular to an intelligent remote on-site soft start control system.
Background
The industrial control system mainly controls a motor for driving equipment to operate, and controls the equipment to operate by controlling the starting operation state or the stopping mode of the motor, so that the automatic control of the equipment to operate is realized. In the current industrial control system, when the motor of the equipment is started and stopped, the problem that the equipment is stirred too much when the equipment is started and stopped due to overlarge inertia exists, and the power equipment is greatly damaged by the action similar to the action of starting and stopping by mistake.
In actual work, because the control equipment is often outdoors and even in open field, such as a pumping unit, the labor intensity of workers is greatly increased by the control equipment, if the workers are on site, the running state of the control equipment can be monitored at any time, the running of the equipment can be controlled at any time, if the workers are off site, the workers need to make a back and forth running when the equipment is started and stopped, namely, the labor intensity of the workers is increased, and the equipment cannot be started and stopped in time. Moreover, for the control equipment of the pumping unit in the open field, because of the limitation of manpower and material resources, the staff cannot monitor the equipment at any time at the side of the field, and the management staff also needs to know the operation condition of the control equipment at any time, when the on-site staff is not operated, the correct measures are needed to be taken in time to control the start and stop of the equipment, the on-site control system and the remote control system are needed to be arranged, and for some field control equipment with complex on-site conditions, a control duty room is needed to be arranged at a certain distance from the equipment for the staff to rest and monitor the equipment, and because the control room is also at a certain distance from the equipment, if the staff is at the side of the equipment and the equipment has unexpected condition at the moment, the staff returns to the field control room to have to delay the operation time to cause serious loss or accident, so that the reasonable control system is especially critical for the field control equipment with complex on-site work control.
Disclosure of Invention
The utility model aims to provide an intelligent remote on-site soft start control system, which aims to solve the problem that a motor suddenly starts or suddenly stops due to overlarge inertia when power equipment starts or stops running in the existing industrial control system so as to cause larger loss to the motor, and simultaneously designs a set of reasonable control system to adapt to field control equipment with complex field industrial control.
The intelligent remote on-site soft start control system of the utility model comprises a main loop and a control loop, adopts the technical proposal that the system also comprises a soft start controller,
The control loop comprises a manual starting loop and an automatic starting loop,
In the manual starting loop, after a starting button SBF1 is connected with a self-locking contact 1KA1 of a relay 1KA in parallel, one end of the starting button SBF1 is connected with a manual gear of a change-over switch SA in series through a stop button SBS1, and the other end of the starting button SBF is connected with a coil of the relay 1KA in series;
In the automatic starting loop, one end of the PLC signal switch is connected with the automatic gear of the change-over switch SA in series, the other end is connected with the coil of the relay 1KA in series,
The PLC signal switch is connected with the self-locking contact 1KA1 of the starting button SBF1 and the relay 1KA in parallel;
The other end of the transfer switch SA is connected with a live wire L2, the other end of the coil of the repeater 1KA is connected with a null wire N,
The starting contact 1KA2 of the relay 1KA is used for switching on or switching off a soft start controller.
In the preferred embodiment of the present utility model, in the manual start-up circuit, a start button SBF1 is connected in parallel with an in-situ control start button SBF2.
In another preferred embodiment of the present utility model, the manual starting circuit is provided with a local control stop button SBS2, the start button SBF1, the local control start button SBF2 and the self-locking contact 1KA1 of the repeater 1KA are connected in series, and the start button SBF1, the local control start button SBF2 and the self-locking contact 1KA1 of the repeater 1KA are connected in parallel.
In another preferred embodiment of the present utility model, the control circuit includes a soft start operation state display circuit, in which a coil of the relay 2KA is connected in series with the soft start operation state switch R1A, the other end of the soft start operation state switch R1A is connected to the live wire L2, and the other end of the coil of the relay 2KA is connected to the neutral wire N.
In another preferred embodiment of the present utility model, the control loop includes a soft-start fault display circuit, in which a coil of the repeater 3KA is connected in series with the soft-start fault state switch R2A, the other end of the soft-start fault state switch R2A is connected to the live wire L2, and the other end of the coil of the repeater 3KA is connected to the neutral wire N.
In another preferred embodiment of the present utility model, the control circuit includes a comprehensive fault circuit, in which one end of the low-level signal switch 22KA and one end of the start contact 3KA1 of the repeater 3KA are connected to the live wire L2, and are connected in parallel to each other and then connected in series with the coil of the repeater 4KA, and the other end of the coil of the repeater 4KA is connected to the neutral wire N.
In another preferred embodiment of the present utility model, the control loop further includes a motor protector power supply KQ, the coil of the motor protector power supply KQ is connected in parallel with the coil of the relay 4KA, and the protection switch KQ1, the low-level signal switch 22KA, and the start contact 3KA1 of the relay 3KA of the motor protector power supply KQ are connected in parallel with each other.
In another preferred embodiment of the present utility model, the manual starting circuit is provided with a normally closed contact 4KA1 of the repeater 4KA, a plc signal switch, a self-locking contact 1KA1 of the repeater 1KA are connected in parallel, a start button SBF1 and an on-site control start button SBF2 are connected in parallel, and then are connected in series with the normally closed contact 4KA1 of the repeater 4KA and a coil of the repeater 1KA in sequence.
In another preferred embodiment of the present utility model, the control loop includes an operation indicator lamp HR and a fault indicator lamp HY, the operation indicator lamp HR is connected in series with a normally open contact 2KA1 of the repeater 2KA, the fault indicator lamp HY is connected in series with a normally open contact 4KA2 of the repeater 4KA, one end of the normally open contact 2KA1 of the repeater 2KA and the other end of the normally open contact 4KA2 of the repeater 4KA terminate the live wire L2, and the operation indicator lamp HR and the other end of the fault indicator lamp HY terminate the neutral wire N.
In another preferred embodiment of the present utility model, the live line L2 input end of the control loop is provided with an emergency stop button SBE.
The intelligent remote on-site soft start control system has the following beneficial effects:
1) The soft start controller is used for starting or stopping the motor, so that the motor can be started or stopped gently, the motor can run stably when started or stopped, and the motor can be prevented from being damaged excessively due to rapid transition of the running state when the motor is started or stopped.
2) The utility model is provided with the automatic starting system and the manual starting system, when the operation equipment needs to be started manually, the change-over switch SA is turned to a manual gear, then the soft start controller can be connected by pressing the starting button, and then the motor is started by the soft start controller. Meanwhile, the relay 1KA can send a signal to the PLC remote control system to be used as an operation state signal for manual starting of equipment, so that the PLC can know the operation state of the starting of the field equipment, when the operation equipment needs to be started automatically, the change-over switch SA is turned to an automatic gear, the PLC remote control system controls the PLC signal switch to be closed automatically, and the soft start controller can be connected, so that the motor is started by the soft start controller. Different requirements of equipment starting can be met through on-site manual starting and remote automatic starting, on-site or remote equipment starting and stopping of workers are facilitated, the use flexibility is high, and the method is widely applicable.
3) The on-site control start button SBF2 is further connected in parallel with the start button SBF1, the on-site control start button SBF2 is arranged beside the running equipment, for some field operation equipment, the equipment has a certain distance from a field control room, and staff can often run back and forth between the equipment and the field control room, so that the start button is respectively arranged beside the field control room and the equipment, the equipment can be conveniently started no matter whether the field staff is in the control room or beside the equipment, and the on-site control start button SBF2 is arranged beside the equipment, and the start button SBF1 is arranged in the field control room. Correspondingly, the operation equipment is also provided with an on-site control stop button SBS2, so that the operation of stopping the operation of the operation equipment by workers is facilitated.
Drawings
FIG. 1 is a circuit diagram of a control system of the present utility model;
FIG. 2 is a circuit diagram of the main loop of the present utility model;
fig. 3 is a circuit diagram of a control loop in the present utility model.
Detailed Description
Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present utility model with reference to specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
The intelligent remote on-site soft start control system in the embodiment comprises a soft start controller, a main loop and a control loop, wherein the power supply of the main loop is connected with three power supplies, a breaker QF is arranged beside the three power supplies, an ammeter TA is arranged beside the breaker QF, the output end of the main loop is connected with a motor M, the control loop is used for controlling the start and stop of the motor M in the main loop, the control loop comprises a manual start loop and an automatic start loop,
In the manual starting loop, after a starting button SBF1 is connected with a self-locking contact 1KA1 of a relay 1KA in parallel, one end of the starting button SBF1 is connected with a manual gear of a change-over switch SA in series through a stop button SBS1, and the other end of the starting button SBF is connected with a coil of the relay 1KA in series;
In the automatic starting loop, one end of the PLC signal switch is connected with the automatic gear of the change-over switch SA in series, the other end is connected with the coil of the relay 1KA in series,
The PLC signal switch is connected with the self-locking contact 1KA1 of the starting button SBF1 and the relay 1KA in parallel;
The other end of the transfer switch SA is connected with a live wire L2, the other end of the coil of the repeater 1KA is connected with a null wire N,
The starting contact 1KA2 of the relay 1KA is used for switching on or switching off a soft start controller.
When the operation equipment needs to be started manually, as shown in fig. 3, the ① point and the ② point in the change-over switch SA are switched on, so that the change-over switch SA is turned to a manual starting gear, then a start button SBF1 is pressed, at the moment, a coil of the relay 1KA is electrified, a self-locking contact 1KA1 of the relay 1KA is automatically and instantaneously attracted to form a self-locking loop so as to enable the coil of the relay 1KA to be electrified continuously, and by combining with fig. 1 and fig. 2, the start contact 1KA2 of the relay 1KA is continuously closed, thus a soft start controller is switched on, and then a motor M in a main loop is started by the soft start controller;
When the running equipment needs to be started automatically, referring to fig. 3, the ③ point and the ④ point in the change-over switch SA are connected, so that the change-over switch SA is turned to an automatic gear, the PLC remote control system controls the PLC signal switch to be closed automatically, the coil of the relay 1KA is powered on, referring to fig. 1 and 2, the starting contact 1KA2 of the PLC remote control system is closed to be connected with the soft start controller, so that the motor M is started by the soft start controller to enable the running equipment to run, when the automatic running state of the equipment needs to be cut off, referring to fig. 3, the PLC remote control system cuts off the PLC signal switch, the coil of the relay 1KA is powered off, and referring to fig. 1 and 2, the starting contact 1KA2 of the PLC remote control system is disconnected, the soft start controller is powered off, and the motor M stops running.
Different requirements of equipment starting can be met through on-site manual starting and remote automatic starting, on-site or remote equipment starting and stopping of workers are facilitated, the use flexibility is high, and the method is widely applicable.
The motor M is started or stopped by the soft start controller, so that the motor can be started or stopped gently, the motor can run stably when started or stopped, and the excessive loss of the motor caused by rapid transition of the running state when the motor M is stopped or stopped can be avoided. The soft start controller may be a Studies ABB soft start controller or a Schneider soft start controller.
In some preferred embodiments, in the manual starting loop, the on-site control starting button SBF2 is connected in parallel with the starting button SBF1, the on-site control starting button SBF2 is arranged beside the running equipment, for some field operation equipment, the equipment has a certain distance from a field control room, a worker will often run back and forth between the equipment and the field control room, so that the starting button is respectively arranged beside the field control room and the equipment, the on-site worker can conveniently start the equipment no matter in the control room or beside the equipment, and the on-site control starting button SBF2 is arranged beside the equipment and the starting button SBF1 is arranged in the field control room. Correspondingly, the operation equipment is also provided with an on-site control stop button SBS2, so that the operation of stopping the operation of the operation equipment by workers is facilitated.
The stop button SBS1, the on-site control stop button SBS2, the start button SBF1, the on-site control start button SBF2 and the self-locking contact 1KA1 of the repeater 1KA are mutually connected in series, and the start button SBF1, the on-site control start button SBF2 and the self-locking contact 1KA1 of the repeater 1KA are mutually connected in parallel.
In another preferred embodiment, the control loop includes a soft start operation state display circuit, in which a coil of the relay 2KA is connected in series with the soft start operation state switch R1A, another end of the soft start operation state switch R1A is connected to the live wire L2, and another end of the coil of the relay 2KA is connected to the neutral wire N. When the soft start controller is connected, the soft start running state contact R1A of the soft start controller is automatically closed, the coil of the relay 2KA is electrified, and a device start state signal is automatically sent to the PLC in the remote control system.
On the basis, the embodiment is further provided with an operation state indicator lamp HR in the control loop, the operation state indicator lamp HR is connected with a normally open contact 2KA1 of the relay 2KA in series, after a coil of the relay 2KA is electrified, the normally open contact 2KA1 is closed, the operation indicator lamp HR is connected, a worker can know that the equipment is in an operation state by watching the operation state indicator lamp HR, when the equipment stops operating, a soft start controller is disconnected, a soft start operation state contact R1A of the soft start controller is also automatically disconnected, a coil of the relay 2KA1 is powered off, the normally open contact 2KA1 of the soft start controller is disconnected, and the operation state indicator lamp HR is turned off to indicate that the equipment is in a stop state. Further, in order to facilitate the staff to see the running state indicator lamp HR at different positions, in this embodiment, running state indicator lamps are both disposed in and outside the control cabinet of the apparatus, namely, the running indicator lamp 1HR in the cabinet and the external running indicator lamp 2HR.
The control loop comprises a soft start fault display circuit, wherein in the soft start fault display circuit, a coil of the relay 3KA is connected with a soft start fault state switch R2A in series, the other end of the soft start fault state switch R2A is connected with a live wire L2, and the other end of the coil of the relay 3KA is connected with a neutral wire N. When the soft start controller fails, the soft start failure state switch R2A is automatically closed, the coil of the repeater 3KA is connected, and a soft start failure signal is transmitted to a PLC in the remote control system to perform remote automatic monitoring and early warning.
The control loop comprises a comprehensive fault circuit, wherein in the comprehensive fault circuit, one ends of a low liquid level signal switch 22KA and a starting contact 3KA1 of a repeater 3KA are connected with a live wire L2, and are connected in parallel with each other and then connected with a coil of the repeater 4KA in series, and the other end of the coil of the repeater 4KA is connected with a zero line N. The starting contact 3KA1 of the relay 3KA is closed, the coil of the relay 4KA is powered on, and the relay 4KA sends a signal to the PLC in the remote monitoring system, so that the PLC knows that the on-site operation equipment breaks down, soft start faults are also collected in the comprehensive fault circuit, and the PLC knows the soft start fault conditions from different channels so as to avoid misjudgment or missed judgment conditions.
In some preferred embodiments, in the operation equipment using the liquid in place, a low-liquid-level signal switch 22KA may be further arranged in the comprehensive fault circuit to ensure safe operation of power equipment such as a water pump, an oil pump and the like. When the liquid level is too low, in order to prevent power equipment such as a water pump, an oil pump and the like from idling, when the liquid level is too low, the liquid level control box can send a low liquid level signal, which is equivalent to forming a low liquid level signal switch 22KA, the low liquid level signal switch 22KA is closed, a coil of the relay 4KA is powered, the relay 4KA works, and fault information is sent to the PLC.
In some preferred embodiments, the control loop further comprises a motor protection circuit, which mainly comprises a motor protector power supply KQ, wherein the coil of the motor protector power supply KQ is connected in parallel with the coil of the relay 4KA, a protection switch KQ of the motor protector power supply KQ is connected in series with the coil of the relay 4KA, and the protection switch KQ of the motor protector power supply KQ, the low-level signal switch 22KA and a starting contact 3KA1 of the relay 3KA are connected in parallel with each other. When the motor M needs to be protected, the coil of the motor protector power supply KQ is electrically turned on, the protection switch KQ thereof is closed, the coil of the relay 4KA is electrically turned on, the comprehensive fault circuit is turned on, and the relay 4KA transmits a fault signal to the PLC.
In some preferred embodiments, a normally closed contact 4KA1 of the repeater 4KA is provided in the manual starting circuit, the plc signal switch, the self-locking contact 1KA1 of the repeater 1KA are connected in parallel, the start button SBF1 and the in-situ control start button SBF2 are connected in parallel, and then connected in series with the normally closed contact 4KA1 of the repeater 4KA and the coil of the repeater 1KA in sequence. Thus, when the motor protection circuit is started, the motor start-stop circuit is ensured to be cut off, so that the motor M is prevented from being started by mistake.
In some preferred embodiments, the control loop includes an operation indicator lamp HR and a fault indicator lamp HY, where the operation indicator lamp HR is connected in series with the normally open contact 2KA1 of the repeater 2KA, the fault indicator lamp HY is connected in series with the normally open contact 4KA2 of the repeater 4KA, one end of the normally open contact 2KA1 of the repeater 2KA and the other end of the normally open contact 4KA2 of the repeater 4KA are connected to the live wire L2, and the operation indicator lamp HR and the other end of the fault indicator lamp HY are connected to the neutral wire N. The operation state and the failure state of the motor are displayed by the operation indicator lamp HR and the failure indicator lamp HY.
In some preferred embodiments, the fire wire L2 input end of the control loop is provided with an emergency stop button SBE. When the device fails and needs to stop running immediately, the scram button SB2 can be pressed, thereby shutting off the running of the whole device.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421831756.6U CN223285755U (en) | 2024-07-31 | 2024-07-31 | Intelligent remote on-site soft start control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421831756.6U CN223285755U (en) | 2024-07-31 | 2024-07-31 | Intelligent remote on-site soft start control system |
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| Publication Number | Publication Date |
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| CN223285755U true CN223285755U (en) | 2025-08-29 |
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| CN202421831756.6U Active CN223285755U (en) | 2024-07-31 | 2024-07-31 | Intelligent remote on-site soft start control system |
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| CN (1) | CN223285755U (en) |
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2024
- 2024-07-31 CN CN202421831756.6U patent/CN223285755U/en active Active
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