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Programmable slide rheostat based on stepping motor PLC intelligent control and application method thereof

A technology of sliding rheostats and stepping motors, which is applied in the direction of sliding contact resistors, resistors, adjustable resistors, etc., can solve the problems of unstable adjustment, influence of adjustment accuracy, and single adjustment method, so as to avoid manual adjustment, High-precision automatic control, the effect of automatic resistance value

Pending Publication Date: 2019-09-03
上海文顺电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the embodiment of the present invention provides a programmable sliding rheostat based on the PLC intelligent control of the stepping motor and its use method to solve the manual adjustment of the sliding rheostat in the prior art, the adjustment method is single, and the adjustment accuracy is affected by manual adjustment. Stable and inaccurate, unable to realize the problem of automatic control

Method used

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  • Programmable slide rheostat based on stepping motor PLC intelligent control and application method thereof
  • Programmable slide rheostat based on stepping motor PLC intelligent control and application method thereof
  • Programmable slide rheostat based on stepping motor PLC intelligent control and application method thereof

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Embodiment 1

[0038] A programmable sliding rheostat based on stepping motor PLC intelligent control, such as Figure 1 to Figure 7 As shown, the varistor module 1 and the PLC control module 2 are included; in use, the PLC control module 2 controls the varistor module 1 to exhibit different resistance values.

[0039] The varistor module 1 includes a varistor 11, a driving component 12, and a resistance value sampling module 13. The driving component 12 is used to automatically drive the varistor 11, so that the varistor 11 exhibits different resistance values. The resistor sampling module is used to measure the resistance of the varistor 11.

[0040] The varistor 11 includes a supporting plate 111 at both ends, a supporting shaft 1121 arranged between the two supporting plates 111, a resistance wire 1122 wound on the supporting shaft 1121, a sliding rod 1123 arranged between the two supporting plates 111, and a A freely slidable sliding contact block 1124 on the sliding rod 1123, one end of th...

Embodiment 2

[0050] A method for using a programmable sliding rheostat based on the PLC intelligent control of a stepping motor, including the following steps:

[0051] S1. Set the resistance value on the touch screen 33, and the PLC control module 2 controls the ohmmeter to measure the actual resistance value;

[0052] S2, PLC control module 2 compares the set resistance with the measured actual resistance;

[0053] S3. The PLC control module 2 controls the forward and reverse controller 122 to make the stepping motor 121 forward or reverse;

[0054] S4. The ohmmeter measures the actual resistance value, and the PLC control module 2 performs a second comparison between the set resistance value and the measured actual resistance value;

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Abstract

The embodiment of the invention discloses a programmable slide rheostat based on stepping motor PLC intelligent control and an application method thereof. The programmable slide rheostat comprises a variable resistance module and a PLC control module; the variable resistance module comprises a variable resistor, a driving component and a resistance value sampling module; the variable resistor comprises a supporting plate, a supporting shaft, a resistance wire, a sliding rod and a sliding contact block; and the driving component drives the sliding contact block to slide. The application methodcomprises the following steps of: S1, setting a resistance value, and measuring an actual resistance value; S2, comparing the set resistance value with the measured actual resistance value; S3, controlling the stepping motor to rotate positively or negatively; S4, measuring the actual resistance value, and performing secondary comparison of the set resistance value and the measured actual resistance value; and S5, repeating the step S3 and the step S4 until the set resistance value and the measured actual resistance value are in an error range. The problems are solved that a slide rheostat ismanually regulated and is single in regulation mode, the regulation precision is influenced by manual regulation, the regulation is not stable and is not accurate, and the automatic control cannot beachieved in the prior art.

Description

Technical field [0001] The embodiment of the present invention relates to the technical field of resistance elements, in particular to a programmable sliding rheostat based on stepping motor PLC intelligent control and a method of use. Background technique [0002] The sliding rheostat is an important element in the circuit. It can change its own resistance by moving the position of the sliding piece, thereby playing the role of controlling the circuit. In circuit analysis, the sliding rheostat can be used as a fixed-value resistor or a variable-value resistor. [0003] For many specific occasions, where the resistance value requires infinite change, the current varistors on the market are adjusted manually. The screw rod is turned by the handwheel, and the screw rod drives the sliding contact. The sliding contact can move back and forth on the surface of the resistance wire. Change the effective resistance value of the resistance wire connected to the loop. [0004] However, this ...

Claims

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Application Information

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IPC IPC(8): H01C10/42H01C10/14H01C10/30
CPCH01C10/42H01C10/14H01C10/301
Inventor 陆峰
Owner 上海文顺电器有限公司
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