Take-up tension closed-loop control system
A tension control and closed-loop control technology, applied in the field of control systems, can solve the problems of loose wire rope, slow response speed of dynamic torque, and shrinking I-shaped wheel, etc., and achieve the effect of constant wire tension
Inactive Publication Date: 2016-11-23
博尔富(江苏)实业有限公司
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Problems solved by technology
The disadvantage of the non-feedback open-loop torque control method is that the dynamic torque response speed is slow
Due to this shortcoming, if the tension setting is slightly smaller when the whole machine is working, the steel wire rope for the take-up will be loose; Loose and tight), and the I-shaped wheel will be cracked in the case of tension
That is to say, such a control method cannot guarantee that the take-up tension during operation remains relatively constant.
Method used
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Embodiment 1
[0012] Such as figure 1 As shown, the winding tension control system of the present invention includes analog quantity given module 1, inverter module 2, motor output module 3, encoder feedback module 4 and PG card 5, analog quantity given module 1, inverter module 2 It is connected to the motor output module 3 in turn, the motor output module 3 is connected to the encoder feedback module 4, and the PG card 5 transmits the sensed signal to the inverter module 2 to form a closed loop control system.
[0013] The invention adopts the closed-loop torque control method of the frequency converter, which can make the dynamic torque response time less than or equal to 10ms. In terms of the closed-loop control principle of the inverter, it is necessary to install the feedback element encoder on the motor output module 3, and install the encoder board PG card 5 on the inverter module 2. Correctly wire the encoder feedback module 4 and the PG card, and set the relevant parameters of the i...
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The invention relates to a control system, in particular to a take-up tension closed-loop control system. According to the technical scheme, the take-up tension closed-loop control system comprises an analog quantity given module, a frequency converter module, a motor output module, an encoder feedback module and a PG card. The analog quantity given module, the frequency converter module and the motor output module are sequentially connected. The motor output module is connected with the encoder feedback module. The PG card transmits sensed signals to the frequency converter module so that the closed-loop control system can be formed. The take-up tension closed-loop control system has the advantages that the take-up tension of a steel wire rope can be guaranteed to be relatively constant, the steel wire rope does not move any longer in the take-up process, and a spool cannot be damaged due to take-up operation.
Description
Technical field [0001] The invention relates to a control system, in particular to a closed-loop control system for wire take-up tension. Background technique [0002] The rope car uses a frequency converter to control the output tension of the take-up motor. The output torque (tension) of the take-up motor is constant through the analog quantity (adjusting potentiometer) setting. However, the open-loop torque control method of the frequency converter is currently used in the market. The disadvantage of no feedback open-loop torque control method is the slow response speed of dynamic torque. Because of this shortcoming, when the whole machine is working, if the tension is set a little lower, the wire rope of the take-up will loosen; if the tension is set a little higher, the wire rope will be taut, and there will be jumps (1) Loosen one tight), the spool will be cracked under tension. That is to say, such a control method cannot guarantee that the winding tension during opera...
Claims
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Inventor 焦扬
Owner 博尔富(江苏)实业有限公司