CN211786667U - IO-saving motion control card switching unit - Google Patents

Abstract

The utility model discloses an province IO's motion control card switching unit, including power supply circuit, switch access pull-up circuit, trigger circuit, scram button logic circuit and pause button logic circuit, power supply circuit connects switch access pull-up circuit, trigger circuit, scram button logic circuit and pause button logic circuit respectively, and trigger circuit connects scram button logic circuit, pause button logic circuit and opto-coupler level conversion, and scram button logic circuit and pause button logic circuit all insert pull-up circuit with the switch and are connected, the utility model discloses the IO mouth application gate circuit and the trigger with a plurality of the same functions have carried out the set, have practiced thrift extra port, and are also more economical and reliable, can extensively apply to the industrial control field.

Description

IO-saving motion control card switching unit

Technical Field

The utility model relates to an intelligent control technical field specifically is a motion control card switching unit of province IO.

Background

At present, a large number of IO ports for digital signal transmission exist in a common industrial motion control panel, so that the whole circuit board has a larger volume and a more complex structure. But redundant parts exist, and the IO-saving circuit integrating the redundant parts through the digital gate circuit can effectively save the volume and the cost, and is more convenient to install and use compared with the IO-saving circuit. The movement control panel circuit structure which saves IO and can calibrate knife depth provided by the invention processes logic signals of 10 input ports of pause and scram into one signal output port by using an internal gate circuit and a trigger circuit, greatly optimizes the volume and wiring of a circuit board compared with the unused circuit, is more economic and reliable, can be widely applied to the industrial control neighborhood, and has greater practical significance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motion control card switching unit of province IO to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an IO-saving motion control card switching unit comprises a power circuit, a switch access pull-up circuit, a trigger circuit, an emergency stop button logic circuit and a pause button logic circuit, wherein the power circuit is respectively connected with the switch access pull-up circuit, the trigger circuit, the emergency stop button logic circuit and the pause button logic circuit, the trigger circuit is connected with the emergency stop button logic circuit, the pause button logic circuit and an optical coupler level switch, and the emergency stop button logic circuit and the pause button logic circuit are connected with the switch access pull-up circuit.

As a further aspect of the present invention: the power supply circuit adopts an LM2596 power supply chip, and the output voltage is 5V.

As a further aspect of the present invention: the switch access pull-up circuit comprises a 10-way pull-up resistor circuit.

As a further aspect of the present invention: the flip-flop circuit employs a 74HC74 chip.

As a further aspect of the present invention: the scram button logic circuit and the pause button logic circuit are both composed of a plurality of 74HC32 gate circuit chips.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the IO mouth application gate circuit with a plurality of the same functions and the trigger set, practiced thrift extra port, also more economical and reliable, can extensively apply to the industrial control field.

Drawings

Fig. 1 is a power supply circuit diagram.

Fig. 2 is a diagram of an external scram/pause switch access pull-up circuit.

FIG. 3 is a logic diagram of the design logic and the output level logic in the default state of the 74HC 74D flip-flop.

Fig. 4 is a logic circuit diagram of a five-way emergency stop button.

FIG. 5 is a logic circuit diagram of a five-way pause button.

Fig. 6 is a diagram of an optocoupler level conversion circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, in an embodiment of the present invention, an IO-saving motion control card switching unit includes a power circuit, a switch access pull-up circuit, a trigger circuit, an emergency stop button logic circuit and a pause button logic circuit, the power circuit is respectively connected to the switch access pull-up circuit, the trigger circuit, the emergency stop button logic circuit and the pause button logic circuit, the trigger circuit is connected to the emergency stop button logic circuit, the pause button logic circuit and the optical coupler level shift, and the emergency stop button logic circuit and the pause button logic circuit are both connected to the switch access pull-up circuit.

The control system uses a 24V DCDC power supply to be converted into a 5V direct current power supply to supply power for the system chip, and the 5V level output by the system chip is converted into a 24V level signal through the optocoupler and is input to an external IO terminal board of the motion control card. The IO logic of pause and scram is designed through the combination of the OR gate and the SR flip-flop + D flip-flop, and 10 DI which are originally used are changed into 1 DI.

The definition of sudden stop is stop no matter how many presses; for the definition of pause, stopping is carried out by pressing, and running is carried out by pressing again; the default system is running.

5 scram DI, 5 pause DI; the resulting signal input to the DI pin of the motion control card is output at PAUSE1 of FIG. 6.

Example 2: in addition to embodiment 1, the power supply circuit adopts an LM2596 power supply chip, and the output voltage is 5V. The switch access pull-up circuit comprises a 10-way pull-up resistor circuit. The flip-flop circuit uses a 74HC74 chip. The scram button logic and pause button logic are each comprised of a plurality of 74HC32 gate chips.

The utility model discloses an integral type design, identification device and cutter integration. The cutter is not required to be contacted, the abrasion is reduced, and the service life is prolonged. And the identification can be realized by a simple circuit, the cost is reduced, and the anti-interference capability is improved. Different circuit characteristics corresponding to different cutters are measured, and different cutter characteristic voltage signals are output through a conditioning circuit arranged at the rear end of the motor. The conditioning circuit is small in size, simple and convenient to mount, the size of the conditioning circuit is the same as that of the motor, and the additional size is almost not needed. The product supports six cutters, reduces cost and volume, and can quickly and accurately identify the cutter type.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. An IO-saving motion control card switching unit comprises a power circuit, a switch access pull-up circuit, a trigger circuit, an emergency stop button logic circuit and a pause button logic circuit, and is characterized in that the power circuit is respectively connected with the switch access pull-up circuit, the trigger circuit, the emergency stop button logic circuit and the pause button logic circuit, the trigger circuit is connected with the emergency stop button logic circuit, the pause button logic circuit and optical coupler level conversion, and the emergency stop button logic circuit and the pause button logic circuit are connected with the switch access pull-up circuit.

2. The IO-saving motion control card switching unit as claimed in claim 1, wherein the power circuit is an LM2596 power chip with an output voltage of 5V.

3. The IO-saving motion control card transfer unit of claim 1, wherein the switch access pull-up circuit comprises a 10 pull-up resistor circuit.

4. The IO-saving motion control card pod as claimed in claim 1, wherein the flip-flop circuit is a 74HC74 chip.

5. The IO-saving motion control card pod of claim 4, wherein the scram button logic and pause button logic are each comprised of a plurality of 74HC32 gate chips.

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