CN115830934A - Training device for secondary equipment terminal wiring - Google Patents
Training device for secondary equipment terminal wiring Download PDFInfo
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- CN115830934A CN115830934A CN202211442015.4A CN202211442015A CN115830934A CN 115830934 A CN115830934 A CN 115830934A CN 202211442015 A CN202211442015 A CN 202211442015A CN 115830934 A CN115830934 A CN 115830934A
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Abstract
The invention particularly relates to a training device for secondary equipment terminal wiring, which comprises a device main body, and an upper computer, a PLC (programmable logic controller), a mouse key, a power supply, a relay array and a terminal row corresponding to the relay array, which are arranged on the device main body; the power supply supplies power to the upper computer and the PLC, and the power supply of the relay array is controlled by a digital quantity output port of the PLC; the upper computer forms a terminal wiring examination question according to an examination instruction input by a mouse key; the upper computer realizes man-machine interaction through a mouse key, and controls the PLC to complete resistance value measurement of all wiring channels in the terminal wiring examination question according to configuration parameters input by the mouse key; and the PLC controller obtains a test result according to the resistance value of the wiring channel and sends the test result to an upper computer for holding. The training device for wiring of the secondary equipment terminal has double functions of skill training and examination, and improves the wiring accuracy and the compliance of a wiring operator.
Description
Technical Field
The invention relates to the technical field of automatic control, in particular to a training device for secondary equipment terminal wiring.
Background
In the field of automation control, a wiring terminal is commonly used for carrying out junction and tapping on a power supply, a control signal or a sampling signal and the like. And the work of the part is manually wired, so that the system has faults caused by artificial factors such as terminal missing connection, looseness, misconnection and the like, and even influences personnel or production safety in severe cases. Therefore, it is essential to improve the wiring compliance of field operators and service personnel. Based on the conditions of different manufacturers, application scenes, wiring types and the like of the terminals, no special training equipment or device for terminal wiring is provided at present.
Disclosure of Invention
Therefore, the training device for wiring of the secondary equipment terminal has double functions of skill training and examination, and wiring accuracy and compliance of a wiring operator are improved.
In order to achieve the above purpose, the invention provides the following technical scheme:
a training device for secondary equipment terminal wiring comprises a device main body, and an upper computer, a PLC (programmable logic controller), a mouse key, a power supply, a relay array and a terminal row corresponding to the relay array, which are arranged on the device main body; the power supply supplies power to the upper computer and the PLC, and the power supply of the relay array is controlled by a digital quantity output port of the PLC; the upper computer forms a terminal wiring examination question according to an examination instruction input by a mouse key, and a user completes a terminal wiring test on the terminal strip according to the terminal wiring examination question; the upper computer realizes human-computer interaction through a mouse key, and after a user finishes a terminal wiring test, the upper computer controls the PLC to finish resistance value measurement of all wiring channels in the terminal wiring examination question according to configuration parameters input by the mouse key; and the PLC controller obtains a test result according to the resistance value of the wiring channel and sends the test result to the upper computer for holding.
Furthermore, the relay array is composed of a plurality of relays, and the left side and the right side of the terminal strip are both fixed terminal strips; the middle of each terminal row is a terminal wiring area for a user to finish terminal wiring test according to terminal wiring examination questions; a user connects the terminal corresponding to the relay in the terminal connection area according to the content of the terminal connection examination question to form a connection channel and complete the terminal connection test; the PLC is provided with a plurality of paths of digital quantity output ports, the number of relays of the relay array is matched with the number of the digital quantity output ports of the PLC, each path of digital quantity output port is respectively connected with a coil of one relay of the relay array, and the power supply of each relay of the relay array is controlled by one digital quantity output port corresponding to the PLC; the user inputs configuration parameters through a mouse key, and the upper computer controls the output level of the digital quantity output port according to the configuration parameters, so that the relay is controlled to be disconnected or closed, and the resistance value measurement of the wiring channel is completed.
Furthermore, all relays of the relay array are solid-state relays with four pairs of normally open contacts and are controlled by digital output ports corresponding to the PLC; when the digital output port of the PLC controller outputs high level, the corresponding relay is electrified, the four normally open contacts are closed, and the corresponding channel is gated; at any time, when only one coil of the relay corresponding to the left side of the terminal block is electrified, four pairs of normally open contacts of the relay are closed; when only one coil of the relay corresponding to the right side of the terminal block is electrified, the four pairs of normally open contacts of the relay are closed.
Furthermore, the PLC comprises a resistance measurement interface; the terminal strip comprises two serial communication interfaces, namely a first serial communication interface and a second serial communication interface; one end of the resistance measurement interface is connected with a first serial communication interface of the terminal row, and the other end of the resistance measurement interface is connected with a second serial communication interface of the terminal row;
the PLC controller executes the following steps in a traversing manner until the resistance value measurement of all the wiring channels in the terminal wiring examination questions is completed: the PLC controller controls a wiring channel to output a gating signal corresponding to the relay, wherein the gating signal is related to the relay and is connected with the wiring channel, and the resistance of the wiring channel is measured by the PLC controller; the gating signal is that only the coil of the relay related to the wiring channel in the relay on the left side of the terminal block is electrified, and only the coil of the relay related to the wiring channel in the relay on the right side of the terminal block is electrified.
In one embodiment, the relay array comprises a relay array A, a relay array B, a relay array C and a relay array D, wherein the terminal row A corresponding to the relay array A and the terminal row C corresponding to the relay array C are symmetrical left and right, and the terminal row B corresponding to the relay array B and the terminal row D corresponding to the relay array D are symmetrical left and right; the left side and the right side of the terminal strip A, the terminal strip B, the terminal strip C and the terminal strip D are all fixed terminal strips, and the middles of the terminal strip A, the terminal strip B, the terminal strip C and the terminal strip D are respectively a wiring area A, a wiring area B, a wiring area C and a wiring area D of a terminal, so that a user can complete terminal wiring test according to terminal wiring examination questions; the wiring area A and the wiring area B are first test areas, the wiring area C and the wiring area D are second test areas, the first test areas and the second test areas cannot be wired across the areas, the condition that wiring across the first test areas and the second test areas is not involved in terminal wiring examination questions is avoided, one user completes terminal wiring tests in the first test areas or the second test areas according to the content of the terminal wiring examination questions, and the two users are supported to complete the terminal wiring tests in the first test areas and the second test areas respectively.
In one embodiment, a user connects terminals on the left side of the terminal block A or the terminal block B with terminals on the right side of the terminal block A or the terminal block B in the first test area according to the contents of the terminal connection examination questions to form a connection channel, and the terminal connection test in the first test area is completed; and the user connects the left terminal of the terminal row C or the terminal row D with the right terminal of the terminal row C or the terminal row D in the second test area according to the content of the terminal connection examination questions to form a connection channel, so that the terminal connection test in the second test area is completed.
In one embodiment, the relay array A, the relay array B, the relay array C and the relay array D are all composed of 98 relays; the PLC is provided with 98 digital quantity output ports, each digital quantity output port is respectively connected with a coil of one relay of the relay array A, the relay array B, the relay array C and the relay array D, and the power supply of each relay of the relay array A, the relay array B, the relay array C and the relay array D is controlled by one digital quantity output port corresponding to the PLC; the user inputs configuration parameters through a mouse key, and the upper computer controls the output level of the digital quantity output port according to the configuration parameters, so that the relay is controlled to be disconnected or closed, and the resistance value of the wiring channel is measured.
In one embodiment, the relay array A comprises relays K1, K2, K11_1-K58_1, K59_1-K106_1; relays K11_1-K58_1 are connected in parallel in pairs, relays K59_1-K106_1 are connected in parallel in pairs, relays K1 are respectively connected with relays K11_1-K58_1 in series, and relays K2 are respectively connected with relays K59_1-K106_1 in series;
the relay array B comprises relays K3, K4, K11_2-K58_2 and K59_2-K106_2; relays K11_2-K58_2 are connected in parallel in pairs, relays K59_2-K106_2 are connected in parallel in pairs, relay K3 is connected in series with relays K11_2-K58_2 respectively, and relay K4 is connected in series with relays K59_2-K106_2 respectively;
the relay array C comprises relays K5, K6, K11_3-K58_3 and K59_3-K106_3; relays K11_3-K58_3 are connected in parallel in pairs, relays K59_3-K106_3 are connected in parallel in pairs, relay K5 is connected in series with relays K11_3-K58_3 respectively, and relay K6 is connected in series with relays K59_3-K106_3 respectively;
the relay array D comprises relays K7, K8, K11_4-K58_4 and K59_4-K106_4; relays K11_4-K58_4 are connected in parallel in pairs, relays K59_4-K106_4 are connected in parallel in pairs, relay K7 is connected in series with relays K11_4-K58_4 respectively, and relay K8 is connected in series with relays K59_4-K106_4 respectively;
the PLC controller comprises a resistance measuring interface; the terminal strip A, the terminal strip B, the terminal strip C and the terminal strip D respectively comprise two serial communication interfaces which are respectively a first serial communication interface and a second serial communication interface; one end of the resistance measurement interface is respectively connected with a first serial communication interface of the terminal row A, the terminal row B, the terminal row C and the terminal row D, and the other end of the resistance measurement interface is respectively connected with a second serial communication interface of the terminal row A, the terminal row B, the terminal row C and the terminal row D;
the first serial communication interface of the terminal block A is connected with the relay K1 in series, and the second serial communication interface is connected with the relay K2 in series; the first serial communication interface of the terminal block B is connected with the relay K3 in series, and the second serial communication interface is connected with the relay K4 in series; the first serial communication interface of the terminal row C is connected with the relay K5 in series, and the second serial communication interface of the terminal row C is connected with the relay K6 in series; and the first serial communication interface of the terminal block D is connected with the relay K7 in series, and the second serial communication interface is connected with the relay K8 in series.
In one embodiment, the relays K11 to K106 of the relay array a, the relay array B, the relay array C and the relay array D are all solid-state relays with four pairs of normally open contacts; the four pairs of normally open contacts of the relays K11-K106 are controlled by digital output ports corresponding to the PLC, when the digital output ports of the PLC output high levels, the corresponding relays are powered on, the four pairs of normally open contacts are closed, and the corresponding channels are gated; at any time, when the coil of only one relay in the relays K11-K58 is electrified, the four normally open contacts of the relay are closed; meanwhile, when only one coil of the relays K59-K106 _ is electrified, the four normally open contacts of the relay are closed.
Further, the resistance value of the wiring channel measured by the PLC controller does not include an on-resistance. Furthermore, the upper computer comprises a terminal wiring question bank, and a plurality of terminal wiring questions are stored in the terminal wiring question bank; the upper computer extracts a terminal wiring question combination from the terminal wiring question bank according to an examination instruction input by a mouse key to form a terminal wiring examination question; and the PLC judges whether the number of the wiring terminal is correct enough and whether the wiring is in a virtual connection or not according to the resistance value of each wiring channel, so that a test result is obtained and sent to an upper computer for holding.
Furthermore, the upper computer is provided with common terminal wiring description video teaching software, and the terminal wiring description video teaching software displays the terminal wiring description contents to a user in a video mode.
Further, the terminal connection description content includes terminal characteristics, a terminal connection mode, connection notice and safety check information.
Further, the power supply includes a DC power supply and a circuit breaker; an external alternating current power supply is divided into two paths of power supplies after passing through a breaker; one path of power supply is transmitted to the upper computer to supply power to the upper computer; and the other power supply is transmitted to a DC power supply, and the DC power supply outputs a direct current power supply and then transmits the direct current power supply to the PLC controller to supply power for the PLC controller.
In one embodiment, a heat dissipation fan is installed at the top of the device main body, and an upper computer, a PLC (programmable logic controller), a mouse key, a DC (direct current) power supply, a breaker and a relay array installation plate are installed on the front surface of the device main body; the relay array mounting plate is provided with a relay array; and the back surface of the device main body is provided with a terminal strip corresponding to the relay array.
Further, the terminal block is fixed on the back of the device main body through the assembly of the first electric guide rail, the second electric guide rail and the third electric guide rail; the terminal strip is laid with cables through the first wire groove, the second wire groove, the third wire groove and the fourth wire groove which are fixed on the back of the device main body through screws.
Further, the terminal row is a widesmiller terminal row or a phoenix terminal row, the widesmiller terminal row includes AKZ/SAK series, WDU/WTR series, Z series, and WDK series, and the phoenix terminal row includes ST series, PT series, and UK series.
Further, the DC power supply is a 24V DC power supply.
Furthermore, the upper computer is in communication connection with an external printing device and controls the printing device to print the stored test result.
Further, training set is used in secondary equipment terminal wiring still includes a set of moment screwdriver and supplies the user to choose for use according to different terminals.
The invention has the beneficial technical effects that:
the training device for secondary equipment terminal wiring meets the daily practice requirements of electrical and instrument control professionals on secondary equipment terminal wiring, strengthens the awareness of maintainers on various terminal models and wiring methods, achieves the purposes of systematically improving the safety level of equipment and the execution reliability of emergency commands, and reduces the probability of human error.
Drawings
FIG. 1 is a front view of a training apparatus for secondary equipment terminal connection according to the present invention;
FIG. 2 is a rear view of the training apparatus for secondary equipment terminal connection of the present invention;
FIG. 3 is a perspective view of a training apparatus for secondary equipment terminal connection according to the present invention;
fig. 4 is a schematic diagram of the logic control of the relay array.
In the figure, 1-a cooling fan, 2-an upper computer, 3-a PLC controller, 4-a mouse key, 5-a DC power supply, 6-a circuit breaker, 7-a relay array mounting plate, 8-a first electric guide rail, 9-a second electric guide rail, 10-a third electric guide rail, 11-a first wire slot, 12-a second wire slot, 13-a third wire slot and 14-a fourth wire slot.
Detailed Description
In the description of the present invention, it is to be understood that the terms "top", "bottom", "front", "back", "left", "right", "upper", "lower", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, the first, second, third, fourth, etc. words used before the name are used only for distinguishing different objects with the same name, and have no other meanings.
The present invention is described in further detail below with reference to the following examples and examples.
Example 1
Referring to fig. 1 to 4, the present invention provides a training apparatus for secondary equipment terminal wiring, including an apparatus main body; a heat radiation fan 1 is arranged at the top of the device main body; the front surface of the device main body is provided with an upper computer 2, a PLC 3, a mouse key 4, a DC power supply 5, a breaker 6 and a relay array mounting plate 7; the relay array mounting plate 7 is provided with a relay array; the back of the device main body is provided with a terminal strip corresponding to the relay array; the external alternating current power supply is divided into two paths of power supplies after passing through the circuit breaker 6; one path of power supply is transmitted to the upper computer 2 to supply power to the upper computer 2; the other power supply is transmitted to a DC power supply 5, and the DC power supply 5 outputs a direct current power supply and then transmits the direct current power supply to the PLC controller 3 to supply power for the PLC controller 3; the power supply of the relay array is controlled by a digital quantity output port of the PLC 3; the upper computer 2 forms terminal wiring examination questions according to examination instructions input by the mouse key 4, and a user completes terminal wiring tests on the terminal strip according to the terminal wiring examination questions; the upper computer 2 realizes man-machine interaction through a mouse key 4, and after a user finishes a terminal wiring test, the upper computer 2 controls the PLC 3 to finish resistance values of all wiring channels in the terminal wiring examination question according to configuration parameters input by the mouse key 4; and the PLC 3 obtains a test result according to the resistance value of the wiring channel and sends the test result to the upper computer 2 for holding.
The relay array comprises a relay array A, a relay array B, a relay array C and a relay array D; the left side of the back of the device main body is provided with a terminal block A corresponding to the relay array A and a terminal block B corresponding to the relay array B in an up-down symmetrical mode; a terminal strip C corresponding to the relay array C and a terminal strip D corresponding to the relay array D are vertically and symmetrically arranged on the right side of the back of the device main body; the terminal row A and the terminal row C are symmetrical left and right, and the terminal row B and the terminal row D are symmetrical left and right.
The relay array A consists of 98 relays, and comprises relays K1, K2, K11_1-K58_1 and K59_1-K106_1; the relays K11_1-K58_1 are connected in parallel in pairs, the relays K59_1-K106_1 are connected in parallel in pairs, the relays K1 are respectively connected with the relays K11_1-K58_1 in series, and the relays K2 are respectively connected with the relays K59_1-K106_1 in series.
The relay array B consists of 98 relays, including relays K3, K4, K11_2-K58_2 and K59_2-K106_2; the relays K11_2-K58_2 are connected in parallel in pairs, the relays K59_2-K106_2 are connected in parallel in pairs, the relay K3 is connected in series with the relays K11_2-K58_2 respectively, and the relay K4 is connected in series with the relays K59_2-K106_2 respectively.
The relay array C consists of 98 relays, including relays K5, K6, K11_3-K58_3 and K59_3-K106_3; relays K11_3-K58_3 are connected in parallel two by two, relays K59_3-K106_3 are connected in parallel two by two, relay K5 is connected in series with relays K11_3-K58_3 respectively, and relay K6 is connected in series with relays K59_3-K106_3 respectively.
The relay array D consists of 98 relays, including relays K7, K8, K11_4-K58_4 and K59_4-K106_4; relays K11_4-K58_4 are connected in parallel two by two, relays K59_4-K106_4 are connected in parallel two by two, relay K7 is connected in series with relays K11_4-K58_4 respectively, and relay K8 is connected in series with relays K59_4-K106_4 respectively.
The left side and the right side of terminal row A, terminal row B, terminal row C and terminal row D are fixed terminal row, the centre of terminal row A, terminal row B, terminal row C and terminal row D is the regional A of terminal, the regional B of terminal, the regional C of terminal and the regional D of terminal respectively, supplies the user to accomplish the terminal wiring test according to the terminal wiring examination question.
The wiring area A and the wiring area B are first test areas, the wiring area C and the wiring area D are second test areas, the first test areas and the second test areas cannot be wired across the areas, the condition that wiring across the first test areas and the second test areas is not involved in terminal wiring examination questions is avoided, one user completes terminal wiring tests in the first test areas or the second test areas according to the content of the terminal wiring examination questions, and the two users are supported to complete the terminal wiring tests in the first test areas and the second test areas respectively.
And a user connects the terminal corresponding to the relay in the relay K11_1-K58_1 or the relay K11_2-K58_2 with the terminal corresponding to the relay in the relay K59_1-K106_1 or the relay K59_2-K106_2 in the first test area according to the content of the terminal connection examination questions to form a connection channel, and the terminal connection test in the first test area is completed.
And the user connects the terminal corresponding to the relay in the relay K11_3-K58_3 or K11_4-K58_4 with the terminal corresponding to the relay in the relay K59_3-K106_3 or K59_4-K106_4 in the second test area according to the content of the terminal connection examination questions to form a connection channel, and the terminal connection test in the second test area is completed.
The terminal row A, the terminal row B, the terminal row C and the terminal row D are Wedneller terminal rows or phoenix terminal rows, the Wedneller terminal rows comprise AKZ/SAK series, WDU/WTR series, Z series and WDK series, the phoenix terminal rows comprise ST series, PT series and UK series, and the terminal types can be expanded and replaced.
The PLC controller comprises a resistance measuring interface; the terminal strip A, the terminal strip B, the terminal strip C and the terminal strip D respectively comprise two serial communication interfaces, namely a first serial communication interface COM _ A and a second serial communication interface COM _ B; one end of the resistance measurement interface is connected with the first serial communication interface COM _ A of the terminal row A, the terminal row B, the terminal row C and the terminal row D respectively, the other end of the resistance measurement interface is connected with the second serial communication interface COM _ B of the terminal row A, the terminal row B, the terminal row C and the terminal row D respectively, and the resistance value of a wiring channel among the first serial communication interface COM _ A and the second serial communication interface COM _ B of the terminal row A, the terminal row B, the terminal row C and the terminal row D is measured.
The first serial communication interface COM _ A of the terminal row A is connected with the relay K1 in series, and the second serial communication interface COM _ B is connected with the relay K2 in series; a first serial communication interface COM _ A of the terminal block B is connected with the relay K3 in series, and a second serial communication interface COM _ B is connected with the relay K4 in series; the first serial communication interface COM _ A of the terminal row C is connected with the relay K5 in series, and the second serial communication interface COM _ B of the terminal row C is connected with the relay K6 in series; and a first serial communication interface COM _ A of the terminal row D is connected with the relay K7 in series, and a second serial communication interface COM _ B of the terminal row D is connected with the relay K8 in series.
The PLC is provided with 98 digital quantity output ports, each digital quantity output port is respectively connected with a coil of one relay of the relay array A, the relay array B, the relay array C and the relay array D, and the power supply of each relay of the relay array A, the relay array B, the relay array C and the relay array D is controlled by one digital quantity output port corresponding to the PLC; the user inputs configuration parameters through the mouse key 4, and the upper computer 2 controls the output level of the digital quantity output port according to the configuration parameters, so that the relay is controlled to be disconnected or attracted, and the measurement of the resistance value of the wiring channel is completed.
The relays K11-K106 of the relay array A, the relay array B, the relay array C and the relay array D are all solid-state relays with four pairs of normally open contacts; the four pairs of normally open contacts of the relays K11-K106 are controlled by digital output ports corresponding to the PLC, when the digital output ports of the PLC output high levels, the corresponding relays are powered on, the four pairs of normally open contacts are closed, and the corresponding channels are gated; at any time, when the coil of only one relay in the relays K11-K58 is electrified, the four normally open contacts of the relay are closed; meanwhile, when only one coil of each relay in the relays K59-K106 _ is electrified, the four normally open contacts of each relay are attracted, the PLC can measure the resistance value of the wiring channel at the moment, the resistance measuring interface of the PLC can only test one wiring channel at a time, the testing result is not influenced by other wiring channels, and therefore the accuracy of resistance value measurement is guaranteed.
The upper computer 2 is provided with common terminal wiring description video teaching software, the terminal wiring description video teaching software displays terminal wiring description contents to a user in a video mode, the terminal wiring description contents comprise information such as terminal characteristics, terminal wiring modes, wiring cautions and safety inspection, and the user can learn by opening the software;
the upper computer comprises a terminal wiring question bank, and a plurality of terminal wiring questions are stored in the terminal wiring question bank; the upper computer 2 extracts a terminal wiring question combination from the terminal wiring question bank according to the examination instruction input by the mouse key 4 to form a terminal wiring question; the user completes the terminal wiring test in the terminal wiring area according to the terminal wiring examination question; after the user finishes the terminal wiring test, the upper computer 2 controls the PLC 3 to measure the resistance value of each wiring channel one by one according to the configuration parameters input by the mouse key 4;
the PLC 3 judges whether the number of the wiring terminal is correct enough and whether the wiring is in a virtual connection or not according to the resistance value of each wiring channel, so that a test result is obtained and sent to the upper computer 2 for holding; and the upper computer 2 is in communication connection with external printing equipment and controls the printing equipment to print the stored test result.
The terminal row A, the terminal row B, the terminal row C and the terminal row D are assembled and fixed on the back of the device body through a first electric guide rail 8, a second electric guide rail 9 and a third electric guide rail 10; the first electric guide rail 8, the second electric guide rail 9 and the third electric guide rail 10 are all 35mm wide electric guide rails of German DIN standard; the terminal strip A, the terminal strip B, the terminal strip C and the terminal strip D are respectively provided with cables through a first wire groove 11, a second wire groove 12, a third wire groove 13 and a fourth wire groove 14, and the first wire groove 11, the second wire groove 12, the third wire groove 13 and the fourth wire groove 14 are fixed on the back of the device main body through screws; the DC power supply 5 is a 24V DC power supply.
The training device for secondary equipment terminal wiring is provided with a set of torque screwdriver, and a user needs to select proper torque according to different terminals.
Further, when the PLC controller measures the resistance value of each wiring channel of the wiring area a according to the terminal wiring examination question, the method includes the following steps:
step 2, the PLC controller executes the following steps in a traversing manner until the resistance values of all the wiring channels in the terminal wiring examination questions are finished: the PLC controller controls a wiring channel to output a gating signal corresponding to the relay, wherein the gating signal is related to the relay and is connected with the wiring channel, and the resistance of the wiring channel is measured by the PLC controller; the gating signals are that only the coil of the wiring channel related to the relay in the relays K11_1-K58_1 is electrified, and only the coil of the wiring channel related to the relay in the relays K59_1-K106_1 is electrified.
At any moment, when only one coil of the relays K11_1-K58_1 is electrified, the four normally open contacts of the relays are closed; meanwhile, when only one coil of one relay in the K59_1-K106_1 is electrified, the four normally open contacts of the relay are attracted, and at the moment, the PLC can measure the resistance value of the wiring channel, so that the PLC can test only one wiring channel at each time, and the test result is not influenced by other wiring channels.
Further, when the PLC controller measures the resistance value of each wiring channel of the wiring area B according to the terminal wiring examination question, the method includes the following steps:
step 2, the PLC controller executes the following steps in a traversing manner until the resistance values of all the wiring channels in the terminal wiring examination questions are finished: the PLC controller controls a wiring channel to output a gating signal corresponding to the relay, wherein the gating signal is related to the relay and is connected with the wiring channel, and the resistance of the wiring channel is measured by the PLC controller; the gating signals are that only the coil of the wiring channel related to the relay in the relays K11_2-K58_2 is electrified, and only the coil of the wiring channel related to the relay in the relays K59_2-K106_2 is electrified.
At any moment, when only one coil of the relays K11_2-K58_2 is electrified, the four normally open contacts of the relays are closed; meanwhile, when only one coil of one relay in K59_2-K106_2 is electrified, the four normally open contacts of the relay are attracted, and at the moment, the PLC can measure the resistance value of the wiring channel, so that the PLC can test only one wiring channel at each time, and the test result is not influenced by other wiring channels.
When the PLC controller measures the resistance value of each wiring channel of the wiring area AB according to the examination question of terminal wiring, the method comprises the following steps:
step 2, the PLC traverses and executes the following steps until the resistance value of the wiring channel between K1 and K4 in the terminal wiring examination question is finished: the PLC controller controls a wiring channel to output a gating signal corresponding to the relay, wherein the gating signal is related to the relay and is connected with the wiring channel, and the resistance of the wiring channel is measured by the PLC controller; the gating signals are that only the coil of the wiring channel related to the relay in the relays K11_1-K58_1 is electrified, and only the coil of the wiring channel related to the relay in the relays K59_2-K106_2 is electrified;
Further, when the PLC controller measures the resistance value of each wiring channel of the wiring area C according to the terminal wiring examination question, the method includes the following steps:
step 2, the PLC controller executes the following steps in a traversing manner until the resistance values of all the wiring channels in the terminal wiring examination questions are finished: the PLC controller controls a wiring channel to output a gating signal corresponding to the relay, wherein the gating signal is related to the relay and is connected with the wiring channel, and the resistance of the wiring channel is measured by the PLC controller; the gating signals are that only the coil of the wiring channel related to the relay in the relays K11_3-K58_3 is electrified, and only the coil of the wiring channel related to the relay in the relays K59_3-K106_3 is electrified.
At any moment, when only one coil of the relays K11_3-K58_3 is electrified, the four normally open contacts of the relay are closed; meanwhile, when only one coil of one relay in the K59_3-K106_3 is electrified, the four normally open contacts of the relay are attracted, and at the moment, the PLC can measure the resistance value of the wiring channel, so that the PLC can test only one wiring channel at each time, and the test result is not influenced by other wiring channels.
Further, when the PLC measures the resistance value of each wiring channel of the wiring area D according to the terminal wiring examination question, the method comprises the following steps:
step 2, the PLC controller executes the following steps in a traversing manner until the resistance values of all the wiring channels in the terminal wiring examination questions are finished: the PLC controller controls a wiring channel to output a gating signal corresponding to the relay, wherein the gating signal is related to the relay and is connected with the wiring channel, and the resistance of the wiring channel is measured by the PLC controller; the gating signals are that only the coil of the wiring channel related to the relay in the relays K11_4-K58_4 is electrified, and only the coil of the wiring channel related to the relay in the relays K59_4-K106_4 is electrified.
At any moment, when only one coil of the relays K11_4-K58_4 is electrified, the four normally open contacts of the relay are closed; meanwhile, when only one coil of one relay in K59_4-K106_4 is electrified, the four normally open contacts of the relay are attracted, and at the moment, the PLC can measure the resistance value of the wiring channel, so that the PLC can test only one wiring channel at each time, and the test result is not influenced by other wiring channels.
When the PLC measures the resistance value of each wiring channel of the wiring area CD according to the terminal wiring examination question, the method comprises the following steps:
step 2, the PLC traverses and executes the following steps until the resistance value of the wiring channel between K5 and K8 in the terminal wiring examination question is finished: the PLC controller controls a wiring channel to output a gating signal corresponding to the relay, wherein the gating signal is related to the relay and is connected with the wiring channel, and the resistance of the wiring channel is measured by the PLC controller; the gating signals are that only the coil of the wiring channel related to the relay in the relays K11_3-K58_3 is electrified, and only the coil of the wiring channel related to the relay in the relays K59_4-K106_4 is electrified;
and 4, the PLC traverses and executes the following steps until the resistance value of the wiring channel between K6 and K7 in the terminal wiring examination question is finished: the PLC controller controls a wiring channel to output a gating signal corresponding to the relay, wherein the digital output port corresponding to the relay is related to the wiring channel, the gating signal is connected with the wiring channel and related to the relay, and the PLC controller measures the resistance of the wiring channel; the gating signals are that only the coil of the wiring channel related to the relay in the relays K11_4-K58_4 is electrified, and only the coil of the wiring channel related to the relay in the relays K59_3-K106_3 is electrified.
Because the resistance value of the directly measured wiring channel comprises the on-resistances of the four normally open contacts, the PLC compensates the resistance value of the directly measured wiring channel to obtain the resistance value of the wiring channel without the on-resistance.
The training device for secondary equipment terminal wiring meets the daily practice requirements of electrical and instrument control professionals on secondary equipment terminal wiring, strengthens the awareness of maintainers on various terminal models and wiring methods, achieves the purposes of systematically improving the safety level of equipment and the execution reliability of emergency commands, and reduces the probability of human error.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (20)
1. A training device for secondary equipment terminal wiring is characterized by comprising a device main body, an upper computer (2), a PLC (programmable logic controller) (3), a mouse key (4), a power supply, a relay array and a terminal row corresponding to the relay array, wherein the upper computer, the PLC, the mouse key (4), the power supply, the relay array and the terminal row are arranged on the device main body; the power supply supplies power to the upper computer (2) and the PLC (3), and the power supply of the relay array is controlled by a digital quantity output port of the PLC (3); the upper computer (2) forms a terminal wiring examination question according to an examination instruction input by the mouse key (4), and a user completes a terminal wiring test on the terminal strip according to the terminal wiring examination question; the upper computer (2) realizes man-machine interaction through the mouse key (4), and after a user finishes terminal wiring test, the upper computer (2) controls the PLC (3) to finish resistance value measurement of all wiring channels in the terminal wiring examination question according to configuration parameters input by the mouse key (4); and the PLC (3) obtains a test result according to the resistance value of the wiring channel and sends the test result to the upper computer (2) for holding.
2. The training device for secondary equipment terminal wiring according to claim 1, wherein the relay array is composed of a plurality of relays, and both left and right sides of the terminal block are fixed terminal blocks; the middle of each terminal row is a terminal wiring area for a user to finish terminal wiring test according to terminal wiring examination questions; a user connects the terminal corresponding to the relay in the terminal connection area according to the content of the terminal connection examination question to form a connection channel and complete the terminal connection test; the PLC is provided with a plurality of paths of digital quantity output ports, the number of relays of the relay array is matched with the number of the digital quantity output ports of the PLC, each path of digital quantity output port is respectively connected with a coil of one relay of the relay array, and the power supply of each relay of the relay array is controlled by one digital quantity output port corresponding to the PLC; the user inputs configuration parameters through a mouse key (4), and the upper computer (2) controls the output level of the digital quantity output port according to the configuration parameters, so that the relay is controlled to be disconnected or attracted, and the resistance value measurement of the wiring channel is completed.
3. The training device for secondary equipment terminal wiring according to claim 2, wherein all relays of the relay array are solid-state relays with four pairs of normally open contacts and are controlled by digital output ports corresponding to the PLC; when the digital output port of the PLC controller outputs high level, the corresponding relay is electrified, the four normally open contacts are closed, and the corresponding channel is gated; at any time, when only one coil of the relay corresponding to the left side of the terminal block is electrified, four pairs of normally open contacts of the relay are closed; when only one coil of the relay corresponding to the right side of the terminal block is electrified, the four pairs of normally open contacts of the relay are closed.
4. The training device for secondary equipment terminal wiring according to claim 3, wherein the PLC comprises a resistance measurement interface; the terminal strip comprises two serial communication interfaces, namely a first serial communication interface and a second serial communication interface; one end of the resistance measurement interface is connected with a first serial communication interface of the terminal row, and the other end of the resistance measurement interface is connected with a second serial communication interface of the terminal row;
the PLC (3) executes the following steps in a traversing manner until the resistance value measurement of all the wiring channels in the terminal wiring examination question is completed: the PLC controller controls a wiring channel to output a gating signal corresponding to the relay, wherein the gating signal is related to the relay and is connected with the wiring channel, and the resistance of the wiring channel is measured by the PLC controller; the gating signal is that only the wiring channel in the relay on the left side of the terminal block relates to the coil electrification of the relay, and only the wiring channel in the relay on the right side of the terminal block relates to the coil electrification of the relay.
5. The training device for secondary equipment terminal wiring according to claim 4, wherein the relay array comprises a relay array A, a relay array B, a relay array C and a relay array D, the terminal row A corresponding to the relay array A and the terminal row C corresponding to the relay array C are symmetrical left and right, and the terminal row B corresponding to the relay array B and the terminal row D corresponding to the relay array D are symmetrical left and right; the left side and the right side of the terminal strip A, the terminal strip B, the terminal strip C and the terminal strip D are all fixed terminal strips, and the middles of the terminal strip A, the terminal strip B, the terminal strip C and the terminal strip D are respectively a wiring area A, a wiring area B, a wiring area C and a wiring area D of a terminal, so that a user can complete terminal wiring test according to terminal wiring examination questions; the wiring area A and the wiring area B are first test areas, the wiring area C and the wiring area D are second test areas, the first test areas and the second test areas cannot be wired across the areas, the condition that wiring across the first test areas and the second test areas is not involved in terminal wiring examination questions is avoided, one user completes terminal wiring tests in the first test areas or the second test areas according to the content of the terminal wiring examination questions, and the two users are supported to complete the terminal wiring tests in the first test areas and the second test areas respectively.
6. The training device for secondary equipment terminal wiring according to claim 5, wherein a user connects a terminal on the left side of the terminal block A or the terminal block B with a terminal on the right side of the terminal block A or the terminal block B in the first test area according to the content of the examination questions of terminal wiring to form a wiring channel, and the terminal wiring test in the first test area is completed; and the user connects the left terminal of the terminal row C or the terminal row D with the right terminal of the terminal row C or the terminal row D in the second test area according to the content of the terminal connection examination questions to form a connection channel, so that the terminal connection test in the second test area is completed.
7. The training device for secondary equipment terminal wiring according to claim 5, wherein the relay array A, the relay array B, the relay array C and the relay array D are each composed of 98 relays; the PLC is provided with 98 digital quantity output ports, each digital quantity output port is connected with a coil of one relay of the relay array A, the relay array B, the relay array C and the relay array D, and power supply of each relay of the relay array A, the relay array B, the relay array C and the relay array D is controlled by one digital quantity output port corresponding to the PLC; the user inputs configuration parameters through a mouse key (4), and the upper computer (2) controls the output level of the digital quantity output port according to the configuration parameters, so that the relay is controlled to be disconnected or attracted, and the measurement of the resistance value of the wiring channel is completed.
8. The training device for secondary equipment terminal wiring according to claim 5, wherein the relay array A comprises relays K1, K2, K11_1-K58_1, K59_1-K106_1; relays K11_1-K58_1 are connected in parallel in pairs, relays K59_1-K106_1 are connected in parallel in pairs, relays K1 are respectively connected with relays K11_1-K58_1 in series, and relays K2 are respectively connected with relays K59_1-K106_1 in series;
the relay array B comprises relays K3, K4, K11_2-K58_2 and K59_2-K106_2; relays K11_2-K58_2 are connected in parallel in pairs, relays K59_2-K106_2 are connected in parallel in pairs, relay K3 is connected in series with relays K11_2-K58_2 respectively, and relay K4 is connected in series with relays K59_2-K106_2 respectively;
the relay array C comprises relays K5, K6, K11_3-K58_3 and K59_3-K106_3; relays K11_3-K58_3 are connected in parallel in pairs, relays K59_3-K106_3 are connected in parallel in pairs, relay K5 is connected in series with relays K11_3-K58_3 respectively, and relay K6 is connected in series with relays K59_3-K106_3 respectively;
the relay array D comprises relays K7, K8, K11_4-K58_4 and K59_4-K106_4; relays K11_4-K58_4 are connected in parallel in pairs, relays K59_4-K106_4 are connected in parallel in pairs, relay K7 is connected in series with relays K11_4-K58_4 respectively, and relay K8 is connected in series with relays K59_4-K106_4 respectively;
the PLC controller comprises a resistance measuring interface; the terminal strip A, the terminal strip B, the terminal strip C and the terminal strip D respectively comprise two serial communication interfaces which are respectively a first serial communication interface and a second serial communication interface; one end of the resistance measurement interface is respectively connected with a first serial communication interface of the terminal row A, the terminal row B, the terminal row C and the terminal row D, and the other end of the resistance measurement interface is respectively connected with a second serial communication interface of the terminal row A, the terminal row B, the terminal row C and the terminal row D;
the first serial communication interface of the terminal block A is connected with the relay K1 in series, and the second serial communication interface is connected with the relay K2 in series; the first serial communication interface of the terminal block B is connected with the relay K3 in series, and the second serial communication interface is connected with the relay K4 in series; the first serial communication interface of the terminal row C is connected with the relay K5 in series, and the second serial communication interface of the terminal row C is connected with the relay K6 in series; and the first serial communication interface of the terminal block D is connected with the relay K7 in series, and the second serial communication interface is connected with the relay K8 in series.
9. The training device for secondary equipment terminal wiring according to claim 8, wherein the relays K11-K106 of the relay array a, the relay array B, the relay array C and the relay array D are all solid-state relays with four pairs of normally open contacts; the four pairs of normally open contacts of the relays K11-K106 are controlled by digital output ports corresponding to the PLC, when the digital output ports of the PLC output high levels, the corresponding relays are powered on, the four pairs of normally open contacts are closed, and the corresponding channels are gated; at any time, when the coil of only one relay in the relays K11-K58 is electrified, the four normally open contacts of the relay are closed; meanwhile, when only one coil of the relays K59-K106 _ is electrified, the four normally open contacts of the relay are closed.
10. The training device for secondary equipment terminal wiring according to claim 1, wherein the resistance value of the wiring channel measured by the PLC controller does not include an on-resistance.
11. The training device for secondary equipment terminal connection according to any one of claims 1-10, wherein the upper computer (2) comprises a terminal connection question bank, and a plurality of terminal connection questions are stored in the terminal connection question bank; the upper computer (2) extracts a terminal wiring question combination from the terminal wiring question library according to the examination instruction input by the mouse key (4) to form a terminal wiring examination question; and the PLC (3) judges whether the number of the wiring terminal is correct enough and whether the wiring is in a virtual connection or not according to the resistance value of each wiring channel, so that a test result is obtained and sent to the upper computer (2) for holding.
12. The training device for secondary equipment terminal wiring according to any one of claims 1 to 10, wherein common terminal wiring description video teaching software is installed in the upper computer (2), and the terminal wiring description video teaching software displays terminal wiring description contents to a user in a video mode.
13. The training apparatus for secondary equipment terminal connection according to claim 12, wherein the terminal connection description contents include terminal characteristics, terminal connection manner, connection notice, and safety inspection information.
14. The training apparatus for secondary equipment terminal wiring according to any one of claims 1 to 10, wherein the power supply includes a DC power supply (5) and a circuit breaker (6); an external alternating current power supply is divided into two paths of power supply sources after passing through a breaker (6); one path of power supply is transmitted to the upper computer (2) to supply power to the upper computer (2); and the other power supply is transmitted to a DC power supply (5), and the DC power supply (5) outputs a direct current power supply and then transmits the direct current power supply to the PLC controller (3) to supply power for the PLC controller (3).
15. The training device for secondary equipment terminal wiring according to claim 14, wherein a heat dissipation fan (1) is installed on the top of the device main body, and an upper computer (2), a PLC (3), a mouse key (4), a DC power supply (5), a circuit breaker (6) and a relay array installation plate (7) are installed on the front surface of the device main body; the relay array mounting plate (7) is provided with a relay array; and the back surface of the device main body is provided with a terminal strip corresponding to the relay array.
16. The training device for secondary equipment terminal wiring according to claim 15, wherein the terminal block is fixed to the back surface of the device body by fitting a first electrical rail (8), a second electrical rail (9) and a third electrical rail (10); the terminal strip is formed by laying cables in a first wire groove (11), a second wire groove (12), a third wire groove (13) and a fourth wire groove (14) which are fixed on the back surface of the device main body through screws.
17. The training device for secondary equipment terminal wiring according to claim 15, wherein the terminal row is a widesmiller terminal row including AKZ/SAK series, WDU/WTR series, Z series, and WDK series or a phoenix terminal row including ST series, PT series, and UK series.
18. The training device for secondary equipment terminal wiring according to any one of claims 1 to 10, wherein the DC power supply (5) is a 24V DC power supply.
19. The training device for secondary equipment terminal wiring according to any one of claims 1 to 10, wherein the upper computer (2) is in communication connection with an external printing device, and controls the printing device to print the stored test result.
20. The training device for secondary equipment terminal wiring according to any one of claims 1 to 10, further comprising a set of torque screwdrivers for users to select according to different terminals.
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| CN202211442015.4A CN115830934A (en) | 2022-11-15 | 2022-11-15 | Training device for secondary equipment terminal wiring |
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| CN202211442015.4A CN115830934A (en) | 2022-11-15 | 2022-11-15 | Training device for secondary equipment terminal wiring |
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