CN213937920U - Universal servo driver slave station expansion device based on optical fiber communication - Google Patents
Universal servo driver slave station expansion device based on optical fiber communication Download PDFInfo
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- CN213937920U CN213937920U CN202023130721.4U CN202023130721U CN213937920U CN 213937920 U CN213937920 U CN 213937920U CN 202023130721 U CN202023130721 U CN 202023130721U CN 213937920 U CN213937920 U CN 213937920U
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Abstract
The utility model discloses a general servo driver slave station expansion device based on optical fiber communication, which comprises a Field Programmable Gate Array (FPGA), a display, an optical fiber communication interface, a plurality of first input/output interfaces, a plurality of second input/output interfaces, a power circuit and a power interface; the FPGA comprises a plurality of encoder channels and IO channels; the encoder channel is connected with the first input/output interface and used for providing differential signal input, PFM output and motor enable signal output of the motor encoder; the IO channel is connected with the second input/output interface and used for providing positive and negative limiting signal output, zero return signal output, driver alarm signal output and zone bit input and output; the display, the optical fiber communication interface and the power circuit are connected with the FPGA, the optical fiber communication interface is externally connected with an optical fiber bus of the main station, and the power circuit is externally connected with a power supply through the power interface. The utility model provides an electromagnetic interference problem, avoided complicated wiring, improved the response speed and the stability of system.
Description
Technical Field
The utility model relates to a general servo driver slave station extension device based on optical fiber communication belongs to the industrial control field.
Background
In the whole servo system, motion control is a very important loop in the whole system. With the continuous development of the industry, higher requirements are put on the servo system. The prior servo system has the following problems: in complex industrial production, electromagnetic signals are very complex, the traditional Ethernet communication mode is subjected to electromagnetic interference, and the problems of signal loss and interference exist in long-distance transmission, so that the performance and stability of equipment are directly influenced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a general servo driver slave station extension fixture based on optical fiber communication has solved the problem that reveals in the background art.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a general servo driver slave station extension fixture based on optical fiber communication which characterized in that: the system comprises an FPGA, a display, an optical fiber communication interface, a plurality of first input/output interfaces, a plurality of second input/output interfaces, a power circuit and a power interface;
the FPGA comprises a plurality of encoder channels and IO channels; the encoder channel is connected with the first input/output interface and used for providing differential signal input, PFM output and motor enable signal output of the motor encoder; the IO channel is connected with the second input/output interface and used for providing positive and negative limiting signal output, zero return signal output, driver alarm signal output and zone bit input and output;
the display, the optical fiber communication interface and the power circuit are all connected with the FPGA, the optical fiber communication interface is externally connected with an optical fiber bus of the main station, and the power circuit is externally connected with a power supply through the power interface and supplies power for all power consumption parts.
The display comprises a display screen and a dial switch, the dial switch is used for setting the serial number of the slave station expansion device of the general servo driver, and the display screen displays the serial number of the slave station expansion device of the general servo driver.
The power circuit is externally connected with a 24V power supply through a power interface.
The display, the optical fiber communication interface, the first input/output interfaces, the second input/output interfaces and the power supply interface are exposed out of the front plate of the shell.
The upper plate of the shell is provided with a plurality of heat dissipation holes, the bottom of the inner cavity of the shell is provided with a heat dissipation fan which exhausts air upwards, and the heat dissipation fan is connected with the FPGA.
The top and the bottom of the shell back plate are protruded, and the protruded parts are provided with fixing holes for fixing the universal servo driver slave station expansion device.
The utility model discloses the beneficial effect who reaches: the utility model discloses an external fiber bus of fiber communication interface is connected with the main website through fiber bus to realize the cascade of a plurality of general servo driver slave station extension fixture through fiber bus, solved the electromagnetic interference problem, avoided complicated wiring, improved the response speed and the stability of system.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1, a slave station expansion apparatus based on a general servo driver for optical fiber communication includes an FPGA, a display 1, an optical fiber communication interface 2, a plurality of first input/output interfaces 4, a plurality of second input/output interfaces 5, a power circuit, and a power interface 3.
The FPGA comprises a plurality of encoder channels and IO channels, the encoder channels are connected with the first input/output interfaces 4 and correspond to the first input/output interfaces 4 one by one, and the encoder channels are used for providing differential signal input, PFM output and motor enable signal output of the motor encoder; the IO channels are connected with the second input/output interfaces 5 and correspond to the second input/output interfaces 5 one by one, and the IO channels are used for providing positive and negative limiting signal output, zero return signal output, driver alarm signal output and zone bit input and output.
The display 1, the optical fiber communication interface 2 and the power circuit are all connected with the FPGA, the optical fiber communication interface 2 is externally connected with an optical fiber bus, communication with the master station is achieved through the optical fiber bus, cascade connection of the slave station expansion devices of the universal servo drivers can be achieved, and the power circuit is externally connected with a power supply through the power interface 3 and supplies power for all power utilization parts.
The display 1 comprises an OLED display screen and a dial switch, the dial switch is used for setting the serial number of the slave station expansion device of the general servo driver, and the display screen displays the serial number of the slave station expansion device of the general servo driver. The purpose of the serial number is that the upper computer can correctly identify the corresponding extension device, so that information collection and device setting are performed, and the serial number can be uniformly distributed by the main station or set by a user through a dial switch.
The power interface 3 is externally connected with a 24V power supply, and the voltage of the power circuit is converted into power for each electric component.
The slave station expansion device of the general servo driver further comprises a shell and a circuit board fixed in the shell, the FPGA, the display 1, the optical fiber communication interface 2, the first input/output interfaces 4, the second input/output interfaces 5, the power circuit and the power interface 3 are all fixed on the circuit board, and the display 1, the optical fiber communication interface 2, the first input/output interfaces 4, the second input/output interfaces 5 and the power interface 3 are all exposed out of the front plate of the shell.
The upper plate of the shell is uniformly provided with a plurality of radiating holes 6 which are of a net structure, and the bottom of the inner cavity of the shell is provided with a radiating fan which exhausts air upwards and is connected with the FPGA, so that the radiating is facilitated.
The top and the bottom of the shell back plate are protruded, and the protruded parts are provided with fixing holes for fixing the universal servo driver slave station expansion device.
And the upper computer configures all the expansion devices through the serial numbers, and reads the state and the operating parameters of each expansion device. The main station sends control instructions such as position, speed, torque, PWM and enable to the expansion device through optical fibers, the universal expansion device sends positive and negative 10V analog quantity or PFM signals to the universal servo driver, the universal servo driver drives various motors, the motors send feedback to the expansion device through the encoder, the main station acquires running parameters of the motors through the expansion device, and the upper computer completes control and information acquisition of the motors through the main station.
The utility model discloses an external fiber bus of fiber communication interface is connected with the main website through fiber bus to realize the cascade of a plurality of general servo driver slave station extension fixture through fiber bus, solved the electromagnetic interference problem, avoided complicated wiring, improved the response speed and the stability of system.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (6)
1. The utility model provides a general servo driver slave station extension fixture based on optical fiber communication which characterized in that: the system comprises an FPGA, a display, an optical fiber communication interface, a plurality of first input/output interfaces, a plurality of second input/output interfaces, a power circuit and a power interface;
the FPGA comprises a plurality of encoder channels and IO channels; the encoder channel is connected with the first input/output interface and used for providing differential signal input, PFM output and motor enable signal output of the motor encoder; the IO channel is connected with the second input/output interface and used for providing positive and negative limiting signal output, zero return signal output, driver alarm signal output and zone bit input and output;
the display, the optical fiber communication interface and the power circuit are all connected with the FPGA, the optical fiber communication interface is externally connected with an optical fiber bus of the main station, and the power circuit is externally connected with a power supply through the power interface and supplies power for all power consumption parts.
2. The slave station expansion apparatus of claim 1, wherein the slave station expansion apparatus comprises: the display comprises a display screen and a dial switch, the dial switch is used for setting the serial number of the slave station expansion device of the general servo driver, and the display screen displays the serial number of the slave station expansion device of the general servo driver.
3. The slave station expansion apparatus of claim 1, wherein the slave station expansion apparatus comprises: the power circuit is externally connected with a 24V power supply through a power interface.
4. The slave station expansion apparatus of claim 1, wherein the slave station expansion apparatus comprises: the display, the optical fiber communication interface, the first input/output interfaces, the second input/output interfaces and the power supply interface are exposed out of the front plate of the shell.
5. The slave station expansion apparatus of claim 4, wherein the slave station expansion apparatus comprises: the upper plate of the shell is provided with a plurality of heat dissipation holes, the bottom of the inner cavity of the shell is provided with a heat dissipation fan which exhausts air upwards, and the heat dissipation fan is connected with the FPGA.
6. The slave station expansion apparatus of claim 4, wherein the slave station expansion apparatus comprises: the top and the bottom of the shell back plate are protruded, and the protruded parts are provided with fixing holes for fixing the universal servo driver slave station expansion device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023130721.4U CN213937920U (en) | 2020-12-23 | 2020-12-23 | Universal servo driver slave station expansion device based on optical fiber communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023130721.4U CN213937920U (en) | 2020-12-23 | 2020-12-23 | Universal servo driver slave station expansion device based on optical fiber communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213937920U true CN213937920U (en) | 2021-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023130721.4U Active CN213937920U (en) | 2020-12-23 | 2020-12-23 | Universal servo driver slave station expansion device based on optical fiber communication |
Country Status (1)
| Country | Link |
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| CN (1) | CN213937920U (en) |
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2020
- 2020-12-23 CN CN202023130721.4U patent/CN213937920U/en active Active
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