CN208384406U - A kind of frequency conversion equipment intelligence substation - Google Patents
A kind of frequency conversion equipment intelligence substation Download PDFInfo
- Publication number
- CN208384406U CN208384406U CN201820626803.1U CN201820626803U CN208384406U CN 208384406 U CN208384406 U CN 208384406U CN 201820626803 U CN201820626803 U CN 201820626803U CN 208384406 U CN208384406 U CN 208384406U
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- frequency conversion
- substation
- wireless terminal
- central station
- frequency
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Abstract
The utility model discloses a kind of frequency conversion equipment intelligence substations, including PLC and wireless terminal, the PLC includes 4 DI switching value channels, 1 DO switching value channel, 2 AI analog quantity channels and 1 AO analog quantity, 4 DI switching value channels are respectively connected to hand/auto state of equipment, operating status, malfunction, external interlocking, variable frequency starting order, frequency feedback and current feedback from top to bottom.The utility model is wired with wirelessly replacing, so that the upgrading cost of old control system reduces；System centre station is handled by the required state that wireless collection sends over, control function block exports result to control equipment executing agency, while this result is sent to central station, to be monitored and operate in host computer, ensure that the stability of system；Transformation process is carried out by equipment substep local flow improvement, is influenced on the overall operation of original system smaller or without influence.
Description
Technical field
The present invention relates to a kind of intelligent substations, specially a kind of frequency conversion equipment intelligence substation, belong to intelligent substation using skill
Art field.
Background technique
After the industrial products machining production line of early stage construction factory, sewage treatment plant's system run many years, due to electrically setting
The standby service life compared to mechanical equipment design is opposite to want short, robot control system(RCS) with age aging, plant maintenance not in time, product renewing
It regenerates, reasons, the signal of many equipment such as standby redundancy halt production can not be operated and be monitored in host computer, cause system long-term
Handle manual mode on the spot.Production run cost of labor more carries larger, and equipment failure rate is higher and higher, the water quality dealt
It is unstable, and probability of meeting water quality standard is decreased obviously, and full pond or the not major accidents such as qualified discharge often occurs.
Place that there are many deficiencies for current frequency conversion equipment intelligence substation, such as traditional frequency conversion intelligent substation use wired biography
Defeated, inquiry of breaking down is inconvenient, and whole system automatic control line identification is unclear, and when using old line, many signal transmitting do not come,
Unwrapping wire again is needed, wiring cost is increased；Entire transformation process is complicated, and construction period is longer, and transformation needs to have a power failure.
Summary of the invention
The object of the invention is that providing a kind of frequency conversion equipment intelligence substation to solve the above-mentioned problems.
The present invention is achieved through the following technical solutions above-mentioned purpose, and a kind of frequency conversion equipment intelligence substation, constituting has nothing
The intelligent substation of line transfer function, including PLC and wireless terminal, the PLC include 4 DI switching value channels, 1 DO switching value
Channel, 2 AI analog quantity channels and 1 AO analog quantity, 4 DI switching value channels be respectively connected to from top to bottom the hand of equipment/from
Dynamic state, operating status, malfunction, external interlocking, variable frequency starting order, frequency feedback and current feedback；1 DO switch
Amount channel and 1 AO analog quantity are all connected with frequency conversion and open order, and substation standard configuration RS485 communication interface passes through two core twisted-pair shielded wires
With the RS485 interface A of Intelligent wireless terminal B terminal connect, constitute have wireless transmission function intelligent substation；Wireless terminal
By being wirelessly connected central station wireless terminal, and central station wireless terminal connects central station PLC by RS485 communication interface.
Preferably, substation sends substation hand/auto state, operating status, malfunction, running frequency, fortune to central station
Row current data, while receiving the frequency conversion from central station and opening, stop control instruction and speed preset instruction.
Preferably, the PLC and wireless terminal external world's 220V power supply.
Preferably, 2 AI analog quantity channels are DC4-20mA, and AO analog quantity is DC4-20mA.
A kind of frequency conversion equipment intelligence substation, operation the following steps are included:
Step A, frequency enters calling pid function block first after giving, and frequency feedback information, which is sent to, calls PID function
Block enters back into frequency instruction, after then hand/auto state is opened, opens order closing when opening malfunction channel enters frequency conversion；
After malfunction is closed, the external interlocking channel of opening enters frequency conversion and opens order closing；Enter after outside interlocking channel is closed
Inter-interlock is opened into frequency conversion when inter-interlock and opens order closing, carries out in next step after inter-interlock channel is closed；
Step B, when central station issue halt instruction when, frequency conversion open order closing, when central station issue enabled instruction when into
Enter frequency conversion and open order opening, into next step；
Step C, frequency conversion opens order and opens countdown 5S, judges operating status, and internal connection is opened when operating status is closed
Lock；Inter-interlock is closed when operating status is opened.
The beneficial effects of the present invention are: the present invention with wirelessly replace it is wired so that the upgrading of old control system at
This reduction；System centre station is handled by the required state that wireless collection sends over, control function block exports result
To control equipment executing agency, while this result is sent to central station, to be monitored and operate in host computer, ensure that
The stability of system；Transformation process is carried out by equipment substep local flow improvement, is influenced on the overall operation of original system smaller or without shadow
It rings.
Detailed description of the invention
Fig. 1 is frequency conversion equipment intelligence of the present invention substation schematic diagram；
Fig. 2 is frequency conversion equipment intelligence substation control function block control flow chart of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1-2, a kind of frequency conversion equipment intelligence substation, including PLC and wireless terminal, the PLC includes 4
DI switching value channel, 1 DO switching value channel, 2 AI analog quantity channels and 1 AO analog quantity, 4 DI switching value channels are from upper
Hand/auto state, the operating status, malfunction, external interlocking, variable frequency starting order of equipment, frequency are respectively connected under
Feedback and current feedback；1 DO switching value channel and 1 AO analog quantity are all connected with frequency conversion and open order, substation standard configuration RS485 communication
Interface, by the RS485 interface A of two core twisted-pair shielded wires and Intelligent wireless terminal B terminal connect, constitute have wireless transmission
The intelligent substation of function；Wireless terminal is by being wirelessly connected central station wireless terminal, and central station wireless terminal is logical by RS485
Communication interface connects central station PLC.
Wherein, substation sends substation hand/auto state, operating status, malfunction, running frequency, operation to central station
Current data, while receiving the frequency conversion from central station and opening, stop control instruction and speed preset instruction.
Wherein, the PLC and wireless terminal external world's 220V power supply.
Wherein, 2 AI analog quantity channels are DC4-20mA, and AO analog quantity is DC4-20mA.
A kind of frequency conversion equipment intelligence substation, operation the following steps are included:
Step A, frequency enters calling pid function block first after giving, and frequency feedback information, which is sent to, calls PID function
Block enters back into frequency instruction, after then hand/auto state is opened, opens order closing when opening malfunction channel enters frequency conversion；
After malfunction is closed, the external interlocking channel of opening enters frequency conversion and opens order closing；Enter after outside interlocking channel is closed
Inter-interlock is opened into frequency conversion when inter-interlock and opens order closing, carries out in next step after inter-interlock channel is closed；
Step B, when central station issue halt instruction when, frequency conversion open order closing, when central station issue enabled instruction when into
Enter frequency conversion and open order opening, into next step；
Step C, frequency conversion opens order and opens countdown 5S, judges operating status, and internal connection is opened when operating status is closed
Lock；Inter-interlock is closed when operating status is opened.
Using intelligent substation of the invention the upgrading cost of old control system is reduced；It is logical to system centre station
It crosses the required state that wireless collection sends over to be handled, control function block exports result to control equipment executing agency, together
When this result is sent to central station, to be monitored and operate in host computer, ensure that the stability of system；Transformation process
It carries out, the overall operation of original system is influenced smaller or without influence by equipment substep local flow improvement.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (3)
1. a kind of frequency conversion equipment intelligence substation, it is characterised in that: including PLC and wireless terminal, the PLC includes 4 DI switches
Amount channel, 1 DO switching value channel, 2 AI analog quantity channels and 1 AO analog quantity, 4 DI switching value channels are divided from top to bottom
Hand/auto state of other access device, operating status, malfunction, external interlocking, variable frequency starting order, frequency feedback with
Current feedback；1 DO switching value channel and 1 AO analog quantity are all connected with frequency conversion and open order, substation standard configuration RS485 communication interface,
By the RS485 interface A of two core twisted-pair shielded wires and Intelligent wireless terminal the connection of B terminal, constituting has wireless transmission function
Intelligent substation；Wireless terminal is by being wirelessly connected central station wireless terminal, and central station wireless terminal passes through RS485 communication interface
Connect central station PLC.
2. a kind of frequency conversion equipment intelligence substation according to claim 1, it is characterised in that: substation sends substation to central station
Hand/auto state, operating status, malfunction, running frequency, running current data, while receiving the frequency conversion from central station
It opens, stop control instruction and speed preset instruction.
3. a kind of frequency conversion equipment intelligence substation according to claim 1, it is characterised in that: the PLC and wireless terminal are equal
Extraneous 220V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820626803.1U CN208384406U (en) | 2018-04-28 | 2018-04-28 | A kind of frequency conversion equipment intelligence substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820626803.1U CN208384406U (en) | 2018-04-28 | 2018-04-28 | A kind of frequency conversion equipment intelligence substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208384406U true CN208384406U (en) | 2019-01-15 |
Family
ID=64973225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820626803.1U Active CN208384406U (en) | 2018-04-28 | 2018-04-28 | A kind of frequency conversion equipment intelligence substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208384406U (en) |
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2018
- 2018-04-28 CN CN201820626803.1U patent/CN208384406U/en active Active
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