CN108039847A - A kind of multifunctional variable-frequency circuit - Google Patents
A kind of multifunctional variable-frequency circuit Download PDFInfo
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- CN108039847A CN108039847A CN201711346475.6A CN201711346475A CN108039847A CN 108039847 A CN108039847 A CN 108039847A CN 201711346475 A CN201711346475 A CN 201711346475A CN 108039847 A CN108039847 A CN 108039847A
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Abstract
The present invention relates to a kind of multifunctional variable-frequency circuit, contactor KM1, contactor KM2, contactor KM3 and contactor KM4, operation module and the PLC control modules being connected including frequency converter, with frequency converter, operation module and PLC control modules are connected with contactor KM1, contactor KM2, contactor KM3 and contactor KM4, for operating and controlling motor M1 and motor M2 switchover operations, operation and the operation of control motor frequency conversion and power frequency operation pattern manual switching, remotely realize automatic PLC and touch-screen control, and control the push-botton operation of long-range remote control case.The multifunctional variable-frequency circuit can control two motor switchover operations, can realize motor frequency conversion operation and power frequency operation pattern manual switching, can remotely realize automatic PLC and touch-screen control, and realize long-range remote control case push-botton operation, can switch mutually between control mode.
Description
Technical field
The present invention relates to a kind of frequency changer circuit, and in particular to a kind of multifunctional variable-frequency circuit.
Background technology
At present, frequency converter control cabinet is widely used in the pump such as metallurgy, chemical industry, oil, water supply, mine, building materials, electromechanics trade
The various Medium-voltage motor equipment such as class, wind turbine, air compressor, rolling mill, injection molding machine, belt conveyer.Frequency conversion tank is using closing
Cabinet type structure, degree of protection are generally IP20, IP21, IP30 etc., using sectional materials cage, surface coating plastic-spraying, and easy and cabinet
Installation, upper end can configure busbar, and leading to cabinet appearance outside frequency converter panel can directly operate, and can set as needed on the spot and far
Process control or PC/PLC Communication Controls, have very intuitively various display functions.Frequency converter is the special-purpose assorted product of frequency conversion tank,
Its frequency control function and important technological parameters depend on the configuration state of the interior specifications and models for setting frequency converter and periphery.
Frequency-conversion control cabinet is mainly the electrical control cabinet for using frequency converter and developing, and being needed according to operating mode can be in frequency conversion tank
Installation exchange input reactance device, output reactance device, direct current reactor and electromagnetic interface filter, brake unit, braking resistor, contactor,
Intermediate relay, electrothermal relay, programmable controller (PLC), programmable operations terminal (GOT), kilowatt-hour meter, radiator fan etc.,
Various control button and indicator light are set on frequency conversion cabinet panel according to system condition, such as rotates forward, invert, crawl rotates forward, crawl
Reversion, manual/auto, emergent stopping, frequency conversion/power frequency, PLC controls, touch-screen etc..
With low pressure, Small And Medium Capacity Variable Frequency Adjustable Speed Technology of Induction Motor reach its maturity and popularization and application, frequency control
Cabinet has largely poured into domestic electric product market.Variation control and mode of operation of the market to frequency-conversion control cabinet there has also been more
High requirement and expectation.
The content of the invention
The purpose of the present invention is for above-mentioned present situation, there is provided a kind of variation control and easy to operate multifunctional variable-frequency electricity
Road.
The technical solution adopted by the present invention：A kind of multifunctional variable-frequency circuit, including frequency converter, be connected with the frequency converter
Contactor KM1, contactor KM2, contactor KM3 and contactor KM4, operation module and PLC control modules, the contactor KM1
One end of main contacts and one end of main contacts of the contactor KM3 be respectively connected to U, V, W tri- of the frequency converter and draw
Foot, one end of the main contacts of the contactor KM2 are then connected to the change after connecting the other end of the main contacts of contactor KM1
Tri- pins of U, V, W of frequency device, one end of the main contacts of the contactor KM4 connect the another of the main contacts of the contactor KM3
Tri- pins of U, V, W of the frequency converter, the other end and the first motor of the main contacts of the contactor KM1 are then connected to behind one end
M1 connections, the other end of the main contacts of the contactor KM3 are connected with the second motor M2, the main contacts of the contactor KM2
The other end is connected with soft of the power frequency from the first motor M1, and the other end of the main contacts of the contactor KM4 is with coming from
Soft of the power frequency connection of the second motor M2, R pins, S pins and the T pins of the frequency converter respectively with current transformer
Ta, Tb are connected with Tc, then are connected with three-phase breaker QF1, are finally connected with AC power, the operation module and PLC controls
Module is connected with the contactor KM1, contactor KM2, contactor KM3 and contactor KM4, for operating and controlling motor M1
With motor M2 switchover operations, operation and the operation of control motor frequency conversion and power frequency operation pattern manual switching, remotely realize automatic PLC
And touch-screen control, and control the push-botton operation of long-range remote control case.
The present invention effect be：The multifunctional variable-frequency circuit can control two motor switchover operations, can realize motor frequency conversion
Operation and power frequency operation pattern manual switching, can remotely realize automatic PLC and touch-screen control, and realize long-range remote control case button
Operate, can switch mutually between control mode.
Brief description of the drawings
Fig. 1 is a kind of system module figure of multifunctional variable-frequency circuit provided by the invention.
Fig. 2 is a kind of major loop figure of multifunctional variable-frequency circuit provided by the invention.
Fig. 3 and Fig. 4 is the secondary control loop figure of Fig. 2.
The PLC that Fig. 5 is Fig. 2 automatically controls connection figure.
Embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Referring to Fig. 1, be a kind of multifunctional variable-frequency circuit provided by the invention, including frequency converter, it is connected with the frequency converter
Contactor KM1, contactor KM2, contactor KM3 and contactor KM4, operation module and PLC control modules.
Please refer to Fig. 2 to Fig. 5, contactor KM1, contactor KM2, the main contacts of contactor KM3 and contactor KM4
It is connected with the frequency converter.Specifically, one end of the main contacts of one end of the main contacts of contactor KM1 and contactor KM3 point
Tri- pins of U, V, W of the frequency converter are not connected directly to, and one end of the main contacts of contactor KM2 connects contactor KM1
Main contacts the other end after be then connected to tri- pins of U, V, W of the frequency converter, one end of the main contacts of contactor KM4 connects
Connect tri- pins of U, V, W that the frequency converter is then connected to after the other end of the main contacts of contactor KM3.Contactor KM1's
The other end of main contacts is connected with the first motor M1, and the other end of the main contacts of contactor KM3 is connected with the second motor M2, should
The other end of the main contacts of contactor KM2 is connected with soft of the power frequency from the first motor M1, the main contacts of contactor KM4
The other end is connected with soft of the power frequency from the second motor M2.The R pins of the frequency converter, S pins and T pins are mutual with electric current respectively
Sensor Ta, Tb are connected with Tc, then are connected with three-phase breaker QF1, are finally inputted and are connected with AC380V.
The operation module includes two knob SA1, three knob SA2, three knob SA3, two knob SA4, two rotations
Button SA5, two knob SA6, two knob SA7, relay KA1, relay KA2, relay KA3, relay KA4, relay
KA10, relay KA11, relay KA12, relay KA13, relay KA14, relay KA15, relay KA16, relay
KA17, relay KA18, relay KA19, relay KA20, scram button SB1, scram button SB2, switch K1, switch K2,
Switch K3, switch K4.
Two knob SA1 are adjusting knob manually and automatically.Three knobs SA2 and SA3 are economize on electricity, zero electricity and alternating current
Adjusting knob.The adjusting knob that two knob SA4 are motor M1 and motor M2.Two knob SA5 are local and remote adjusting
Knob, two knob SA6 and two knob SA7 are economize on electricity and alternating current adjusting knob on remote control case.
In main circuit circuit, D14 the and D15 pins of the 23 contact portion frequency converters of two knob SA1, two knobs
COM the and DI1 pins of the 24 contact portion frequency converters of SA1；Touch 31 contacts of three knob SA2 and the 31 of three knob SA3
Point is all connected with the D16 pins of the frequency converter, and 32 contacts of three knob SA2 and 32 contacts of three knob SA3 connect two respectively
31 contacts and 11 contacts of position knob SA4；32 contacts and 12 contacts of two knob SA4 are all connected with the COM and DI1 of the frequency converter
Pin.
In secondary control loop, 13 contacts, 23 contacts, 33 contacts and 43 contacts of two knob SA5 connect with firewire L
Connect, 14 contacts of two knob SA5 33 contacts with two knob SA1 and 43 contact portions respectively, the 44 of two knob SA1 touches
Point and 24 contact portions of two knob SA5,11 contacts and 31 contacts of two knob SA1 are tactile with the 34 of two knob SA5
Point connection, 32 contacts of two knob SA1 and 44 contact portions of two knob SA5,13 contacts of two knob SA4,23 are touched
34 contact portions of point, 33 contacts and 43 contacts with two knob SA1,23 contacts and 44 contacts of three knob SA2 with
24 contact portions of two knob SA4,23 contacts of three knob SA3 and 34 contact portions of two knob SA4, three knobs
43 contacts of SA3 and 33 contact portions of two knob SA4,11 contacts of two knob SA5 are connected with P-24V, two knobs
12 contacts of SA5 and 13 contact portions of two knob SA1,14 contacts of two knob SA1 and 32 contacts of two knob SA5
13 contacts and 23 contacts of connection, 13 contacts and 23 contacts of two knob SA6 and two knob SA7 with two knobs
32 contact portions of SA5,31 contacts of two knob SA5 are connected with P-24V.
Relay KA1, relay KA2, relay KA4, relay KA10, relay KA11, relay KA12, relay
KA13, relay KA14, relay KA15 are normally opened relay, and relay KA3 is normally closed relay.Each relay is respectively provided with
Coil portion and switch portion.
6 contacts of the switch portion of relay KA1 and 8 contacts of the switch portion of relay KA2 are touched with the 14 of two knob SA4
Point connection, 10 contacts of the switch portion of relay KA1 and 9 contact portions of the switch portion of relay KA10, relay KA2's opens
12 contacts in pass portion and 9 contact portions of the switch portion of relay KA11.7 contacts of the switch portion of relay KA1 and relay
7 contacts of the switch portion of KA2 and 44 contact portions of two knob SA4,11 contacts of the switch portion of relay KA1 and relay
9 contact portions of the switch portion of KA12,11 contacts of the switch portion of relay KA2 and 9 contacts of the switch portion of relay KA13
Connection.5 contacts of the switch portion of relay KA10, KA11, KA12, KA13 are both connected to together, and with two knob SA1's
44 contacts and 24 contact portions of two knob SA5.6 contacts of the switch portion of relay KA4 and 12 contacts of two knob SA1
Connection, 5 contacts of 5 contacts of the switch portion of relay KA14 and the switch portion of relay KA15 with two knob SA1 32
Contact portion, 13 contacts of scram button SB1 and 12 contact portions of two knob SA1, the 10 of the switch portion of relay KA4 touches
11 contact portions of 14 contacts of point and scram button SB1 with scram button SB2,12 contacts of scram button SB1, relay
The A1 ends of 9 contacts of the switch portion of KA14 and 9 contacts of the switch portion of relay KA15 with the coil portion of relay KA4 connect
Connect, the A2 ends of the coil portion of relay KA4 are connected with zero curve.5 contacts of the switch portion of relay KA4 and the DI1 of the frequency converter
Pin connects, and 9 contacts of the switch portion of relay KA4 are connected with the COM pins of the frequency converter.
2 contacts of the switch portion of relay KA3 and 24 contact portions of three knob SA2, the switch portion of relay KA3
10 contacts and 61 contact portions of the switch portion of contactor KM2,62 contacts of the switch portion of contactor KM2 are with contactor KM3's
61 contact portions of switch portion, 62 contacts of the switch portion of contactor KM3 are connected with the A1 ends of the coil portion of contactor KM1, connect
The A2 ends of the coil portion of tentaculum KM1 are connected with zero curve.Touched with the 43 of three knob SA2 61 contacts of the switch portion of contactor KM1
Point connection, 62 contacts of the switch portion of contactor KM1 are connected with the A1 ends of the coil portion of contactor KM2, the coil of contactor KM2
The A2 ends in portion are connected with zero curve.
3 contacts of the switch portion of relay KA3 and 24 contact portions of three knob SA3, the switch portion of relay KA3
11 contacts and 71 contact portions of the switch portion of contactor KM4,72 contacts of the switch portion of contactor KM4 are with contactor KM1's
71 contact portions of switch portion, 72 contacts of the switch portion of contactor KM1 are connected with the A1 ends of the coil portion of contactor KM3, connect
The A2 ends of the coil portion of tentaculum KM3 are connected with zero curve.Touched with the 44 of three knob SA3 71 contacts of the switch portion of contactor KM3
Point connection, 72 contacts of the switch portion of contactor KM3 are connected with the A1 ends of the coil portion of contactor KM4, the coil of contactor KM4
The A2 ends in portion are connected with zero curve.
TZ1 pins and TZ2 pins on the frequency converter are connected with firewire, TB1 pins and TB2 pins point on the frequency converter
Zero curve Lian Jie not be connected jointly again after the coil portion of relay KA1 and KA2.
Contactor KM1, contactor KM2, contactor KM3,53 contacts of switch portion of contactor KM4 are connected with firewire,
And 54 contacts of the switch portion of contactor KM1, contactor KM2, contactor KM3, contactor KM4 connect signal lamp HL1, letter respectively
After signal lamp HL2, signal lamp HL3, signal lamp HL4, then it is connected with zero curve.In this present embodiment, signal lamp HL1 and signal lamp HL3
For green, signal lamp HL2 and signal lamp HL4 are yellow.
It also is provided with signal lamp HY1, signal lamp HY2, signal lamp HY3, signal lamp HY4 on remote control case, and contactor KM1, connects
Tentaculum KM2, contactor KM3,54 contacts of switch portion of contactor KM4 connect signal lamp HY1, signal lamp HY2, signal lamp respectively
After HY3, signal lamp HY4, then it is connected with zero curve.
5 contacts of the switch portion of relay KA3 are connected with firewire, and 9 contact portion signals of the switch portion of relay KA3
After lamp HL5, then it is connected with zero curve.In this present embodiment, signal lamp HL5 is red.
5 contacts of the switch portion of relay KA2 are connected with firewire, and 9 contact portion relays of the switch portion of relay KA2
After the coil portion of device KA3, then it is connected with zero curve.
PLC control modules chip in order to control, model DVP32ES2-R (16DI/16D0).
X0 pins, X1 pins, X2 pins and the X3 pins of the PLC control modules respectively with contactor KM1, contactor KM2,
84 contact portions of the switch portion of contactor KM3 and contactor KM4, contactor KM1, contactor KM2, contactor KM3 and contact
83 contacts of the switch portion of device KM4 are connected with P-24V.The X4 pins and X5 pins of the PLC control modules are respectively with switching K1
With 14 contact portions of switch K2, switch K1 and switch 32 contact portions of 13 contacts of K2 with two knob SA5.The PLC
The X6 pins and X7 pins of control module 14 contact portions with two knob SA6 and two knob SA7 respectively.The PLC is controlled
The X10 pins of module and 10 contact portions of the switch portion of relay KA2,6 contacts of the switch portion of relay KA2 and P-24V
Connection.The X11 pins and X12 pins of the PLC control modules connect with 24 contacts of two knob SA6 and two knob SA7 respectively
Connect.14 contact portions of the X13 pins of the PLC control modules and two knob SA1.The X14 pins of the PLC control modules and
X17 pins respectively with switch K3 and switch K4 14 contact portions, switch K3 and switch K4 13 contacts with two knob SA5
32 contact portions.
A Switching Power Supply is equipped between firewire and zero curve, which is by the voltage conversion between firewire and zero curve
The high level output end of 24V and the low level output end of 0V.CO pins, C1 pins, C2 pins and the C3 of the PLC control modules draw
Foot is connected with the high level output end of the Switching Power Supply.VO pins, V1 pins, V2 pins, the V3 of the PLC control modules draw
Foot, V4 pins, V5 pins, Y10 pins, Y11 pins, Y12 pins, Y13 pins and Y16 pins respectively with relay KA10, after
Electric appliance KA11, relay KA12, relay KA13, relay KA14, relay KA15, relay KA16, relay KA17, after
After electric appliance KA18, relay KA19, the coil portion of relay KA20 connect, the low level output of the Switching Power Supply is then connected to
End.
When needing to automatically control, two knob SA5 are got to local, two knob SA1 are beaten by close circuit breaker QF1
To automatic, motor M1 is selected on the touchscreen, then selects " motor M1 converting operations ", and contactor KM1 is attracted at this time, and selection becomes
Frequency device is run, and the frequency that motor M1 gives according to PLC is run；, can when user needs motor M1 being switched to motor M2 operations
To operate as follows：1st, motor M2 is selected on the touchscreen, then selects " motor M2 power frequency operations ", at this time contactor
KM4 is attracted, while the soft starting system operation of the corresponding originals of motor M2, motor M2 power frequency operations.2nd, " motor is selected on the touchscreen
M1 " and then selection " motor M1 power frequency operations ", the output of frequency converter stopping at this time, contactor KM1 are disconnected, and contactor KM2 is attracted, together
When the soft starting system operation of the corresponding original of motor M1, motor M1 power frequency operations.3rd, " motor M2 ", selection are " electric for selection on the touchscreen
Machine M2 converting operations ", at this time contactor KM4 disconnections, contactor KM3 are attracted, and select frequency converter operation, and motor M2 gives according to PLC
Fixed frequency operation；4th, motor M1 is selected on the touchscreen, then selects " stopping of motor M1 power frequencies ", motor M1 is out of service.
When the frequency converter failure, power frequency contactor is attracted when which exports fault-signal, while by signal to soft
Starter, makes the motor of normal operation be automatically converted to power frequency operation.
When needing control manually, two knob SA5 are got to local, two knob SA1 are beaten by close circuit breaker QF1
To manual, two knob SA4 getting into motor M1, tri- knob SA2 of motor M1 are got into economize on electricity, contactor KM1 is attracted at this time,
Frequency converter operation scram button SB1, motor M1 is pressed to run according to the frequency of Keyboard Setting；When user needs to cut motor M1
When changing to motor M2 operations, it can operate as follows：1st, two knob SA4 are got into motor M2, by tri- rotations of motor M2
Button SA3 gets to alternating current, and contactor KM4 is attracted at this time, while the soft starting system operation of the corresponding originals of motor M2, motor M2 power frequencies fortune
OK.2nd, two knob SA4 are got into motor M1, tri- knob SA2 of motor M1 is got into alternating current, contactor KM1 is broken as at this time
Off-state, contactor KM2 are attracted, while the soft starting system operation of the corresponding originals of motor M1, motor M1 power frequency operations.3rd, by two
Knob SA4 gets to motor M2, and tri- knob SA3 of motor M2 are got to economize on electricity, and contactor KM4 is off-state at this time, contactor
KM3 is attracted, and runs scram button SB1 by low-converter, motor M2 is run according to the frequency of Keyboard Setting；4th, by two knobs
SA4 gets to motor M1, tri- knob SA2 of motor M1 is got to city's electrical zero, motor M1 is out of service.
When frequency converter failure, power frequency contactor is attracted when frequency converter exports fault-signal, while by signal to soft start
Device, makes the motor of normal operation be automatically converted to power frequency operation.
When needing remote control, close circuit breaker QF1, two knob SA5 is got to remotely, by two on remote control case
Knob SA6 gets to economize on electricity, and PLC output signals are attracted contactor KM1, then press low-converter operation button K1, motor M1 according to
The frequency operation that PLC gives；When user needs motor M1 being switched to motor M2 operations, can operate as follows：1、
Two knob SA7 on remote control case are got into alternating current, PLC output signals are attracted contactor KM4, while the corresponding originals of motor M2 are soft
Starting system is run, motor M2 power frequency operations.2nd, two knob SA6 on remote control case are got into alternating current, contactor KM1 is disconnected, contact
Device KM2 is attracted, while the soft starting system operation of the corresponding originals of motor M1, motor M1 power frequency operations.3rd, two knobs on case will far be controlled
SA7 gets to economize on electricity, and PLC disconnects contactor KM4, and contactor KM3 is attracted, press low-converter operation button K2, motor M2 according to
The frequency operation that PLC gives；4th, motor M1 power frequency stop button K3 are pressed, motor M1 is out of service, presses motor M2 power frequencies and stops
Only button K4, motor M2 are out of service.
When frequency converter failure, power frequency contactor is attracted when frequency converter exports fault-signal, while by signal to soft start
Device, makes the motor of normal operation be automatically converted to power frequency operation.
In this way, the multifunctional variable-frequency circuit can control two motor switchover operations, motor frequency conversion operation and power frequency can be realized
Operational mode manual switching, can remotely realize automatic PLC and touch-screen control, and realize long-range remote control case push-botton operation, control
It can switch mutually between mode.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of multifunctional variable-frequency circuit, it is characterised in that the contactor KM1 that is connected including frequency converter, with the frequency converter, connect
Tentaculum KM2, contactor KM3 and contactor KM4, operation module and PLC control modules, the one of the main contacts of the contactor KM1
One end of the main contacts of end and the contactor KM3 is respectively connected to tri- pins of U, V, W of the frequency converter, the contactor
One end of the main contacts of KM2 connects U, V, W tri- that the frequency converter is then connected to after the other end of the main contacts of contactor KM1
A pin, one end of the main contacts of the contactor KM4 are then connected to after connecting the other end of the main contacts of the contactor KM3
Tri- pins of U, V, W of the frequency converter, the other end of the main contacts of the contactor KM1 is connected with the first motor M1, described to connect
The other end of the main contacts of tentaculum KM3 is connected with the second motor M2, and the other end of the main contacts of the contactor KM2 is with coming from institute
Soft connection of power frequency of the first motor M1 is stated, the other end of the main contacts of the contactor KM4 is with coming from the second motor M2
The connection of soft of power frequency, R pins, S pins and the T pins of the frequency converter be connected with current transformer Ta, Tb and Tc respectively, then
It is connected with three-phase breaker QF1, is finally connected with AC power, the operation module and PLC control modules is contacted with described
Device KM1, contactor KM2, contactor KM3 are connected with contactor KM4, for operating and controlling motor M1 and motor M2 to switch fortune
OK, motor frequency conversion operation and power frequency operation pattern manual switching are operated and controlled, remotely realizes automatic PLC and touch-screen control,
And control the push-botton operation of long-range remote control case.
2. multifunctional variable-frequency circuit as claimed in claim 1, it is characterised in that：The operation module include two knob SA1,
Three knob SA2, three knob SA3, two knob SA4, two knob SA5, two knob SA6, two knob SA7, relays
Device KA1, relay KA2, relay KA3, relay KA4, relay KA10, relay KA11, relay KA12, relay
KA13, relay KA14, relay KA15, relay KA16, relay KA17, relay KA18, relay KA19, relay
KA20, scram button SB1, scram button SB2, switch K1, switch K2, switch K3, switch K4, two knob SA1 are hand
Dynamic and automatic adjusting knob, three knobs SA2 and SA3 are the adjusting knob of economize on electricity, zero electricity and alternating current, two rotations
Button SA4 is the adjusting knob of motor M1 and motor M2, and two knob SA5 are local and remote adjusting knob, described two
Position knob SA6 and two knob SA7 is economize on electricity and alternating current adjusting knob on remote control case, the relay KA1, relay
KA2, relay KA4, relay KA10, relay KA11, relay KA12, relay KA13, relay KA14, relay
KA15 is normally opened relay, and the relay KA3 is normally closed relay.
3. multifunctional variable-frequency circuit as claimed in claim 2, it is characterised in that：In main circuit circuit, two knobs
D14 the and D15 pins of frequency converter described in 23 contact portions of SA1；Frequency converter described in 24 contact portions of two knob SA1
1 pins of COM and D I；31 contacts of three knob SA2 and 31 contacts of three knob SA3 are all connected with the change
The D16 pins of frequency device；32 contacts of three knob SA2 and 32 contacts of three knob SA3 connect described two respectively
31 contacts and 11 contacts of position knob SA4；32 contacts and 12 contacts of two knob SA4 are all connected with the frequency converter
1 pins of COM and D I, in secondary control loop, 13 contacts, 23 contacts, 33 contacts and 43 contacts of two knob SA5
It is connected with firewire, 14 contacts of two knob SA5 connect with 33 contacts of two knob SA1 and 43 contacts respectively
Connect, 44 contacts of two knob SA1 and 24 contact portions of two knob SA5, the 11 of two knob SA1 touches
34 contact portions of point and 31 contacts with two knob SA5,32 contacts of two knob SA1 are with two knob SA5's
44 contact portions, 13 contacts, 23 contacts, 33 contacts and 43 contacts of two knob SA4 are with two knob SA1's
34 contact portions, 24 contact portions of 23 contacts and 44 contacts of three knob SA2 with two knob SA4, institute
State 23 contacts of three knob SA3 and 34 contact portions of two knob SA4,43 contacts of three knob SA3 with
33 contact portions of two knob SA4,11 contacts of two knob SA5 are connected with P-24V, two knobs
12 contacts of SA5 and 13 contact portions of two knob SA1,14 contacts of two knob SA1 and described two rotations
32 contact portions of button SA5,13 contacts and 23 contacts of two knob SA6 and 13 contacts of two knob SA7
With 32 contact portions of 23 contacts with two knob SA5,31 contacts of two knob SA5 are connected with P-24V.
4. multifunctional variable-frequency circuit as claimed in claim 3, it is characterised in that：6 contacts of the switch portion of the relay KA1
8 contacts and 14 contact portions of two knob SA4 with the switch portion of the relay KA2, the relay KA1's opens
10 contacts in pass portion and 9 contact portions of the switch portion of the relay KA10,12 contacts of the switch portion of the relay KA2
With 9 contact portions of the switch portion of the relay KA11,7 contacts of the switch portion of the relay KA1 and the relay
7 contacts of the switch portion of KA2 and 44 contact portions of two knob SA4,11 contacts of the switch portion of the relay KA1
With 9 contact portions of the switch portion of the relay KA12,11 contacts and the relay of the switch portion of the relay KA2
9 contact portions of the switch portion of KA13,5 contacts of the switch portion of described relay KA10, KA11, KA12, KA13 are both connected to
Together, and 44 contacts with two knob SA1 and 24 contact portions of two knob SA5, the relay KA4
Switch portion 6 contacts and two knob SA1 12 contact portions, 5 contacts of the switch portion of the relay KA14 and
32 contact portions of 5 contacts of the switch portion of the relay KA15 with two knob SA1, the scram button SB1
13 contacts and two knob SA1 12 contact portions, 10 contacts of the switch portion of the relay KA4 and the emergency stop
11 contact portions of 14 contacts of button SB1 with the scram button SB2,12 contacts of the scram button SB1, it is described after
Coil of 9 contacts of the switch portion of 9 contacts of the switch portion of electric appliance KA14 and the relay KA15 with the relay KA4
The A1 ends connection in portion, the A2 ends of the coil portion of the relay KA4 are connected with zero curve, and the 5 of the switch portion of the relay KA4 touches
Point is connected with 1 pins of DI of the frequency converter, and 9 contacts of the switch portion of the relay KA4 and the COM of the frequency converter draw
Foot connects, 2 contacts of the switch portion of the relay KA3 and 24 contact portions of three knob SA2, the relay
10 contacts of the switch portion of KA3 and 61 contact portions of the switch portion of the contactor KM2, the switch portion of the contactor KM2
62 contacts and the contactor KM3 switch portion 61 contact portions, 62 contacts of the switch portion of the contactor KM3 and institute
The A1 ends connection of the coil portion of contactor KM1 is stated, the A2 ends of the coil portion of the contactor KM1 are connected with zero curve, the contact
61 contacts of the switch portion of device KM1 and 43 contact portions of three knob SA2, the 62 of the switch portion of the contactor KM1
Contact is connected with the A1 ends of the coil portion of the contactor KM2, and the A2 ends of the coil portion of the contactor KM2 are connected with zero curve,
3 contacts of the switch portion of the relay KA3 and 24 contact portions of three knob SA3, the switch of the relay KA3
71 contact portions of the switch portion of 11 contacts in portion and the contactor KM4,72 contacts of the switch portion of the contactor KM4 with
71 contact portions of the switch portion of the contactor KM1,72 contacts and the contactor of the switch portion of the contactor KM1
The A1 ends connection of the coil portion of KM3, the A2 ends of the coil portion of the contactor KM3 are connected with zero curve, and the contactor KM3's opens
44 contact portions of 71 contacts in pass portion and three knob SA3,72 contacts of the switch portion of the contactor KM3 with it is described
The A1 ends connection of the coil portion of contactor KM4, the A2 ends of the coil portion of the contactor KM4 are connected with zero curve, the frequency converter
On TZ1 pins and TZ2 pins be connected with firewire, the TB1 pins and TB2 pins on the frequency converter connect the relay respectively
Connect zero curve, the contactor KM1, contactor KM2, contactor KM3, contactor after the coil portion of device KA1 and KA2 jointly again
53 contacts of the switch portion of KM4 are connected with firewire, and the contactor KM1, contactor KM2, contactor KM3, contactor KM4
Switch portion 54 contacts connect signal lamp HL1, signal lamp HL2, signal lamp HL3, signal lamp HL4 respectively after, then with zero curve connect
Connect, 5 contacts of the switch portion of the relay KA2 are connected with firewire, and 9 contact portions of the switch portion of the relay KA2
After the coil portion of the relay KA3, then it is connected with zero curve.
5. multifunctional variable-frequency circuit as claimed in claim 1, it is characterised in that：X0 pins, the X1 of the PLC control modules draw
Foot, X2 pins and X3 pins respectively with the switch portion of the contactor KM1, contactor KM2, contactor KM3 and contactor KM4
84 contact portions, the contactor KM1, contactor KM2, contactor KM3 and contactor KM4 switch portion 83 contacts and P-
24V connections, the X4 pins and X5 pins of the PLC control modules with the switch K1 and switch 14 contact portions of K2 respectively,
32 contact portions of 13 contacts of the switch K1 and switch K2 with two knob SA5, the X6 of the PLC control modules
Pin and X7 pins 14 contact portions with two knob SA6 and two knob SA7 respectively, the PLC control modules
X10 pins and 10 contact portions of the switch portion of the relay KA2,6 contacts of the switch portion of the relay KA2 and P-
24V connections, the X11 pins and X12 pins of the PLC control modules are respectively with two knob SA6's and two knob SA7
24 contact portions, 14 contact portions of the X13 pins of the PLC control modules and two knob SA1, the PLC controls
The X14 pins and X17 pins of module respectively with the switch K3 and switch K4 14 contact portions, the switch K3 and switch K4
32 contact portions of 13 contacts with two knob SA5.
6. multifunctional variable-frequency circuit as claimed in claim 5, it is characterised in that：Also be provided with the remote control case signal lamp HY1,
Signal lamp HY2, signal lamp HY3, signal lamp HY4, and the contactor KM1, contactor KM2, contactor KM3, contactor KM4
After 54 contacts of switch portion connect the signal lamp HY1, signal lamp HY2, signal lamp HY3, signal lamp HY4 respectively, then with zero curve
Connection.
7. multifunctional variable-frequency circuit as claimed in claim 6, it is characterised in that：5 contacts of the switch portion of the relay KA3
It is connected with firewire, and after signal lamp HL5 described in 9 contact portions of the switch portion of the relay KA3, then be connected with zero curve.
8. multifunctional variable-frequency circuit as claimed in claim 7, it is characterised in that：The signal lamp HL1 and signal lamp HL3 are green
Color, the signal lamp HL2 and signal lamp HL4 are yellow, and the signal lamp HL5 is red.
9. multifunctional variable-frequency circuit as claimed in claim 8, it is characterised in that：PLC control modules chip in order to control, type
Number it is DVP32ES2-R (16DI/16D0).
10. multifunctional variable-frequency circuit as claimed in claim 9, it is characterised in that：A switch electricity is equipped between firewire and zero curve
Voltage conversion between firewire and zero curve is the high level output end of 24V and the low level output of 0V by source, the Switching Power Supply
End, the high level output of the CO pins, C1 pins, C2 pins and C3 pins of the PLC control modules with the Switching Power Supply
End connection, VO pins, V1 pins, V2 pins, V3 pins, V4 pins, V5 pins, Y10 pins, the Y11 of the PLC control modules
Pin, Y12 pins, Y13 pins and Y16 pins respectively with the relay KA10, relay KA11, relay KA12, relay
Device KA13, relay KA14, relay KA15, relay KA16, relay KA17, relay KA18, relay KA19, relay
After the coil portion connection of device KA20, the low level output end of the Switching Power Supply is then connected to.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346475.6A CN108039847B (en) | 2017-12-13 | 2017-12-13 | Multifunctional frequency conversion circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711346475.6A CN108039847B (en) | 2017-12-13 | 2017-12-13 | Multifunctional frequency conversion circuit |
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| CN108039847A true CN108039847A (en) | 2018-05-15 |
| CN108039847B CN108039847B (en) | 2023-12-22 |
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| CN108039847B (en) | 2023-12-22 |
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