CN208969653U - A kind of fired power generating unit motor and solenoid valve class device drives level structure - Google Patents

Abstract

A kind of fired power generating unit motor and solenoid valve class device drives level structure, the driving level structure includes engineer station, engineer station is connect with data exchange module by ethernet line, input signal group connects input terminal module by signal wire, input terminal module is connect with input module, output module is connect with output terminal module, and output signal group is passed through output data channel transfer to external equipment by the output channel of output terminal module；On the system bus, data exchange module is connect with control module for input module, control module and output module parallel connection；The utility model device driving stage connection structure is simple; drive control mode multiplicity; pulse command and single control long instruction can switch at any time; pulse width can be set, and had the function of to start enabled condition limitation, stopped enabled condition limitation, starting, protection is protected to stop, judging automatically feedback signal failure, judge automatically unit trip and judge automatically operation failure.

Description

A kind of fired power generating unit motor and solenoid valve class device drives level structure

Technical field

The utility model relates to power plant's control technology fields, and in particular to a kind of fired power generating unit motor and solenoid valve class equipment Drive level structure.

Background technique

A large amount of motor is contained in fired power generating unit production process and solenoid valve class equipment, this kind of equipment pass through pulse signal Or level signal carries out starting and stopping control, have start and stop feedback, in control process without in stop control and Feedback.Such as the horse of the various feed pumps (condensate pump, reverse osmosis feedwater pump, comprehensive water pump etc.) of power plant, various voltage class It reaches and motor (air-introduced machine, primary air fan, seal fan) and various types of solenoid valves etc..To these motors and solenoid valve class The operation control strategy and method of equipment directly determine the generating efficiency of unit, and safe operation to equipment and protection are to Guan Chong It wants.Improperly control strategy and method frequently can lead to generating set shutdown, serious to will cause equipment damage, casualties etc. Serious accident.So the control method of research motor and solenoid valve class equipment is most important, current each power plant is to motor And the control and operation method multiplicity of solenoid valve class equipment, various control methods all can not consider motor and electromagnetism comprehensively The characteristics of valve class equipment, including under the conditions of various starting, stop operation method, debugging and the operating method of monitoring etc., these Control method has potential limitation, and it is impossible to meet the demands of fired power generating unit security control.On this basis, one kind is proposed Fired power generating unit motor and solenoid valve class device drives level structure and method.

Summary of the invention

In order to overcome the above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of fired power generating unit horses Reach and solenoid valve class device drives level structure, device drives grade connection structure is simple, drive control mode multiplicity, pulse command and Single control long instruction can switch at any time, and pulse width can be set, there is the limitation of starting enabled condition, stopping enabled condition limiting, Protection starting, protection stop, judging automatically feedback signal failure, judge automatically unit trip and judge automatically operation failure function Energy.

To achieve the above objectives, the utility model adopts the following technical solution:

A kind of fired power generating unit motor and solenoid valve class device drives level structure, including engineer station A, data exchange module C, Input terminal module D, input module E, control module F, output module G, output terminal module H, input signal group B and output letter Number group I；

It is connected between the engineer station A and data exchange module C by ethernet line, input signal group B passes through signal Line connects input terminal module D, and input terminal module D is connect by 8 bit parallel data lines with input module E, and output module G is logical It crosses 8 bit parallel data lines to connect with output terminal module H, the output channel of output terminal module H passes through output signal group I defeated Data channel is transferred to external equipment out；Input module E, control module F and output module G are connected in parallel on the system bus, System bus is the CAN bus of standard；Data exchange module C is connect with control module F by 8 bit parallel data buses.

The input terminal module D includes the input channel that is mutually isolated of 10 tunnels, have access to 10 tunnels be mutually isolated it is defeated Enter signal, each input channel includes two binding posts, and one is positive terminal, and one is negative terminal；Output terminal Module H includes the independent output channel in 6 tunnels, and each output channel includes two binding posts, and one is positive terminal, and one is Negative terminal.

Input signal group B is inputted comprising 10 railway digital amounts, and digital quantity only has 0 and 1 two kind of value, 10 railway digital amounts input difference For first via input signal B1, the second tunnel input signal B2, successively the tenth tunnel input signal B10；Output signal group I includes 6 tunnels Output signal, this six tunnels output signal are respectively first via output signal I1, the second tunnel output signal I2, and successively the 6th tunnel exports Signal I6, wherein the output data type of first via output signal I1 is that 4 bytes are exported without symbol shaping, and the output of remaining five tunnel is equal For digital output.

First via input signal B1 connection device drives grade MOTOR's opens Auto1 input, the second tunnel input signal B2 automatically Corresponding device drives grade MOTOR's stops Auto2 input automatically, and successively, the corresponding starting of B3 allows Pmt1 to input, and B4 is corresponding to be stopped permitting Perhaps Pmt2 is inputted, and the corresponding protection starting Pro1 input of B5, the corresponding protection of B6 stops Pro2 input, and the corresponding starting feedback Fb1 of B7 is defeated Enter, B8 is corresponding to be stopped feeding back Fb2 input, and B9 is corresponded on the spot or distant place Fb3 input, B10 are corresponding with regard to earth fault Fb4 input；First The state that road output signal I1 corresponds to device drives grade MOTOR is packaged point DS output, and I2 corresponds to enabled instruction Dmd1 and exports, and I3 pairs Halt instruction Dmd2 is answered to export, the corresponding feedback failure FL output of I4, I5 corresponds to tripping fault Trip output, I6 respective operations failure OpFL output.

A kind of fired power generating unit motor and solenoid valve class device drives grade method described above:

Fired power generating unit motor and solenoid valve class device drives grade, symbol use MOTOR, input include: automatically open Auto1, Automatically stop Auto2, starting allow Pmt1, stop allow Pmt2, protection starting Pro1, protection stop Pro2, starting feedback Fb1, Stop feedback Fb2, on the spot or distant place Fb3 and with regard to earth fault Fb4；Output includes: that state is packaged point DS, enabled instruction Dmd1, stops Only instruct Dmd2, feedback failure FL, tripping fault Trip and operating trouble OpFL；Intermediate parameters include: device type and output Command signal mode DType, output order pulse width DmdT, device travel time OverT；

Fired power generating unit motor and the type DType of solenoid valve class equipment are divided into two kinds according to the type of command signal: pulse Instruction class equipment is indicated using DType=0 expression and single control long instruction class equipment using DType=1；

Include following parameter: device drives grade failure inside fired power generating unit motor and solenoid valve class device drives grade, uses Fail is indicated, as Fail=1, indicates that whole equipment driving stage is in malfunction, it is any right that device drives grade refusal executes The operational order of equipment, user must send out reset instruction homing device driving stage failure to normal condition, i.e. Fail=0, ability Equipment is controlled by device drives grade；Startup separator is indicated using OpenFail, as OpenFail=1, indicates that equipment is opening It breaks down during dynamic；Stop failure, indicated using CloseFail, as CloseFail=1, indicates that equipment was stopping It breaks down in journey；Output order pulse width DmdT indicates the width of the pulse command signal when output order is pulse command Degree；Execution cycle dt, indicates the execution cycle of the device drives grade, and device drives grade executes operation according to the time cycle；If Standby listed TagOn, indicates a kind of state of equipment, is not executed by all operations of device drives grade in this state；

It include three timers inside fired power generating unit motor and solenoid valve class device drives grade, instruction issues burst length meter When device PulseTime: indicate the pulse width time after instruction issues, the pulse of setting time issued for realizing pulse command Instruction is set 0 in the specified burst length by width；Operating trouble judges timer OpflTime；Tripping fault judges timer TripTime；Include trigger inside driving stage, for storing and recording the state of equipment, the function of position is protected with equipment state Energy；Respectively startup trigger RS [0], stopping trigger RS [1], startup separator judge that trigger RS [3] and stopping failure sentencing Disconnected trigger RS [4]；Startup trigger RS [0], RS [0]=1 indicate that equipment enabled instruction has been sent from, and are carrying out starting behaviour Make；Stop trigger RS [1], RS [1]=1 indicates that equipment halt instruction issues, and is carrying out and stops operation；Stop breakdown judge Trigger RS [4]；The set after equipment halt instruction sending, for realizing the judgement for stopping failure；Startup separator judgement triggering Device RS [3], after equipment enabled instruction sending, for realizing the judgement of startup separator；

Engineer station A operates the device drives grade by controlling two modules of configuration and monitored picture, by controlling configuration Equipment debugging operation and online command operation are executed, online command operation is executed by monitored picture；Wherein, equipment debugging operates Including starting, stopping, reset, listed and listed excision operation；Online order includes reset instruction Reset, enabled instruction Open With halt instruction Close；Reset instruction Reset indicates that configuration or the reset of monitored picture sending are controlled by engineer station to be referred to It enables, Reset=1, reset instruction is effective, and Reset=0 reset instruction is invalid；Enabled instruction Open indicates to control by engineer station The enabled instruction that configuration processed or monitored picture issue, Open=1, enabled instruction is effective, and Open=0 enabled instruction is invalid；Stop Only instruction Close indicates the halt instruction for controlling configuration by engineer station or monitored picture issues, and Close=1 stops referring to It enables effectively, Close=0 halt instruction is invalid；

Engineer station A executes equipment debugging operation or online command operation, these operations are sent out by data exchange module C Control module F is given, device drives grade executes the operation of setting, each execution cycle in control module F according to the period of execution Control module F reads in input signal group B, executes motor and solenoid valve class device drives grade method, result data are written to output Signal group I；Input signal group B is transferred to input module E by each execution cycle input terminal module D, and input module E will be inputted Signal group B is sent to control module F by CAN bus, and output signal is transferred to output terminal module H by output module G, output Output signal is output to output signal group I by terminal module H；

Motor and solenoid valve class device drives grade execute calculating according to the execution cycle dt of setting, and each execution cycle is successively Reset is executed in sequence, stopping, starting, pulse command timing, is stopped breakdown judge, startup separator judgement and is packaged point meter It calculates；Each step first has to carry out condition judgement when being executed, when the condition that this step executes meets, just executes this step Otherwise operation is directly entered next step execution；The stopping of motor and solenoid valve class equipment is prior to starting, so first processing stops Only, then processing starting；The judgement for feeding back failure FL, when starting feedback Fb1 and stopping feedback Fb2 is simultaneously 1, FL=1 is no Then FL=0；Each execution cycle, motor and solenoid valve class device drives grade execute as follows:

Step 1, it resets

Reseting stage first determines whether device drives grade failure, and when driving stage is there are failure, and reset instruction Reset is sent out Out, the reset operation of device drives grade is executed, otherwise, does not execute reset operation；When reset instruction is effective, i.e. Reset=1, and And device drives grade failure, i.e. Fail=1, operating process are as follows:

(1) reset instruction is reset, keeps reset instruction invalid, i.e. Reset=0；

(2) tripping fault Trip output is reset to 0, i.e. Trip=0；

(3) operating trouble OpFL output is reset to 0, OpFL=0；

(4) startup trigger RS [0] is set to 0, RS [0]=0；

(5) trigger RS [1] will be stopped and is set to 0, RS [1]=0；

(6) startup separator is judged that trigger RS [3] is set to 0, RS [3]=0；

(7) breakdown judge trigger RS [4] will be stopped and is set to 0, RS [4]=0；

(8) startup separator and stopping failure reset are 0, i.e. OpenFail=0, CloseFail=0；

(9) device drives grade failure reset is 0, i.e. Fail=0；

(10) instruction issues burst length timer and is set to 0, for instruction to be set to 0 after specific pulse width, PulseTime=0；

(11) judge timer reset for 0, OpflTime=0 operating trouble；

(12) judge timer reset for 0, TripTime=0 tripping fault；

Step 2, stop

It first determines whether equipment is listed, as the not listed i.e. TagOn=0 of equipment, and meets following condition (a) and item One of part (b):

(a) protection halt instruction is effective, i.e., protection halt instruction Pro2 becomes 1 from 0,

(b) device drives grade fault-free, that is, Fail=0, and enabled instruction i.e. Pro1=0 in vain is protected, stopping allows to have Effect is Pmt2=1, and under conditions of not sending out and stopping trigger instruction i.e. RS [1]=0, automatic stop instruction issues i.e. Auto2=1 Or the halt instruction ordered online issues i.e. Close=1, the operating process stopped into equipment performs the following operations:

(1) enabled instruction is invalid, and setting enabled instruction output Dmd1 is 0 i.e. Dmd1=0；

(2) halt instruction is effective, and setting halt instruction output Dmd2 is 1 i.e. Dmd2=1；

(3) stop trigger being set to 1 i.e. RS [1]=1, indicate that equipment is carrying out stopping；

(4) startup trigger is set to 0 i.e. RS [0]=1；

(5) it is PulseTime=0 that instruction, which issues burst length timer and resets,；

(6) operating trouble judges that timer resets i.e. OpflTime=0；

(7) tripping fault judges that timer resets i.e. TripTime=0；

Step 3, start

It first determines whether equipment is listed, as the not listed i.e. TagOn=0 of equipment, and meets following condition (a) and item One of part (b):

(a) protection enabled instruction is effective, i.e., protection starting Pro1 becomes 1 from 0；

(b) device drives grade fault-free, that is, Fail=0, and the invalid Pro2=0 of halt instruction is protected, starting allows effective That is Pmt1=1, and the invalid Auto2=0 of automatic stop instruction, and in the condition for not sending out startup trigger instruction i.e. RS [0]=0 Under, instruction is opened automatically and issues the i.e. Auto1=1 or enabled instruction the ordered online i.e. Open=1 of sending, is started into equipment Operating process performs the following operations:

(1) enabled instruction is effective, sets enabled instruction output Dmd1 and is set to 1 i.e. Dmd1=1；

(2) halt instruction is invalid, and setting halt instruction output Dmd2 is 0 i.e. Dmd2=0；

(3) startup trigger is set to 1 i.e. RS [0]=1, indicates that equipment is carrying out starting；

(4) stop trigger and be set to 0 i.e. RS [1]=0；

(5) stop breakdown judge trigger RS [4] and be set to 0 i.e. RS [4]=0；

(6) it is PulseTime=0 that instruction, which issues burst length timer and resets,；

(7) operating trouble judges that timer resets i.e. OpflTime=0；

(8) tripping fault judges that timer resets i.e. TripTime=0；

Step 4, pulse command timing

When judging DType=0, indicates that equipment is pulse command class equipment, need to be implemented pulse command timing, otherwise when setting When for being long instruction class equipment, this step is not executed；

Then judge whether halt instruction Dmd2 is effective, i.e. Dmd2=1, when halt instruction is effective, halt instruction is defeated Out 1, start timing, after having arrived the DmdT time, halt instruction is invalid, and output is set to 0, i.e. Dmd2=0；Each cycles per instruction issues Burst length timer PulseTime executes accumulation operations, accumulating operation period dt, i.e. PulseTime=PulseTime+dt； After the completion of accumulation operations execute, judges whether PulseTime is greater than output order pulse width DmdT, work as PulseTime > DmdT When, the burst length arrives, and halt instruction Dmd2 is set to 0, i.e. Dmd2=0, and instruction is issued burst length timer and is set to 0, i.e., PulseTime=0；

Secondly judge whether enabled instruction Dmd1 is effective, i.e. Dmd1=1, when enabled instruction is effective, enabled instruction is defeated Out 1, then start timing, after having arrived the DmdT time, enabled instruction is invalid, and output is set to 0, i.e. Dmd1=0；Each cycles per instruction hair Burst length timer PulseTime executes accumulation operations, accumulating operation period dt, i.e. PulseTime=PulseTime+ out dt；Accumulation operations execute after the completion of, judge whether PulseTime is greater than output order pulse width DmdT, work as PulseTime > When DmdT, the burst length is arrived, and enabled instruction Dmd1 is set to 0, i.e. Dmd1=0, and instruction is issued burst length timer and is set to 0, i.e. PulseTime=0；

Step 5, stop breakdown judge

Stop the operating trouble or tripping fault that failure includes equipment, when operating trouble or tripping fault times occurs in equipment When a kind of what failure or when two kinds of failures occur simultaneously, indicates that equipment is in and stop failure；Stop failure be operating trouble and Tripping fault executes or operation；Stop breakdown judge executing in the following order:

1 has been exported when stopping trigger RS [1], execution has been stopped operation, starts timing；When without stopping feeding back Fb2, and nothing Tripping fault Trip, and when without operating trouble OpFL, operating trouble judges that timer OpflTime executes accumulation operations, cumulative to set The execution cycle dt, i.e. OpflTime=OpflTime+dt of standby driving stage；When operating trouble judges that timer is greater than device travel Time OverT and stop feeding back Fb2 being 0, then sends out operating trouble OpFL output, i.e. OpFL=1, while operating trouble being judged Timer OpflTime is reset, i.e. OpflTime=0；

When stopping feedback Fb2 is 1, indicates that equipment stopping terminates, operating trouble OpFL is set 0, indicates no operating trouble, Equipment successfully stops, while operating trouble is judged that timer OpflTime is reset, i.e. OpflTime=0；

Each execution cycle, tripping fault judge that timer TripTime executes accumulation operations, accumulative device driving stage Execution cycle dt, i.e. TripTime=TripTime+dt, then perform the following operations:

If TripTime is greater than device travel time OverT and stops being fed back to 0 and without operating trouble, tripping is sent out Tripping fault Trip is set to 1, i.e. Trip=1 by failure output, and tripping fault Trip is otherwise set to 0；

Finally calculate and stop failure, stop failure=tripping fault or operating trouble, i.e. CloseFail=OpFL | | Trip, | | indicate logic or operation；

Step 6, startup separator judges

First, it is determined that startup trigger RS [0], when RS [0] has exported 1, then start timing, operating trouble judges timing Device and tripping fault judge that timer starts to execute periodic accumulation operation, i.e. OpflTime=OpflTime+dt；TripTime= TripTime+dt；

Secondly, being fed back to 0 when operating trouble judges that timer is greater than the device travel time and starts, then operation event is sent out Barrier, is set to 1 for operating trouble OpFL, and operating trouble is judged that timer is set to 1, and operating trouble OpFL is otherwise set to 0, will Operating trouble judges that timing time is set to 0；If tripping fault judges that timer is greater than the device travel time and starts feedback It is 0 and without operating trouble, then sends out tripping fault output, tripping fault Trip is set to 1, tripping fault Trip is otherwise set to 0；

Finally, calculate startup separator, startup separator=tripping fault or operating trouble, i.e. OpenFail=Trip | | OpFL, wherein | | indicate logic or operation；

Step 7, it is packaged calculating a little

It is packaged point DS, the output valve for being packaged point DS is calculated with method in accordance with the following steps, wherein < < indicates bitwise shift left operation, Second operand indicates the digit moved to left；

(1) the 0th to the 4th meaning according to position sequence be followed successively by protection stop Pro2, protection starting Pro1, it is automatic in Between stop Auto3, stop Auto2 automatically and open Auto1 automatically, formula is as follows:

DS=DS+Pro2+ (Pro1 < < 1)+(Auto3 < < 2)+(Auto2 < < 3)+(Auto1 < < 4)；

(2) the 5th to the 7th meanings are followed successively by middle stop instruction Dmd3, halt instruction Dmd2 and starting according to position sequence and refer to Dmd1 is enabled, formula is as follows:

DS=DS+ (Dmd3 < < 5)+(Dmd2 < < 6)+(Dmd1 < < 7)；

(3) the 8th to the 10th meanings are followed successively by remote behaviour Din [9] Fb3 of permission according to position sequence, stop allowing Din [4] Pmt2 and starting allow Din [3] Pmt1, and formula is as follows:

DS=DS+ (Fb3 < < 8)+((Pmt2&&！Fail&&！Pro1)<<9)+((Pmt1&&！Fail&&！Pro2)<<10)；

(4) the 11st, the 13rd to the 16th meaning according to position sequence be followed successively by listed TagOn, stop trigger RS [1], startup trigger RS [0], stopping feedback Fb2 and starting feedback Fb1, the 12nd is reserved place；Formula is as follows:

DS=DS+ (TagOn < < 11)+(RS [1] < < 13)+(RS [0] < < 14)+(Fb2 < < 15)+(Fb1 < < 16)；

(5) the 17th to the 22nd meaning is followed successively by according to position sequence stops failure CloseFail, startup separator OpenFail, failure FL, operating trouble OpFL are fed back, with regard to earth fault Fb4 and tripping fault Trip, formula is as follows:

DS=DS+ (CloseFail < < 17)+(OpenFail < < 18)+(FL < < 19)+(OpFL < < 20)+(Fb4 < < 21)+ (Trip<<22)；

So far, the calculating of motor and solenoid valve class device drives grade is fully completed.

Compared to the prior art the utility model, has the advantages that

1, motor and solenoid valve class device drives level work mode are more, can be according to the driving stage of control process choice equipment Working method, while supporting control signal type to be the equipment of pulse command and single control long instruction, and online modification is supported to set The type of standby signal.

2, motor and solenoid valve class device drives grade realize the dynamic setting of pulse width, can according to actual needs into Row debugging and dynamic change command pulse width.

2, the driving stage method of motor and solenoid valve class equipment has memory function, and each run can all judge the fortune of equipment Row state provides guarantee for the safe operation and protection of equipment.

3, the driving of motor and solenoid valve class equipment is vdiverse in function, has the limitation of starting enabled condition, stops allowing item Part limitation, the protection starting not limited by enabled condition, the protection not limited by enabled condition stop, judging automatically feedback signal Failure judges automatically unit trip, judges automatically the functions such as operation failure.

4, the driving stage of motor and solenoid valve class equipment stops prior to starting, so first processing stops, then processing is opened It is dynamic, and joined protection in stopping and start-up course and start and stop enabled condition judgement, protect starting and protect stopping Condition judgement, and protect enabled instruction and halt instruction priority to be higher than routine and start and stop instruction.

Detailed description of the invention

Fig. 1 is a kind of fired power generating unit motor and solenoid valve class device drives level structure figure；.

Fig. 2 is a kind of fired power generating unit motor and solenoid valve class device drives grade logical model figure.

Fig. 3 fired power generating unit motor and solenoid valve class device drives grade application schematic diagram.

Specific embodiment

Below in conjunction with the application example in attached drawing and engineering, the utility model is described in further detail.

As shown in Figure 1, a kind of fired power generating unit motor of the utility model and solenoid valve class device drives level structure, including engineering Teacher station A, data exchange module C, input terminal module D, input module E, control module F, output module G, output terminal module H, input signal group B and output signal group I；It is connected between the engineer station A and data exchange module C by ethernet line, Input signal group B connects input terminal module D by signal wire, and input terminal module D passes through 8 bit parallel data lines and input mould Block E connection, output module G are connect by 8 bit parallel data lines with output terminal module H, the output channel of output terminal module H Output signal group I is passed through into output data channel transfer to external equipment；Input module E, control module F and output module G are simultaneously On the system bus, system bus is the CAN bus of standard for row connection；Data exchange module C and control module F passes through 8 simultaneously The connection of row data/address bus.

The input signal group B is inputted comprising 10 railway digital amounts, and digital quantity only has 0 and 1 two kind of value, the input of 10 railway digital amounts Respectively first via input signal B1, the second tunnel input signal B2, successively the tenth tunnel input signal B10；Output signal group I includes 6 tunnel output signals, this six tunnels output signal are respectively first via output signal I1, the second tunnel output signal I2, successively the 6th tunnel Output signal I6, wherein the output data type of first via output signal I1 is that 4 bytes are exported without symbol shaping, remaining five road is defeated It is out digital output.

As shown in Fig. 2, first via input signal B1 connection device drives grade MOTOR's opens Auto1 input, the second tunnel automatically The Auto2 that stops automatically that input signal B2 corresponds to device drives grade MOTOR is inputted, and successively, the corresponding starting of B3 allows Pmt1 to input, B4 Corresponding to stop that Pmt2 is allowed to input, the corresponding protection starting Pro1 input of B5, the corresponding protection of B6 stops Pro2 input, the corresponding starting of B7 It feeds back Fb1 to input, B8 is corresponding to stop feedback Fb2 input, and B9 is corresponded on the spot or distant place Fb3 input, B10 are corresponding with regard to earth fault Fb4 Input；The state that first via output signal I1 corresponds to device drives grade MOTOR is packaged point DS output, and I2 corresponds to enabled instruction Dmd1 It exporting, I3 corresponds to halt instruction Dmd2 output, the corresponding feedback failure FL output of I4, and I5 corresponds to tripping fault Trip and exports, and I6 pairs Operating trouble OpFL is answered to export.

If Fig. 3 is fired power generating unit prosperity and a kind of application schematic diagram of solenoid valve class device drives grade, fire is given in figure The starting of 2# first-stage reverse osmosis variable frequency pump in power plant's water system, method for controlling stopping.Six tunnel input signal connection relationships, 2# mono- Auto1,2# first-stage reverse osmosis variable frequency pump that the reverse osmosis variable frequency pump of grade starts Sig-1 connection driving stage automatically are automatically stopped Sig-2 Connect the Auto2 of driving stage, fresh water pump tripping stops reverse osmosis variable frequency pump Sig-3 connection Pro2,2# the first-stage reverse osmosis variable frequency pump of 2# Fb2,2# level-one for running Fb1,2# first-stage reverse osmosis variable frequency pump closing Sig-5 connection driving stage of Sig-4 connection driving stage are anti- Permeate the Fb3 of variable frequency pump distant place Sig-6 connection driving stage, 2 tunnel output signal connection relationships, 2# first-stage reverse osmosis frequency conversion pump startup Instruct the Dmd2 of Dmd1,2# first-stage reverse osmosis variable frequency pump halt instruction Sig-8 connection driving stage of Sig-7 connection driving stage；It should Control method includes automatic start-up course, is automatically stopped, stopping and a distant place is protected to control on the spot.When 2# first-stage reverse osmosis variable frequency pump Automatic starting Sig-1 signal is effective, and to be automatically stopped Sig-2 invalid for 2# first-stage reverse osmosis variable frequency pump, and fresh water pump tripping stops The reverse osmosis variable frequency pump of 2# is invalid (unprotect stopping), then exports 2# first-stage reverse osmosis variable frequency pump enabled instruction；When 2# level-one reverse osmosis Saturating variable frequency pump starts Sig-1 invalidating signal automatically, and to be automatically stopped Sig-2 effective for 2# first-stage reverse osmosis variable frequency pump, and clear water Pump tripping stops the reverse osmosis variable frequency pump of 2# in vain (unprotect stopping), then exports 2# first-stage reverse osmosis variable frequency pump halt instruction；Work as 2# It is effective that first-stage reverse osmosis variable frequency pump starts Sig-6 signal automatically, and equipment work is on the spot, then 2# first-stage reverse osmosis frequency conversion pump startup Instruction and the halt instruction of 2# first-stage reverse osmosis variable frequency pump will not export, and control priority on the spot and open higher than a device drives grade distant place Dynamic and halt instruction, can be completed by the motor and solenoid valve class device drives grade to the long-range of 2# first-stage reverse osmosis variable frequency pump Control, realize 2# first-stage reverse osmosis variable frequency pump limited by enabled condition start and stop, do not limited by enabled condition Protection starting and protection stop, judging automatically feedback signal failure, judge automatically unit trip, judging automatically the function such as operation failure Can, quickly complete very much the operation control and error protection to 2# first-stage reverse osmosis variable frequency pump.

Claims (4)

1. a kind of fired power generating unit motor and solenoid valve class device drives level structure, it is characterised in that: including engineer station (A), number According to Switching Module (C), input terminal module (D), input module (E), control module (F), output module (G), output end submodule Block (H), input signal group (B) and output signal group (I)；

It is connect between the engineer station (A) and data exchange module (C) by ethernet line, input signal group (B) passes through letter Number line connection input terminal module (D), input terminal module (D) is connect by 8 bit parallel data lines with input module (E), defeated Module (G) is connect by 8 bit parallel data lines with output terminal module (H) out, and the output channel of output terminal module (H) will be defeated Signal group (I) passes through output data channel transfer to external equipment out；Input module (E), control module (F) and output module (G) on the system bus, system bus is the CAN bus of standard to parallel connection；Data exchange module (C) and control module (F) It is connected by 8 bit parallel data buses.

2. a kind of fired power generating unit motor according to claim 1 and solenoid valve class device drives level structure, it is characterised in that: The input terminal module (D) includes the input channel that 10 tunnels are mutually isolated, and has access to the input signal that 10 tunnels are mutually isolated, Each input channel includes two binding posts, and one is positive terminal, and one is negative terminal；Output terminal module (H) Comprising the independent output channel in 6 tunnels, each output channel includes two binding posts, and one is positive terminal, and one is cathode Binding post.

3. a kind of fired power generating unit motor according to claim 1 and solenoid valve class device drives level structure, it is characterised in that: Input signal group (B) is inputted comprising 10 railway digital amounts, and digital quantity only has 0 and 1 two kind of value, and the input of 10 railway digital amounts is respectively first Road input signal B1, the second tunnel input signal B2, successively the tenth tunnel input signal B10；Output signal group (I) is exported comprising 6 tunnels Signal, this six tunnels output signal are respectively first via output signal I1, the second tunnel output signal I2, successively the 6th tunnel output signal I6, wherein the output data type of first via output signal I1 is that 4 bytes are exported without symbol shaping, and the output of remaining five tunnel is number The output of word amount.

4. a kind of fired power generating unit motor according to claim 1 and solenoid valve class device drives level structure, it is characterised in that: First via input signal B1 connection device drives grade MOTOR's opens Auto1 input automatically, and the second tunnel input signal B2 corresponds to equipment Driving stage MOTOR's stops Auto2 input automatically, and successively, the corresponding starting of B3 allows Pmt1 to input, and B4 is corresponding to be stopped allowing Pmt2 defeated Enter, the corresponding protection starting Pro1 input of B5, B6 corresponds to protection and stops Pro2 input, and B7 is corresponding to start feedback Fb1 input, and B8 is corresponding Stop feedback Fb2 input, B9 is corresponded on the spot or distant place Fb3 is inputted, and B10 is corresponding to be inputted with regard to earth fault Fb4；First via output signal The state that I1 corresponds to device drives grade MOTOR is packaged point DS output, and I2 corresponds to enabled instruction Dmd1 output, and I3 corresponds to halt instruction Dmd2 output, the corresponding feedback failure FL output of I4, I5 correspond to tripping fault Trip output, I6 respective operations failure OpFL output.