多泵供水卡 (MD32WS)用户手册
汇川变频器常规问题解答(060801)
1、MD300系列功率范围是多少？MD320系列功率范围是多少？MD300A系列功率范围是多少？MD300系列功率范围是：单相0.4~2.2Kw，三相0.75-30Kw。
MD320系列功率范围是：单相0.4~2.2Kw ，三相0.75~355KW。
（280G、355P）MD300A系列功率范围是：0.4、0.75Kw2、单相220V变频器的输出电压范围是多少？F1组电机额定频率为50Hz，变频器输出25Hz时，变频器的输出电压（加在电机上的输入电压）是多少？单相220V变频器的输出电压范围是：0~220V。
F1组电机额定频率为50Hz，变频器输出25Hz时，变频器的输出电压（加在电机上的输入电压）是：110V。
3、MD300S1.5和MD300T1.5的额定输出电流分别是多少？为什么差1.732倍？MD300S1.5 额定输出电流是：7.0AMD300T1.5的额定输出电流是：3.8A因MD300T1.5额定输出电压比MD300S1.5额定输出电压大1.732倍，故MD300T1.5额定输出电流比MD300S1.5额定输出电流小1.732倍。
4、客户紧急需要三相220V 15Kw的变频器，汇川三相220V系列非标是在三相380V系列哪个功率的变频器的基础上改制的，为什么？汇川三相220V系列非标是在三相380V系列30kw功率的变频器的基础上改制的，因为三相220V，15kw系列非标的额定输出电流为52A, 三相380V系列30kw功率的变频器的额定输出电流也为60A,功率模块的电流范围是相当的。
5、变频器选用V/F控制时，确定电机磁通值的二个变频器相关参数是哪个？电机欠磁通运行和过磁通运行分别有哪些危害？变频器选用V/F控制时，确定电机磁通值的二个变频器相关参数是：F1组参数中F1-02额定电压、F1-04额定频率。
电机欠磁通运行：电机输出力矩不够。
电机过磁通运行：励磁电流发生严重畸变，电机发热厉害，因为电机铁损加大。
1、注水岗注水泵启泵操作卡(关键操作卡)
11、检查泵压表、管压表、进口压力表、平衡压力表阀门应打开
12、泵房打开泵进口阀门，打开泵进出口放空阀门，空气放净后关闭； 检查污油盒内无杂物，下泄管畅通，联轴器周围无杂物，护罩牢 固螺丝无松动（风险提示 3）
13、打开泵出口阀门、电动阀
14、与变电所联系空试低油压，变电所给合闸信号后，按启动按钮， 副岗在泵房投低油压保护开关，跳闸后再试低水压保护，副岗在 泵房试低水压保护开关，跳闸后空试完毕
15、打开回流阀门
16、主副岗配合把所有程序重新检查一遍
1、向变电所发出启泵请求，得到合闸信号后，按启动按钮
2、待电流降至空载运行电流或泵压上升到额定压力后，平稳打开泵 出口阀门，调至正常压力后，关闭回流阀门
3、检查电机运行情况和轴瓦温度、泵盘根漏失情况
操作 4、检查仪表指示情况
5、悬挂“运行”牌
6、填写运行记录、班报表
3、发生机械伤害时组织人员进行维修，如阀门在高压端，应立即关闭干线
阀或在站外关闭干线控制阀门及井排连通阀；发生高压水伤人紧急停泵阀门及井排连通阀；
人员受伤，立即将伤者脱离危险源紧急救治，报 120 将伤者送往医院救
治，同时汇报队值班干部及矿调度（风险提示 3）
5、主岗检查电机、泵轴瓦油位在观察孔 1/2～2/3，油质清澈
检查 和 准备
6、副岗检查冷却水系统，检查清水罐水位 7、副岗打开电机、泵冷却水进出口阀门，润滑油冷却水进出口阀门 8、副岗启动冷却水泵，控制压力小于 0.2MPa，进口温度不超过 30℃
9、副岗检查大罐水位在规定高度（风险提示 2）
10、注水泵盘泵 2～3 圈，联轴器和转子无卡阻和杂音，护罩无磨擦
程序与步骤
执行 情况
1、主岗向所在采油区调度请示启泵，得到许可后进行准备
一体化排水泵站设备使用说明书(三台泵)
短信智能一体化排水泵站（型号：FXBZ-PS-Ⅲ）说明书贵州飞翔环保工程有限公司一、概述随着经济和人口的增长，对大自然的污染愈来愈受到人类的重视，我国大部地区乡镇都在建设和规划排污管网，由于我省地处西南山区，山高地势不平整，污水排水管网依靠自流受限影响区域较大，因此，我公司在总结国内外一体化排污泵站的的运行经验的基础上，结合我公司自己的科研成果和工程实践，设计出一种可地埋设置的成套污水提升装置，并采取短信智能控制，无需人工长期值守，其目的主要是使乡镇级偏远地区不具备专业技术团队及管理人员的地区，使用本一体化排水泵站可大大节省人力和便于实现泵站的自动化管理。
该设备主要用于居住乡镇、小区(含别墅小区)、医院、和各类公共建筑的污水排污管网，经该设计紧凑，只需连接进出水管，且全套设备均埋设于地下，亦故称"地埋式一体化排水泵站"。
本公司生产的一体化排水泵站，采取国际或国内优质的水泵和短信控制系统，具有技术性能稳定可靠，投资省，占地少，维护方便等优点。
二、产品特点1、埋设于地表以下，设备上面的地表可作为绿化或其他用地，不需要建房及采暖、保温。
2、产品安装、接入官网方便快捷。
3、一体化泵站采用短信智能控制系统，无需人工值守，减少人工管理成本。
4、设备设置有实时报警装置，让泵站管理单位随时随地掌握泵站运行情况。
管理单位也可用手机主动查询泵站设备情况。
5、整个设备处理系统配有全自动电气控制系统和设备故障报警系统，运行安全可靠，平时一般不需要专人管理，只需适时地对设备进行维护和保养。
6、泵站设置有自动切换功能，当1#水泵损坏后，系统会自动切换成2#水泵工作；当2#水泵损坏后，系统也会切换到1#水泵工作，当1#、2#水泵都损坏后，水位达到警戒水位，系统会自动启动备用水泵（3#排水泵）进行排水。
7、泵站还具备曾流量提水功能，在未启用备用泵的情况下，泵站内水泵1#、2#水泵交替运行，进行排水，当一台水泵排水能力不能达到设计要求时，可通过面板操作和短信控制操作，启用备用水泵，实现两台水泵同时抽水的功能，当达到警戒水位后，泵站自动启用3台水泵，进行最大流量抽水。
多功能水泵说明书
Pumping of clear unfilled liquids in housing,agricultural and industrial sectors.•Water supply - Boosting •Watering - Irrigation •High pressure washing •Heating - Air conditioning •Water treatment.Incorporation into modular booster sets dedicated to:•Hotel •Hospitals.Pumped fluids:- Range 304:clear, non-aggressive liquids drinking water, water with glycol)- Range 316L:aggressive liquids (demine-ralized water, sea water, chlorinate water).Flow rates up to:34 m 3/h Head up to:96 m CL Max discharge pressure:10 bar Max suction pressure: 6 bar Temperature range:- 15°to +110°C*Max ambient temperature:+ 50°C ND of ports:1” à 2”* depending on mechanical seal and gasketsN.T. N°141-8/ENG. - Ed.4/05-05HORIZONTAL MULTI-STAGESTAINLESS STEEL PUMPSwith integrated EVS*50/60 Hz2 ranges: stainless steel 304 and 316L* Electronic Variation Speed23596Qm 3/hHmAPPLICATIONS• MUL Ti-HE 403 2G• EVS * for MUL Ti-HE 2G•Reduction of mechanical and electrical constraints compared toa standard pump:- No more successive starts and stops - flexible use, reduction of hammering and knocking- limiting of starting current- adjustment to installation by precise adjustment of speed and pressure.•Automatic diagnosis to facilitate maintenance.•Reduction in sound levels by adapting pump speed to requirements.•Easy installation and use thanks to simple implementation and operation.•SAVINGS- Optimization of complete product pump + motor + converter guaranteeing energy savings.- une seule pompe couvre une gamme complète de pompes standard.- One contact, one supplier for a complete automatic system.•Smaller booster size thanksto integration of frequency converter in pump.•Hydraulic part- All stainless steel.- Centrifugal multistage with 2 to 6 stages. - Horizontal axis- Suction / Discharge orifices tapped.- Axial suction, radial discharge upwards.- Tightness at shaft passage by standardized mechanical seal.• MotorDry motor, 2 pole equipped with VEV. Winding3- phase:380 to 440 V ±6% Frequency:50 and 60 Hz Insulation class:F (155°C) Protection index:IP 54Electronic speed variation is applied tothe asynchronous motors of the MUL TI-HEcentrifugal pumps.The goal is to regulate the speed of the ACmotor by converting voltageand frequency of the mains inputs from 380to 440 V ±6% at 50 or 60 Hz into a threephase voltage system with variable frequencyand amplitude.The frequency converter then makes itpossible to control the speed of the motor.This simultaneous action on the frequencyand voltage is by means of two mainelements:- a diode rectifier-a pulse width modulatinginverter (MLI).The rectifier is a diode bridge. The ACvoltage conducted through the diode bridgeis converted into a rectified DC voltage.At this stage, to refine the quality of the DCvoltage at the rectifier output, a set ofcapacitors and coils eliminates any residualripple output from the rectifier.In this way, we obtain a smooth DC voltagecalled the “DC bus”.With this development, the inverterdefinitively adjusts the voltage at the outputof the variator to optimize the magnetizingof the motor. The set voltage at the inverterinput is converted again into a variablevoltage by acting as voltage pulses for avariable period of time via the transistors.This principle is referred to as pulse widthmodulation. These transistors are controlledby the micro-controller which activates ordeactivates them so as to vary the frequencyat the variator output.The transistors (IGBT: Insulated Gate BipolarTransistor) therefore operate by switching andact as switches to convert the DC voltageinto a variable voltage.The IGBT switching activation frequencycreates variable voltage and frequencymagnitudes.The frequency must be high toeliminate the noise produced bymagnetization (frequency inaudible to thehuman ear: 8 to 16 kHz).Pump code Nominal flow in m 3/h (to 50 hz/2 pole )Number of stages Stainless S = 304 X = 316LE =O-rings : EPDM (WRAS/KTW)V =O-rings : VITON M13 = 1-phase Mode 1-3M2 = 1-phase Mode 2T = 3-phase 2 = 2 Pole2nd Generation inverterMode 1 / manual modeThe pump is installed in the same way as a MUL TI-H standard pump but offers the possibility of manually adjusting its speed and therefore working through a range of flow.Pressure curves according to the needs of the installation.From the required Q/H point,the operating frequency can bedetermined by means of a curve plotter (see the following pages).MUL Ti-HE 402- SE - T/2- 2GRange Stainless 304Stainless 316L2/4/8/162/4/8Main partsMaterialsnon-aggressive aggressiveliquids liquids Pump casing Stainless 304Stainless 316L Impellers Stainless 304Stainless 316L Cells (stage)Stainless 304Stainless 316L Pump shaft Stainless 316L Stainless 316LMechanical seal Si carbide Tg carbide Carbon Carbon O-rings EPDM*Viton**PlugsStainless 316L Stainless 316L* T°110°C — **T°90°CNB: Stainless 304 (Z6CN18-9)or 316 L (Z2CND17-12)recommended materials offering high resistance to corrosion. Clean conveyed liquids with fibers and containing little sand/silica (max concentration 40 g/m 3).Three operating modes can be chosen according to the application and the need. The user selects the operating mode by touch pad.On delivery, the pump is configured in Mode 1.The information is viewed on a display.05-Filling plug06-Drain/priming plug 07-Pipe supports or collar 08-Strainer09-Storage vessel 10-City water networkHA = suction head HR = discharge headMode with pump alone using pressure regulation. The pump is installed with its pressure sensor which can attached either to the pump or on the discharge pipe.The setpoint pressure is adjusted when the pump is installed by means of the touch pad.Operation: when the real pressure measuredon the sensor drops below the set pressure,the pump starts and controls its speed to achieve the set pressure.The pump stops automatically when it detects that flow is zero or that there is a Mode 2 / automatic pump boost system Mode 3/ use of pump on booster The frequency variation is managed by an external control.Starting, stopping and the speed of rotation of the pump are controlled by a 0-10 V or 4-20 mA input signal.KEY01-Foot valve strainer 02-Pump suction valve 03-Pump discharge valve 04-Non-return valve 05-Filling plug06-Drain/priming plug 07-Pipe supports or collar 08-Strainer09-Storage vessel 10-City water network11- Switch/isolator with fuses 12-Concrete block 14-Pressure sensor kit 15-Vessel16- Vessel isolating valve HA = suction head HR = discharge headMode 1Mode 2 Mode 3OKAdjusting of thefrequency from 30% to 100%OKAdjustingof the setpoint(0 to 100% of thesensor’s rating)Adjustingof ALTi-Esetpoint4-20mA or 0-10V sensor (pressure, temperature, flow rate, etc)• Display- Speed shown on the screen• On/Off-Remote-With button• Display- Displaying of pressure for pressureregulation- Displaying of % for other types ofregulation• On/Off- Remote- With button• Pressure regulation- Adjusting of the setpoint using the buttonsOR- Adjusting of the setpoint via external signal• Other types of regulation- Possibility of adjusting the PID corrector- Choosing of the regulation type(flow rate, temperature, etc)• Display- Displaying of the rotation speed• On/Off- Remote- With buttonThe following functions are integrated into the pump, depending on the modes:- Lit display- Remote on-off or with touch pad - Automatic zero flow detection - Water run-out detection- Reducing of the nominal speed according to the liquid pumped.- Protection from:- short-circuits - circuit overloads - over/under-voltages - excessive temperature - microbreaks - missing phase- Maintenance self-troubleshooting via error code on the display.Maintenance troubleshootingAnalysis is based on parameters such as over/undervoltage, sensor power supply failure or cut cable, short circuit, overload, etc. The pump then indicates any faults through the red LED and an error code shown on the display.• 1.1 to 4 kW unit DisplayControl connectorsSwitches for locking the settings and the setpoint SBM unavailability indicator and SSM fault indicator relayPhase 1 / 2 / 3 + ground power terminal blockL1L2L3PEFault typeInverter behaviour SignalingWaiting time Waiting time Max number of State before stopbefore restartdefaults over 24hFault code LED red Variator Temperature 3 s 5 mn*6E30 E31Flashing Short-circuit Immediate 5 s 6E23Flashing LineOvervoltage ≤5 s 5 s*6E05Flashing Undervoltage ≤5 s 5 s*6E04Flashing Missing phase ≤5 s 5 s*6E06 (E04)Flashing Motor Temperature 3 s 5 mn*6E20 (E26)Flashing Short-circuit Immediate 5 mn*6E23Flashing PumpPump blocked 3 s No 1E10Flashing restart Dry operation < 60 s 1 mn 6E00Flashing OverloadVariable 1 mn 6E01Flashing ExternalIncorrect pump code Immediate No 1E99Flashing restart Cable cut in 5 sNo 1E42Flashing(only w.sensor restart4/20 mA)* If the fault is eliminated10203040%0,00,20,40,60,81,0kW01020304050607080Ql/min Ql/sHm100501,5210,5An ESV (Electronic Speed Variation) pump is represented by a network of curves showing the intermediate performances covered.With speed variation, the power input is adapted to the H/Q need required, resulting in large energy savings.10203016202428323650Qm /hHm405048126080100700,00,20,40,60,81,036912010203040%01020304050607080Qm /hkWmQl/min Ql/sHm100501,5210,50,40,61,02468101210203040506005101520253035404550kW%mHm0,51,01,52,02,52600Qm /hkWm002040608005101520253035404550550,00,51,01,52,02,5024680204060kWmHm50- 1600 0,00,51,01,52,02,524681001020304050600051015202530354812162024283236Qm /hkWm%N.P .S.HQm 3/h Qm /hQl/min Ql/sHm100020003000400500600105a) Electrical- Three-phase 380 V/ 440 V - 50/60 Hz,tolerance ±6%, 2 pole.b) Assembly- Installation in an easily-reached place on suction or load side- Mounting on block or directly on smooth and horizontal surface- Pump attachment by 2 holes for Ø M8studs.Connection to installation by flexible pipe with reinforcing spiral or rigid pipe.c) Conditioning- Pump supplied in cardboard package without connection accessories.FEATURES•Suction kit •Isolating valves•Anti-vibration sleeves•Bladder or galvanized vessel •Anti-hammering vessel•Check valves (with ogive or flap, with spring if operation in Mode 2•Foot valve strainer•Dry running protection (mode 1)•Control pressure sensor kitACCESSORIESSENSOR KITS : MOUNTING ACCESSORY Sensor Kits Modelorder reference item reference 6 bar MUL Ti-HE 403CAPTPRESS 6b 4048063MUL Ti-HE 160210 barMUL Ti-HE 205CAPTPRESS 10b4048064MUL Ti-HE 406 MUL Ti-HE 80353 bd de la République - Espace Lumière - Bât. 6 - 78403 Chatou Cedex FRANCE Tel: +33 (0)1 30 09 82 39 - Fax: +33 (0)1 30 09 82 34 - 。
MD型泵说明书
MD型泵说明书ZL-S306-090312 Rev.0 P.1/5MD型多级离心式煤水泵安装使用说明书中华人民共和国山东博泵科技股份有限公司1. 概述MD型煤水泵系单吸、多级、分段式离心泵。
主要用于水力采煤和矿山排水，也可用于其它需要高压的场所。
输送介质的最高温度80℃，固体粒径不大于2mm,重量浓度不大于20%。
泵型号意义，以 MD280-60X7为例：MD——多级节段离心式泥浆泵280 ——流量（m3/h）60 ——单级扬程（m）7 ——泵的级数从原动机方向看，泵为顺时针方向旋转。
MD型泵分低压侧(结构图中左侧)和高压侧(结构图中右侧)两部分，两侧液流以外接换向流道连接，泵的级数为奇数时，右侧多一级叶轮。
泵的右侧进水室设有一组平衡套和平衡鼓，以平衡左、右侧进水室的压力。
泵的定子部分主要由前段、中段、导叶、后段、出液段、尾盖和轴承体等零件构成。
吸入口在前段上，呈水平方向。
吐出口在泵中部的出液段上，垂直向上。
泵的转子部件由轴、叶轮、挡套、轴套、中间轴套等零件组成，由两端的滚动轴承支承在轴承体上。
泵的左、右叶轮的流道方向相反，在安装时应予以注意。
口环、轴套和平衡装置等直接承受磨损的零件采用耐磨材料制造，或碳素结构钢表面喷焊耐磨合金。
2．装配、拆卸1）泵装配前，转子部件必须依照转子部件图的各项技术要求，进行小装。
特别注意所规定的各项跳动允差。
2）将密封环分别装在吸入段及中段上。
3）导叶套装在导叶上，然后将导叶装在所有中段上。
4）将装好前轴套和键的轴穿进吸入段，并推入首级叶轮与挡套，装上中段，再推入第二个叶轮。
重复以上步骤，将所有中段及叶轮装完。
5）平衡板、平衡套及出水导叶分别装在吐出段上。
6）用穿杠将吸入段、中段、吐出段紧固在一起。
穿杠螺栓的紧固程度应均匀一致。
7）装上平衡盘及后轴套，将尾盖装到吐出段上，并将填料、填料环、填料压盖顺次装入吸入段和尾盖的填料室。
8）将轴承体分别装到吸入段和尾盖上，并用螺栓紧固。
(完整word版)水泵操作手册
操作手册一、触摸屏操作1、下面界面为提升泵操作界面a:自动运行：点击操作界面:手/自动-转换按钮，同时观察操作界面顶部是否显示自动，：当提升泵切换为自动时，系统会根据生化池是否需进水来自动开启能自动开启的泵进行上水。
水位设置：当水位高于开泵水位时，电脑会自动开启水泵上水，当水位低于最低水位时电脑会停止运作的水泵进入等待状态。
请设置合适的水位，以免影响系统工作浮球开关：当水位低于浮球关泵时，系统会停止工作，浮球开关是超低水位，请设置合适的浮球开关位置。
水泵选择：在自动状态下可以选择开两个泵和开一个泵点击：水泵选择。
检修：在自动状态下，当某一台泵出现故障时，系统会自动开启没故障的泵，检修时请切断电源并把现场转换按钮转到手动，检修完毕后请在任何一个操作界面上点击：复位：按钮，此泵将自动进入后备自动运行状态。
b:手动运行：点击操作界面:手/自动-转换按钮，同时观察操作界面顶部是否显示手动点击：手动/设置-按钮进入以下操作菜单a:在这个菜单里点击相应的按钮，可以启停任何一台设备，并且可以同时启停多台设备，启动时请考虑其他设备和安全性，以免引起设备损坏在上面操作界面点击上一页，返回整体监视界面点击下一页将进入下一菜单在此菜单可设置格栅和压榨机运行时间及停止时间。
并且可以在手动状态可以任意启停设备。
自动操作：手自动操作可以使系统进入自动和手动状态。
在旋流沉沙池界面可以观察细格栅前后液位以及设备运行状态，并且可以观察到巴士流量计瞬时流量和累计流量（流量计误差在5%）手自动操作可以使系统进入自动和手动状态。
手动操作：点击-手自动操作-按钮进入手动状态，点击手动/设置-按钮在此界面可以设置格栅压榨和鼓风砂水等设备的自动运行时运行和停止时间罗茨鼓风机房自动运行：一、当生化池需要鼓风时在界面上方会显示出：需开风机指令点击-手/自动转换按钮-系统将进入自动状态开启风机警戒风压：点击警戒风压可设置管道最高风压值，当管道风压超过设定警戒风压时，放空阀会自动打开，当风压正常时系统会自动关闭放空阀，放空阀要时常检查，以免出现事故轮换使用风机：设置风机切换时间可以按一定的时间轮流运行检修：检修风机时切断电源即可检修不影响系统工作，系统会自动开启备妥的风机设置风机转速：点击手动/设置按钮-设定鼓风机最高转速（最高转速不能超过50hz）手动操作:手动操作具有一定危险性，点击手动/设置-按钮进入下面手动操作界面a:点击相应按钮即可启停任何设备，并且可以同时启停多台设备注意：启动风机时请观察风机阀门-放空阀-生化池进气阀开度，以免损坏设备。
MD-SW使用说明书
1
一、系统参数
智能水泵压力控制器
我司首创压力传感原理水泵控制器，是真正电子式智能全自动压力控制器，
2
三、设置方法
1.设置启动停止压力值 默认值为1.5公斤启动，2.9公斤停止。 （1）短按“开/关”键，进入设置状态。 （2）短按上限键，显示："H2.9"。短按上限值增加0.1KG，长按数值快速增加, 设置完成后，等待2秒钟，数码管显示“888”，自动保存此设置值。 ★上限值设置范围为“下限值~9.9”，循环设置。 （3）短按下限键，显示“L1.5”。短按下限值减小0.1KG，长按数值则连续减小， 设置完成后，等待2秒钟，数码管显示“888”，自动保存此设置值。 ★下限值设置范围为：“缺水保护值~上限值”循环设置。 （4）设置完成后，按“开/关”键进入工作状态。 2.缺水保护值设置方法。 进入设置状态后，短按“缺水”键设置，默认“F0.2”，设置方法同上。 ★ 缺水保护值设置范围“0.1-下限值”之间，可根据实际情况增加或减小，一般 设置范围为：“0.1~0.5”之间。 3.清零操作，误差修正。 进入设置状态后，长按“下限”+“运行”两个键5秒出现“C-L”后，清零成功。 ★ 注意：该操作必须在没有压力的情况下操作。初次安装好以后若未加水压，压 力显示不为0.0，请先做清零操作。 4.停止压力延时设置。 为防止水泵的频繁启动，停止压力延时可设，同时按下“缺水”+“上限”两个 键，出现“n03”（默认延时3秒），通过上下限键修改数据，按开关键保存起效。
4
五、显示代码说明
代码 H2.9 L1.5 F0.2 E-F E-H 意义 表示水泵停止压力是2.9公斤 表示水泵启动压力是1.5公斤 表示缺水保护压力是0.2公斤 缺水保护中 压力超过使用量程或传感器损坏 处理方法 通过上限键修改数值，循环变化 通过下限键修改数值，循环变化 通过缺水键修改数值，循环变化 按开/关复位，或等来水后自动恢复 检查压力源
三向二位弹簧阀门多功能流量控制固定泵驱动说明书
3-Way, 2-Position Spool-Type Solenoid ValvesMulti-Functional Flow Control for Fixed Displacement Pumps3-Way, 2-Position Spool-Type Solenoid ValvesMulti-Functional Flow Control for Fixed Displacement PumpsThree-way, 2-position valves typically feature a three-porteddesign allowing flow paths inseveral different configurations, while only connecting two ports in any single position. The valve consists of a series of tapered cylinders with diameters that get smaller from top to bottom. It fits snuggly into a machined cavity port. A seal separates the two possible pathways, i.e., a supply port where pressure exists only when the valve is actuated and a tank port that acts as thehydraulic fluid reservoir.When work is being performed, a spool-type valve’s cylinder-inside-a-cylinder configuration slides back and forth, enabling the pressurized hydraulic fluid to flow to one or the other of the ports, depending upon the function required.Essentially, these valves allow design engineers to switch (divert) between two functions or to simply dump flow where it is not needed, thereby significantly increasing the types of work fixed displacement pumps can perform. Actuation can be achieved using solenoid coils, manual means, electronics or piloted using hydraulic oil. There are even complex systems that combine two or more actuation methods to optimize performance.Three-way, 2-position valves arefurther differentiated by their position at rest. The “normallyopen” design allows flow to travel from the pressure port when at rest; the “normally closed” design does not. How 3-Way, 2-Position Spool-TypeSolenoid Valves WorkFixed displacement pumps are a cost-effective solution for a variety of construction vehicles, from mini excavators, backhoes and dump trucks to larger hand-held snow blowers, skid-steer loaders and street sweepers. But since the amount of pressurized fluid delivered is driven by a constant speed motor, such pumps can only provide a consistent amount of flow, thereby limiting their functionality to less dynamic applications. Further, they do not allow for a no-flow scenario; when the machine and its motor are running, flow occurs whether or not it is actually needed to perform a specific hydraulic function.For engineers designing simple hydraulic circuits, adding one or more 3-way, 2-position spool-type solenoid valves to fixed displacement pump hydraulic systems can extend their capabilities for a nominal investment. This article will explain how such valves work while exploring some of the multi-functional applications made possible by these cleverly designed yet highly cost-effective valve solutions.Smaller-scale construction equipment using fixed displacement pumps can perform multi-directional functionality when used with 3-way, 2-position valves. These valves overcome the inherent limitations of constant flowby changing the flow path, for example, from up and down movement to lateral or tilt movement, as required bythe specific application. Such solutions are more economical and more compact than the typical alternative of doubling the size of the valve and pump to achieve greater flow.In applications where the circuit designer wants to divert flow from one leg of a circuitto another, several 3-way,2-position valves can be a cost-effective solution, emulatinga traditional directionalspool valve in a customizablemanifold setup. If dumpingis required and the systemdemands more than a singleadditional function, thesevalves can similarly be usedin tandem to meet specificfunctional and real estaterequirements.Three-way, 2-position valvesare also useful for applicationswhere flow is not constantlyrequired. Unlike variable flowpumps, fixed displacementpumps are not able to turnflow off except by stoppingthe motor and thereforeall equipment activity. Aconstruction equipment designteam can use these valves todump the oil back to the pump,constantly circulating thehydraulic fluid until it is againneeded to perform a function.No more deadheading andblowing out a pump becausethe uncompressible fluidhas no place to go and exertscontinual pressure on thesystem. Just flip a switch andthe circulating fluid does itsjob; switch it back, and thefluid recirculates through thesystem until it is again needed.Spool-type solenoid valveswork well in applications wherethe fluid is placed in and out ofa holding pattern as functionscease and then resume.However, for applicationssuch as bucket lifts whereloads need to be sustainedin position for a longer time,poppet-style solenoid valves¹are recommended.1 Poppet-style valves are a topic for sepa-rate discussion but essentially, they aredesigned with a spherical or conical, ratherthan a cylindrical shape, and are thereforecapable of achieving a tighter seal. Suchvalves are the preferred solution for load-holding applications.Typical ApplicationsAll 3-way, 2-position spool-type solenoid valves are not created equal. Here are some of the factors to be considered when comparing manufactured valves.• Flow and pressure requirements vary greatly by application, but from a design perspective, the higher the GPM and the PSI, the more versatile the valve.• From an operational perspective, it is essentialthat pressure closely follows actuation. Similarly, whenthe valve closes the response needs to be immediate. Valves that demonstrate low hysteresis provide predictable performance regardless of the direction of actuation. This characteristic facilitates the programming of functions while ensuring the end user is able to operate the equipment more intuitively.• Valves that integrate easily with a full range of hydraulic system components provide design engineers with the flexibility of modular build-outs, allowing designers to customize a manifold blockin as compact a design as possible. Modular designs economize on space and labor requirements, providing designers with greater flexibility as functional requirements evolve. • Ergonomic valveconfigurations optimizeequipment controllability.Quick actuation and precisealignment enable intuitiveoperator use. Ergonomicallydesigned hydraulic circuits giveOEMs a competitive edge byenabling intuitive operationthat improves safety andefficiency and lowers energyusage and operational costs forequipment users.• Maintenance andreplacement requirementsare another consideration. Thecoil on top of these valves iscontinually pushing or pullingso coil replacement needs to beeasy. The wires and connectorscan also wear due to corrosionor from being over-energizedwith current. Ideally, the valveshould be removable from themanifold with minimal effortand without removing theentire block assembly.• Temperature resistance is acritical performance factor forthe valve’s seal. Nitrile seals witha 250° F temperature thresholdare the industry standard. Coldtemperature resistance shouldalso be considered.Differentiating 3-Way, 2-Position ValvesBy partnering with the world leader in fully integrated hydraulic systems, OEM design engineers benefitfrom envelope-expanding performance thresholds and a depth of real-world experience with a vast range of hydraulic applications.• Ease of Maintenance - The modularity of Parker hydraulic system designs makes component replacementfast and easy. When the coil requires replacement in a Parker 3-way, 2-positionspool-type solenoid valve, all that is required is to remove a single coil nut. Then, without removing the valve from the manifold, the new coil canbe dropped into place before retightening the cartridge valve. • Superior SealPerformance - As partof the Parker Winner’sCircle series of hydrauliccomponents, these valvesfeature seals made from aproprietary compound thatcan sustain both higherand lower temperaturethresholds than the nitrileseal compounds used bymost valve manufacturers.Fluorocarbon seals withhigh-temperature thresholdsof 400°F are also available forequipment used in extremeenvironments.• Nominal Pressure DropDuring Flow - Althoughsome pressure loss duringflow is inevitable with any3-way, 2-position valveconfiguration, pressuredrop with the Parker designis considerably lower incomparison with othermanufactured valves due toa less restrictive flow path.• Exceptional ActuationResponse - Responsivenessat actuation is also superior,with a response time of only 50milliseconds.• Convenient On-LineProcurement - The Parker3-way, 2-position spool-typesolenoid valves are readilyavailable for on-line purchasein sizes -8 and -10. Additionalsizes are also availablethrough the Parker worldwidedistribution network.• Manual Override - Twomanual override functions helpto ensure worker safety.Perhaps most importantly,the Parker global footprintensures predictable availabilityand serviceability, includingdesign support to optimizeefficiency and field-basedtroubleshooting on everycontinent.Additional Valve Selection ConsiderationsJune 2019© 2019 Parker Hannifin Corporation Parker Hannifin CorporationHydraulic Cartridge Systems Division 595 Schelter Rd.Lincolnshire, IL 60069Ph: 847 955 /hcsStephen BruntonAbout ParkerAs the leading globalprovider of fully integrated hydraulic systems andadvanced hydromechanical and electromechanicalsubsystems and components, the Parker Hydraulic Systems Division is ideally positioned to provide the engineering expertise, precisionmanufacturing and reliable distribution network needed by construction equipment OEMs and their customers to meet the challenges of an increasingly competitiveglobal market.。
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1：变频泵
对应的泵采用变频启动，在不满足切换泵条件时，该泵作为整个恒压供水系统的变量调节泵，由变频器控
制运行并根据系统的实际流量，自动调节该泵的转速，以维持系统压力的恒定；当达到切换条件时，如果
还有其它待机的变频泵，将该泵切换到工频运行，启动待机变频泵运行；如果没有待机变频泵，该泵还保
泵1类型 泵2类型 泵3类型 泵4类型 泵5类型 泵6类型 泵7类型 泵1额定电流 泵2额定电流 泵3额定电流 泵4额定电流 泵5额定电流 泵6额定电流 泵7额定电流
三、功能参数简表：
功能参数简表
设定范围
0：无效 1：普通供水模式 2：消防模式 3：手动软启动模式 0：无效 1：变频泵 2：工频泵 3：休眠泵 4：排污泵 5：消防保压工频泵 6：消防保压变频泵
21、泵故障记录不为0指示
22、消防命令有效指示
23、消防巡检运行指示
FH-35
手动软启动投切频 率
0.00 ~ 50.00Hz
最小单位 出厂设定值 更改
1
0
★
1
0
★
1
0
★
10★10★1
0
★
1
0
★
1
0
★
1
0
★
1
0
★
1
0
★
0.01Hz 50.00Hz
★
-5-
MD320 变频器恒压供水功能使用说明书
功能码
1
0
★
0.01
0.00
☆
0.01
0.00
☆
0.01
0.00
☆
0.01
0.00
☆
0.01
0.00
☆
0.01
0.00
☆
0.01
0.00
☆
0.1%
50.0%
☆
0.1%
50.0%
☆
0.1%
50.0%
☆
0.1%
50.0%
☆
0.1%
50.0%
☆
0.1%
50.0%
☆
FH-51 FH-52 FH-53 FH-54 FH-55
☆
率
FH-64
加工频泵时变频泵 0.0 ~ 300.0s 减速时间
0.1s
5.0s
☆
-6-
MD320 变频器恒压供水功能使用说明书
功能码
名称
设定范围
FH-65 FH-66 FH-67
FH-68 FH-69 FH-70
减泵压力容差 减泵延迟时间 减泵时变频泵加速 时间 拉闸延迟时间 合闸延迟时间 泵自动轮换周期
FH-56
FH-57 FH-58 FH-59 FH-60
最大压力 超压判断时间 最小压力 欠压判断时间 水位信号输入选择
水位信号模拟量输 入通道选择
水位2 水位1 缺水水位 备用压力
0.0 ~ 100.0% 0 ~ 3600s 0.0 ~ 100.0% 0 ~ 3600s 0：无输入，不进行液位控制 1：由开关量输入端子输入 2：由模拟量输入端子输入 0：AI1 1：AI2 2：AI3 3：PULSE(脉冲输入) 0 ~ 100% 0 ~ FH-57 0 ~ FH-58 0.0 ~ 100.0%
☆
1Min
5Min
★
0.01Hz 10.00Hz
☆
1
0
☆
1
0
☆
FH-82 变频器故障处理方 0：全部停机
1
0
☆
式
1：变频器切换到下一台变频泵，若再无
变频泵，则进行工频控制。
FH-83 供水下限频率
0.00~50.00Hz
0.01Hz 25.00Hz
☆
FH-84 停机关泵间隔时间 0~60s
1s
5s
☆
0.1%
100.0%
☆
1s
0s
☆
0.1%
0.0%
☆
1s
0s
☆
1
0
★
1
0
★
1%
0%
☆
1%
0%
☆
1%
0%
☆
0.1%
20.0%
☆
FH-61 加泵压力容差
0.0 ~ 50.0%
0.1%
10.0%
☆
FH-62 加泵延迟时间
0 ~ 3000s
1s
60s
☆
FH-63 加变频泵时上切频 上限频率（F0-12）~最大频率（F0-10） 0.01Hz 50.00Hz
0：无效 1 ~ 6：选定几个时段有效 0.00 ~ 23.59 0.00 ~ 23.59 0.00 ~ 23.59 0.00 ~ 23.59 0.00 ~ 23.59 0.00 ~ 23.59 0.00 ~ 23.59 0.0 ~ 100.0% 0.0 ~ 100.0% 0.0 ~ 100.0% 0.0 ~ 100.0% 0.0 ~ 100.0% 0.0 ~ 100.0%
0：无效
1：普通供水模式
适用于一般的恒压供水系统，例如生活、生产恒压供水，市政供水系统以及污水处理系统；另外，在其他
类似的系统中，比如恒压供油系统、恒压通风系统等，也可以选择该模式。
2：消防模式
仅适用于消防专用供水系统。
3：手动软启动模式
用于调试，确定变频泵的投切接线、逻辑是否正确
FH-01 泵1类型
RY1继电器输出功能 0、 无功能
选择
1、 泵1变频控制
RY2继电器输出功能 2、 泵1工频控制
选择
3、 泵2变频控制
RY3继电器输出功能 4、 泵2工频控制
选择
5、 泵3变频控制
RY4继电器输出功能 6、 泵3工频控制
选择
7、 泵4变频控制
RY5继电器输出功能 8、 泵4工频控制
选择
9、 泵5变频控制
通讯接口
图 2-2 多泵供水控制卡外形尺寸示意图
2.3 控制端子及接线
⑴、控制回路端子图 RY1 RY2 RY3 RY4 RY5 RY6 RY7 RY8 RCM RCM
Y1 Y2 CMY DI6 DI7 DI8 DI9 DI10 COM COM AI3 GND GND 485+ 485-
⑵、控制端子功能说明
出厂值
0
FH-02 泵2类型
出厂值
0
FH-03 泵3类型
出厂值
0
FH-04 泵4类型
出厂值
0
FH-05 泵5类型
出厂值
0
FH-06 泵6类型
出厂值
0
FH-07 泵7类型
出厂值
0
设定范围 0 无效
1 变频泵
2 工频泵
3 休眠泵
4 排污泵
5 保压工频泵
6 保压变频泵
0：无效
对应的泵不安装或者不参与系统工作
RY6继电器输出功能 10、泵5工频控制
选择
11、泵6变频控制
RY7继电器输出功能 12、泵6工频控制
选择
13、泵7变频控制
RY8继电器输出功能 14、泵7工频控制
选择
15、休眠运行指示
Y1开路集电级输 出 16、超压指示
功能选择
17、欠压指示
Y2开路集电级输出 功能选择
18、备用压力运行指示 19、水池缺水指示 20、消防巡检预警指示
说明：“☆”：表示该参数的设定值在变频器处于停机、运行状态中，均可更改。 “★”：表示该参数的设定值在变频器处于运行状态中，不可修改。
-7-
MD320 变频器恒压供水功能使用说明书
四、功能参数详细说明
FH-00 供水模式选择
出厂值
0
设定范围 0 无效
1 普通供水模式
2 消防模式
3 手动软启动模式
该参数供用户选择供水模式：
数字输入端子 6 数字输入端子 7 数字输入端子 8 数字输入端子 9 数字输入端子 10 数字输出端子 1 数字输出端子 2 继电器输出常开端子 继电器输出常开端子 继电器输出常开端子 继电器输出常开端子 继电器输出常开端子 继电器输出常开端子 继电器输出常开端子 继电器输出常开端子
功能说明 1、 输入电压范围：DC 0～10V 2、 输入阻抗：100KΩ
类别
端子符号
模拟
输入 AI3-GND
端子名称 模拟量输入端子 3
数字 输入 数字 输出
继电器 输出
DI6-COM DI7-COM DI8-COM DI9-COM DI10-COM Y1-CMY Y2-CMY RY1-RCM RY2-RCM RY3-RCM RY4-RCM RY5-RCM RY6-RCM RY7-RCM RY8-RCM
0
☆
1 ~ 6： 选择T1~T6中的某个时段休眠
FH-72 休眠压力容差
0.0 ~ 50.0%
0.1%
10.0%
☆
FH-73 休眠加减泵延迟时 0 ~ 3000s
1s
60s
☆
间
FH-74 休眠唤醒使能
0：无效
1
0
☆
1：有效
FH-75 FH-76
FH-77 FH-78
FH-79 FH-80
FH-81
消防压力设定 自动消防巡检周期
MD320 变频器恒压供水功能使用说明书
MD 系列模块化 矢量型变频器
恒压供水功能使用说明书
深圳汇川技术股份有限公司
-1-
MD320 变频器恒压供水功能使用说明书
一、简介
MD320 通用变频器安装上 MD32WS 多泵供水控制卡可以实现多泵恒压供水。它包含了普 通生活供水和消防供水控制模式，可以完成系统中变频泵、工频泵、休眠泵、排污泵以及消 防泵的设定以及自动切换逻辑，同时可以实现多时段恒压供水、休眠控制、排污控制、定时 换泵、故障泵的判断、报告以及自动退出逻辑。