Guangzhou Bedford Electric Equipment Co., Ltd.  

Product Name: Intelligent Constant Differential Pressure Water Supply Controller Model NO.: B605B2&B605D Brand: Bedford Function: Elevator Special Nature of DC Power: Voltage Variable-Frequency Drive link of Transformation: AC-DC-AC Variable-Frequency Drive Voltage of Power Supply: Low Voltage Variable-Frequency Drive Main Circuit Type: Voltage Switch Mode: PWM Control Principle of Work: V/F Control Transducer Output Type: Triple Application: Three Phase Transducer Trademark: BEDFORD Transport Package: Plwood Case/Package/Pallet/Carton Origin: Guangzhou, China Product Description B605 SeriesIntelligent Constant Differential PressureWater Supply ControllerGUANGZHOU BEDFORD ELECTRIC EQUIPMENTCO.,LTD.In the traditional air conditioning system, pump and exhauster working at full-speed all the year round. It regulate flux or flowing rate by throttling and backflow, lot of power waste on it.It gains obvious energy-saving effect when insert the inverter control system into the central air-conditioning system(such as control the cooling pumps,frozen pumps or the cooling fans), regulate the flux and pressure by inverter technology, in place of the way of control flux by valve opening. The cooling pump's inverter control has avarious patterns, like pressure control, differential pressure control, temperature control,differential temperature control,etc.. Thereinto, temperature and differential temperature control is not only sensitive for surrounding temperature, but also weak on timeliness, it is not as good as pressure(differential pressure) control on stability and reliability. Differential pressure control is an variable flow control, it will confirms the system adapt to the variable air-conditioning load. It is reaction rapidly, little temperature and humidity influence, balance the system's supply and demands, do well in energy-saving, and so on.With high quality, multi-function, low noise and strong commonality etc. characteristics, B605 series intelligent constant pressure water supply controller is suitable tofull-automatic operation;Professional design based on users' needs, suitable for differential pressure control, simplicity of operation;According to the water condition to supply constant pressure water without manual operation after parameters were set correctly.Alarm automatically when fault occurred;Alternate running automatically in the multiple pump system, prolong the using life of pumps;Adapt to many kinds of input pressure signals;Can be connected to upper computer through RS485 communication function for centralized monitoringTechnology FeaturesInput &OutputInput Voltage Range:380/220V±15%Input Frequency Range:47~63HzOutput Voltage Range:0-rated input voltageOutput Frequency Range:0~50HzI/O FeaturesProgrammable Analog Input:AI1:0~10V or 0~20mA input, AI2: 0~10V or 0~20mA inputRelay Output:1OutputCommunication Port:RS485 Communication terminalsFunction CharacteristicsMulti-Pump Control:Can realize 1master and Max.5 auxiliaries combine workConstant Differential Pressure Control: PID Control based on the feedback source of (AI1-AI2);Power On Restart:Running automatically when power onAlternate Running:balance every pump's running time, prolong service life of the machineVarious of water supply Fault Alarm Function: High Pressure, Low Pressure, Low Level, Transducer Error etc.As many as 22 kinds of fault protection function: Over Current, Over Voltage, Low Voltage, Phase Failure, Over Load etc.Model No.Rated Input Voltage(V)Rated Input Current(A)Rated Output Current(A)Motor Power(kW)B605D(B2)-20011AC: 220V-15%~+15%8.24.50.75B605D(B2)-200214.27.01.5B605D(B2)-200323.0102.2B605D-20053AC: 220V-15%~+15%17.016.04.0B605D-200721.020.05.5B605D-201031.030.07.5B605D-201543.042.011B605D-202056.055.015B605D-202571.070.018.5B605D-203081.080.022B605D-2040112.0110.030B605D-2050132.0130.037B605D-2060163.0160.045B605D-2075200.0200.055B605D(B2)-40013AC: 380V-15%~+15%3.42.50.75B605D(B2)-40025.03.71.5B605D(B2)-40035.85.02.2.B605D(B2)-400510.09.04.0B605D(B2)-400715.013.05.5B605D(B2)-401020.017.07.5B605D(B2)-401526.025.011B605D(B2)-402035.032.015B605D-402538.037.018.5B605D-403046.045.022B605D-404062.060.030B605D-405076.075.037B605D-406090.090.045B605D-4075105.0110.055B605D-4100140.0150.075B605D-4120160.0176.090B605D-4150210.0210.0110B605D-4180240.0250.0132B605D-4215290.0300.0160B605D-4250330.0340.0185B605D-4270370.0380.0200B605D-4300410.0415.0220B605D-4340460.0470.0250B605D-4380500.0520.0280B605D-4430580.0600.0315B605D-4470620.0640.0350The DimensionofB605D Figure2-1-1 Dimension(0.75~18.5kW) Figure2-1-2 Dimension(22~132kW)Figure 2-1-3Dimension (160~350kW)Model(kW)A(mm)B(mm)H(mm)W(mm)D(mm)Installation HoleInstallation DimensionExternal Dimension0.75~2.2110169.6179.6120.1150.34.04~7.5147.4236250160194.55.011~18.5205.6303.6320220193.56.022~371754554722952226.545~75230564.55803802707.090~132320738.57554653309.0160~200(Without base)2701233127549039513.0160~200(With base)1490490395220~350(Without base)5001324135875040212.5220~350(With base)1670750402The DimensionofB605B2Figure 2-2-1Dimensionof B2modelModel(kW)A(mm)B(mm)H(mm)W(mm)D(mm)Installation HoleInstallation DimensionExternal Dimension0.75~2.2(B2models)--216195154-4~7.5(B2modes)--282255165-11-15(B2models)--370350221-Company Name:Guangzhou Bedford Electric Equipment Co,.Ltd.Mailing Add: Unit 3building,Fangcun Chajiao Industry Zone,Baihe Road,Liwan District,Guangzhou,ChinaTel./+86 13113061867QQ :2576364671Fax.:(020)81891390Web.:www.bedford.com.cn