磨床加工中应用的模拟量放大器E9 D6E00901G1.pdf

E9ELECTRONIC AMPLIFIER FOR IN-PROCESS APPLICATIONSThe Marposs E9 electronic amplifier represents an economical,practical and highly reliable solution for applications on low-to-medium complex grinders.GENERAL DESCRIPTIONThe E9 system is an electronic amplifier for in-processapplications designed to be versatile and complete to solvesimple measuring problems on grinders.It solves measuring problems during the grinding operation.Thesignal detected is compared with pre-fixed values,giving to thegrinder and to the operator the information needed to optimizethe grinding cycle and to achieve the set quality level.It can be directly connected to an in-process measuring head tocheck outer or inner diameters on interrupted or uninterruptedsurface,grooves,positionings,planes.Its manufacturing process is the same as the other measuringelectronic units,i.e.with new managerial procedures assuringreliability and precision.It has been devised to get a complete modularity andaccessibility,using material which makes it able to withstandgrinder working conditions.It is provided with an analog instrument with hundredth/thousandth switching of the sensitivity.On grinders applications with manual machining cycle,theinstantaneous value of the part measurement read on theinstrument of the electronic amplifier gives all the informationneeded to perform the working cycle in the most appropriateway.On the panel there are the elements to set and modify theparameters which adjust the measurement management,as wellas the zero correction with related visualization on a dedicateddisplay of the given compensation amount.On grinders applications with automaticmachining cycle the amplifier detects thepart measurement during the machiningoperation,processes and compares itwith the pre-established values(controls)sending to the machine the signals for thevarious phases of the working cycle,suchas:-changes of feed speed-feed stop and spark-out-return of grinding wheel to the restposition when the pre-fixed value hasbeen achieved.The E9 system can be supplied both asa drawer to be put into 19?cabinetsandinto a cabinet with plexiglass movablefront cover(if requested)so as to obtaina higher protection level on the front panel.When supplied into a cabinet,there aretwo optional different supports to be usedto fix the amplifier to the machine.E9 ELECTRONIC AMPLIFIER1 -Instrument to display themeasurement value2 -Potentiometers for control firingpoint adjustment3 -Switch for selection of contacts4 -Led to signal that the unit is on5 -Power supply switch6 -Push-buttons for correction(pulsefeed-back)7 -Display to visualize the correction8 -Manual/Automatic switch9 -Potentiometer for delay timeadjustment10-Zero-setting potentiometer11-Harting connector for I/O?s12-Connectors for a measuring head13-Connector for analog output14-Connector for power supply?12341)Automatic soldering line2)Computer-based cards testing system3)Burn-in room4)Cards electronic testingQUALITY AND RELIABILITY ASSURANCEThe reliability and the quality of the sub-assemblies composing the E9 systemare guaranteed both by the design to ob-tain high-protection level and noises im-munity,and by a production processemploying the most selective testing tech-nologies and methods.The system pro-duction process,like all Marposs prod-ucts,employs:-computer guided circuit board assem-bly-automatic soldering line-computer based?in-circuit?testing sys-tems-?burn in?rooms where the boards workfor around 100 hours at 60?C(140?F)-units for 100%checking of boards,thatsimulate operating conditions to verifyand document the conformity of boardperformances to design specifications-testing benches to control functionalityand the performances of assembled unit-analysis and testing laboratory to verifyif the product responds to safety,envi-ronmental and industrial specificationsaccording to the national and interna-tional standards:-thermal shocks-high protection level to dust and liquid-simulation of shocks and transportconditions-controls on electromagnetic compat-ibility-check of a product self-burning out-structural and metallographic analysis.Specifications are subject to modifications-1998 by Marposs-D6E00901G1?General regulation for standard emissions(in industrial environment)EN 50081-2General regulation for immunity from disturbances(in industrial environment)EN 50082-2The acceptance criterion required for our equipments is B)IEC 801-2(EN 61000-4-2)The acceptance criterion required for our equipments is A)IEC 801-3(ENV 50140)The acceptance criterion required for all connections of our equipments is B)IEC 801-4The acceptance criterion required for all connections of our equipments is A)IEC 801-6The acceptance criterion required for our equipments is A)except for theIEC 1000-4-8monitors where B)is foreseen(ENV 61000-4-8)?