REXROTH公司总部注册于德国斯图加特，公司于1795年成立，及后不断致力在各制造技术领域犮展，近五十年来，在国际液压市场一直处于世界领先的位置。REXROTH致力于为各类机械和系统设备提供安全、精准、高效以及高性价比的传动与控制技术。公司融合全球的应用经验，研发创新的产品，为行走机械、机械应用与工程、工厂自动化及可再生能源每一个细分市场的客户量身定制系统解决方案及服务。?REXROTH的主要产品有：换向阀，止回阀，电磁阀，平衡阀，球阀，插装阀，单向阀，溢流阀，行程阀，驱动阀，安全阀，阀组，阀块，电磁阀线圈，流量计等等。?REXROTH放大器RA系列规格描述Technical DataRA1-0RA2-1Nominal voltageResidual ripple (DIN 40839, Section 1)?Supply voltage, perm. Range12 and 24 VMax. ±2V10...32V√√Current consumptionwithout loadwith load, max.MAA15031506Fuseinternal:external: for switching and proportional solenoid outputs and for electronicsAT–3–7.5Potentiometer supply voltage0 V, 4.0 V√√(for setpoint potentiometer 2 … 5 kW)7.2 V … 8.4 V (depending on load)Voltage input (differential ampli?er)4.0 V12(Setpoint voltage)Switch input> 5.0 V–1Proportional solenoid outputs (PWM)Current rangePulse frequency0…2.3 A100, 200 or 350 Hz12Switch output (MOSFET)max. 1 A–1LED indicators:redError (error indicatio)n√√greenPower (operating indicator)√√yellowI1 (PWM current Channel 1)√√yellowI2 (PWM current Channel 2)–√Error detectionPotentiometer: for broken wires and short circuit(with exception of wiper)Voltage supply: undervoltage monitoring√√√√Resistance to short circuitsTo supply voltage and ground for all inputs and outputs (Exception: potentiometer supply 4.0 V to supply voltage)√√Reverse polarity protectionSupply/Battery√√Electromagnetic compatibility?Spurious interference(motor vehicles directive 95/54/EG)Line-bound interference (ISO ?7637-1/-2/-3)Load Dump100 Vms/m; (Details on request)?Values on request70 V√√Max. power lossW at 32 V44Operating temperature, case–40 … 85°C√√Storage temperature, case–40 … 85°C√√Vibration resistance Sinusoidal vibration (IEC 60086-2-6)Random vibration (IEC ?60086-2-36)10 g / 57…2000 Hz 20 cycles per axis0.05 g2 / Hz30 min per axis√√REXROTH放大器RA系列特点模拟放大器最多可激活两个比例电磁阀。规定的控制电压在放大器中作为输入变量进行处理。模拟放大器提供调节电流作为输出变量，以驱动比例电磁阀。比例螺线管的放大器输出通过一个死区来激活。输入端最大设定点电压的5％，即最小输出电流被施加。可以使用微调电位器分别为两个比例输出分别调整此最小输出电流的水平。如果输入上的设定值电压增加，则每个比例电磁阀的输出电流都会线性增加。最大输出电流也可以使用微调电位器分别调节。输出曲线的斜率受此影响。模拟放大器包含时间斜坡功能，可用于调节输出电流可以匹配修改后的设定值的时间段。斜坡时间调整范围从100ms扩展到10s。可以使用微调电位器为每个螺线管调节时间斜坡功能。?The analog amplifier activates up to two proportional solenoids. The specified control voltage is processed in the amplifier as an input variable. The analog amplifier provides a regulated electric current as an output variable for actuation of proportional solenoids.Amplifier outputs for proportional solenoids are activated through a deadband of approx. 5% of the maximum setpoint voltage at the input, i.e. the minimum output current is applied. The level of this minimum output current can be adjusted separately for both proportional outputs using a trimming potentiometer. If the setpoint voltage at the input is increased, the output current for each respective proportional solenoid increases linearly.The maximum output current can also be separately adjusted using a trimming potentiometer for the outputs. The gradient of the output curve is influenced by this.The analog amplifier contains time ramp functions which can be used to adjust the period in which the output current can be adapted to match a modified setpoint. The ramp time adjustment range extends from 100 ms to 10 s. The time ramp functions can be adjusted using trimming potentiometers for each solenoid.?REXROTH放大器RA系列选型??REXROTH放大器RA系列其他常用型号：REXROTH RA2-1/10 R902091800REXROTH RA1-0/10 R902091900?REXROTH Amplifier?NEW + ORIGINAL+ ONE YEAR WARRANTY??
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