36 Function Description WAGO-I/O-SYSTEM 750750-632 Proportional Valve ModuleManualVersion 1.3.0, valid from FW/HW-Version 01/015.2.2 Specifying Setpoint Value: Operating Mode with TwoValvesTable 21: Operating Mode with Two ValvesSetpointvalue,referenceCoil control Setpointvalue rangeControl value rangeValve n One coilunidirectional−100 … < 0 % 0 %0 … +100 % 0 … 100 %Valve n One coilbidirectional−100 … < 0 % −100 … 0 %0 … +100 % 0 … 100 %5.2.3 Specifying the Setpoint Value: Operating Mode with TwoValves, Coil Control: Two Coils, Unidirectional (3-wire)(750-632/000-100 onlyCalculating the current offsetSetting the setpoint values to around zero yields a minimum current ofI min = 4,2 VR coilin this operating mode.R coil: Internal resistance of the attached coilTable 22: Operating Mode with Two ValvesSetpointvalue,referenceCoil control Setpointvalue rangeControl value rangeCoil n+ Coil n−Valve n Two coilsunidirectional(3-wire)−100 … < 0 % 0% 100 … 0 %0 … +100 % 0 … 100 % 0 %