electronics Module VMPA1-FB-EMS-8 For valve terminal MPA-S with fieldbus Connection, for 8 solenoid coils, standard. Diagnosis=- Undervoltage of valves, Max. number of valve Positions=4, Max. number of solenoid coils=8, Intrinsic current consumption at load voltage=3 mA, Intrinsic current consumption at operating voltage=8 mA