18.2.2 Auxiliary supply voltage inputThe auxiliary voltage of the IED is connected to terminals X420-1 and X420-2/3. Theterminals used depend on the power supply.The permitted auxiliary voltage range of the IED is marked on top of the IED's LHMI.Table 614:Auxiliary voltage supply of 110...250 V DC or 100...240 V ACCase Terminal Description3U full 19” X420-1 - InputX420-3 + InputTable 615:Auxiliary voltage supply of 48-125 V DCCase Terminal Description3U full 19” X420-1 - InputX420-2 + InputTable 616:Auxiliary voltage supply of 24-30 V DCCase Terminal Description3U full 19” X420-3 - InputX420-2 + Input18.2.3 Binary inputsThe binary inputs can be used, for example, to generate a blocking signal, to unlatch outputcontacts, to trigger the digital fault recorder or for remote control of IED settings.Each signal connector terminal is connected with one 14 or 16 Gauge wire.Table 617:Binary inputs X304, 3U full 19”Terminal Description PCM600 infoHardware moduleinstance Hardware channelX304-1 Common - for inputs 1-3X304-2 Binary input 1 + COM_101 BI1X304-3 Binary input 2 + COM_101 BI2X304-4 Binary input 3 + COM_101 BI3X304-5 Common - for inputs 4-6Table continues on next page1MRK 506 335-UUS A Section 18IED physical connections789Technical manual
