26 • The WAGO-I/O-SYSTEM 750Power SupplyWAGO-I/O-SYSTEM 750ETHERNET TCP/IP2.7.2 System Supply2.7.2.1 ConnectionThe WAGO-I/O-SYSTEM 750 requires a 24 V direct current system supply(-15% or +20 %). The power supply is provided via the coupler/controller and,if necessary, in addition via the internal system supply modules (750-613).The voltage supply is reverse voltage protected.AttentionThe use of an incorrect supply voltage or frequency can cause severe damageto the component.Fig. 2-11: System Supply g0xxx02eThe direct current supplies all internal system components, e.g.coupler/controller electronics, fieldbus interface and bus modules via theinternal bus (5 V system voltage). The 5 V system voltage is electricallyconnected to the 24 V system supply.Fig. 2-12: System Voltage g0xxx06e
