Electrical installation 69 Default I/O connection diagram (ABB standard macro)This connection diagram is valid for drives with the I/O & Modbus extension module:• Standard variant (ACS380-04xS)• Configured variant (ACS380-04xC) with the I/O & Modbus extension module(option +L538)Refer to Type designation key on page 35.Terminals DescriptionsDigital I/O connectionsAux. voltage output +24 V DC, max. 200 mAAux. voltage output commonDigital input commonStop (0)/Start (1)Forward (0)/Reverse (1)Speed selectionSpeed selectionDigital input function: Ramp set 1 (0)/Ramp set 2 (1)Digital output function: Ready to run (0)/Not ready (1)Digital output auxiliary voltageDigital input/output commonAnalog I/OOutput frequency/Speed reference (0...10 V)Analog input circuit commonNot configuredAnalog input circuit commonOutput frequency (0...20 mA)Analog output circuit commonSignal cable shield (screen)Reference voltageSafe torque off (STO)Safe torque off function. Connected at factory. Drive startsonly when both circuits are closed. Refer to Safe torque offfunction on page 139.Relay outputRelay output 1No fault [Fault (-1)]EIA-485 Modbus RTUEmbedded Modbus RTU (EIA-485)+24VDGNDDCOMDI1DI2DI3DI4DIO1DIO2DIO SRCDIO COMAI1AGNDAI2AGNDAOAGNDSCR+10VS+SGNDS1S2RCRARBB+A-BGNDShieldTermination1...10 kohmMax. 500 ohm
