Default I/O connection diagramThe default control connections for the Water default are shown below.500 ohmMax.1…10 kohmX11 SCRReference voltage and analog inputs and outputs2 AI1Signal cable shield (screen)3 AGNDOutput frequency/speed reference: 0…10 V1)4 +10VAnalog input circuit common5 AI2Reference voltage 10 V DC6Actual feedback: 0…10 VAGND7 AO18 AO2Analog input circuit commonOutput frequency: 0…10 V9 AGNDOutput current: 0…20 mAAnalog output circuit common10 +24VX2 & X3 Aux. voltage output and programmable digital inputs11 DGNDAux. voltage output +24 V DC, max. 250 mA 2)12 DCOMAux. voltage output common13 DI1Digital input common for all14 DI2Stop (0) / Start (1)15 DI3Not configured16 DI4Constant frequency/speed selection 3)17Not configuredDI518Not configuredDI6X6, X7, X8Not configured19 RO1CRelay outputs20 RO1A21 RO1BReady run250 V AC / 30 V DC2 A22 RO2C23 RO2A24 RO2BRunning250 V AC / 30 V DC2 A25 RO3C26 RO3A27 RO3BX5Fault (-1)250 V AC / 30 V DC2 A29 B+Embedded fieldbus30 A-31 DGNDS4 TERMEmbedded fieldbus, EFB (EIA-485)S5 BIASTermination switchX4Bias resistors switch34Safe torque offOUT135 OUT236 SGND37 IN138 IN2X104024 V AC/DC41Safe torque off. Factory connection. Bothcircuits must be closed for the drive to start. Seechapter Safe torque off function24 V AC/DC+ in24 V AC/DC- inExt. 24V AC/DC input to power up the control unitwhen the main supply is disconnected. 7)4)6)4) 4)5)1)Total load capacity of the Auxiliary voltage output +24V (X2:10) is 6.0 W (250 mA / 24 V DC).Terminal sizes: 0.14…2.5 mm2 (all terminals)Tightening torques: 0.5…0.6 N·m (0.4 lbf·ft)Notes:1. Current [0(4)…20 mA, Rin = 100 ohm] or voltage [0(2)…10 V, Rin >200 kohm]. Changeof setting requires changing the corresponding parameter.Control unit 75