3.8 I/O Connections 3.8 I/O Connections u Sinking/Sourcing Mode Switch Set the DIP switch S3 on the front of the drive to switch the digital input terminal logic between sinking mode and sourcing mode; the drive is preset to sinking mode. Table 3.10 Sinking/Sourcing Mode Setting DIP Switch S3 SINK SOURCE Figure 3.16 DIP Switch S3 n Transistor Input Signal Using 0 V Common/Sink Mode When controlling the digital inputs by NPN transistors (0 V common/sinking mode), set the DIP switch S3 to SINK and use the internal 24 V power supply. S1 SINK SOURCE Shielded Cable Multi-funciton input FWD Run/Stop REV Run/Stop External Fault N.O. Multi-step Speed 1 Fault Reset +24 V Figure 3.17 Sinking Mode:
Sequence from NPN Transistor (0 V Common) n Transistor Input Signal Using +24 V Common/Source Mode When controlling digital inputs by PNP transistors (+24 V common/sourcing mode), set the DIP switch S3 to SOURCE and use an external 24 V power supply. 44 SIEP C710606 33A OYMC AC Drive – J1000 User Manual Set Value Details SINK Sinking Mode (0 V common): default setting SOURCE Sourcing Mode (+24 V common) S2 S3 S4 S5