Sink logic and source logic • In the sink logic, a signal turns ON when a current exits from the corresponding signal input terminal. 1 Terminal SD is common to the contact input signals. • In the source logic, a signal turns ON when a current enters into the corresponding signal input terminal. Terminal PC is common to the contact input signals. 2 ●Current flow concerning the input/output signal when sink logic is selected ●Current flow concerning the input/output signal when source logic is selected Sink logic Source logic 3 PC Current Sink connector 5 STF R Source connector STR R 5 6 • When using an external power supply for transistor output 7 8 9 10 37 2.
INSTALLATION AND WIRING 2.6 Control circuit Curren t STF R STR R SD Sink logic Use terminal PC as a common terminal, and perform wiring as follows. (Do not connect terminal SD on the inverter with the terminal of 0 V for the external power supply. When using terminals PC-SD as a 24 VDC power supply, do not install an external power supply in parallel with the inverter. Doing so may cause a malfunction in the inverter due to undesirable currents.) IQ-Rtype transistor Inverter output unit TB1 STF 24 VDC (SD) TB2 STR Constant TB17 voltage PC circuit TB18 24 VDC SD Current flow Source logic Use terminal SD as a common terminal, and perform wiring as follows.
(Do not connect terminal PC on the inverter with the terminal of +24 V for the external power supply. When using terminals PC-SD as a 24 VDC power supply, do not install an external power supply in parallel with the inverter. Doing so may cause a malfunction in the inverter due to undesirable currents.) IQ-R type transistor Inverter output unit PC TB1 STF 24 VDC (SD) TB2 STR Constant VDC voltage Fuse TB17 circuit 24 TB18 SD Current flow Constant TB2 STR TB17 Constant TB2 VDC TB17 24 TB18 STR SD volta circ ge uit volt cir age cuit