User Manual EM303B General Purpose Inverter PLC 24V EM303B Inverter RUN Run F/R COM Forward/Reverse (a)F0 - 05=0 2-wire sequence (b)F0 - 20=0, F0 - 05=0 Forward/Reverse running sequence RUN F/R f Output Frequency Time -f (c)F0 - 05=1 2-wire sequence (d)F0 - 20=0, F0 - 05=1 Forward/Reverse running sequence Figure 7-2 2-Wire Sequence STOP RESET , stop command of external terminal, or monocycle time of PLC is up. Meanwhile, inverter reenters running status only when terminal RUN is ON again after OFF once. When F0-05= 0 or 1, even if terminal RUN is ON, inverter can be stopped by pressing 3-wire sequence:
F0-05=2 RUN is NO forward running button, F/R is NO reverse running button, Xi is NC stop button, all of them will be on at pulse edge. In running status, the inverter stops if pressing Xi button. When stop mode is selected as ramp-to-stop (F0 - 20=0), see Figure 7-3 (b) for the sequence diagram. Xi is the terminal among X1~X7 defined as 3-Wire Sequence Run/Stop Control by F2 - 00 ～ F2 - 06. F0-05=3 F/R is forward/reverse switching button (Forward when F/R is off, and reverse when F/R is on.) RUN is NO running button, and Xi is NC stop button, all of them will be on at pulse edge (F/R is on at level).
When stop mode is selected as ramp-to-stop (F0-20=0), the sequence diagram is as shown in Figure 7-3(d). 84 RUN F/R f Output Frequency -f Time PLC 24V EM303B RUN Inverter F/R COM Forward Reverse