Chapter 18 Safe Torque Off Function│CP2000 
18-6 
 
18-5 Operating Sequence Description 
18-5-1 Normal operation status 
As shown in Figure 1: When the STO1–SCM1 and STO2–SCM2=ON (no STO function is needed), 
the drive executes “Operating” or “Output Stop” according to the RUN/STOP command. 
 
Figure 1 
 
18-5-2-1 STO, Pr.06-44=0, Pr.02-35=0 
As shown in Figure 4: When both of STO1–SCM1 and STO2–SCM2 channel have turned off during 
operating, the STO function enables and the drive stops output regardless of Run command is ON or 
OFF status. 
   
Figure 2 
18-5-2-2 STO, Pr.06-44=0, Pr.02-35=1 
As shown in Figure 3: the same as  figure 2.  However, due  to the  setting for  Pr.02-35 is  1, if  the 
operating command still exists after the Reset command, the drive will immediately execute the run 
command again. 
   
Figure 3