Chapter 17 Safe Torque Off FunctionMH300
17-6 Timing Diagram Description
The following timing diagrams show the status of relevant signals under different conditions.
17-6-1 Normal operation status
As shown in Fig. 17-4, when S1–DCM and S2–DCM is ON (STO function is not required), the
drive executes Operating or Output Stop according to RUN command.
Fig.17
-4
17-6-2 STO status, Pr.06-44 = 0
17-6-2-1 STO, Pr.06-44 = 0, Pr.02-35=0
(external control operation after reset / power on, 0 = not valid)
As shown in Fig. 17-5, when both S1–DCM and S2–DCM are OFF during operation (STO
function is required), the drive stops outputting when it enters safe mode regardless of whether the
RUN command is in ON or OFF status.
Fig.17
-5