Timing Diagram Description; Normal Operation Status - Delta MS300 Series User Manual

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Chapter 17 Safe Torque Off FunctionMS300
17-6

Timing Diagram Description

The following timing diagram shows the status of relevant signals under different conditions:

17-6-1 Normal operation status

As shown in Figure 4: When S1~DCM and S2~DCM is ON (STO function is not required), the
drive will execute "Operating" or "Output Stop" according to RUN command.
17-6-2-1 STO, Pr. 06-44=0, Pr. 02-35=0 (Selection of external control operation after
reset / power on, 0=not valid)
As shown in Figure 5: When both of S1~DCM and S2~DCM are OFF during operation
(STO function is required), the drive will stop outputting when enter safe mode regardless
of Run command is ON or OFF status.
RUN co mmand
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RUN command
S1~DCM
input status
S2~DCM
input status
Drive out put
RUN
O N
S1~DCM
input status
S2~DCM O N
input status
Drive out put
Operat i n g Output stop
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STOP
RUN
ON (no S TO f unct ion n eed Pr. 0 6-44=0 )
ON (STO function is not required, Pr. 06-44=0)
ON (STO function is not required, Pr. 06-44=0) ON (no S TO f unct ion n eed Pr. 0 6-44=0 )
Output stop
Operat ing
Figure 4
ON
O FF
O N
O FF
Figure 5
17-6
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,
,
STOP
RUN
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