Delta VFD11AMS21AFSHA, User Manual

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Chapter 17 Safe Torque Off Function

MS300
(High Speed Model)
17-8
17-6-4 STL1, Pr. 06-44=0 or 1
As shown in Figure 8: When S1~DCM is OFF during operation (STO function is required) and
S2~DCM is ON (STO function is not required), the drive will stop outputting and keypad will
show STL1 error. However, STL1 error cannot be reset even if the S1 status is restored (ON)
regardless of the parameter setting. Turn the power on after power off to reset, thereby the
drive can restore to normal standby state.
Figure 8
17-6-5 STL2, Pr. 06-44=0 or 1
As shown in Figure 9: When S1~DCM is ON during operation (STO function is not required)
and S2~DCM is OFF (STO function is required), the drive will stop outputting and keypad
will show STL2 error. However, STL2 error cannot be reset even if the S2 status is restored
(ON) regardless of the parameter setting. Turn the power on after power off to reset, thereby
the drive can restore to normal standby state.
Figure 9
ON
ON
OFF
ON
RUN co mmand
Dri ve out put
RUN
ST OP
RUN
Oper ating Ou tput s to p
S1~DCM
input status
S2~DCM
input status
ON
O N
O FF ON
RUN co mmand
Dr iv e output
S TO P
RUN
RUN
Operati ng O utp ut s t op
S1~DCM
input status
S2~DCM
input status