Parameters 411
STO.13 Restart delay after
STO
Sets the time after which the
acknowledgement of the FSO module and
restart of the drive are allowed after the FSO
has activated the STO function and opened
the drive STO circuit. With this parameter,
you can allow a restart of the drive before
the motor has stopped (fly-start).
This parameter is relevant only when an
external request activates the STO function.
If you do not want to use the fly-start feature,
set this parameter to the same value as
parameter STO.14 Time to zero speed with
STO and modoff.
3,600,000
ms
0…3,600,000 ms Time
STO.14 Time to zero speed
with STO and
modoff
Sets the time that is needed to coast the
motor to a standstill from maximum process
speed. If this time is not known, it can be
measured with Drive composer pro PC tool
when an encoder is used for motor control
(otherwise you have to make sure that the
motor shaft has stopped rotating by other
means, eg, visually.).
Acknowledgement is allowed after coast
stop in the STO, SSE and SS1 functions
(when SBC is not used).
If SBC is used, see parameter SBC.13 SBC
time to zero speed.
If an external request activates the STO
function, this parameter sets the time after
which the function is completed and the STO
completed indication goes on. In this case,
parameter STO.13 Restart delay after STO
defines the time after which the
acknowledgement is allowed.
If the drive STO is activated or modulation
stopped while a monitoring safety function is
indicating “unsafe”, after this time
acknowledgement is allowed. For example,
if the drive modulation is lost during SLS
deceleration ramp, SLS OK will be indicated
after this time has elapsed. See section SLS
trip limit hits on page 167.
When an encoder is used
: This parameter is
relevant only if there is an encoder failure
and the FSO module activates the STO
function.
3,600,000
ms
Index Name/Value Description Factory
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