ABB FPTC-02, User Manual

Page: 58 / 96

Description Example
value Name Index
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). 2000 ms Time to zero
speed with
STO and mod-
off STO.14
Acknowledgement is allowed after
coast stop in the STO, SSE and SS1
functions (when SBC is not used). 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.
STO function: This parameter sets the
time after which the STO function is
completed and the STO completed in-
dication goes on. Parameter
STO.13
defines the time after which the acknow-
ledgement is allowed. Adjust the value
according to application requirements.
When an encoder is used: This para-
meter is relevant only if there is an en-
coder failure and the FSO module activ-
ates the STO function.
SBC usage
Sets how the mechanical brake is used
together with the STO function. None STO SBC us-
age SBC.11
In the safety functions described in this
manual, this feature is not used and
this parameter has value
None .
58 Parameter settings