DescriptionExample valueNameIndex
Sets the digital output that is connected to
the SBC output.
DO X113:9 & X114:9SBC outputSBC.21
In safety functions described in this manual,
the SBC function is used to control the
auxiliary safety relay(s) that is connected
to the main contactor/breaker of the drive
by default. This value must be the same as
the value of parameter SAFEIO.21. Make
sure that the setting corresponds to the cir-
cuit diagrams of the delivery.
Sets the action that the FSO module takes
when there is a problem with the SBC
feedback.
STOSBC feedback actionSBC.22
STO: The FSO module goes into the Fail-
safe mode and activates the drive STO
function.
￭ Parameters for the SSE function
These parameters are related to the Safe stop emergency (SSE) function of the FSO module.
The FSO module can activate the SSE function in internal fault situations.
DescriptionExample valueNameIndex
Sets the type of the SSE function.Immediate STO or
Emergency ramp
SSE functionSSE.13
Immediate STO: The FSO module activates
the drive STO function immediately after
the SSE request.
Emergency ramp: The FSO module first
ramps down the motor speed and when the
speed has reached the zero speed limit
(parameter FSOGEN.51 or FSOGEN.52),
it activates the STO function. SAR0 para-
meters define the deceleration ramp (for
more information, see the FSO module
user’s manual).
For the option +Q978, ABB sets this para-
meter to value Immediate STO at the fact-
ory. Adjust the default value when neces-
sary.
Note: The default value after factory reset
is Emergency ramp. Always check this
parameter after factory reset.
SBC usage
Sets the absolute speed below which the
FSO module activates the brake (SBC)
while ramping.
0 rpmSSE/SS1 SBC
speed
SBC.15
0 rpm: The feature is not in use.
In the safety functions described in this
manual, this feature is not used. The SBC
activation is connected to the STO function
with parameter SBC.11. Make sure that the
value is 0 rpm.
48 Parameter settings
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