Parameters For The Sto Function - ABB ACS880-01 Application Manual

Index Name
FSOGEN.62 STO indication safety
limit
￭

Parameters for the STO function

These parameters are related to the STO function of the FSO module. With stop category
0, the FSO module activates the STO function in overtemperature situations. Also, the FSO
module can activate the STO function in fault situations.
Index Name
STO.02 STO acknowledge-
ment
STO.11 STO input A
STO.12 STO input B
STO.13 Restart delay after
STO
Example value Description
Fault Sets the type of the event that the FSO module gener-
ates and sends to the drive for limit hits during ramp
and time monitoring of safety ramps SAR0 and SAR1.
STO function: The value has no effect.
SS1 function: When the motor speed does not follow
the stop ramp or the time limit is exceeded, the FSO
module activates the STO function and generates this
user-defined indication. Adjust the default setting if ne-
cessary. If you select Fault, you must reset the drive
before you can restart it.
Example value Description
Automatic or Sets the acknowledgement method used in the STO,
Manual SSE and SS1 functions.
Automatic: The FSO module resets the STO function
automatically after the STO request is removed.
Manual: The FSO module reads the external acknow-
ledgement signal through the digital input defined by
parameter FSOGEN.42. In the safety functions de-
scribed in this manual, you can use this setting to im-
plement a manual reset for the motor temperature
protection function in the FSO module.
STO: DI X113:1 Sets the digital input that is connected to the primary
& X114:1 input of the STO function.
SS1: None If you set this parameter to DI X113:1 & X114:1, set
parameter
None Sets the digital input that is connected to the secondary
input of the STO function.
2000 ms Sets the time after which the drive can restart when the
FSO module has activated the STO function and
opened the drive STO circuit. With this parameter, you
can let the drive restart before the motor has stopped
(fly-start). This parameter is applicable only if the STO
function is requested from STO input A (STO.11) or
STO input B (STO.12).
STO function: Adjust the value when necessary. If you
do not want to use the fly-start feature, set this paramet-
er to the same value as parameter STO.14.
SS1 function: This value has no effect.
Parameter settings 29
SS1.11 to None.