ABB ACS880-17, User Manual

Page: 37 / 58

Parameter settings 37

Parameters for the STO function
These parameters are related to the STO function of the FSO module. The Emergency
stop, stop category 0 function uses this function. In addition, the FSO module can activate
the STO function in internal fault situations.
FSOGEN.61 STO indication ext
request
Warning Sets the type of the indication that the FSO module generates
and sends to the drive after external requests that end to a
successful activation of the drive STO function (STO, SSE or
SS1).
In the safety functions described in this manual, you can use
this indication as the Emergency stop indication message.
Adjust the default value when necessary.
FSOGEN.62 STO indication
safety limit
Fault Sets the type of the indication that the FSO module generates
and sends to the drive for limit hits during ramp and time
monitoring of safety ramps SAR0 and SAR1.
Emergency stop, stop category 0: This value has no effect in
the operation.
Emergency stop, stop category 1: 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. Check the default setting and adjust if
necessary.
If you select Fault , you must reset the drive before
you can restart it.
Index Name Example
value Description
STO.02 STO
acknowledgement
Manual Sets the acknowledgement method used in the STO, SSE and
SS1 functions.
Manual : The FSO module reads the external
acknowledgement signal through the digital input defined by
parameter
FSOGEN.42 .
In the safety functions described in this manual, the user
acknowledges the safety function manually with the
emergency stop reset button. Make sure that the value is
Manual.
WARNING! If the value is Automatic , the FSO module
resets the STO function automatically after the user
has released the emergency stop button and the drive
can restart automatically. This can cause danger.
STO.11 STO input A
Stop cat. 0:
DI X113:1 &
X114:1
Stop cat. 1:
None
Sets the digital input that is connected to the primary input of
the STO function.
Emergency stop, stop category 0: For the Q979, ABB
has configured the emergency stop button to this digital input
at the factory. Make sure that the setting corresponds to the
circuit diagrams of the delivery.
Emergency stop, stop category 1: Make sure that this
parameter has value
None . (An external signal cannot start the
STO function.)
Note : The default value after factory reset is DI X113:1 &
X114:1 . Always check this parameter after factory reset.
Index Name Example
value Description