ABB ACS880 Series, Application Manual, Page: 26 / 44

26 Parameter settings
FSO module
If you use an FSO module in the safety system configuration, set and check the FSO
parameters listed in this section.
You need the Drive composer pro PC tool to set the FSO module parameters, and a
password to be able to download the configuration to the FSO module from Drive
composer pro. For the default password of the FSO module, see the FSO module user’s
manual. For more information on the Drive composer pro PC tool, see
Start-up and
maintenance PC tool Drive composer user’s manual (3AUA0000094606 [English]).
Follow the configuration steps described in the FSO module user’s manual, chapter
Configuration .
There are parameters that you must set always when you use the FSO module and
parameters that are related only to certain safety functions. This section lists the
parameters that are relevant to the Q971. The example values apply to the two-
channel wiring example on page
20 . The protection relay is connected to digital inputs
X113:1 and X114:1 of the FSO module.
You can configure the FSO module so that it opens the drive STO circuit either
immediately after the safety function request (stop category 0) or after a deceleration ramp
(stop category 1). In the first case, the FSO module activates the STO function in the FSO
module. In the second case, it activates the SS1 function. Example values are given for
both cases.
Always consider which stop category is more appropriate for the motor in overtemperature
situations.
Note : If other safety functions are configured in the same FSO module, the same
parameter values apply to all safety functions. You must take all safety functions into
consideration when you configure the FSO module. See the FSO module user’s manual.

General parameters
These parameters are common to all safety functions in the STO module.
Index Name Example
value Description
FSOGEN.11 Stop completed
output
None Sets the digital output that indicates the completion of any
stop function. Active when the FSO module has completed the
STO, SSE or SS1 function.
FSOGEN.21 Motor nominal
speed
1500 rpm Sets the nominal motor speed. Adjust the default value to
meet the ratings of the motor in use.
FSOGEN.22 Motor nominal
frequency
50 Hz Sets the nominal motor frequency. Adjust the default value to
meet the ratings of the motor in use.
FSOGEN.41 Power-up
acknowledgement
Automatic Sets the power-up acknowledgement method of the FSO
module.
Automatic : You do not need to push a reset button after
switching on the FSO module. The FSO module generates the
acknowledgement signal automatically after the power-up.
Manual : The FSO module reads the external
acknowledgement signal through the digital input defined by
parameter
FSOGEN.42 .
Make sure that the value is Automatic.