ABB ACS880 Series, Application Manual, Page: 29 / 44

Parameter settings 29

Parameters for the SSE function
These parameters are related to the Safe stop emergency (SSE) function of the FSO
module. The safety functions described in this guide do not use this function, but the FSO
module can activate the SSE function in internal fault situations.

Parameters for the SS1 function
Set these parameters only if you what that the FSO module activates the SS1 function in
overtemperature situations.
I/O settings
SAFEIO.33
DI X113:1 diag
pulse on/off On
1)
Sets the diagnostic pulse of digital input X113:1 on or off.
On : The input monitors that it receives test pulses.
In this example (see page 20 ), the STO/SS1 request is
connected to this digital input.
SAFEIO.37 DI X114:1 diag
pulse on/off
On
1)
Sets the diagnostic pulse of digital input X114:1 on or off.
On : The input monitors that it receives test pulses.
In this example (see page 20 ), the STO/SS1 request is
connected to this digital input.
1) The safety data (see page 34 ) is based on the assumption that this diagnostic measure for the wiring is
active ( On ). If pulsing is disabled, you must consider other measures to ensure sufficient diagnostic coverage
of the failures in wiring.
Index Name Example
value Description
SSE.13 SSE function Immediate
STO
or
Emergency
ramp Sets the type of the SSE function.
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 is below the zero
speed limit (parameter
FSOGEN.51 or FSOGEN.52 ) it
activates the STO function. SAR0 parameters define the
deceleration ramp (for more information, see the FSO
module user’s manual).
Note : The default value after factory reset is Emergency
ramp . Always check this parameter after factory reset.
SBC usage
SBC.15 SSE/SS1 SBC speed 0 rpm Sets the absolute speed below which the FSO module
activates the brake (SBC) while ramping.
0 rpm : The feature is not in use.
In the safety functions described in this guide, this feature
is not used. Make sure that the value is
0 rpm .
Index Name Example
value Description
SS1.01 SS1 activity and version Version 1 Activates or deactivates the SS1 function and shows the
version of the SS1 function.
Version 1 : Activates version 1 of the SS1 function. For
more information, see the FSO module user’s manual.
SS1.11 SS1 input A STO: None
SS1:
DI X113:1&
X114:1 Sets the digital input that is connected to the primary
input of the SS1 function.
Note : The default value after factory reset is None .
Always check this parameter after factory reset.
SS1.12 SS1 input B None Sets the digital input that is connected to the secondary
input of the SS1 function.
Index Name Example
value Description