Parameters For The Sse Function - ABB ACS880-07 User Manual

36 Option description

Parameters for the SSE function

These parameters are related to the Safe stop emergency (SSE) function of the FSO module.
The SLS and SMS functions activate the SSE function if the motor speed reaches a trip
limit during monitoring. The FSO module can activate the SSE function in internal fault
situations.
Index Name
SSE.13 SSE function
SSE.14 SSE monitoring
method
SSE.15 SSE delay for STO
Example value Description
Immediate STO or Sets the type of the SSE function.
Emergency ramp
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.52), it activates the
STO function. SAR0 parameters define the
deceleration ramp (for more information,
see the FSO module user's manual).
For the +Q965 option, ABB has set this
parameter to value Immediate STO at the
factory. Adjust the default value when ne-
cessary.
Note: The default value after factory reset
is Emergency ramp. Always check this
parameter after factory reset.
Ramp or Time Sets the method used for the SSE emer-
gency ramp monitoring. This parameter is
relevant only if parameter SSE.13 SSE
function is set to Emergency ramp.
Ramp: SAR0 parameters define the emer-
gency ramp and monitoring limits (see
SAR0 ramp settings).
Time: Parameter 200.102 SAR0 ramp time
to zero defines the emergency ramp and it
is monitored with parameter SSE.15 SSE
delay for STO.
For the +Q965 option, ABB has set this
parameter to value Ramp at the factory.
Adjust the default value when necessary.
20000 ms Sets the SSE monitoring time after which
the FSO module activates the drive STO
function after the SSE request.
This parameter is relevant only if parameter
SSE.13 SSE function is set to Emergency
ramp, time monitoring is used (SSE.14 SSE
monitoring method = Time) and the motor
speed does not follow the ramp.
Note: This delay must be considered when
the total response time for the safety func-
tion is defined.