ABB ACS880-17, Руководство пользователя

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Parameter settings 41

Changing the stop category from 0 to 1
Stop category 0 is the default setting. This category uses the STO function of the FSO
module. Stop category 1 uses the SS1 function of the FSO module.
SS1.15 SS1-r ramp zero
speed delay for STO
0 ms Sets an extra delay time for the drive STO activation at the zero
speed in the SS1 function.
With this parameter, the FSO module delays the STO activation
so that the drive is able to reach the axle zero speed before the
FSO module activates the STO function.
The delay counter starts when the motor speed reaches the
zero speed limit (parameter
FSOGEN.51 or FSOGEN.52 ). After
this delay has elapsed, the FSO module activates the drive STO
function. You can use this parameter when the motor rotates a
heavy load (high inertia).
Note : The FSO module activates the drive STO immediately if
the drive stops modulating before the delay has passed (that is,
the motor actual speed reaches 0 rpm).
Adjust the default value when necessary.
SAR1 ramp settings
200.112 SAR1 ramp time to
zero
2000 ms Sets the target time for the stop ramp SAR1 that is used in the
SS1 function. Adjust the default value when necessary.
Target time = The time in which the drive decelerates the
motor(s) from speed
200.202 SAR speed scaling to zero.
Note: With value 0 ms , the drive uses the emergency stop ramp
set by drive parameter 23.23 (see section SS1 ramp
parameters below). Also in this case, the FSO module monitors
the actual ramp (ramp monitoring or time monitoring).
200.202 SAR speed scaling 1500 rpm Sets a speed value that the FSO module uses as a reference
point in ramp parameter calculations (see SAR1 ramp
parameters
200.112, SARx.21 , SARx.22 and SARx.02 ).
Adjust the default value when necessary.
SARx.02 SAR initial allowed
range
100 ms Sets the initial allowed range for the SAR0/SAR1 ramp. This
parameter moves the location of the maximum monitoring ramp
forward on the time axis, when monitoring is started. The slope
of the ramp stays the same as defined with parameters
200.202
and SARx.22 . For more information, see the FSO module
user’s manual.
Time monitoring: This value has no effect in the operation.
Ramp monitoring: Adjust the default value when necessary.
SARx.21 SAR1 min ramp time
to zero
1000 ms Sets the minimum ramp time for the SAR1 ramp monitoring.
Time monitoring: This value has no effect in the operation.
Ramp monitoring: Sets the minimum stop ramp time for the
emergency stop. Adjust the default value when necessary.
Note : With value 0 ms , the minimum ramp is not monitored.
SARx.22 SAR1 max ramp time
to zero
3000 ms Sets the maximum ramp time for the SAR1 ramp monitoring.
Time monitoring: This value has no effect in the operation.
Ramp monitoring: Sets the maximum stop ramp time for the
emergency stop. Adjust the default value when necessary.
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 : This feature is not in use.
In this manual, we assume that you do not use a brake. If you
do, you must take care of its on/off control by the FSO module
and change this and other settings. See the FSO module user’s
manual.
Index Name Example
value Description