Siemens SINAMICS G120D Operating Instructions Manual page 128

Setting functions
8.4 Setpoint calculation
Basic ramp-function generator
When compared to the extended ramp-
function generator, the basic ramp-
function generator has no rounding
times.
Table 8- 14
Parameter
p1115 = 0
p1120
p1121
p1135
Changing the ramp-up and ramp-down times in operation
The ramping up and down time
of the ramp-function generator
can be changed during
operation. The scaling value
can come e.g. from the field
bus.
Table 8- 15
Parameter
p1138
p1139
128
Parameters for setting the ramp-function generator
Description
Ramp-function generator selection (factory setting: 1)
Select ramp-function generator:
0: Basic ramp-function generator
1: Extended ramp-function generator
Ramp-function generator, ramp-up time (factory setting: 10 s)
Accelerating time in seconds from zero speed up to the maximum speed p1082
Ramp-function generator, ramp-down time (factory setting: 10 s)
Braking time in seconds from the maximum speed down to standstill
OFF3 ramp-down time (factory setting: 0 s)
The quick stop (OFF3) has its own ramp-down time.
Parameters for setting the scaling
Description
Up ramp scaling (factory setting: 1)
Signal source for scaling the up ramp.
Down ramp scaling (factory setting: 1)
Signal source for scaling the down ramp.
Converter with control units CU240D-2
Operating Instructions, 04/2014, FW V4.7, A5E34262100B AA