Siemens SINAMICS G120C Operating Instructions Manual page 195

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 6- 30
Parameter
p1138
p1139
Example
In the following example, the higher-level control sets the ramp-up and ramp-down times of
the inverter via PROFIBUS.
Figure 6-28
Preconditions
● You have commissioned the communication between the inverter and the control system.
● Free telegram 999 has been set in the inverter and in your higher-level control system.
See also section: Extend telegrams and change signal interconnection (Page 161).
● The controller sends the scaling value to the inverter in PZD 3.
SINAMICS G120C converter
Operating Instructions, 07/2015, FW V4.7 SP3, A5E34263257B AC
Parameters for setting the scaling
Description
Up ramp scaling (factory setting: 1)
Signal source for scaling the acceleration ramp.
Down ramp scaling (factory setting: 1)
Signal source for scaling the deceleration ramp.
Example for changing the ramp-function generator times in operation
Advanced commissioning
6.4 Setpoint calculation
191