Siemens SINAMICS G120 Operating Instructions Manual page 301

Note
Hibernation mode after switching on the inverter
After switching the inverter on, a waiting period starts in the inverter. The waiting period is at
most the following times:
• p1120 (ramp-up time)
• p2391 (hibernation mode delay time)
• 20 s
If the motor does not reach the hibernation mode start speed within this wait time, the
inverter activates the hibernation mode and switches off the motor.
Additional setting options are provided in the List Manual in function block diagram 7038 and
in the associated parameter descriptions.
If you want to prevent frequent activation and deactivation, before deactivation you still have
to set a short speed boost. The boost is deactivated with p2394 = 0.
To avoid tank deposits, particularly where liquids are involved, it is possible to exit the
hibernation mode after an adjustable time (p2396) has expired and switch to normal
operation.
The settings required for the respective variant can be found in the following tables.
Activating the hibernation mode with setpoint input via the internal technology controller
With this operating mode you have to set the technology controller as the setpoint source
(p2200) and use the output of the technology controller as the main setpoint (p2251). The
boost can be deactivated.
Figure 6-51
Converter with CU230P-2 Control Units
Operating Instructions, 04/2015, FW V4.7 SP3, A5E34257946B AB
Hibernation mode using the technology setpoint as main setpoint with boost
Advanced commissioning
6.7 Application-specific functions
301