Siemens SINAMICS V20 Series Operating Instructions Manual page 66

Commissioning
5.6 Function commissioning
Parameter Boost type
P1312 Starting boost [%]
66
Description
This parameter applies a constant linear offset relative to P0305 (rated motor
current) to active V/f curve (either linear or quadratic) after an ON command
and is active until:
ramp output reaches setpoint for the first time respectively
•
setpoint is reduced to less than present ramp output
•
Range: 0.0 ... 250.0 (factory default: 0.0)
The voltage boost is only effective when accelerating for the first time
(standstill).
SINAMICS V20 Inverter
Operating Instructions, 07/2012, A5E03728167