Siemens SINAMICS G130 Operating Instructions Manual page 454

Functions, monitoring, and protective functions
9.3 Extended functions
NOTICE
Device damage due to phase shift in the bypass circuit
Changing the phase sequence or the direction of rotation using p1820/p1821, without
physically adapting the phase cables results in incorrect synchronization, which can result
in mechanical damage to the plant.
• Ensure that no different phase sequence occurs in the bypass circuit between line
• If you change the direction of rotation via p1820/p1821, adapt the phase lines
Precondition
The bypass function is only possible for encoderless closed-loop speed control (p1300 = 20)
or V/f control (p1300 = 0...19) and when an induction motor is used.
Establishing the bypass function
The bypass function is part of the "technology controller" function module that can be
activated by running the commissioning Wizard. Parameter r0108.16 indicates whether the
function module has been activated.
454
operation and converter operation.
accordingly.
Inverter chassis units
Operating Instructions, 07/2016, A5E00331449A