Bypass With Synchronizer With Degree Of Overlapping (P1260 = 1) - Siemens SINAMICS G150 Operating Instructions Manual

Functions, Monitoring, and Protective Functions
9.3 Extended functions
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.
9.3.2.1

Bypass with synchronizer with degree of overlapping (p1260 = 1)

Description
When "Bypass with synchronizer with degree of overlapping (p1260 = 1)" is activated, the
synchronized motor is transferred to the supply and retrieved again. During the changeover,
both contactors K1 and K2 are closed at the same time for a period (phase lock
synchronization).
A reactor is used to de-couple the drive converter from the line supply - the uk value for the
reactor is 10 (± 2) %.
Figure 9-12
Activation
The function with synchronizer with degree of overlapping (p1260 = 1) function can only be
activated using a control signal. It cannot be activated using a speed threshold or a fault.
482
K 1
M
~
Typical circuit diagram for bypass with synchronizer with degree of overlapping
K 2
Converter cabinet units
Operating Instructions, 03/2012, A5E03263466A