Siemens SINAMICS S120 Function Manual page 178

Vector control
4.22 Bypass
Figure 4-30
Activating
The bypass function with synchronization without overlap (p1260 = 2) can only be activated
using a control signal. It cannot be activated using a speed threshold or a fault.
Example
The following parameters must be set after the bypass function with synchronization without
overlap (p1260 = 2) has been activated.
Table 4- 10
p1266 =
p1267.0 = 1
p1267.1 = 0
P1269[0] =
P1269[1] =
p3800 = 1
p3802 = r1261.2
178
Circuit example, bypass with synchronization without overlap
Parameter settings for bypass function with synchronization without overlap
Parameter
Control signal setting when p1267.0 = 1
Bypass function is initiated by the control signal.
Signal source to provide the feedback signal of contactor K1
Signal source for contactor K2 feedback
The internal voltages are used for synchronization.
Synchronizer activation is triggered by the bypass function.
Description
Function Manual, (FH1), 10/2008, 6SL3097-2AB00-0BP5
Drive functions