Siemens SINAMICS S120 - Page 289

Vector control
5.22 Bypass
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
289
Figure 5-28 Circuit example, bypass with synchronization without overlap
Activation
The bypass function with synchronization without overlap (p1260 = 2) can only be activated
using a control signal. Activation using a speed threshold is not possible.
Parameter assignment
The following parameters must be set after the bypass function with synchronization without
overlap (p1260 = 2) has been activated.
Table 5- 4 Parameter settings for bypass function with synchronization without overlap
Parameter
Description
r1261.0 =
Control signal for contactor K1
r1261.1 =
Control signal for contactor K2
p1266 =
Setting the control signal
P1269[0] =
Signal source to provide the feedback signal of contactor K1
P1269[1] =
Signal source for contactor K2 feedback
p3800 = 1
Synchronization is activated.
p3802 = r1261.2
Synchronizer activation is triggered by the bypass function.
p3809 =
Setting of the phase setpoint for synchronizing the drive to the line supply