Bypass Without Synchronization - Siemens Sinamics S120 Function Manual

Figure 4-32
Activation
The bypass function with synchronization without overlap (p1260 = 2) can only be activated
using a control signal. Activation using a speed threshold or a fault is not possible.
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
p3809 =
4.25.3

Bypass without synchronization

Description
When the motor is transferred to the line supply, contactor K1 is opened (after the drive
converter pulses have been inhibited); the system then waits for the motor de-excitation time
and then contactor K2 is closed so that the motor is directly connected to the line supply.
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
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.
Setting of the phase setpoint for synchronizing the drive to the line supply
Description
Vector control
4.25 Bypass
209