Vector control 4.20 Bypass

A reactor is used to de-couple the drive converter from the line supply - the uk value for the reactor is 10% +/- 2%.

1HWZRUN

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Figure 4-25 Circuit example: Bypass with synchronization with overlap

Activating

The bypass function with synchronization with overlap (p1260 = 1) 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 with overlap (p1260 = 1) has been activated.

Table 4-8

Parameter setting for bypass function with synchronization with overlap

 

 

 

 

Parameter

Description

p1266

=

 

Control signal setting when p1267.0 = 1

p1267.0 = 1

 

Bypass function is initiated by the control signal

p1267.1 = 0

 

 

P1269[0] =

 

Signal source to provide the feedback signal of contactor K1

P1269[1] =

 

Signal source for contactor K2 feedback

p3800

= 1

 

For synchronization, the internal voltages are used.

p3802

= r1261.2

Synchronizer activation is triggered by the bypass function.

Drive Functions

161

Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4

Page 161
Image 161
Efficient Networks S120 manual Example, Parameter Description, 1HWZRUN RQYHUWHUZLWK9ROWDJH, 5HDFWRU