Lenze 9228E Manual do Utilizador descarregar pdf (Página 53)

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Parameter setting of the mains failure detection:

The following codes affect the drive properties in case of mains

failure:

C079

Proportional gain of the DC-bus voltage controller (V

-controller) (see

signal flow chart p.55)

C080

Integral-action component of the V

-controller

C228

Acceleration integrator for the set value of the DC-bus voltage

C229

Activation of mains failure detection

C229 = -1- : Mains failure detection activated

C236

setl

-controller).

Ater the detection of a mains fialure and the activation of the DC-bus

control, the value of C237 is the set value of the V

-controller

C237

This code indirectly determines the possible speed decrease during a

controller cycle.

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In drive configuration with several controllers and DC-bus

connection (one master drive and one or several slave

drives), the mains failure detection with DC-bus control may

only be activated for the master drive.

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Lenze 9228E Manual do Utilizador Página 53