Lenze 9200 Series Operating Instructions Manual page 55

• 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
signal flow chart p.55)
C080 Integral-action component of the V z -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 V (V -controller).
setl z
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 z -controller
C237 This code indirectly determines the possible speed decrease during a
controller cycle.
• 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.

-controller) (see
z
51