KBR multicomp D6 7 Series - Functions of the Controller in the secureC Safety and Maintenance Concept; 4.1 Stage Resonance Frequency Monitoring

V7.00
24905_EDEBDA0272-5019-1_EN
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Range of functions
4 Functions of the controller in the secureC safety and
maintenance concept
CAUTION
These functions are available with the current measuring module multisio D2-4CI and the
energy measuring module multimess D4!
Information on password protection of secureC can be found in chapter 5.13.2.3 Service
submenu.
4.1 Stage resonance frequency monitoring
A stage is only locked from further use if it enters the critical range (resonance frequency)
due to loss of capacitance. The stage will be identied in the display by a X.
CAUTION
You can unlock the stage in the Mode submenu of the
Stage administration menu.
If the stage is locked (loss of capacitance), do NOT activate the learning mode but ex-
change the defective capacitor!
1. Evaluating the resonance frequency:
a) Detuning 5.5%, 7% or 8% (5th harmonic is critical) If resonance frequency is below
111% of the 5th harmonic, the warning threshold is exceeded.
If resonance frequency is below 107 % of the 5th harmonic, the alarm threshold is
exceeded.
b) Detuning 12.5% or 14% (3rd harmonic is critical) If resonance frequency is below
104% of the 3rd harmonic, the warning threshold is exceeded.
If resonance frequency is below 103 % of the 3rd harmonic, the alarm threshold is
exceeded.