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V7.00
24905_EDEBD
A0272-5019-1_EN
22
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 identified 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.