V7.00
24905_EDEBD
A0272-5019-1_EN
98
The limit of the harmonic switch-off refers on one hand to the total of all measuring
voltage harmonics (Lim harm. U HD), on the other hand, limits may be assigned for each
harmonic separately (3rd to 13th harm. U). The programming range lies between 0 and
99%.
Furthermore it can be set here whether the alarm relay should switch in case a limit is
violated, stages should be switched off, or both. In addition, harmonics monitoring can
be disabled here.
The Reset menu item offers various methods of resetting the programmed controller
parameters. This has the advantage that not all programmed parameters are deleted at
the same time, but only a specific range.
The following reset options are available:
1.
Commissioning - Reset:
Here the parameters are reset to commissioning status, i.e.
error status and current transformer ratio are deleted.
2.
Reset of the limits:
For Ph/N and Ph/Ph voltage, voltage harmonics and induced
current monitoring.
3.
Reset of extreme values:
All established maximum and minimum values are deleted
together (for overview of maximum and minimum values, see list).
4.
Reset of stage parameters:
The stage parameters stage power, cabinet No., discharge
time, detuning, operating cycle alarm limit, system type, special outputs fans/alarm
relays are deleted together for all stages.
5.
Reset module parameters:
All scanned temperature, relay and induced current mea-
surement modules will be deleted.
6.
Reset to default settings:
The programmable parameters are reset to the default
settings. A list of the settings can be found in the Technical Data.
7.
Reset of measuring parameters:
The transformer settings for current and voltage,
the attenuation coefficients U, I and Q, the transformer setting for the induced current
measuring module and the energy measuring module, the rated voltage and the rated
frequency will be reset.
System operation