Technical documentation
Rev. 02
Reactive Factor Controller CX plus
73
16 Automatic distribution of switching operations
to steps
The CX plus automatically distributes the switching operations to all connected steps
of the same
size
. This is realised either via the switching cycle counters of the individual steps (default setting) or
via the operating hours of the individual steps.
16.1 Distribution of the switching operations via the switching cycles
If several steps of the same size are connected and the option “
Distribute the switching operations
steps via the operating hours of the individual steps
” is deactivated (SETUP/315 =
NO
), the
controller automatically distributes the switching cycles for these steps based on the switching cycle
counters, so that each of these steps has the same amount of switching operations (+/- 1).
Example:
Steps 5, 6 and 7 have the same step size.
If the steps 5 and 6 have
13 switching cycles
and the step 7 only
12 switching cycles
, the controller
will switch on step 7 first for the next switch-on in order to distribute the switching cycles evenly.
16.2 Distribution of the switching operations via the operating hours
If several steps of the same size are connected and the option “
Distribute the switching operations
steps via the operating hours of the individual steps
” is activated (SETUP/315 =
YES
), the
controller automatically distributes the switching operations for these steps based on the operating
hour counters of the individual steps, so that the operating hours for these steps are distributed
evenly.
Example:
Steps 5, 6 and 7 have the same step size.
If the step 5 was in operation for
2 h
, step 6 for
1 h
and step 7 for
3 h
, the controller will switch on step
6 first for the next switch-on in order to distribute the operating hours evenly.
NOTE:
The distribution of the switching operations in case of steps of the same size is only active in
the control algorithm “BEST-FIT”.
17 Automatic initialisation
!
CAUTION
The phase correction angle must be set depending on the connection of measuring voltage and
current, so that the measurement of the active and reactive power, the COS-PHI, the power factor
and the automatic identification of the step sizes works perfectly. This is a condition for a perfect
functioning of the control.
The automatic initialisation can identify the connection of the controller and automatically sets the
phase correction angle after a successful completion. The automatic initialisation also identifies,
