V7.00
24905_EDEBDA0272-5019-1_EN
55
NOTE
The Q-rule and cosine-phi adjustment can only be activated if the following is selected
in the menu: Extras => commissioning => stage => stage => para => discharge time =>
operating cycle => system type => special -EZA.
The energy recovery display (generator symbol) is not used for the Special-EZA system
type, as CosPhi2 is not active here.
It is not only possible to program a xed target cosφ on the device; it can also be
switched over by means of a digital input or changed by means of an analog input. There
is also an option to change the target cosφ through a voltage curve or an active power
curve.
In the menu Commissioning, submenu Target cosφ, after pressing the F2 key (Para), it
is possible to select how the target cosφ should be adjusted. After the mode has been
changed, all parameters must be checked and corrected if required.
The following modes can be selected:
DI 3 φ (change by digital input)
AI 3 φ (change by analog input)
U 3 φ (change by voltage curve)
P 3 φ (change by active power curve)
o The function is deactivated, i.e. the device is working with the
value programmed as target cosine1
NOTE
In addition, in the Commissioning menu, submenu Target cosφ, (Q) can be activated
by pressing the F3 key, so that a target reactive power value (in relation to Prated, rated
active power of the power plant) must be reached instead of the target cos-phi (Q-con-
trol). After the mode has been changed, all parameters must be checked and corrected if
required.
System operation
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