13
P.01
- The value of the primary current transformer. Example: with CT 800/5 set 800. If set to OFF, after the power-up the device will
prompt you to set the CT and allow direct access to this parameter.
P.02
- Value of the secondary of the current transformers. Example: with CT 800/5 set 5.
P.03
– It defines on which phase the device reads the current signal. The wiring of current inputs must match the value set for this
parameter. Supports all possible combinations of parameter P.05.
P.04
-
Reading
the
connection
polarity
of
the
CT.
AUT
= Polarity is automatically detected at power up. Can only be used when working with only one CT and when the system has no
generator
device.
Dir
= Automatic detection disabled. Direct connection.
Inv
= Automatic detection disabled. Reverse wiring (crossover).
P.05
- Defines on which and on how many phases the device reads the voltage signal. The wiring of voltage inputs must match the
setting for this parameter. Supports all possible combinations of parameter P.03.
P.06
- Value in kvar of the smallest step installed (equivalent to the step weight 1). Rated power of the capacitor bank provided at the
rated voltage specified in P.07 and referred to the total of the three capacitors for three-phase applications.
P.07
- Rated plate capacitor, which is delivered in specified power P.06. If the capacitors are used to a voltage different (lower) than
nominal, the resulting power is automatically recalculated by the device.
P.08
- Working frequency of the system:
Aut
=
automatic
selection
between
50
and
60
Hz
at
power
on.
50Hz
=
fixed
to
50
Hz.
60Hz
=
fixed
to
60
Hz.
Var
= variable, measured continuously and adjusted.
P.09
- Minimum time that must elapse between the disconnection of one step and the subsequent reconnection both in MAN or AUT
mode. During this time the number of the step on the main page is blinking.
P.10
- Connection sensitivity. This parameter sets the speed of reaction of the controller. With small values of P.10 the regulation is fast
(more accurate around the setpoint but with more step swithchings). With high values instead we‟ll have slower reactions of the
regulation, with fewer switchings of the steps. The delay time of the reaction is inversely proportional to the request of steps to reach the
setpoint:
waiting
time
=
(sensitivity
/
number
of
steps
required).
Example
: setting the sensitivity to 60s, if you request the insertion of one step of weight 1 are expected 60s (60/1 = 60). If instead
serve a total of 4 steps will be expected 15s (60/4 = 15).
P11 ... P18
- Function of output relays 1 ... 8:
OFF
= Not used .
1 .. 32
= Weight of the step. This relay drives a bank of cpacitors which power is n times (n = 1…32) the smallest power defined
with parameter P.06.
ON
= Always on.
NOA
= Alarm normally de-energized. The relay is energized when any alarm with the
Global alarm
property arises.
NCA
= Alarm normally energized. The relay is de-energized when any alarm with the
Global alarm
property arises.
FAN
= The relay controls the cooling fan.
MAN =
Relay is energized when device is in MAN mode.
AUT =
Relay is energized when device is in AUT mode.
A01 ... A13
= The relay is energized when the alarm specified is active.
P.19
-
Setpoint
(target
value)
of
the
cosphi.
Used
for
standard
applications.
P.20
- Language of scrolling alarm messages.
