CIRCUTOR computer MAX f Series - Manual (Page 15)

M066B01-03-15A computer MAX 6f 12Vdc
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5.5 Configuration of the connection and reconnection system delays:
To adjust this parameter, press the buttons until the cursor points to the option and then
press
This parameter establishes the unit's actuation times. The adjustment time, Tc, establishes the delay to
connect or disconnect subsequent stages. The unit enables adjusting the Tc within the range of 2 to 99
network cycles. The time of the network cycle depends on the frequency, for example, for a 50 Hz
network frequency, one cycle equals 20 ms. Note that this is the time the capacitors need to discharge.
By default the parameter comes configured for 5 cycles.
5.6 Selection of the number of stages.
To adjust this parameter, press the buttons until the cursor points to the option and then
press
The option enables programming the number of outputs the regulator will have. According to the
computer MAX 6f 12Vdc version, up to 6 can be configured.
5.7 Selection of the phase between voltage and current.
To adjust this parameter, press the buttons until the cursor points to the option and then
press
This parameter can be used to adapt the regulator to the different connection options of the power supply
and measuring cables, and the cables of the current transformer to the phases of the three-phase
system. Fig. 4.2 and 4.3 show the default configuration. That is, the current transformer is on phase L1
and the voltage measure between phases L2 (terminal C) and L3 (terminal D). It is often hard to check
whether the unit has been wired like this or not, and so one of the T1 to T6 options shown in Table 5.3
must be chosen to cater to this situation. The selection of one of these options must be made in the
installation, assuming that, during adjustment, it is consuming inductive reactive power with an inductive
cos
ϕ
between 0.7 and 1. It is necessary to keep testing options until the screen displays a cos
ϕ
between
0.7 and 1
Table 5-3.- Phase selection options in the computer MAX 6f v12dc
Screen
Phase shift V-I to
cos
ϕϕϕϕ
= 1
V Measurement
phases
CT Connection Phase
T1 30º L3-L2 L3
T2 270º L3-L2 L1
T3 150º L3-L2 L2
T4 210º L3-L2 L3 (Inverted Transformer)
T5 90º L3-L2 L1 (Inverted Transformer)
T6 330º L3-L2 L2 (Inverted Transformer)
5.8 Primary current configuration of the current transformer (CT).
The adjustment for this parameter is selected at the end of the menu by marking the option .
This is indicated by the blinking red LED. The primary current of the CT must be configured in this
parameter, in accordance with the CT that has been installed for measuring the current of the installation.
The adjustment range is 0 to 999, which with the x10 factor allows a transformer primary of up to 9990 A.
The CT secondary comes with a default configuration of 5 A