CIRCUTOR computer PLUS-TF Series - Manual (Page 20)

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4.2 Energising the regulator.
 The device can be energised once the power supply and measuring cables have been connected.
 After energising the Computer plus unit and waiting for a start-up time of 10 seconds, the device will
start to display the values measured. Some information might not be coherent (cos

out of reasonable
margins, active power values with a negative sign, etc.). This is usually the result of incorrect
connections (current transformers connected to the incorrect phase or inverting S1-S2).
Any of these errors can be solved without changing the cables; simply enter the setup menu of the
device, select option Connection of Transformers V-I
(see section 7.3), or execute the “Plug and Play”
option (see section 7.2).
NOTE: If you connect the unit and it does not operate, remember that it must be put in the RUN mode
(section 7.3.9). In particular, this is essential when working with static capacitor banks, given their
fast operation, in order to avoid the connection of all capacitors when they are powered, causing an
accident due to an overcompensation.
4.3 Regulator settings.
ATTENTION:
The Computer plus TF-C and TF-CDI regulator is delivered with the outputs disabled as the default
factory settings. Therefore, when you connect the voltage and before adjusting the setup, do not
connect any capacitor step. If any capacitor is connected, set the Computer plus in the STOP status
(See Section 7.3.9) and adjust it in accordance with the instructions in Section 7.
When the regulator is installed on a CIRCUTOR capacitor bank, it has already been set-up and its
final loc
ation will only need you to select the “Plug & Play” option (see section 7.2).
If you are sure that the regulator has not been set-up and a capacitor connects, this indicates that
something is working incorrectly. In this case, check the settings in accordance with the instructions
in section 7.
Follow these steps to adjust the unit:
 Apply voltage to the unit and follow the set-up instructions in section 7.
 Configure the alarms according to your needs by following the instructions in section 8.
 If you have a communications network and you wish to integrate the PF compensation unit into the
SCADA Power Studio, follow the instructions in section 11.