Comar Condensatori QSR4, User Manual

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QSR4
ELECTRONIC POWER FACTOR
REGULATOR (4 controlled bank)
User Manual MU 03.15.mmm rev.1
Cod. COMAR 381021
Products are selected to correspond to the mains power supply (options available listed in technical
specifications later in this manual)
General characteristics:

Large three digit display offers comfortable viewing and ease of operation.

Specialist measuring system works even when the current is distorted by the presence Harmonics.

Microprocessor controlled switching of up to four banks of capacitors to reach the target P.F.

Auto-diagnosis system process’s the information about the condition of the network and protects the
capacitors from peak voltages and extending their life.

The regulator is able to detect automatically the correct phasing of the C.T., it is not necessary to
ensure correct polarity connection as with many other Power factor regulators.
Pinout diagram
Warning
To ensure correct operation of this electronic P.F. regulator and correct functioning of its internal self test
routine, the regulator must be earthed. The guarantee does not cover problems arising from an incorrect
earth connection.
Powering on
When power is switched on, an internal self test routine is performed. The display shows the type of
regulator and then displays the installed s/w version.
Digital display
It is possible to read the value of P.F. and the working banks on the digital display. Normally the regulator
indicates the value of P.F., to read the working banks it is necessary to press simultaneously the “+” and “-
“buttons; the working banks are indicated with vertical lines adjacent to the ON and OFF legends.
If a power loss occurs, the digital display returns to read the value of P.F.
To return to the P.F. on the display press simultaneously the “+” and “-“buttons.
AUTOMATIC working
This is the standard condition when switching on the regulator. When the network is inductive (motors,
transformers, fluorescent lamps, etc), the led “Ind” is on and the regulator begins to connect capacitors
banks. If too many capacitors banks are connected, the led “Cap” will be on and the regulator will begin to
switch off banks. The preset PF value will be achieved when both led’s “Ind” and “Cap” are off.