2�- PRODUCT DESCRIPTION
The Controller MASTER control VAR FAST reactive energy regulator is a unit that measures
the grid cosine and regulates capacitor connection and disconnection in order to correct it. It
also calculates and displays the main electrical parameters of balanced or unbalanced sin-
gle-phase and three-phase networks. The measurement is taken in RMS, via four AC voltage
inputs and three current inputs.
There are 2 versions of the unit, according to the number of output relays:
Controller MASTER control VAR FAST 6, with six optoMOS relay outputs.
Controller MASTER control VAR FAST 12, with twelve optoMOS relay outputs.
The unit features:
- 5 keys that can be used to browse the various screens and program the unit.
- 4 indicator LEDs: CPU, ALARM, FAN and KEY PRESSED.
- LCD display, amber backlit, 70x60.7 mm display for viewing all the parameters.
- 2 digital inputs, for selecting the target cosine (4 target cosines).
- 2 digital outputs and 1 relay output, fully programmable as alarms.
- 1 relay output, specic for the fan.
- 6 optoMOS relay outputs (Controller MASTER control VAR FAST 6 model) or 12
optoMOS relay outputs (Controller MASTER control VAR FAST 12 model) for regu-
lating the cos φ by means of capacitors.
- RS-485 communications, MODBUS RTU©.
- CPC-NET communications port.
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