First Use; Description Of The Connection Terminals; Steps For Connection; Turning Off - WEG AVR-A-OPT-06 400Hz Manual De Instalación, Operación Y Mantenimiento

12 FIRST USE

The AVR-A-OPT-06 Voltage Regulator should be handled by a properly trained technician. Before doing any connections
check that the regulator is appropriate for the alternator at hand. Check also the existing protections.

12.1 DESCRIPTION OF THE CONNECTION TERMINALS

E1: Sensing voltage (Low voltage).
AVR-A-OPT-06 AM/220M = 160 to 300Vac (Single phase).
E2: Sensing voltage (high voltage).
AVR-A-OPT-06 AM/220M = 320 to 600Vac (Single phase).
3: Power supply.
E3/4: Voltage supply, and reference (or common) of the regulator. Common also for inputs E1 and E2.
F+ e F-: Connection for alternator field.
: Connection for external adjustment potentiometer (Two terminals).
NOTES
1. It is recommended to use a multi-turn potentiometer.

12.2 STEPS FOR CONNECTION


Connect the wires coming from the alternator according to the description on 9 and the type of alternator to be used.

Before the alternator is turned on the primary mover should be started and run at rated speed.

The alternator should start without load. The potentiometer Vad for Voltage adjustment should be configured to the
minimum voltage to avoid alternator runaway in case of incorrect connections.

The Stb potentiometer for stability should be placed in the middle of its course. This potentiometer acts on the dynamic
response of the machine and does not affect normal steady state operation.

The U/F Potentiometer for adjustment of the U/F protection should be maintained with the factory configuration since all
units are tested and configured before leaving the factory. If there are problems starting the alternator with U/F actuated,
it can be configured during operation.

Turn on the start key. Field flashing should take less than 3 seconds. If there is not field flashing or if the fuse blows,
check item 16 before contacting the manufacturer.

After starting, regulate Stb stability Potentiometer, applying and taking out load until reaching the point where voltage
does not oscillate (or has the lowest oscillation) with load variation.

13 TURNING OFF

With the U/F protection properly configured, turning off the alternator is done by turning off the primary mover.
Automatic Voltage Regulator – AVR-A-OPT-06 400Hz l 21
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