WEG AVR-A-OPT-03 Installation, Operation And Maintenance Manual page 18

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5. The 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 alternatorwith U/F actuated, it can
be configured during operation.
6. Turn on the start key. Field flashing should take less than 3 seconds. If there is not field flashing or if the fuse blows,
consult item 28 before contacting the manufacturer.
7. After starting, regulate stability Potentiometer, applying and taking out load until reaching the point where voltage does
not oscillate (or has lowest oscillation) with load variation.
14 CONNECTION FOR AVR-A-OPT-03 AND AVR-A-OPT-03/B
14.1 CONNECTION WITH AUXILIARY COIL
GERADOR
GENERADOR
GENERATOR
EXCITER
CAMPO DA EXCITATRIZ
FIELD
CAMPO DE LA EXCITATRIZ
EXCITER FIELD
OK
JR
U/F
Stb
Vad
JHz
OK
JR
¹ Item not supplied by WEG;
² If there is no Potentiometer connected, keep terminals
³ 10A/250Vac switch to turn ON/OFF the regulator;
JR Jumper – Sensing voltage selection (pins 1-2 = 160 to 300Vac, pins 2-3 = 320 to 600Vac).
4
18
l Analog Voltage Regulator AVR-A-OPT-03
CHAVE LIG./DESL.
ON/OFF
LLAVE LIG./DESL.
SWITCH
ON/OFF SWITCH
BOBINA AUXILIAR
AUXILIARY
BOBINA AUXILIAR
COIL³
AUXILIARY COIL
WRGA-01
AVR-A-OPT-03
WRGA-01/B
AVR-A-OPT-03/B
Configuration for 160
to 320V use jump on
4
pins 1 and 2
Sensing Voltage 160 to 300Vac and 320 to 600Vac.
POTENCIOMETRO DE AJUSTE
EXTERNO DE TENSÃO (5k
POTENCIOMETRO DE AJUSTE
EXTERNO DE TENSION (5k
EXTERNAL ADJUSTMENT
POTENTIOMETER (5k
OK
JR
U/F
Stb
Vad
JHz
OK
JR
short-circuited;
EXTERNAL
ADJUSTMENT
/3W)
POTENTIOMETER
/3W)
(5k/3W) ¹ ²
/3W)
Configuration for 320
to 600V use jumper on
4
pins 2 and 3