WEG GRT7-TR1 Manual De Instalación, Operación Y Mantenimiento página 18

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1º. Mount circuit as per diagram below;
2º. With small screwdriver, turn trimpots Vad and U/F counter-clockwise until the end of stroke;
3º. Turn on circuit breaker:
4º. Turn slightly the trimpot Vad clockwise (the lamp must shine after certain position of trimpot)
5º. With lamp on, turn slightly the trimpot Vad counter-clockwise (after certain position of trimpot, the lamp must turn off);
6º. Turn off the circuit breaker.
18 | Automatic Voltage Regulator - GRT7-TR1