LG PDI Manuale Utente Scaricare il pdf (Pagina 39)

SETTING AND USING METHOD

ENGLISH

Operating condition display

LED condition display

- Power LED (Red): When on, it shows that the product is in operation.

- Communication LED (Green, Yellow)

: Central controller, 485 communication condition are displayed.

Green LED ON: Signal sent

Yellow LED ON: Signal received

- The wattmeter (gas meter) receives pulse (yellow): The connected wattmeter (gas meter) dis-

plays the pulse signal reception status.

When pulse signal is input, the LED blinks (once per pulse).

- When the power is connected initially, all LEDs are turned on.

- If the pulse signal receipt condition display LED is continuously ON, it could mean that there is a

short circuit between the two terminals. Please check.

(If you are using a mechanical gas meter, depending on when operation is stopped, the LED may

be on sometimes.)

Pulse signal receipt condition

485 communication condition

POWER

WHM

PPWRDB000

ODU

SELECT

WHM

CHECK

1,MFL67982907,영영 2017. 7. 13. 영영 1:14 Page 39

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LG PDI Manuale Utente Pagina 39