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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).
POWER
- 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.)
WHM
MENU
SELECT
PPWRDB000
WHM CHECK
ODU
SETTING AND USING METHOD
Pulse signal receipt condition
485 communication condition
39
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