ー
8
ー
2. Screen display related
Fault diagnosis
2-6. Pulse count does not enter properly
1. Intelligent Controller
1-1
Is the distribution group correctly set on the [Settings] →
[System Settings] → [Distribution group settings] screen?
Yes 1-2
No
Apply settings
1-2
Are you looking at the Cut off data display on the [Oper./
Status] → [Accumult/Distrib] → [Pulse acc.] screen?
(Are the dates (e.g. 08/01 - 08/31) displayed in the upper
right of the screen?)
Yes
Look at the
“Current
(calculating)”
display
No
1-3
1-3 When performing time slot totals calculation, is the displayed
time slot selection correct? (RglHour (RglHour 1 to 8) /
OutOfHours / SpcfdDay / AllHours)
Yes 2-1
No
Select the
correct time slot
2. Communication
adaptor
2-1
Is the wiring from the pulse meter correctly connected?
Is there a terminal mix-up, disconnection, open circuit, or
short circuit?
(Pi1 to Pi3 of the 27P terminal board on the MAIN board)
Pi1 (7, 8)
Pi2 (7, 9)
Pi3 (7, 10)
Yes 2-2
No
Correct wiring
2-2
Remove all the wiring of the pulse meter from the terminal
board, and use a wire, scrap of lead wire, or other
appropriate object to short-circuit the input parts (Pi1 to Pi3)
of the terminal board several times while looking at the [Pulse
acc.] screen of the Intelligent Controller. Does the number
of pulses increase correctly? (It may take several minutes to
update the display)
Yes
3-1
No
2-3
2-4
2-3 Replace MAIN board
2-4 If the distance between the pulse meter and the communication adaptor is 20 m or
more, please use a relay.
Even if the distance is within 20 m, please use a relay if you are concerned about the
effect of noise.
3. Pulse meter
3-1 Is the wiring to the communication adaptor correct?
Is there a terminal on the meter side with a disconnection,
open circuit, short circuit or the like?
Yes
3-2
No
Correct wiring
3-2 Is the signal line from the pulse meter definitely a no-voltage
a contact (relay contact)?
* There is polarity in the case of open collector output.
(Number 7 is positive, numbers 8, 9, 10 are negative)
Yes
3-3
No
Correct wiring
3-3 Remove the wiring from the terminal section, and short-
circuit the wires with each other several times while looking
at the [Oper./Status] → [Accumult/Distrib] → [Pulse acc.]
screen of the Intelligent Controller. Does the number of
pulses increase correctly?
(It may take several minutes to update the display)
Yes
3-4
No
Go back to 2-1
3-4 Is there a mistake in connecting the wattmeter and power
line, or the gas flow meter and fuel gas pipe?
Yes
3-5
No Reconstruct
them correctly
3-5 Is the power amount or gas flow rate per pulse for this model
of pulse meter larger than necessary, or is the setting larger
than necessary?
Yes
3-6
No
Change meter
model, or modify
settings
3-6 Investigate the main unit of the pulse meter
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