Panasonic CZ-256ESMC3 Technical Data Manual

Also see for CZ-256ESMC3: Quick reference Operating instructions

ー 8 ー2. Screen display relatedFault diagnosis2-6. Pulse count does not enter properly1. Intelligent Controller 1-1 Is the distribution group correctly set on the [Settings] →[System Settings] → [Distribution group settings] screen?Yes 1-2No Apply settings1-2 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 upperright of the screen?)Yes Look at the“Current(calculating)”displayNo 1-31-3 When performing time slot totals calculation, is the displayedtime slot selection correct? (RglHour (RglHour 1 to 8) /OutOfHours / SpcfdDay / AllHours)Yes 2-1No Select thecorrect time slot2. Communicationadaptor2-1 Is the wiring from the pulse meter correctly connected?Is there a terminal mix-up, disconnection, open circuit, orshort circuit?(Pi1 to Pi3 of the 27P terminal board on the MAIN board)Pi1 (7, 8)Pi2 (7, 9)Pi3 (7, 10)Yes 2-2No Correct wiring2-2 Remove all the wiring of the pulse meter from the terminalboard, and use a wire, scrap of lead wire, or otherappropriate object to short-circuit the input parts (Pi1 to Pi3)of the terminal board several times while looking at the [Pulseacc.] screen of the Intelligent Controller. Does the numberof pulses increase correctly? (It may take several minutes toupdate the display)Yes 3-1No 2-32-42-3 Replace MAIN board2-4 If the distance between the pulse meter and the communication adaptor is 20 m ormore, please use a relay.Even if the distance is within 20 m, please use a relay if you are concerned about theeffect 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 3-2No Correct wiring3-2 Is the signal line from the pulse meter definitely a no-voltagea contact (relay contact)?* There is polarity in the case of open collector output.(Number 7 is positive, numbers 8, 9, 10 are negative)Yes 3-3No Correct wiring3-3 Remove the wiring from the terminal section, and short-circuit the wires with each other several times while lookingat the [Oper./Status] → [Accumult/Distrib] → [Pulse acc.]screen of the Intelligent Controller. Does the number ofpulses increase correctly?(It may take several minutes to update the display)Yes 3-4No Go back to 2-13-4 Is there a mistake in connecting the wattmeter and powerline, or the gas flow meter and fuel gas pipe?Yes 3-5No Reconstructthem correctly3-5 Is the power amount or gas flow rate per pulse for this modelof pulse meter larger than necessary, or is the setting largerthan necessary?Yes 3-6No Change metermodel, or modifysettings3-6 Investigate the main unit of the pulse meter