Watanbe A5000 Series - Detailed Input and Output Functions; Specific Input Signal Units; Comparison Output Function; Analog Output Function

Instruction Manual for A5000 Series 3/12
3.3.9 Temperature Measuring Unit (TC)
3.3.10 Temperature Measuring Unit (RTD)
3.3.11 Frequency Measuring Unit (Open collector, logic, and magnet)
3.3.12 Frequency Measuring Unit (500 Vrms)
3.3.13 Strain Gauge Input Unit (Load cell)
3.3.14 Process Signal Measuring Unit
3.4 Comparison Output
1 2 3 4 5
Name Description
1 HI Positiveinputterminal
2 LO
3 +15V
No.
4
COM5
Commonterminal(groundingterminalfor
inputcircuit)
Negativeinputterminal
Poweroutputforsensor(positive)
0V Poweroutputforsensor(negative)
1 2 3
Name Description
1 HI Inputterminal
2 NC
3
No.
LO
Donotconnectthisterminal.
Inputterminal
1 2 3 4 5
Name Description
1 +SIG Positiveinputterminal
2 -SIG
3 +EXC
No.
4
COM5
Commonterminal(groundingterminalfor
inputcircuit)
Negativeinputterminal
Poweroutputforsensor(positive)
-EXC Poweroutputforsensor(negative)
1 2 3
Name Description
1 V-IN Positiveinputterminalfor1to5Vrange
2 A-IN
3
No.
LO
Positiveinputterminalfor4to20mArange
Negativeinputterminal
12 13 14 15 16 17 18 19
Name Description
12 LO-b LOoutputterminal(bcontact)
13 LO-c
14
No.
LO-a
CommonterminalforLOoutput
LOoutputterminal(acontact)
15 GO-c CommonterminalforGOoutput
16 GO-a
17 HI-b
GOoutputterminal(acontact)
HIoutputterminal(bcontact)
18 HI-c
19 HI-a
CommonterminalforHIoutput
HIoutputterminal(acontact)
3.5 Analog Output
3.6 Serial Communication
4. Components and their Functions
The front panel design of the A5000 series of unit meters differs depending on the
display unit selected. The names and functions of each unit are as shown below.
4.1 Multi-display Unit
24 25 26
Name Description
24 COM Commonterminalforanalogoutput
25 A-OUT
26
No.
V-OUT
Currentoutputterminal(4to20mA)
Voltageoutputterminal(1to5V,0to1V,
and0to10V)
20212223
Name Description
20 RXD(+)
RS-232C:transmission;
RS-485:Non-reverseoutput
21 TXD(-)
22
No.
NC
RS-232C:reception;
RS-485:Reverseoutput
Donotconnectthisterminal.
23 SG Commonterminalforcommunications
(2)(3)(4)(5)
Modularjack:
RJ-14(6P4C)
(1) Use12to28AWGwireforthepower,input(exceptforrange26),
externalcontrol,andcomparisonoutputconnectors.
(2) Tightenthescrewsforthepower,input(exceptforrange26),external
control,andcomparisonoutputconnectorstoatorqueof0.5to0.6Nm.
(3) Use16to28AWGwirefortheanalogoutputconnector.
Tightenthescrewsofanalogoutputconnectortoatorqueof0.22to
0.25Nm.
(4)
Caution
!
Eachwiringexceptapowersupplyisgivenasunderfull-length30m.
(5)
If30misexceeded,itwillbecomeoutofthescopeofEN/IECstandard.
(1)
(2)
(3)
(4)
(6) (7) (8) (9)
(5)
No. Name
MainFunctions
Duringmeasurement Duringparametersetup
(1) Maindisplay Indicatesthemeasuredvalue.
IIndicatesinformationonthe
parametertobeset.
Judgment
indicators
HI
(2) GO
LO
Indicatestheresultofjudgmentand
turnsonifthemeasuredvalue>HI
judgmentvalue.
Indicatestheresultofjudgmentand
turnsonifLOjudgmentvalue≦the
measuredvalue≦HIjudgmentvalue.
Indicatestheresultofjudgmentand
turnsonifthemeasuredvalue<LO
judgmentvalue.
(3)
Function
indicators
ME Turnsonif“digitalzerobackup”ison.
PH
Turnsonif“peakhold/valleyhold/
peak-valleyhold”ison.
Turnsonif“digitalzero”ison.DZ
RE
Turnsonifremotecontrolisbeing
performedthroughRS-232CorRS-
485interface.
(4) Sub-display1
IndicatestheHIsidejudgmentvalue.
Indicatestheiteminthemaximum/
minimum/(maximum-minimum)/input
valuemonitoringmode.
IndicatestheLOsidejudgmentvalue.
Sub-display2(5)
Indicatesinformationontheitemin
themaximum/minimum/(maximum-
minimum)/inputvaluemonitoringmode.
Indicatestheitemtobeset.
(6) Enterkey
PressingtheEnterandModekeys
togetherchangestotheparameter
settingmode.
PressingtheEnterandIncrementkeys
togetherchangestothemaximum/
minimum/(maximum-minimum)/input
valuemonitoringmode.
Switchesfromthemaximum/
minimum/(maximum-maximum/
minimum/(maximum-minimum)/input
valuemonitoringmodetothe
comparativejudgmentreadingmode.
Returnstothemeasurement
mode.
1 2 3
Name Description
1 + Positive terminal for thermocouple
2 NC
3
No.
-
Do not connect this terminal.
Negative terminal for thermocouple
Connectionofthree-wiresensor
1 2 3
Name Description
1 A Resistancesensorwire
2 B
3
No.
C Eliminationofwireresistance
Resistancesensorwire
Theanalogoutputatthetimeofaburnoutbecomes+side
atthetimeofAorBdisconnection,andissetto0Vor1V,
and4mAatthetimeofCdisconnection.
WhenAorBisdisconnection,itisdisplayedasOL,andwhen
Cisdisconnection,itisdisplayedas----.