Watlow Series 922 User's Manual - Heaters Sensors Controls

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Event BoardEvent Output Option "B" and "K", Solid State Relay0.5A @ 24V~ (VAC) Min., 253V~ (VAC) Max.NOTE: Checkmodel number forappropriatediagram.Model #A007-1732-XXBXWith RC Suppression.Minimum OFF-stateimpedance 20K .Model #A007-1732-XXKXWithout RC Suppression.Minimum OFF-stateimpedance 31M .Event/Alarm OutputsFigure 28 -Event Option "B"and "K," Solid StateRelayEV8EV7EV6161514131211Load 8Load 7Load 6EV5109Load 5EV487Load 4EV365Load 3EV2AL2EV1AL14321Load 2Load 1L2L1Load PowerFigure 28a -Event Option "C"Switched DC”CAUTION: If ACload is connected to"C" option output,damage may occurto event board andto 922.Event Output Option "C", Switched DCModel #A007-1732-XXCXEV8EV7EV6EV5EV4EV3EV2AL2EV1AL116 -15 +14 -13 +12 -11 +10 -9 +8 -7 +6 -5 +4 -3 +2 -1 +3-32VÎ(VDC)SSR3-32VÎ(VDC)SSR34 WATLOW Series 922 User's Manual How to Install and Wire, Chapter 4
Single Phase 120VAC ApplicationWiring ExampleWARNING:Install High or low temperature limit control protection in systems where anovertemperature or undertemperature fault condition could present a fire hazardor other hazard. Failure to install temperature limit control protection where apotential hazard exists could result in damage to equipment and property, andinjury to personnel.Wet Bulb RTDDry Temp. RTDL2Cooling Output(internal to oven)L1L1120 VACControlPowerL2Earth GroundFigure 29 -Series 922 SystemWiring Example.L2L1L2L1L1L1LoadPowerFusesHumidifierDehumidifierMercuryRelay forControlFuseControl OutputL1 High LimitControl PowerL2 120 VACIntegral SetpotLoadPowerL2L2Dry Temp.RTD SensorHeaterCoilHigh LimitMechanicalContactorIndicator ON whenlimit tripsL2L1FuseNormally OpenMomentarySwitch140A-16XX-6000High Limit Control(-) (+)TC InputOvenLimit SensorWet BulbRTD SensorWARNING: WithWatlow mercuryrelays, load musthave a unity powerfactor. For RESIS-TIVE LOADS ONLY.How to Install and Wire, Chapter 4 WATLOW Series 922 User's Manual 35
Page 1 and 2: Series 922User's ManualMicroprocess
Page 3 and 4: Table of ContentsContentsPageItem7
Page 5 and 6: FiguresContentsPage Item Figures7 S
Page 7 and 8: Chapter 1Starting OutStarting out w
Page 9 and 10: How to Open the 922OpeningBefore go
Page 11 and 12: 922 OverviewOverview of the Three O
Page 13 and 14: Actual and Alphanumeric Display Are
Page 15 and 16: Sample ProgramEnter Real TimeFirst,
Page 17 and 18: Running Your ProgramSample Program1
Page 19 and 20: The WAITFOR StepSample ProgramThe l
Page 21 and 22: Chapter 4Install/WireHow to Install
Page 23 and 24: DefinitionsGround Loop - A conditio
Page 25 and 26: Line Filtering Configurations for C
Page 27 and 28: 0.92"(23 mm)7.8"(197 mm)6.0"(152 mm
Page 29 and 30: How to Wire the Series 922Wire Inpu
Page 31 and 32: Input Option "4", Terminals 1 - 8Wi
Page 33: Use the following figures to learn
Page 37 and 38: TuningFor optimum control performan
Page 39 and 40: Event OutputsAnother feature of the
Page 41 and 42: Nested LoopJumploopsA "Nested" loop
Page 43 and 44: Table 8 -SYSTEM Prompts andDescript
Page 45 and 46: SETUP MenuWhile in the HOLD mode, p
Page 47 and 48: SETUP MenuTable 9 continuedPrompt D
Page 49 and 50: Shaded parameters may not appear on
Page 51 and 52: DB1 ( )PB1C ( )RS1C ( )RT1C ( )CT1C
Page 53 and 54: SETUP MenuThe cooling cycle time fo
Page 55 and 56: SETUP MenuThis parameter determines
Page 57 and 58: PROGRAM MenuPROGRAM MenuFrom the Pr
Page 59 and 60: Shaded parameters may not appear on
Page 61 and 62: PROGRAM MenuWE ( )RETURNA wait for
Page 63 and 64: AlarmsChapter 7How To Use the Serie
Page 65 and 66: AlarmsThe Operating BandNow we need
Page 67 and 68: AlarmsClearing An Alarm MessageYou
Page 69 and 70: Output - Control Per Channel (Singl
Page 71 and 72: T/C CalibrationThermocouple Field C
Page 73 and 74: RTD Field Calibration ProcedureRTD
Page 75 and 76: Process Field Calibration Procedure
Page 77 and 78: BAUD:Represents the baud rate (1200
Page 79 and 80: Hunting:Hysterisis:Input:Integral:I
Page 81 and 82: RB1H/RB2H: A thermal control band f
Page 83 and 84: IndexAAccessories, 70Actual and Alp
Page 85 and 86:
WarrantyWarranty InformationThe Wat
Page 87 and 88:
Series 922 Error Codes/AlarmsER1 Er
Page 89 and 90:
Series 922 Quick ReferenceMain Menu
Page 91 and 92:
NotesAppendixWATLOW Series 922 User
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