Chromalox 1604-7 Snrt Smart status, RSt Manual reset of the alarms, AL1 Alarm 1 threshold

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OPERATIVE PARAMETERS

Push the FUNC pushbutton, the lower display will show the code while the upper display will show the value or the status (On or OFF) of the selected parameter.

By s or t pushbutton it is possible to set the desired value or the desired status.

Pushing the FUNC pushbutton, the instrument memorizes the new value (or the new status) and goes to the next parameter.

Some of the following parameter may be skipped according to the instrument configuration.

Param. DESCRIPTION

SP Set point (in eng. units). Range: from rL to rH.

SP is operative when the logic input is open.

Snrt SMART status.

The On or OFF indication shows the actual status of the SMART function (enabled or disabled respectively).

Set On to enable the SMART function. Set OFF to disable the SMART function.

n.rSt Manual reset of the alarms.

This parameter is skipped if none of the alarms has the manual reset function. Set On and push FUNC to reset the alarms.

SP2 Set point 2 (in eng. units). Range: from rL to rH.

SP2 is operative when the logic input is closed.

nnnSoftware key for parameter protection.

This parameter is skipped if P17 = 0 or 1 On = the instrument is in LOCK condition OFF = the instrument is in UNLOCK condition

When it is desired to switch from LOCK to UNLOCK condition, set a value equal to P17 parameter.

When it is desired to switch from UNLOCK to LOCK condition, set a value different from P17 parameter.

AL1 Alarm 1 threshold

This parameter is available only if P 9 is equal to AL1.P, AL1.b or AL1.d. Ranges:

-Span limits for process alarm.

-From 0 to 500 units for band alarm.

-From -500 to 500 units for deviation alarm.

HSA1 Alarm 1 hysteresis

This parameter is available only if P 9 is equal to AL1.P, AL1.b or AL1.d. Range:From 0.1% to 10.0% of the input span or 1 LSD.

Note: If the hysteresis of a band alarm is larger than the alarm band, the instrument will use an hysteresis value equal to the programmed band minus 1 digit.

AL2 Alarm 2 threshold

This parameter is available only if P 11 is equal to AL2.P, AL2.b or AL2.d and P13 = OPrt.

For other details see AL1parameter. HSA2 Alarm 2 hysteresis

This parameter is available only if P 11 is equal to AL2.P, AL2.b or AL2.d and P13 = OPrt.

For other details see HSA1parameter.

Pb Proportional band

Range: from 1.0% to 200.0% of the input span.

When Pb parameter is set to 0, the control action becomes ON-OFF.

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Contents Chromalox Contents III Model identificationScrew Mounting RequirementsOutline and CUT-OUT Dimensions Outline and CUT OUT DimensionsMeasuring Inputs TC Input Connection DiagramsLinear Input RTD InputRelay Outputs Logic Input Safety noteOUT Linear Output Inductive LoadsLoad Operating Voltage Serial Interface Power Line WiringWhen the Neutral line is present, connect it to terminal Input Preliminary Hardware SettingsType TC-RTD Open Input CircuitOFF SEr1 = Serial interface protocolSEr3 = Baude rate for serial link SEr4 = Byte format for serial linkP3 = Initial scale value P2 = Decimal point positionP4 = Full scale value P5 = Output 1 functionP7 = analog retransmission initial scale value P10 = Alarm 1 operating modeP8 = analog retransmission full scale value P9 = Output 2 function. nonE = output not usedP14 = Alarm 2 threshold value P12 = Alarm 2 operating modeP15 = Alarm 2 hysteresis value P18 = Main control output action P19 = Displayed value of the main power outputP20 = Secondary control output action P22 = Cooling mediaP26 = Alarm 2 action P24 = Alarm 1 actionP28 = Offset adjustment added to the measured value P29 = Displayable protected parametersP38 = Output safety value P36 = Timeout selectionP34 = Manual function P43 = Set point indication P41 = Control action typeP44 = Operative set point alignment at instrument start up Display Function IndicatorsREM SP2 MAN SP SP2 Selection MAN =Manual Function Direct Access to SET PointLamp Test Serial Link Smart functionAL1 Alarm 1 threshold RSt Manual reset of the alarmsHSA1 Alarm 1 hysteresis AL2 Alarm 2 thresholdHysteresis for ON/OFF control action Output 3 cycle timeRelative Cooling gain Integral timeGrd1 Ramp applied to an increasing set point change TOL Time duration of the output power limiter soft startError Messages Error MessagesOverrange UnderrangeError List General Informations General SpecificationsInputs Thermocouple Logic Input Linear InputsControl Actions SET PointsOutputs Output AlarmsSerial Communication Interface MaintenanceStop bit one Address Parameter Default Value Appendix a Default Parameters= OFF HSA1, HSA2ER0 ParaP44 Appendix A.3 Appendix A.4 Emerson Electric CO Chromalox
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