Chromalox 1604-7 user manual P24 = Alarm 1 action, P26 = Alarm 2 action, P30 = Smart function

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P24 = Alarm 1 action

Available only when P9 = "AL1.P", "AL1.d" or "AL1.b".

dir = direct action (relay energized in alarm condi- tion)

rEV = reverse action (relay de-energized in alarm condition)

P25 = alarm 1 stand-by (mask) function Available only when P9 = "AL1.P", "AL1.d" or "AL1.b".

OFF = stand-by (mask) function disabled On = stand-by (mask) function enabled

NOTE: If the alarm is programmed as band or deviation alarm, this function masks the alarm condition after a set point change or at the instrument start-up until the process variable reaches the alarm threshold plus or minus hysteresis. If the alarm is programmed as a process alarm, this function masks the alarm condition at instrument start-up until the process variable reaches the alarm threshold plus or minus hysteresis.

P26 = Alarm 2 action

Available only when P11 = "AL2.P", "AL2.d" or "AL2.b".

dir = direct action (relay energized in alarm condition)

rEV = reverse action (relay de-energized in alarm condition)

P27 = Alarm 2 stand-by (mask) function Available only when P11 ="AL2.P", "AL2.d" or "AL2.b".

OFF = Stand-by (mask) function disabled On = Stand-by (mask)function enabled

NOTE: for more details to stand-by (mask) function, see P25 parameter.

P28 = OFFSET adjustment added to the measured value

This parameter allows to set a constant OFFSET throughout the readout range.

It is skipped for linear inputs

-For readout ranges with decimal figure, P28 is programmable from -19.9 to 19.9.

-For readout ranges without decimal figure, P28 is programmable from -199 to 199.

Readout Real curve

P28

Adjusted

 

 

curve

Input

P29 = Displayable protected parameters

This parameter is skipped when P17 = 0.

OFF = Protected parameters cannot be displayed. On = Protected parameter can be displayed.

P30 = SMART function

This parameter is skipped when none of the outputs is programmed as control output.

0 = SMART function disabled.

1 = SMART function is NOT protected by safety lock.

2 = SMART function is under safety lock protection.

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Contents Chromalox Contents Model identification IIIMounting Requirements ScrewOutline and CUT OUT Dimensions Outline and CUT-OUT DimensionsConnection Diagrams Measuring Inputs TC InputRTD Input Linear InputLogic Input Safety note Relay OutputsOUT Inductive Loads Linear OutputLoad Operating Voltage Power Line Wiring Serial InterfaceWhen the Neutral line is present, connect it to terminal Type TC-RTD Preliminary Hardware SettingsInput Open Input CircuitSEr3 = Baude rate for serial link SEr1 = Serial interface protocolOFF SEr4 = Byte format for serial linkP4 = Full scale value P2 = Decimal point positionP3 = Initial scale value P5 = Output 1 functionP8 = analog retransmission full scale value P10 = Alarm 1 operating modeP7 = analog retransmission initial scale value P9 = Output 2 function. nonE = output not usedP12 = Alarm 2 operating mode P14 = Alarm 2 threshold valueP15 = Alarm 2 hysteresis value P20 = Secondary control output action P19 = Displayed value of the main power outputP18 = Main control output action P22 = Cooling mediaP28 = Offset adjustment added to the measured value P24 = Alarm 1 actionP26 = Alarm 2 action P29 = Displayable protected parametersP36 = Timeout selection P38 = Output safety valueP34 = Manual function P41 = Control action type P43 = Set point indicationP44 = Operative set point alignment at instrument start up Indicators Display FunctionREM SP2 MAN MAN = SP SP2 SelectionDirect Access to SET Point Manual FunctionLamp Test Smart function Serial LinkHSA1 Alarm 1 hysteresis RSt Manual reset of the alarmsAL1 Alarm 1 threshold AL2 Alarm 2 thresholdRelative Cooling gain Output 3 cycle timeHysteresis for ON/OFF control action Integral timeTOL Time duration of the output power limiter soft start Grd1 Ramp applied to an increasing set point changeOverrange Error MessagesError Messages UnderrangeError List General Specifications General InformationsInputs Thermocouple Linear Inputs Logic InputSET Points Control ActionsOutputs Alarms OutputMaintenance Serial Communication InterfaceStop bit one Address = OFF Appendix a Default ParametersParameter Default Value HSA1, HSA2Para ER0P44 Appendix A.3 Appendix A.4 Chromalox Emerson Electric CO
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