Omega CN1166 manual Alarm Operation

Page 43

Process High Alarm

direct-acting

Relay OFF

Relay ON

PV

Alarm value

Process High Alarm

reverse-acting

Relay ON

Relay OFF

PV

Alarm value

Process Low Alarm

direct-acting

Relay ON

Relay OFF

PV

Alarm value

Process Low Alarm

reverse-acting

Relay OFF

Relay ON

PV

Alarm value

Band Alarm
Band Alarm	Relay ON
direct-acting	Relay ON

Band Alarm
Band Alarm	Relay OFF
reverse-acting	Relay OFF

Relay OFF		Relay ON
Alarm value	Alarm value	PV

Relay ON		Relay OFF
Alarm value	Alarm value	PV

	Deviation High Alarm
	Deviation High Alarm	Relay OFF
	direct-acting	Relay OFF
	direct-acting
	(positive value)

Alarm value

Relay ON

PV

Deviation Low Alarm

direct-acting

Relay ON

Relay OFF

PV

(negative value)

Alarm value

Deviation High Alarm

Relay ON

Relay OFF

reverse-acting

PV

(positive value)

Alarm value

Deviation Low Alarm

Relay ON

reverse-acting

Relay OFF

PV

(negative value)

Alarm value

ALM LED flashes

PV < Setpoint

PV > Setpoint

ALM LED off

Se tp oint

Figure 2-2 Alarm Operation

O077-2

Volume II

2-7

Image 43

Contents Page Page RAMP/SOAK Profile Volume Operating Instructions Volume Installation & Configuration InstructionsContents PANEL-MOUNTING the Controller Unpacking ProcedureConnections and Wiring Rear Terminal Connections RTD Inputs Mains Line Input2 24V Nominal AC/DC Supply Thermocouple InputSSR Drive Outputs Linear InputsRemote Run/Hold Input Relay Outputs11 RS485 Serial Communications Link DC OutputsRemoving the Profile Controller from ITS Housing Internal Links and SwitchesRemoving the Output 2/Output 3 Option PCBs REMOVING/REPLACING the Output 2/OUTPUT 3 Option PCBs Replacing the Instrument in ITS HousingInput Type Selection of Input Type and Output 1 TypeCPU PCB Relay/SSR Drive/Solid State Output Primary Output Output 1 TypeOutput 2 TYPE/OUTPUT 3 Type Hardware Definition Code Entry Into Configuration ModeWit h Hardw are Definit ion Code displayed Configurat ion ModeHardware Definition Code Input/Output Type Selection Option SelectionWit h Hardw are Definit ion Code displayed Configuration Mode ParametersParameter AL1 OFF, AL2 OFF Parameter Page Exit from Configuration Mode Base Mode Alphabetic Index Controller SET-UP ModeProgram Definition Mode CREATING/EDITING a Program Modbus CommunicationsDisplay Sequence no Program Running Base ModeAborting a Program Starting a ProgramPutting a Program in Hold Releasing a Program from HoldRead Only whilst Program is running/held Display Sequence Program RunningPRE-TUNE Feature RaPID Control FeatureIndication of PRE-TUNE and RaPID Status Engaging Both PRE-TUNE and RaPID FeaturesRaPID Status when Hardware Definition Code has the following significance Viewing the Hardware Definition CodePress till front panel shows Press or to change display to Manual ControlController SET-UP Mode Lower display = Parameter Details Parameter Function Adjustment Range Default Value ON/OFF Parameter Function Adjustment Range Default Value Power Alarm Operation Deviation When this display shows Exit from Controller SET-UP ModeEntry Program Definition Mode CREATING/EDITING a ProgramBasic Guidelines Creating a ProgramTo make a Soak segment Defining Segments Rate ModeDefining Segments Time Mode Program Options T p o i n t Guaranteed Soak BandSegment Event Status Press key To display Exit from Program Define Mode Default Values and Adjustment RangesModbus Functions Supported IntroductionMessage Formats CRC16 Read Coil Status Read n Bits 01/02Force Single Coil Write 1 Bit Read Holding Registers Read n Words 03/04Loopback Diagnostic Test Preset Single Register Write 1 Word 06 BPreset Multiple Registers Write n Words 16 B CRC16 Calculation Error and Exception ResponsesReversed BIT Order Used Bit Parameters Controller Status Byte Parameter NumbersController Parameters Word ParametersInstrument ID Parameters Volume O077-4 Profiler Status Byte Profiler CommandsGeneral Universal InputInput Range Remote RUN/HOLD Input Option Solid State OutputRelay SSR Drive/TTLTypes Available Relay, SSR drive, solid state and DC Solid State SSR Drive/TTL Loop Control Alarm ControlReference Conditions PerformancePerformance Under Reference Conditions S077-A Volume See Performance EnvironmentalPhysical Appendix B Summary of Displays Program Define Mode Parameters Configuration Mode Parameters AppendixC RaPID Control Feature AT OFF Alphabetical Index S077-IDX Volume Making a Soak Segment S077-IDX Volume Unpacking Procedure Word Parameters II/4-8