Parker Sporlan Kelvin II User Manual

Page 4MODBUSFunctionCodeMappedData Data Map RangeRead InputRegisters(0x04)ProcessVariables8. Alarm StatusIf Bit set then alarm isactive:Bit 0 = SuctionTransducer FailureBit 1 = Tout SensorFailureBit 2 = High SuperheatBit 3 = Low Superheat9. System CycleStatusIf Bit set then mode isactive:Bit 1 = Setup ModeBit 2 = Off CycleBit 3 = Cooling CycleBit 4 = Pump-down CycleBit 5 = Manual ValveOverride ModeWrite SingleCoil (0x05)ManualValveControlBit 0 = Manual ValveEnabled Flag0 = Disabled,1 = Enabled.The Manual Valveduration Bit is read-only.Write SingleRegister(0x06)Setpoints Same as above.The max number ofregisters written at atime is1. The limits can beseen above in the‘Read HoldingRegister’ definition.5. Kelvin II Features5.1. Pumpdown FeatureThe Kelvin II will initiate a pumpdown when Auxiliary Tem-perature sensor terminals are shorted. If desired, this temper-ature connection could be set up as a dry contact. When apumpdown is desired the contact should be closed. The pump-down will be ended when the short is removed provided thatthere are no sensor alarms.5.2. Manual Valve Position FeatureThe Kelvin II has the ability to manually control the valve.To enable this manual control via the local or remote displayssimply open the setpoint menu and edit the ‘SPoS’ setpoint.When the value is displayed for this setpoint the user is manu-ally controlling the valve. The valve position can be changedby rotating the knob clockwise or counterclockwise. There isan inactivity timer of 60 minutes while in manual control. Thetimer is reset each time the user moves the valve. The manualcontrol of the valve is ended when the user presses the knob togo back to displaying ‘SPoS’ or a timeout has been reached.6. Kelvin II AlarmsThe Kelvin II has 4 alarms. The following table lists thepossible alarms and the text that is seen on the controller.The controller’s alarm status can be viewed via MODBUS,Network Master, and local and remote displays.Table 5 AlarmsAlarm Text MeaningNoAL No Alarms activePSAL Pressure Sensor alarmTSAL Tout Sensor alarmHSAL High Superheat alarmLSAL Low Superheat alarmNormally, on the process value screens, the process valuetext alternates with its value. When an alarm is activated thealarm status “-AL-“screen is added to the rotation to make theuser aware that an alarm has been activated. The Alarm Statusmenu display item ALS, will show the active alarms shownin Table 5.7. Kelvin II Display NetworkingThe Kelvin II displays can be set up to access other Kelvin IIcontrollers on the network. The controller’s current ‘CAdr’value can be determined by pressing down the button on thedisplay while viewing a process value. To enable the displaynetwork the ‘CAdr’ setting MUST be set to a unique nonzerovalue with the RJ-45 connector on the side of the controllerDISCONNECTED.After ‘CAdr’ has been set, an ‘End’ screen is added just be-fore the ‘SuPH’ process value. Pressing the button on thedisplay while viewing the ‘End’ screen brings up a menu al-lowing the selection of other Kelvin II controllers connectedto the display network. Turning the knob allows the selec-tion of other Kelvin II controllers based on their appropriate‘CAdr’ address. The local controller is listed as ‘LocL’ by alocal display. Note: the remote display always includes the‘End’ screen since it must be able to view any controller on thedisplay network.8. Kelvin II Factory ResetA factory reset can be performed by holding the button downon the local or remote displays for 5 seconds when power isfirst applied. If using a local display the display will show‘FrSt’ while the factory reset is being performed and thenautomatically connect to the local controller.If using a remote display the display will show ‘FrSt’ andswitch to a menu that allows the selection of the controllerto reset. To perform a factory reset, select the controller withthe appropriate ‘CAdr’ value. The display should show ‘----‘while the reset is being performed. When finished perform-ing factory resets turn the knob counterclockwise until ‘ESC’is shown on the display. Pressing the button while ‘ESC’ isshown on the display exits the factory reset menu and shouldautomatically connect to a controller on the display network.Table 6 Replacement PartsPart Number Description952560 Kelvin II without display952561 Kelvin II with local display952562 Kelvin II Remote panel display952662 Temperature Sensor Assembly952795 Well Sensor Kit953091 Pressure Transducer 150 psig with cable952995 Pressure Transducer 150 psia with cable952740 Pressure Transducer 300 psig with cable forR-410A applications only952504 Pressure Transducer 500 psig with cable forR-477 applications only

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