org.lsst.ccs.subsystem.refrig

Class ColdCompressor

java.lang.Object

org.lsst.ccs.subsystem.refrig.Compressor

org.lsst.ccs.subsystem.refrig.ColdCompressor

All Implemented Interfaces:

org.lsst.ccs.framework.HasLifecycle

public class ColdCompressor
extends Compressor

Controls a refrigeration cold compressor.

Author:

Owen Saxton

Nested Class Summary

Nested classes/interfaces inherited from class org.lsst.ccs.subsystem.refrig.Compressor

Compressor.LimitData, Compressor.SwitchDevice

Field Summary

Fields inherited from class org.lsst.ccs.subsystem.refrig.Compressor

channelMap, cmprPowerChan, COMP_LIMITS, discPress, discPressChan, discTemp, discTempChan, gotCommand, limitData, maq20Devc, plutoDevc, state, stateChanged, suctTempChan, switchChannels, switchDevices

Constructor Summary

Constructors

Constructor and Description
ColdCompressor() Constructor.

Method Summary

Modifier and Type	Method and Description
List<String>	getValveNames() Command to get the valid valve names.
void	postInit() Initializes the cold compressor control.
void	resetVfdFault() Command to reset a VFD fault condition.
void	setDiscPressDelayTime(int value) Sets the discharge pressure delay.
void	setLiquidTempDelayLimit(double value) Sets the liquid temperature delayed limit.
void	setLiquidTempDelayTime(int value) Sets the liquid temperature delay.
void	setLiquidTempImmedLimit(double value) Sets the liquid temperature immediate limit.
void	setValvePosition(String valve, double posn) Command to set a valve position.
void	setVfdFrequency(double freq) Command to set the VFD frequency.
protected boolean	updateState() Updates the compressor state.

Methods inherited from class org.lsst.ccs.subsystem.refrig.Compressor

areEqual, getIndex, getState, getSwitchNames, init, postStart, resetLatches, setCmprPowerDelayLimit, setCmprPowerDelayTime, setCmprPowerImmedLimit, setDiscPressDelayLimit, setDiscPressImmedLimit, setDiscTempDelayLimit, setDiscTempDelayTime, setDiscTempImmedLimit, setIndex, setSuctTempImmedLimit, setSwitch, setSwitchOn, updateSystem

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.lsst.ccs.framework.HasLifecycle

build, postBuild, postShutdown, shutdown, start

Constructor Detail

ColdCompressor

public ColdCompressor()

Constructor.

Method Detail

postInit

public void postInit()

Initializes the cold compressor control.

Specified by:

postInit in interface org.lsst.ccs.framework.HasLifecycle

Overrides:

postInit in class Compressor

setLiquidTempImmedLimit

@ConfigurationParameterChanger
public void setLiquidTempImmedLimit(double value)

Sets the liquid temperature immediate limit.

Parameters:

value - The value to set

setLiquidTempDelayLimit

@ConfigurationParameterChanger
public void setLiquidTempDelayLimit(double value)

Sets the liquid temperature delayed limit.

Parameters:

value - The value to set

setLiquidTempDelayTime

@ConfigurationParameterChanger
public void setLiquidTempDelayTime(int value)

Sets the liquid temperature delay.

Parameters:

value - The value to set

setDiscPressDelayTime

@ConfigurationParameterChanger
public void setDiscPressDelayTime(int value)

Sets the discharge pressure delay.

Parameters:

value - The value to set

getValveNames

@Command(type=QUERY,
         description="Get the valid valve names",
         level=0)
public List<String> getValveNames()

Command to get the valid valve names.

Returns:

The index value

setValvePosition

@Command(type=ACTION,
         description="Set a cold compressor\'s valve position")
public void setValvePosition(@Argument(description="Valve name")
                                                                                                                   String valve,
                                                                                                                   @Argument(description="Valve position")
                                                                                                                   double posn)
                                                                                                            throws RefrigException

Command to set a valve position.

Parameters:

valve - The valve name

posn - The valve position (0 - 1)

Throws:

RefrigException

setVfdFrequency

@Command(type=ACTION,
         description="Set a cold compressor\'s VFD frequency")
public void setVfdFrequency(@Argument(description="Frequency")
                                                                                                                 double freq)
                                                                                                          throws RefrigException

Command to set the VFD frequency.

Parameters:

freq - The frequency

Throws:

RefrigException

resetVfdFault

@Command(type=ACTION,
         description="Reset a cold compressor\'s VFD fault")
public void resetVfdFault()
                                                                                                      throws RefrigException

Command to reset a VFD fault condition.

Throws:

RefrigException

updateState

protected boolean updateState()

Updates the compressor state. This should be called at regular (short) intervals to maintain the correct state

Overrides:

updateState in class Compressor

Returns:

Whether any value changed