org.lsst.ccs.subsystem.refrig

Class Compressor

java.lang.Object

org.lsst.ccs.subsystem.refrig.Compressor

All Implemented Interfaces:

org.lsst.ccs.framework.HasLifecycle

Direct Known Subclasses:

ColdCompressor, CryoCompressor

public class Compressor
extends Object
implements org.lsst.ccs.framework.HasLifecycle

Controls a refrigeration compressor.

Author:

Owen Saxton

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Compressor.LimitData
static interface	Compressor.SwitchDevice

Field Summary

Fields

Modifier and Type	Field and Description
protected String	cmprPowerChan
protected String	discPressChan
protected String	discTempChan
protected String	liquidTempChan
protected String	phaseSepTempChan
protected String	suctPressChan
protected String	suctTempChan

Constructor Summary

Constructors

Constructor and Description
Compressor(CompState state) Constructor.

Method Summary

Modifier and Type	Method and Description
org.lsst.ccs.framework.ClearAlertHandler.ClearAlertCode	canClearAlert(org.lsst.ccs.bus.data.Alert alert) Enables an alert to be cleared.
int	getIndex() Gets the compressor index.
CompState	getState() Gets the compressor state.
void	postInit() Initializes the compressor control.
void	resetLatches() Command to reset the latches.
void	setBypassValve(double posn) Command to set the cold bypass valve position.
void	setCmprPowerDelayLimit(double value) Sets the compressor power delayed limit.
void	setCmprPowerDelayTime(int value) Sets the compressor power delay.
void	setCmprPowerImmedLimit(double value) Sets the compressor power immediate limit.
void	setCoolantValve(double posn) Command to set the cold coolant valve position.
void	setDiscPressDelayLimit(double value) Sets the discharge pressure delayed limit.
void	setDiscPressDelayTime(int value) Sets the discharge pressure delay.
void	setDiscPressImmedLimit(double value) Sets the discharge pressure immediate limit.
void	setDiscTempDelayLimit(double value) Sets the discharge temperature delayed limit.
void	setDiscTempDelayTime(int value) Sets the discharge temperature delay.
void	setDiscTempImmedLimit(double value) Sets the discharge temperature immediate limit.
void	setDiscTempLowImmedLimit(double value) Sets the discharge temperature low immediate limit.
void	setIndex(int index) Sets the compressor index.
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	setPhaseSepTempDelayLimit(double value) Sets the phase separator temperature delayed limit.
void	setPhaseSepTempDelayTime(int value) Sets the phase separator temperature delay.
void	setPressDiffImmedLimit(double value) Sets the discharge pressure difference immediate limit.
void	setSuctTempImmedLimit(double value) Sets the suction temperature immediate limit.
void	setSwitchOn(int sw, boolean on) Command to turn a switch on or off..
void	setVfdFrequency(double freq) Command to set the cold VFD frequency.
boolean	updateSystem() Updates the compressor system.

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, init, postBuild, postShutdown, postStart, shutdown, start

Field Detail

discPressChan

protected String discPressChan

discTempChan

protected String discTempChan

suctPressChan

protected String suctPressChan

suctTempChan

protected String suctTempChan

cmprPowerChan

protected String cmprPowerChan

phaseSepTempChan

protected String phaseSepTempChan

liquidTempChan

protected String liquidTempChan

Constructor Detail

Compressor

public Compressor(CompState state)

Constructor.

Parameters:

state - The compressor state object

Method Detail

postInit

public void postInit()

Initializes the compressor control.

Specified by:

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

setDiscPressImmedLimit

@ConfigurationParameterChanger
public void setDiscPressImmedLimit(double value)

Sets the discharge pressure immediate limit.

Parameters:

value - The value to set

setDiscPressDelayLimit

@ConfigurationParameterChanger
public void setDiscPressDelayLimit(double value)

Sets the discharge pressure delayed limit.

Parameters:

value - The value to set

setDiscPressDelayTime

@ConfigurationParameterChanger
public void setDiscPressDelayTime(int value)

Sets the discharge pressure delay.

Parameters:

value - The value to set

setDiscTempImmedLimit

@ConfigurationParameterChanger
public void setDiscTempImmedLimit(double value)

Sets the discharge temperature immediate limit.

Parameters:

value - The value to set

setDiscTempDelayLimit

@ConfigurationParameterChanger
public void setDiscTempDelayLimit(double value)

Sets the discharge temperature delayed limit.

Parameters:

value - The value to set

setDiscTempDelayTime

@ConfigurationParameterChanger
public void setDiscTempDelayTime(int value)

Sets the discharge temperature delay.

Parameters:

value - The value to set

setSuctTempImmedLimit

@ConfigurationParameterChanger
public void setSuctTempImmedLimit(double value)

Sets the suction temperature immediate limit.

Parameters:

value - The value to set

setCmprPowerImmedLimit

@ConfigurationParameterChanger
public void setCmprPowerImmedLimit(double value)

Sets the compressor power immediate limit.

Parameters:

value - The value to set

setCmprPowerDelayLimit

@ConfigurationParameterChanger
public void setCmprPowerDelayLimit(double value)

Sets the compressor power delayed limit.

Parameters:

value - The value to set

setCmprPowerDelayTime

@ConfigurationParameterChanger
public void setCmprPowerDelayTime(int value)

Sets the compressor power delay.

Parameters:

value - The value to set

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

setPhaseSepTempDelayLimit

@ConfigurationParameterChanger
public void setPhaseSepTempDelayLimit(double value)

Sets the phase separator temperature delayed limit.

Parameters:

value - The value to set

setPhaseSepTempDelayTime

@ConfigurationParameterChanger
public void setPhaseSepTempDelayTime(int value)

Sets the phase separator temperature delay.

Parameters:

value - The value to set

setDiscTempLowImmedLimit

@ConfigurationParameterChanger
public void setDiscTempLowImmedLimit(double value)

Sets the discharge temperature low immediate limit.

Parameters:

value - The value to set

setPressDiffImmedLimit

@ConfigurationParameterChanger
public void setPressDiffImmedLimit(double value)

Sets the discharge pressure difference immediate limit.

Parameters:

value - The value to set

setIndex

public void setIndex(int index)

Sets the compressor index.

Parameters:

index - The index value

getIndex

public int getIndex()

Gets the compressor index.

Returns:

The index value

setSwitchOn

@Command(type=ACTION,
         description="Set a compressor\'s switch state")
public void setSwitchOn(@Argument(description="Switch number")
                                                                                                       int sw,
                                                                                                       @Argument(description="Whether to turn on")
                                                                                                       boolean on)
                                                                                                throws RefrigException

Command to turn a switch on or off..

Parameters:

sw - The switch ID

on - Whether to turn on

Throws:

RefrigException

resetLatches

@Command(type=ACTION,
         description="Reset a compressor\'s latches")
public void resetLatches()

Command to reset the latches.

setBypassValve

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

Command to set the cold bypass valve position.

Parameters:

posn - The valve position (0 - 1)

Throws:

RefrigException

setCoolantValve

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

Command to set the cold coolant valve position.

Parameters:

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="Valve position")
                                                                                                                 double freq)
                                                                                                          throws RefrigException

Command to set the cold VFD frequency.

Parameters:

freq - The frequency

Throws:

RefrigException

updateSystem

public boolean updateSystem()

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

Returns:

Whether any state value changed

getState

public CompState getState()

Gets the compressor state.

Returns:

The compressor state

canClearAlert

public org.lsst.ccs.framework.ClearAlertHandler.ClearAlertCode canClearAlert(org.lsst.ccs.bus.data.Alert alert)

Enables an alert to be cleared.

Parameters:

alert - The alert

Returns:

Action code