The Liebert XDC and Liebert XDP with iCOM allow for control down to the Smart Module level.
Many of the Liebert XD system data points can be monitored through a building management system. For specific protocol mapping, refer to the protocol specific reference guide for registers.
Table 55 Liebert XDC/XDP monitoring points Data Decription Definitions
Auto Restart Delay If power is lost, the control will delay this amount of time after power is restored before restarting the unit.
Calculated Next Maintenance Month Calculated month of the next scheduled maintenance. Used in conjunction with (Calculated Next Maintenance Year).
Calculated Next Maintenance Year Calculated year of the next scheduled maintenance. Used in conjunction with (Calculated Next Maintenance Month).
Circuit 1 Low Suction Pressure Compressor Circuit 1 low suction pressure.
Circuit 2 Low Suction Pressure Compressor Circuit 2 low suction pressure.
Compressor 1A High Head Pressure Compressor 1A High Head Pressure
Compressor 1A Short Cycle Compressor 1A short cycle. A short cycle is defined as turning On and Off a number of times over a set time period.
Compressor 1A State Compressor 1A operational state.
Compressor 1B High Head Pressure Compressor 1B high head pressure.
Compressor 1B Short Cycle Compressor 1B short cycle. A short cycle is defined as turning On and Off a number of times over a set time period.
Compressor 1B State Compressor 1B operational state.
Compressor 2A High Head Pressure Compressor 2A high head pressure.
Compressor 2A Short Cycle Compressor 2A short cycle. A short cycle is defined as turning On and Off a number of times over a set time period.
Compressor 2A State Compressor 2A operational state.
Compressor 2B High Head Pressure Compressor 2B high head pressure.
Compressor 2B Short Cycle Compressor 2B short cycle. A short cycle is defined as turning On and Off a number of times over a set time period.
Compressor 2B State Compressor 2B operational state.
Customer Input 1 Customer Input 1.
Dew Point Temperature Dew point temperature, using the highest reading from all sensors.
Ext Air Over Temp Threshold Threshold value used in the ([Ext Air Sensor A Over Temperature], [Ext Air Sensor B Over Temperature]...) events.
Ext Air Sensor A Dew Point Temp Dew point temperature as measured by External Air Sensor A.
Ext Air Sensor A Humidity Relative humidity as measured by External Air Sensor A.
Ext Air Sensor A Issue The External Air Sensor A is disconnected or the signal is out of range.
Ext Air Sensor A Over Temperature (Ext Air Sensor A Temperature) has exceeded (Ext Air Over Temp Threshold).
Ext Air Sensor A Temperature Air temperature as measured by External Air Sensor A.
Ext Air Sensor A Under Temperature (Ext Air Sensor A Temperature) has dropped below (Ext Air Under Temp Threshold).
Ext Air Sensor B Dew Point Temp Dew point temperature as measured by External Air Sensor B.
Ext Air Sensor B Humidity Relative humidity as measured by External Air Sensor B.
Ext Air Sensor B Issue The external air sensor B is disconnected or the signal is out of range.
Ext Air Sensor B Over Temperature (Ext Air Sensor B Temperature) has exceeded (Ext Air Over Temp Threshold).
Ext Air Sensor B Temperature Air temperature as measured by External Air Sensor B.
Ext Air Sensor B Under Temperature (Ext Air Sensor B Temperature) has dropped below (Ext Air Under Temp Threshold).
Ext Air Under Temp Threshold Threshold value used in the ([Ext Air Sensor A Under Temperature], [Ext Air Sensor B Under Temperature]...) events.
Ext Dew Point Over Temp Threshold Threshold value used in the (Ext Dew Point Over Temperature) event.
Ext Dew Point Over Temperature
At least one dew point temperature reading ([Ext Air Sensor A Dew Point Temp], [Ext Air Sensor B Dew Point Temp]...) has exceeded (Ext Dew Point Over Temp Threshold).
Fan Issue One or more fans are not operating within their operational parameters.
Hot Gas Solenoid Valve 1 Position Hot gas solenoid Valve 1 position.
Hot Gas Solenoid Valve 2 Position Hot gas solenoid Valve 2 position Hot Gas Valve 1 Open Position Hot gas Valve 1 open position.
Hot Gas Valve 2 Open Position Hot gas Valve 2 open position.
Maintenance Ramp The ratio of operations performed to the calculated operations available between maintenance intervals.
Minimum Room Temperature Set Point Minimum desired room air temperature. If the room air temperature falls below this set point, the unit will reduce the cooling.
Pump 1 Loss of Flow Loss of flow is detected in Pump 1. The loss of flow condition occurs when no differential pressure is detected across the pump.
Pump 1 State Pump 1 operational state.
Pump 2 Loss of Flow Loss of flow is detected in Pump 2. The loss of flow condition occurs when no differential pressure is detected across the pump.
Pump 2 State Pump 2 operational state.
Pump Short Cycle Pumps have short cycled. A short cycle is defined as turning On and Off a number of times over a set time period.
Shutdown - Loss Of Power System lost power. This event becomes active when the unit is powered on following an unexpected loss of power.
Supply Refrig Over Temp Threshold Threshold value used in the (Supply Refrigerant Over Temp) event.
Supply Refrig Over Temp Threshold Threshold value used in the (Supply Refrigerant Over Temp) event.
Supply Refrigerant Over Temp
Event that is activated when (Supply Refrigerant Temperature) exceeds (Supply Refrig Over Temp Threshold). The event is deactivated when the temperature drops below the threshold.
Supply Refrigerant Temp Sensor Issue The supply refrigeramt temperature sensor is disconnected or the signal is out of range.
Supply Refrigerant Temperature Supply refrigerant temperature.
Supply Refrigerant Under Temp (Supply Refrigerant Temperature) has dropped below a specified threshold.
System Condensation Detected System condensation detected.
System Control Mode System Control Mode System Date and Time The system date and time
System Event Acknowledge/Reset Reset and/or acknowledge all events.
System On/Off Control Turn system functionality On or Off.
System Operating State Current operating state of the system.
System Status The operating status for the system Table 55 Liebert XDC/XDP monitoring points (continued)
Data Decription Definitions
Table 56 Liebert XD Smart Module monitoring points Data Decription Definitions
Cold Aisle Over Temp Threshold Upper threshold value used in the (Cold Aisle Temp Out of Range) event.
Cold Aisle Over Temp Threshold Upper threshold value used in the (Cold Aisle Temp Out of Range) event.
Cold Aisle Temp Out of Range The air temperature in the cold aisle is either above (Cold Aisle Over Temp Threshold) or below (Cold Aisle Under Temp Threshold).
Cold Aisle Under Temp
Threshold Lower threshold value used in the (Cold Aisle Temp Out of Range) event.
Cold Aisle Under Temp
Threshold Lower threshold value used in the (Cold Aisle Temp Out of Range) event.
Communication Status Communication status of remote device.
Cooling Capacity Cooling capacity in use, expressed as a percentage of the maximum rated capacity.
Cooling Capacity Cooling capacity in use, expressed in kilowatts.
Ext Fan Issue One or more fans are not operating within their operational parameters.
Ext Fan Issue - Event Control
Enable/disable the activation of the (Ext Fan Issue) event. If set to “disabled,”
the event will not be annunciated. This implies that the event will not be placed in any active event list or in any event history list.
Ext Fan Issue - Event Type The event type for the (Ext Fan Issue) event.
Ext Remote Shutdown Unit is shut down by a remote signal.
Ext Remote Shutdown - Event Control
Enable/disable the activation of the (Remote Shutdown) event. If set to 'disabled', the event will not be annunciated. This implies that the event will not be placed in any active event list or in any event history list.
Ext Remote Shutdown - Event
Type The event type for the (Remote Shutdown) event.
Ext System Condensation
Detected External system condensation detected.
Ext System Condensation Detected - Event Control
Enable/disable the activation of the (Ext System Condensation Detected) event. If set to “disabled,” the event will not be annunciated. This implies that the event will not be placed in any active event list or in any event history list.
Ext System Condensation
Detected - Event Type The event type for the (Ext System Condensation Detected) event.
Fan Button Control Enable or disable the buttons from controlling the state of the fans.
Fan On/Off Control Turn system fans On or Off.
Hot Aisle Over Temp Threshold Upper threshold value used in the (Hot Aisle Temp Out of Range) event.
Hot Aisle Over Temp Threshold Upper threshold value used in the (Hot Aisle Temp Out of Range) event.
Hot Aisle Temp Out of Range The air temperature in the Hot aisle is either above (Hot Aisle Over Temp Threshold) or below (Hot Aisle Under Temp Threshold).
Hot Aisle Under Temp Threshold Lower threshold value used in the (Hot Aisle Temp Out of Range) event.
Hot Aisle Under Temp Threshold Lower threshold value used in the (Hot Aisle Temp Out of Range) event.
Primary Fan Group State Current operational state of the primary fan group.
Sensor Issue One or more sensors are disconnected or the signals are out of range.
Sensor Issue - Event Control
Enable/disable the activation of the (Sensor Issue) event. If set to 'disabled', the event will not be annunciated. This implies that the event will not be placed in any active event list or in any event history list.
Sensor Issue - Event Type The event type for the (Sensor Issue) event.
Fan Economy Mode Mode in which system secondary fans are to be controlled.
Fan State Current operational state of a group of fans.
Module Refrigerant Temperature Refrigerant temperature as measured by Module Sensor Module Sensor 1 Temperature Air temperature as measured by Module Sensor 1 Module Sensor 2 Temperature Air temperature as measured by Module Sensor 2 Module Sensor 3 Temperature Air temperature as measured by Module Sensor 3
Visual ID Control Visual identification control to display an LED flashing sequence, allowing it to be visually located.
Table 57 System data points
Data Decription Definitions
Unit Communication Lost Master has lost communication with one or more networked units.
RAM Battery Issue RAM or RAM backup battery is not operating correctly.
Master Unit Communication Lost Communication with master unit has been lost.
Remote Shutdown Unit is shut down by a remote signal.
Unit Code Missing Unit code has not been entered and saved.
Unit On Unit was turned on.
Unit Off Unit was turned Off.
Unit Standby Unit was placed in standby mode.
Unit Partial Shutdown An event has occurred requiring some system components to be shutdown and disabled.
Unit Shutdown An event has occurred requiring the unit to be shutdown and disabled to prevent damage to the system.
Maintenance Due The calculated maintenance date has been reached.
Maintenance Completed Maintenance has been completed on the unit.
System Operating State Reason The reason the system is in the current operating state.
System Date and Time The system date and time Table 58 Communication cards for Liebert XD units
Communication
Card Protocol
IS-WEBL SNMPv1, SNMPv2c, HTTP, HTTPS, Email, SMS, Telnet, Liebert Protocol
IS-485L Modbus 485
IS-IPBML HTTP, HTTPS, Telnet, Modbus, IP, BACnet IP IS-485EXI Liebert SiteScan®
Table 56 Liebert XD Smart Module monitoring points (continued) Data Decription Definitions