Emerson MODBUS 485 Power Supply User Manual


 
BACnet Communications - Thermal Management Products
Liebert
®
IntelliSlot
®
Modbus/BACnet IP 252
Humidity Set Point Desired relative humidity.
Infrared Humidifier Flush Rate
A multiple of an internal time constant that determines the flush duration of the
infrared humidifier water pan.
Input Undervoltage One or more of the input phase voltages has dropped below the limit.
Instantaneous Power Total electrical power currently being consumed.
Loss of Air Flow No air flow through the unit due to failure of all fans.
Low Return Humidity - Event Control
Enable/disable the activation of the [Low Return Humidity] 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.
Low Return Humidity - Event Type The event type for the [Low Return Humidity] event.
Low Return Humidity Threshold Threshold value used in the [Low Return Humidity] event.
Low Return Humidity Return air low humidity event.
Low Static Pressure Low static pressure event.
Main Chilled Water Valve The primary valve in a dual valve chilled water system.
Main Fan Overload - Event Control
Enable/disable the activation of the [Main Fan Overload] 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.
Main Fan Overload - Event Type The event type for the [Main Fan Overload] event.
Main Fan Overload Main fan is shut down due to thermal overload.
Maintenance Completed Maintenance has been completed on the unit.
Maintenance Due The calculated maintenance date has been reached.
Maintenance Ramp
The ratio of operations performed to the calculated operations available
between maintenance intervals.
Maintenance Tracking State Maintenance tracking operational state.
Master Unit Communication Lost - Event
Control
Enable/disable the activation of the [Master Unit Communication Lost] 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.
Master Unit Communication Lost - Event
Type
The event type for the [Master Unit Communication Lost] event.
Master Unit Communication Lost Communication with master unit has been lost.
Minimum Chilled Water Temp Set Point
Enable
Enable/disable the activation of [Minimum Chilled Water Temp Set Point].
Minimum Chilled Water Temp Set Point Minimum desired chilled water temperature.
Mixed Mode Lockout
Mixed mode has been entered too many times over a rolling time period and has
been temporarily disabled. Mixed mode is defined as the use of a compressor
on one refrigeration circuit and the use of a refrigerant pump on the other circuit.
Outside Air Temperature Ambient outside air temperature.
Pump Hours Operating hours for pump since last reset of this value.
Pump Unspecified General Event
One or more unspecified pump events active. See local unit display for further
details.
RAM Battery Issue RAM or RAM backup battery is not operating correctly.
Reheat Utilization
Present reheating utilization expressed as a percentage of the maximum rated
capacity.
Reheater Lockout Enable/disable the use of the reheater.
Reheater Over Temperature The temperature of the reheater has exceeded its threshold.
Remote Sensor Average Over
Temperature
[Remote Sensor Average Temperature] has exceeded [Remote Sensor Over
Temp Threshold].
Table 82 Liebert Challenger 3000
, Liebert Challenger ITR
, Liebert CW
, Liebert Deluxe System/3
,
Liebert DS
, Liebert DSE
, Liebert HPM
, Liebert PeX
- Glossary
Data Label Data Description