Liebert Icom-Do; Table 9 Alarm Mapping - Emerson Liebert Challenger 3000 User Manual

3.8.3

Liebert iCOM-DO

The Liebert iCOM-DO is an optional discrete output relay card that can be connected to the Liebert
iCOM controls that will provide a dry alarm contact for monitoring systems. The Liebert iCOM-DO is
a direct replacement of the Liebert ENV-DO card that was supported on previous Liebert control sys-
tems. The Liebert iCOM-DO allows simultaneous use of the Liebert Intellislot cards as the Liebert
iCOM-DO communicates over the CAN sensor bus network instead of the iGMNet interface.
A single Liebert iCOM-DO card can be connected to Liebert iCOM, which converts up to 15 configu-
rable alarms to a discrete output (relay). The Liebert iCOM-DO setup can be found in the Service, Lie-
bert iCOM-DO menu. The Liebert iCOM-DO is pre-configured and will automatically be identified by
the Liebert iCOM controller. The default alarm configuration matches the original Liebert ENV-DO
card alarm mapping.
Table 9 Alarm mapping
# String
01 Cooling Status
02 Heating Status
03 Humidifying Status
04 Dehumidifying Status
05 High Temperature
06 High Humidity
07 Low Temperature
08 Low Humidity
09a High Head Pressure C1
09b High Head Pressure C2
10 Loss of Airflow
11 Change Filters
12 Water Alarm
13 Condensing Pump Alarm The output is set as long as the condensing pump alarm is active
14 Glycool Status
15 Unit On
An event is active as long as it is not acknowledged. Once acknowledged, an alarm remains active until the event
situation is not true anymore and the event is reset by the board, which switches off the red LED and the general
alarm relay.
Notes
The output is set as soon as the unit is providing any cooling.
The output is set as soon as the unit is providing any heating.
The output is set as soon as the unit is providing any humidification.
The output is set as soon as the unit is providing any dehumidification.
The output is set as long as the high temperature alarm is active.
The output is set as long as the high humidity alarm is active.
The output is set as long as the low temperature alarm is active.
The output is set as long as the low humidity alarm is active.
The output is set as long as the compressor 1 high head pressure alarm is active.
The output is set as long as the compressor 2 high head pressure alarm is active.
The output is set as long as a loss of air flow alarm is active
The output is set as long as a change filter alarm is active
The output is set as long as a water alarm is active
The output is set when there is free cooling available
The output is set as soon as the unit is turned on
37
Operation