Emerson iCOM user manual User Inputs / Customer Inputs, Customer inputs

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Operation

3.7.5User Inputs / Customer Inputs

The user can connect and specify up to four inputs depending on unit configuration. The user inputs/customer inputs are digital inputs that influence the operating mode of the unit depending on the selection. The customer input configuration settings are in the Service menu under Set Alarms, Screen 2 of 7. The choices for the customer inputs are shown in Table 7 along with their associated reaction. A terminal strip is provided in the cooling unit to connect your contact closure to. You have the ability to set the control to react on an open or closed contact.

NOTE

To enabled/disabled, delay activation and set event type (alarm, warn, message) see Event Types on page 34.

Table 7	Customer inputs
Setting		Reaction

Smoke		Event Only

Water Alarm		Event Only

C PMP Alarm		Event Only

Flow Alarm		Event Only

Stdby G Pmp		Event Only

Stdby Unit		Event Only

C-Input 1		Event Only

C-Input 2		Event Only

C-Input 3		Event Only

C-Input 4		Event Only

Rht Lockout		Event + Electrical Heaters Disabled

Hum Lockout		Event + Humidifier Disabled

Rht+Hum Lock		Event + Electrical Heaters and Humidifier Disabled

Comp Lockout		Event + Compressor(s) Disabled w/o Pump Down

Call Service		Event Only

High Temp		Event Only

Air Loss		Event Only

FC Lockout		Event + Free Cooling Disabled

Heater Alarm		Event + Heaters Off (PeX Only)

Flow AL SD		Event + Shut Down the Unit

Flow AL LC		Event + Lockout Compressors, No Pump Down (enabled only if at
		least one compressor is on; auto-reset depends on input status)
Comp Lock PD		Event + Compressor(s) Disabled w/ Pump Down

Enable FC		Forces Free Cooling to On

HTRJ VFD		Activates the HEAT REJ VFD ALARM; no other function

HTRJ TVSS		Activates the HEAT REJ TVSS ALARM; no other function

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Contents Liebert iCOM Page Table of Contents Installing a Liebert Icom UNIT-TO-UNITNETWORK TeamworkMounting a Large Display on a Wall Figures Tables Large and Small Displays FeaturesESC Icon Key Name Function Keyboard icons and functionsStatus menu, large display, graphical view Navigating Through the Liebert iCOM Menus Accessing SubmenusAccessing Submenus on Small Displays Accessing Submenus on Large DisplaysMenu tree-Small display, stand-alone or networked Entering a PasswordService Menu Unit Status Menu System View Status Menu Unit 1 View User MenuAdvanced Menu Unit Service Menu Unit # Viewing Multiple Units with a Networked Large DisplayAdvanced Menu Unit # SET User menu icons Service menu icons Unit/Fan Control Start Stop Single Unit FunctionsAutorestart Loss of Power AlarmFan Alarm / Fan Protection Settings VSD Setpoint VSD Fan Speed SettingPump Down High Pressure AlarmDigital Scroll High Temperature Compressor Timing-Units With Two CompressorsCompressor Sequencing Service Offset-Changing System Pressure Settings Motorized Ball Valve in Digital Scroll UnitsMBV Operation After Compressor is Turned Off Temperature proportional band Temperature Proportional BandTwo Single-Step Compressors Without Unloaders-Two-Step Compressor ControlCompressor Proportional Bands One Single-Step Compressor Without Unloaders-One-StepTwo compressors with unloaders four-step Two Compressors With Unloaders-Four-StepDigital scroll capacity modulation, 10-100% variable Digital Scroll CompressorsChilled Water Control Temperature Control-Second Cooling SourceDifferential Temperatures / Controls Comparator Circuit Delta T Temperature Difference Between Room and GlycolSecond cooling source and compressorized cooling Dual Cooling Source Temperature Control-ReheatReheat configuration types Glycool Cooling-Free-CoolingHeat On ½ Dead Band 100% Off ½ Proportional Band Decreasing TemperatureSCR Reheat Tight ModeStandard Mode Humidity Control Humidification DehumidificationHumidification Humidification Infrared Humidifier Parameters for infrared humidifier controlExternal Humidifier Control-Optional Dehumidification Compressor Quantity Dehumidification With Comp settingsDehumidification Dehumidification Low LimitTemperature and Humidity Control Types Control TypesReheat During Dehumidification Humidity Sensor Reading Control Types Supply Limit-Optional High and Low, Temperature and Humidity EventsCustomer inputs User Inputs / Customer InputsEvent Types Time DelayEnable or Disable Event Types and PropertiesMain FAN Overload Event notifications-large or small display Possible Event NotificationsNext Maintenance Calculation Calculation of Next Maintenance and DiagnosticsCalculating Unit Wellness Compressor 1 / 2 Settings and Diagnostics Parameters for Next Maintenance CalculationGeneral Maintenance Settings Fans / Heaters / Humidifier Settings and DiagnosticsNo Teamwork Teamwork ModeTeamwork Modes Application of Teamwork ModesTeamwork Mode 1 with two cooling units Standby and Cascade Standby Rotation Typical Standby Lead/Lag FunctionPlacement of Cooling Units U2U Hardware Cables and Network SwitchMinimum Network Switch Requirements Wiring for Unit-to-Unit Communications-U2U Sample Liebert iCOM network configurationsLiebert iCOM U2U Ethernet Network Combining Large and Small Displays on a U2U Network Wiring a Liebert iCOM U2U Network Small DisplaysLarge Displays Wall-Mount Large DisplayWiring a small display for stand-alone operation Wiring a large display for stand-alone operation Liebert vNSA Ports available for connecting Liebert iCOM control devices298 84mm 305mm 14.25 362mm DPN001136 Rev Location Considerations Necessary Mounting ItemsMounting Instructions Liebert iCOM display dimensions Event log parameters Spare Part List-Large Display OnlySetpoints parameters Spare part list parameters-large display onlySensor data Set alarms parametersActive Alarms Active alarms parametersDisplay setup parameters Total run hours parameters Timer parameters-Sleep ModeService contacts parameters Service Menu Parameters Unit diary parameters Unit Diary-Large Display OnlyMaintenance / wellness settings parameters Standby settings / lead-lag parametersWellness COMP2 Wellness HEAT2 Diagnostics / service mode parameters ALM REL 7of Delay Enable Disab Enable Disab Comp 1 Overload Unit X Disconnected WRN Loss of Power LOP MSG, WRN, ALM Call Service MSG, WRN, ALM High Temperature Sensor calibration / setup parameters System / network setup parameters-large display only GBP Network setup parametersStatic RAM Not Available, Invalid, OK HUM Steam Options setup parametersService contact info parameters Service Menu Parameters Service Menu Parameters Page That Ne tIti Ti n