Emerson iCOM user manual Event Types and Properties, Time Delay, Enable or Disable

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Operation

3.7.6Event Types and Properties

Liebert iCOM events are used to inform the user of cooling unit operational status. All events are recorded in the Event Log, which is in the User Menu. The user can change the type (alarm, warn, message) and time delay of some events and can also enable or disable some events. These event set- tings are in the Service Menu under Set Alarms, pages 3 to 7. If an event has a safety function (high pressure, low pressure, main fan overload, etc.) the safety function will be executed in any case, inde- pendent of the selected event type or if enabled or disabled. The timing will function as set.

NOTE

Not all critical event properties can be adjusted.

Event Types

•Message: If this event occurs, it will only be entered into the event log.

•Warning: If this event occurs, a warning will be generated and entered into the event log. The general alarm relay will be activated only if parameter Warning Activates Alarm Relay located in the Service menu under Alarm Setup is set to Yes (Yes is the default setting from the factory)

•Alarm: If this event occurs, an alarm will be generated and entered into the event log. An alarm does not necessarily switch off the whole cooling unit; it depends on which alarm occurs. If a standby unit is set, any alarm will stop the faulty unit and ask the standby unit to start. Standby activation is achieved on alarms ONLY; messages or warnings will not start the standby unit. For more on standby units, see 4.0 - Teamwork.

Time Delay

Delays the event reaction once it is triggered. The time delay applies to safety functions and is entered in seconds.

Enable or Disable

Disabled events do not show up in the event log, on the display or on monitoring devices. Also, the common alarm relay will not be activated if a disabled alarm occurs. Safety functions, such as lockout compressor in case of high pressure are still performed.

NOTE

Once a disabled event (set to Warn or to Alarm) becomes active, it will lock itself. Disabled events may be reset only through the menu item Reset Disabled Alarms.

NOTE

The value of the external delay includes the internal delay: external delay = setting – internal delay.

The minimum setting of the external delay is the value of the internal delay. This is valid only for values marked with *.

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Contents Liebert iCOM Page Table of Contents Teamwork Installing a Liebert Icom UNIT-TO-UNITNETWORKMounting a Large Display on a Wall Figures Tables Features Large and Small DisplaysESC Keyboard icons and functions Icon Key Name FunctionStatus menu, large display, graphical view Accessing Submenus Accessing Submenus on Small DisplaysAccessing Submenus on Large Displays Navigating Through the Liebert iCOM MenusEntering a Password Menu tree-Small display, stand-alone or networkedStatus Menu System View Status Menu Unit 1 View User Menu Service Menu UnitAdvanced Menu Unit Viewing Multiple Units with a Networked Large Display Service Menu Unit #Advanced Menu Unit # SET User menu icons Service menu icons Single Unit Functions Unit/Fan Control Start StopLoss of Power Alarm Fan Alarm / Fan Protection SettingsVSD Setpoint VSD Fan Speed Setting AutorestartHigh Pressure Alarm Pump DownCompressor Timing-Units With Two Compressors Digital Scroll High TemperatureCompressor Sequencing Motorized Ball Valve in Digital Scroll Units Service Offset-Changing System Pressure SettingsMBV Operation After Compressor is Turned Off Temperature Proportional Band Temperature proportional bandCompressor Control Compressor Proportional BandsOne Single-Step Compressor Without Unloaders-One-Step Two Single-Step Compressors Without Unloaders-Two-StepTwo Compressors With Unloaders-Four-Step Two compressors with unloaders four-stepDigital Scroll Compressors Digital scroll capacity modulation, 10-100% variableTemperature Control-Second Cooling Source Differential Temperatures / Controls Comparator CircuitDelta T Temperature Difference Between Room and Glycol Chilled Water ControlSecond cooling source and compressorized cooling Temperature Control-Reheat Reheat configuration typesGlycool Cooling-Free-Cooling Dual Cooling SourceOff ½ Proportional Band Decreasing Temperature Heat On ½ Dead Band 100%Tight Mode SCR ReheatStandard Mode Humidification Dehumidification Humidity ControlHumidification Parameters for infrared humidifier control Humidification Infrared HumidifierExternal Humidifier Control-Optional Dehumidification With Comp settings DehumidificationDehumidification Low Limit Dehumidification Compressor QuantityControl Types Temperature and Humidity Control TypesReheat During Dehumidification Humidity Sensor Reading Control Types High and Low, Temperature and Humidity Events Supply Limit-OptionalUser Inputs / Customer Inputs Customer inputsTime Delay Enable or DisableEvent Types and Properties Event TypesMain FAN Overload Possible Event Notifications Event notifications-large or small displayCalculation of Next Maintenance and Diagnostics Next Maintenance CalculationCalculating Unit Wellness Parameters for Next Maintenance Calculation General Maintenance SettingsFans / Heaters / Humidifier Settings and Diagnostics Compressor 1 / 2 Settings and DiagnosticsTeamwork Mode Teamwork ModesApplication of Teamwork Modes No TeamworkTeamwork Mode 1 with two cooling units Standby Rotation Typical Standby Lead/Lag Function Standby and CascadeU2U Hardware Cables and Network Switch Placement of Cooling UnitsMinimum Network Switch Requirements Sample Liebert iCOM network configurations Wiring for Unit-to-Unit Communications-U2ULiebert iCOM U2U Ethernet Network Wiring a Liebert iCOM U2U Network Small Displays Large DisplaysWall-Mount Large Display Combining Large and Small Displays on a U2U NetworkWiring a small display for stand-alone operation Wiring a large display for stand-alone operation Ports available for connecting Liebert iCOM control devices Liebert vNSA298 84mm 305mm 14.25 362mm DPN001136 Rev Necessary Mounting Items Location ConsiderationsMounting Instructions Liebert iCOM display dimensions Spare Part List-Large Display Only Setpoints parametersSpare part list parameters-large display only Event log parametersSet alarms parameters Sensor dataActive alarms parameters Active AlarmsDisplay setup parameters Timer parameters-Sleep Mode Total run hours parametersService contacts parameters Service Menu Parameters Unit Diary-Large Display Only Unit diary parametersStandby settings / lead-lag parameters Maintenance / wellness settings 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 Network setup parameters GBPStatic RAM Not Available, Invalid, OK Options setup parameters HUM SteamService contact info parameters Service Menu Parameters Service Menu Parameters Page Ne t ItiTi n That