HP Performance Optimized Data Center (POD) 20cp manual PI parameter

Page 56

The Controller Settings screen displays the control setpoints for each major system component.

You can set the following configuration options:

PI settings temperature

PI settings pressure

You must select Save to store the parameter changes in the system configuration file. If you do not save your changes, the old parameters stored in the configuration file reload when the system starts.

Item

Description

 

 

Temperature setpoint (hot

Sets the temperature setpoint for the hot aisle

aisle)

 

Pressure setpoint

Sets the pressure setpoint

PI parameter P

Proportion gains influence the rate of change in the position of the flow control

 

valve or the fan speed in order to reach the pre-determined setpoints

 

 

PI parameter I

Integral gains influence the rate of change in the position of the flow control valve

 

or the fan speed in order to reach the pre-determined setpoints.

PI integration time

Used by the low pass filter to even the measurement values out

 

 

Environmental control system 56

Image 56
Contents Abstract Part Number March EditionPage Contents Fire protection system Humidifier Controlled access Networking Connection portals Demarcation box Fire boxPeriodic maintenance Sample HP POD 20c maintenance schedule Before you contact HP HP contact informationOperator safety Component safetyOverview Before you beginFire detection and suppression Environmental considerationsParts and part number identification Component identificationStructural component identification Life safety component identification Internal life safety componentsEnd view shown Component Description Page Main breaker locations Electrical power component identificationFront view shown Component Description Component identification Front view shown Electrical safety label Description Electrical safety label Description Control cabinet component identification HP POD 20c racks Component DescriptionEPO system Life safety systemsLife safety overview ECS touchscreen and EPO indicators Battery backup during an EPO event Component Indicator Color DescriptionEPO modes EPO accidental activationManual fire button Vesda air sampling smoke detection systemOptional Fire protection system Fire system operator panel Fire alarm indicatorsFire suppression system Fire suppression sequence of operations Emergency egress Power, electrical, and controls Power safetySite electrical system GroundingLightning protection Power feeders Feature SpecificationCapacities Electrical and mechanical cooling capacitiesElectrical panels Arc flash safetyPower distribution electrical busway system Wire color code Front view shown Feature SpecificationWiring system-Critical IT power feeds and main power feeds Panel schedulesWire color Label Description Electrical buswaysDrop boxes Power configurations Rack powerHP POD 20c lighting Environmental control system overview Using the ECSEnvironmental control system Pressure sensors SensorsHumidity sensors Temperature sensors Environmental control system Facility chilled water sensors Connecting to the ECSFacility connections to ECS Configuring the ECS Managing the ECS from the HP POD 20cEnvironmental control system Logging in remotely to the ECS Enter ipconfig Locating the ECS IP addressesPassword protection Navigating the ECS interfaceLogging in to the ECS touchscreen Button DescriptionEnter your ECS password Click OK Overview screenInformation Description Basic System Configuration screen Status Overview screenCurrent temperature parameters appear on the related buttons Environmental control system Configuring the humidity alarm parameters Configuring the cold aisle temperature alarm parametersConfiguring the hot aisle temperature alarm parameters Configuring the differential pressure alarm parametersSetting the fan controls for each fan control zone Advanced System Configuration screenSetting the humidifier control Setting the start-up alarm reset delay Calibrating the differential pressure sensors Setting the logging configurationCalibrating the flowmeter Controller Settings screen Setting the switchboard serial numberSetting the HP POD 20c serial number Loading default settingsPI parameter ECS alarms Fan failureSafety and access control alarms Alarm Meaning SolutionHP POD 20c cooling system theory of operation Water supply temperatureCooling system Water quality requirements and specifications Cooling system components Fans Condensation management DrainsHot aisle drains Cold aisle drainsLeak detection IT networking and communications NetworkingConnection portals Demarcation boxFire box Controlled access Optional componentsFire protection system HumidifierPower up checklist Power up procedureStandard HP POD 20c power up procedure Cold weather HP POD 20c power up procedure Standard power up procedureCold weather power up checklist POD heating procedure Power down procedure Specifications General HP POD 20c specificationsElectrical specifications Features SpecificationsRack specifications Environmental specificationsWater specifications Standard HP POD 20c racks AT978A Feature SpecificationFeature Specification Sample HP POD 20c maintenance schedule MaintenancePeriodic maintenance HP contact information Contacting HPBefore you contact HP HP POD 20c regulatory compliance Safety and IEC complianceRegulatory information Safety and regulatory compliance Warranty informationGlossary Personal protective equipment Power distribution unitProgrammable logic controller Rack units Enclosure of sufficient size to enable entry of personnelUninterruptible power system Documentation feedback EPO panel Environmental specifications EPO accidental activationIndex Vesda
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