Emerson DH, VH, DE, VE manual Main Menu AG-Operating Status, Main Menu AG-View/Set Control Setpoints

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Advanced Microprocessor with Graphics Control Setup

4.5Main Menu (AG)—Operating Status

The Operating Status is intended to provide the user with displayed information concerning what the control is calling for the system to do.

NOTE

There may be some time lapse before a specific component matches the displayed number.

For example: The display indicates the chilled water valve is 68% open. On a new call for cooling, it takes several seconds for the valve to travel from full closed to 68% open. So when the display reads 68%, it may take a few seconds for the valve to actually open 68%. Also, if the display indicates a com- pressor is operating but the compressor has not turned on yet, it may be off because of the short cycle control (see 5.3.1 - Short Cycle Control).

4.6Main Menu (AG)—View/Set Control Setpoints

Control setpoints can be reviewed and/or changed through the display. The following table lists the default setpoints and their allowable ranges.

Table 8

Default control and alarm setpoints

 

 

 

 

 

Setpoint

Default

Range*

 

 

 

Temperature Setpoint

72°F

40 to 90°F (5 to 32°C)

 

 

 

Temperature Sensitivity

2.0°F

1 to 9.9°F (0.6 to 5.6°C)

 

 

 

Humidity Setpoint

50%

20 to 80% RH

 

 

 

Humidity Sensitivity

5%

1 to 30% RH

 

 

 

High Temperature Alarm

80°F

35 to 95°F (2 to 35°C)

 

 

 

Low Temperature Alarm

65°F

35 to 95°F (2 to 35°C)

 

 

 

High Humidity Alarm

60%

15 to 85% RH

 

 

 

Low Humidity Alarm

40%

15 to 85% RH

 

 

 

 

*Unit will operate at these conditions but will not control to these extremes of conditions.

4.7Main Menu (AG)—Setup System

Selecting SETUP SYSTEM will step to the following menu:

•SETUP OPERATION

•SELECT OPTIONS

•CALIBRATE SENSORS

•CALIBRATE VALVE ACTUATOR

•SELECT CONTROL ALGORITHM

•SELECT HUMIDITY SENSING MODE

•SET STATUS DISPLAY

•CHANGE PASSWORDS

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Contents Liebert Deluxe System/3 Page Table of Contents Main Menu AG-Run Diagnostics Temperature Control Alarm Descriptions and SolutionsSystem Testing Figures Page Introduction System DescriptionGlycool Chilled Glycol Cooling Systems Chilled Water SystemsDual Source Cooling Systems Additional Considerations for Upflow Units Initial START-UP ProcedureBasics Advanced Microprocessor Controls SetupDisplay the Main Menu-AM Control Advanced microprocessor AM control menu Operating Status Main Menu AM-Status/Alarm DataActive Alarms Alarm History LogAnalog Sensors Main Menu AM-Setpoints/SetupSetup System Selection Default control and alarm setpointsSetup functions and factory default values Setup OperationFunction Default Range Calibrate Sensors Show DIP SwitchesDIP switch settings Select OptionsSelect Control Type Setup AlarmsAlarm Default Delay seconds Alarm default time delayAnalog Setup Standard Alarm MessagesHumidity Control Method Show Inputs Run DiagnosticsSet Status Display Calibrate ActuatorTest Control Board Change PasswordsMain Menu AM-Date and Time Test OutputsMain Menu AM-Status Display Load Control FeaturesControl Circuit Board Control Outputs DIP SwitchesCommunications Nonvolatile MemoryView/Change Functions Monitor functionsAdvanced microprocessor with graphics control panel Advanced Microprocessor with Graphics Control SetupAdvanced microprocessor with graphics AG control menu Display the Main Menu-AG Control Main Menu AG-View/Set AlarmsMain Menu AG-Status Display Alarm Seconds Default Time DelayInstallation-LT750 DIP Switch Settings Set Up Custom AlarmsStandard Custom Alarm Messages Setup Water Detect Floor PlanMain Menu AG-Operating Status Main Menu AG-Setup SystemMain Menu AG-View/Set Control Setpoints IR Flush Overfill infrared humidifiers only Cold Start DelayAuto Restart Delay Default Settings and RangesSelect Control Algorithm Calibrate Valve ActuatorSelect Humidity Sensing Mode Main Menu AG-Run DiagnosticsShow Inputs Main Menu AG-Date and Time Dehumidification with Normal or Delayed ReheatMain Menu AG-Plot Graphs Main Menu AG-Analog/Digital Inputs View 24 Hour Run Time History Set Up Digital InputsMain Menu AG-View Run Hours Log Read Digital InputsControl Circuit Board On/Off Status Time View Only Silence Alarm Response by Control TYPE-ADVANCED Microprocessor Controls Temperature ControlHeating Operation Electric Reheat Glycool CoolingDual Cooling Source Chilled Water CoolingControl Types Proportional Control Humidity ControlHot Water/Steam Heat Dehumidification/Humidification Required, in Percent %Chilled Water Dehumidification Dual Cooling Source DehumidificationHumidification Operation System Activation Suggested System Tuning Procedure Intelligent Control Load Control Features Additional connections available after unit delivery Connecting the Analog SensorsAnalog Sensors Changing factory-set sensor inputsWater Detection Display SetupPhysical Connections Calibration View/Change Functions Compressor Overload Standard AlarmsAlarm Descriptions and Solutions Change FilterHumidifier Problem Infrared Humidifiers Custom Alarms Only With Advanced ControlsHigh Temperature High Temperature and Low Temperature SimultaneouslyLow Humidity Loss of PowerLow Temperature Loss of Air FlowOptional/Custom Alarms Proportional Heating/Cooling/ Dehumidification System TestingComponent Operation and MAINTENANCE, Checks and Adjustments Environmental Control FunctionsFirestat Fan Safety SwitchElectric Panel Control Transformer and FusesBelts FiltersBlower Package Fan Impellers and BearingsElectronic Variable Speed Drive Inverter Refrigeration SystemCompressor Oil Level Thermostatic Expansion Valve Operation Suction PressureDischarge Pressure Suction SuperheatHot Gas Bypass Valve Operation AdjustmentAir Cooled Condenser Outdoor fan/condenser configurationWater/Glycol Cooled Condensers Shell and Tube Condensers Adjustment Johnson Controls/Penn Johnson valvesTesting Function of Valve Glycol Solution MaintenanceMechanical Failure Compressor ReplacementElectrical Failure Humidifier Compressor Replacement ProcedureInfrared Humidifier Humidifier lamps Autoflush Infrared Humidifier Cleaning SystemChanging Humidifier Lamps Autoflush OperationSteam generating humidifier Steam Generating HumidifierReplacing the Canister ControlsHumidifier canister part numbers Faults-canister generator humidifierPriority Name LED Indication Description Hz Models Lbs/hr kg/hr Circuit Board AdjustmentsSteam generating humidifier capacity CapacityUnit Rated Rated Values Voltage Capacity Electric ReheatVoltage AMP Set Pt Symptom Possible Cause Check or Remedy TroubleshootingBlower troubleshooting Chilled water troubleshootingCompressor and refrigeration system troubleshooting Compressor and refrigeration system troubleshooting Glycol pumps troubleshooting Dehumidification troubleshootingAdjustments on Humidifier-steam generator troubleshootingReheat troubleshooting Humidifier-infrared troubleshootingMaintenance Inspection CHECKLIST-MONTHLY Maintenance Inspection CHECKLIST-SEMIANNUAL That Ne tIti Ti n

VE, DH, VH, DE specifications

Emerson is a well-known brand in the field of automation solutions, offering a range of products that cater to various industries. Among its diverse portfolio, Emerson’s products like DE (Digital Electronics), VH (Variable Frequency Drives), DH (Distributed Control Systems), and VE (Valve Positioners) stand out for their advanced features, cutting-edge technologies, and unique characteristics.

Digital Electronics (DE) from Emerson represents the backbone of modern automation systems. These devices are characterized by their highly reliable digital communication capabilities, providing robust solutions for process monitoring and control. DE products integrate seamlessly with various automation platforms, allowing for easy data exchange and system interoperability. The advanced analytics embedded in these systems enable predictive maintenance strategies, enhancing overall operational efficiency.

Variable Frequency Drives (VH) are integral to motor control technologies, maximizing energy efficiency in various applications. Emerson's VH drives are designed for flexibility, supporting multiple motor types and configurations. These drives utilize pulse width modulation (PWM) technology, allowing for precise speed control and improved application performance. Their built-in protection features help extend motor life, prevent downtime, and reduce maintenance costs. Furthermore, the user-friendly interfaces of VH drives facilitate quick setup and troubleshooting.

Distributed Control Systems (DH) from Emerson provide a holistic approach to managing complex industrial processes. They enable centralized control while ensuring that local operations continue seamlessly. DH systems are characterized by their modular architecture, making them highly scalable and adaptable to changing operational needs. Advanced control algorithms within these systems help optimize processes, ensuring maximum productivity. Additionally, their enhanced cybersecurity features protect critical industrial operations from potential threats.

Emerson's Valve Positioners (VE) play a crucial role in regulating flow and pressure in various processes. These devices provide precise positioning capabilities, enhancing the performance of control valves. The VE systems incorporate smart technologies such as adaptive control and diagnostics, allowing them to self-tune and deliver accurate performance over time. Their compact design and robust build ensure they operate effectively in challenging environments.

In summary, Emerson's DE, VH, DH, and VE offerings embody the latest innovations in automation technology. Their main features, including digital communication, energy efficiency, scalability, and precision control, cater to the diverse demands of modern industries. With these products, Emerson not only enhances operational efficiency but also paves the way for intelligent automation solutions that are crucial for the future of industrial processes.
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