Baelz Automatic BA 373-E45 - Digital Positioner 7020 A Operations; Intended Use of Positioner

BA_373-E45_05_DEF_MJ_2119
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Motorized Linear Actuator baelz 373-E45
8. DIGITAL POSITIONER 7020A
8.1 Intended use
Thedigitalpositionerbaelz 7020Acontrolstheactuatoraccordingtothevalueofthecontrol
signal:0(2)-10V,0(4)-20mA
Toensureuseforthepurposeintended,checkthattheabovetypeidenticationcorresponds
tothenameplateonthepositionerbeforestartinganyactivities.Thetechnicalspecicationsof
thepositionerandthepowersupplyrequirementsaretheindicatedonthenameplate.
Anyuseotherthantheintendedusestatedabove,usefordifferenttasks,andoperation
withotherpowersourcesthanthosepermitted,isconsideredtobeimproperuse.Incaseof
improperuse,theoperatorshallbesolelyliablefortheriskpresentedtopersonsandtothe
deviceaswellastootherproperty!
Theintendedusealsocomprisescompliancewiththeaccidentpreventionregulationsand
theDINVDEstandardsoftheGermanInstituteforStandardizationandtheAssociationfor
Electrical,Electronic&InformationTechnologies.Italsoimpliesworkinginaccordancewiththe
safetyrequirementswhenperformingallactivitiesdescribedintheseoperatinginstructions,
underconsiderationofgeneraltechnicalrulesandregulations.
8.2 Operational modes and operating options
For further information and additional functions, see baelz 7020 operating instructions.
8.2.1 Standard operation using DIP switches
TheDIPswitchescanbeusedtocarryoutstandardcongurationsandoperations(see
section 8.4
).
WhenDIPswitch11issetto0,the7020Aisinthestandardoperationalmode.
Instandardmode,allDIPswitchesareactiveandthefunctionsoftheBaelz7020Acanbe
individuallyadapted.Functionswhicharepredenedandunalterableinstandardmodeare
describedinchapter6.1ofthebaelz7020operatinginstructions.
8.2.2 Standard operation using Modbus VT100 or direct addressing
Instandardmode,theBaelz7020AcanbeoperatedusingModbusVT100.Forthis,avirtual
7020Adisplayandavirtual7020Akeypadaretransmittedtoauserinterface.Modbusdirect
addressing,e.g.fromabuildingautomationsystem,enablesaccesstostatusinformationand
allowsoperationandconguration.(Seebaelz7020operatinginstructions,AppendixA).The
settingsgivenbytheDIPswitchesremainactive.ValueswhichareonlyrelevantinModbus
modecanbeadjustedinstandardmode,butonlytakeeffectinModbusmode.
8.2.3 Modbus mode
WhenDIPswitch11issetto1,theBaelz7020AisinModbusmode.InModbusmode,the
7020AisatitsmostexibleandcanbeconguredandoperatedusingeitheraModbusVT100
orModbusdirectaddressing,forexampleinabuildingautomationsystem.Seeseparate
operatinginstructions"Baelz7020DigitalPositioner-OperatingInstructionsforModbusmode"
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