KA IMO 2021 6 V2.1

34 systemair
Wiring diagram
1,2 PE green/yellow Protective earth
3 L1 Black Power supply
4 L2 Black Power supply
5 L3 Black Power supply
6 NC White 1
Statusrelay,oatingstatuscontact,breakforfailure,contactrating250VAC/2A(AC1)/min.10mA;reinforced
insulation on supply side and basic insulation on control interface side
7 COM White 2
Statusrelay,oatingstatuscontact,breakforfailure,contactrating250VAC/2A(AC1)/min.10mA;reinforced
insulation on supply side and basic insulation on control interface side
8 0-10V Yellow Analoginput(setvalue),0-10V,Ri=100kΩ,adjustablecurve,SELV
10 RSB Brown RS485interfaceforMODBUS,RSB;SELV
11 RSA White RS485interfaceforMODBUS,RSA;SELV
12 GND Blue Reference ground for control interface, SELV
13 +10 Red
Fixedvoltageoutput10VDC,+10V±3%,max.10mA,short-circuit-proofpowersupplyforexternaldevices(e.g.pot),
SELV
Check before commissioning
• Themountingofthefanontheframeandthemountingoftheelectricmotoronthetensioningbracket,
• theparallelismofthemotordriveshaftandofthefanshaft;inthecaseofdeviation,adjusttheelectricmotorby
meansofthetensioningbracket,andoncetheadjustmenthasbeencompleted,rmlytightenallthescrews,
• the mounting of the rotor on the shaft and its free rotation in the casing,
• the mounting of the vibration isolators,
• the correct installation of the grounding,
• the correct installation of the electrical connections and their operation (fuse sizes, contactors, thermal protection),
• for the presence of any tools or other foreign materials in the section,
• the mounting of all the covers and doors.
• Thermalprotectionisessentialforthesafetyoftheelectricmotor,therefore,beforestartingthemotor,checkif
ithasthecorrectsettingsforthenominalcurrentofthemotor,andcheckitsoperation.Oncethistesthasbeen
successfully completed, seal the thermal protection device.