3vacon • 70 Descriptions of VACON® option boardsLocal contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/Connecting Temperature sensors to OPTBH option board:Use shielded cables and connect the cable shield to grounding clamp in the drive.Allowed sensor configurations are shown on figures below:Two-wire configuration Three-wire configurationTwo-wire configuration Three-wire configurationOPTBH board parametersTable 37. PT100, KTU84 and Ni1000 (Ni1000 DIN) accuracy for OPTBHCable length (m) 3-wire 2-wire Accuracy (°C)≤300 x -1 < x < 1150 x -1 < x < 550 x -1 < x < 3Code Parameter Min Max Unit Default ID Description7.x.1.1 Sensor 1 type 0 6 00 = No Sensor1 = PT1002 = PT10003 = Ni10004 = KTY845 = 2 x PT1006 = 3 x PT1007.x.1.2 Sensor 2 type 0 6 0 See above7.x.1.3 Sensor 3 type 0 6 0 See above