Danfoss FC 102 Design Manual

Also see for VLT HVAC Drive FC 102: Operating instructions Service guide Programming guide Installation guide Installation guide

Contents

6.5.7 Electrical Installation, Control Cables130BD552.123-phasepowerinputDC bus Switch ModePower SupplyMotorAnalog OutputInterfacerelay1relay2ON=TerminatedOFF=OpenBrakeresistor91 (L1)92 (L2)93 (L3)PE88 (-)89 (+)50 (+10 V OUT)53 (A IN)54 (A IN)55 (COM A IN)0/4-20 mA12 (+24 V OUT)13 (+24 V OUT)37 (D IN)18 (D IN)20 (COM D IN)10 V DC15 mA 200 mA+ - + -(U) 96(V) 97(W) 98(PE) 99(COM A OUT) 39(A OUT) 42(P RS-485) 68(N RS-485) 69(COM RS-485) 610 V5VS8010/4-20 mARS-485RS-48503+10 V DC0/-10 V DC -+10 V DC+10 V DC0/4-20 mA0/-10 V DC-240 V AC, 2 A24 V DC020105040624 V (NPN)0 V (PNP)0 V (PNP)24 V (NPN)19 (D IN)24 V (NPN)0 V (PNP)2724 V0 V(D IN/OUT)0 V (PNP)24 V (NPN)(D IN/OUT)0 V24 V2924 V (NPN)0 V (PNP)0 V (PNP)24 V (NPN)33 (D IN)32 (D IN)1 2ONA53ON21A54ON=0/4-20 mAOFF=0/-10 V DC -+10 V DC95P 5-0021ONS801(R+) 82(R-) 81: Chassis: PE**240 V AC, 2 A400 V AC, 2 A* : Ground 1: Ground 2: GroundIllustration 6.55 Basic Wiring SchematicA=Analog, D=Digital*Terminal 37 (optional) is used for Safe Torque Off. For Safe Torque Off installation instructions, refer to the Safe Torque OffOperating Instructions for Danfoss VLT® Frequency Converters.**Do not connect cable screen.Very long control cables and analog signals may in rare cases and depending on installation, result in 50/60 Hz groundloops due to noise from mains supply cables. If this occurs, it may be necessary to break the screen or insert a 100 nFcapacitor between screen and chassis. The digital and analog inputs and outputs must be connected separately to thecommon inputs (terminal 20, 55, 39) of the frequency converter to avoid ground currents from both groups to affect othergroups. For example, switching on the digital input may disturb the analog input signal.Electrical Installation Design Guide112 Danfoss A/S © Rev. 06/2014 All rights reserved. MG11BC0266