Danfoss VLT HVAC Drive FC 102 Operating Manual

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

130BE143.10StopStartSpeed Line Power MotorControlIllustration 4.3 Example of Proper Electrical Installation UsingConduitNOTICEEMC INTERFERENCEUse shielded cables for motor and control wiring, andseparate cables for mains input, motor wiring, andcontrol wiring. Failure to isolate power, motor, andcontrol cables can result in unintended behavior orreduced performance. Minimum 200 mm (7.9 in)clearance between mains input, motor, and controlcables is required.4.5 AccessAll terminals to the control cables are inside the drivebelow the LCP. To access, either open the door (E1h andE2h) or remove the front panel (E3h and E4h).4.6 Motor ConnectionWARNINGINDUCED VOLTAGEInduced voltage from output motor cables that runtogether can charge equipment capacitors, even with theequipment turned off and locked out. Failure to runoutput motor cables separately or use shielded cablescould result in death or serious injury.• Comply with local and national electrical codesfor cable sizes. For maximum wire sizes, seechapter 8.1 Electrical Data.• Follow motor manufacturer wiring requirements.• Motor wiring knockouts or access panels areprovided at the base of IP21 (NEMA1/12) andhigher units.• Do not wire a starting or pole-changing device(for example Dahlander motor or slip ringasynchronous motor) between the frequencyconverter and the motor.Procedure1. Strip a section of the outer cable insulation.2. Position the stripped wire under the cable clampto establish mechanical fixation and electricalcontact between the cable shield and ground.3. Connect the ground wire to the nearestgrounding terminal in accordance with thegrounding instructions provided inchapter 4.3 Grounding, see Illustration 4.4.4. Connect the 3-phase motor wiring to terminals96 (U), 97 (V), and 98 (W), see Illustration 4.4.5. Tighten the terminals in accordance with theinformation provided in chapter 8.8 ConnectionTightening Torques.Electrical Installation Operating GuideMG16D402 Danfoss A/S © 02/2017 All rights reserved. 154 4