ZIEHL-ABEGG Icontrol FXDM Series Operating Instructions Manual
Also see for Icontrol FXDM: Operating instructions
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Contents
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5 Electrical installation5.1 Safety precautionsDanger due to electric current• Work on electric components may only be carried out by trained electricians or bypersons instructed in electricity under the supervision of an electrician in accordancewith electrical engineering regulations.• It is forbidden to carry out work on electrically live parts. Even after disconnection, thedc-link is still live. Always wait at least 3 minutes.• A second person must always be present when working on energized parts or lines whodisconnects in case of emergency.• Inspect electrical equipment periodically: retighten loose connections – immediately re-place damaged lines and cables.• Always keep switch cabinets and all electrical supply facilities locked. Access is onlyallowed for authorized persons using a key or special tool.• Operating the device with the housing cover removed is prohibited because energized,exposed parts are present inside the device. Disregarding this regulation can lead tosevere personal injury.• The required protective earth connection is established using screws between the hous-ing parts in metal terminal space covers and housing casings. Commissioning is onlypermissible after these screws have been properly attached!• Metal screwed-connections are not permitted in plastic housing parts because there isno potential equalization.• Never clean electrical equipment with water or similar liquids.InformationThe respective connections are represented in the enclosure of this manual ( Connection diagram)!5.2 EMC-compatible installation5.2.1 Interference emission and installation of cablesIn order to prevent faults attributable to interference and to ensure compliance with the radio interfer-ence level, the connecting leads must be kept as short as possible both in the motor terminal box aswell as in the controller. Spacing between supply cables, motor cable and signal cable should therebybe kept as large as possible.The so-called “pig-tails” of the screen are to be avoided when connecting screened cables. Thescreen shall be laid close up to the terminals and taken from here to the protective conductorconnection by the shortest possible route, laid flat (low induction) and without loops.When installing the controller in a switching cabinet, attention shall be paid that “live” (interference)cables and interference-suppressed cables are not routed in the duct.5.2.2 Motor cableThe screening of the motor cables (U1, V1, W1, PE) must be two-fold (both ends), i.e. connected tothe protective conductor at the controller and at the motor.The use of a screened motor cable of max. 10 m in length will ensure compliance with the limitingvalue class B in accordance with EN 55011.The screening of the thermostats “TB” or thermistor “TP” connection cable for motor protection mayonly be connected to the protective conductor at one end at the controller. Because of possiblecoupling unbalances they may not be routed in the same cable harness as the motor cables.5.2.3 Control cablesPay attention to sufficient distance from powerlines and motor wires to prevent interferences. Thecontrol cable may not be longer than 30 m. Screened control cables must be used when the cablelength is longer than 20 m. When using a shielded cable connect the shielding to one side only, i.e.only to the control unit with the protective ground (keep cable short and with as little inductance aspossible!).Operating Instructions Icontrol – model series FXDM Electrical installationL-BAL-E036-GB 1422 Index 008 Part.-No. 00154773-GB11/96 |
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