Nidec Digitax HD M75 Series Installation And Technical Manual

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Nidec Digitax HD M75 Series Installation And Technical Manual Manual pdf 16 page image

Safety information Product information Mechanical installation Electrical installation Multi axis system design Technical data16 Digitax HD M75X Series Installation and Technical GuideIssue Number: 53 Mechanical installation3.1 Safety information3.2 Planning the installationThe following considerations must be made when planning the installation:3.2.1 AccessAccess must be restricted to authorized personnel only. Safety regulations which apply at the place of use must be complied with.3.2.2 Environmental protectionThe drive must be protected from:• Moisture, including dripping water or spraying water and condensation. An anti-condensation heater may be required, which must be switched offwhen the drive is running.• Contamination with electrically conductive material• Contamination with any form of dust which may restrict the fan, or impair airflow over various components• Temperature beyond the specified operating and storage ranges• Corrosive gassesThe product is supplied with a vent cover to prevent debris (e.g. wire off-cuts) from entering the drive. The vent cover must be removed before firstpower up.3.2.3 CoolingThe heat produced by the drive must be removed without its specified operating temperature being exceeded. Refer to section 3.10 Enclosure sizingon page 30.3.2.4 Electrical safetyThe installation must be safe under normal and fault conditions. Electrical installation instructions are given in Chapter 4 Electrical installation onpage 47.3.2.5 Fire protectionThe drive enclosure is not classified as a fire enclosure. A separate fire enclosure must be provided.For installation in the USA, a NEMA 12 enclosure is suitable.For installation outside the USA, the following (based on IEC 62109-1, standard for PV inverters) is recommended.Enclosure can be metal and/or polymeric, polymer must meet requirements which can be summarized for larger enclosures as using materialsmeeting at least UL 94 class 5VB at the point of minimum thickness.Air filter assemblies to be at least class V-2.The location and size of the bottom shall cover the area shown in Figure 3-1. Any part of the side which is within the area traced out by the 5° angle isalso considered to be part of the bottom of the fire enclosure.Follow the instructionsThe mechanical and electrical installation instructions must be adhered to. Any questions or doubt should be referred to the supplier of theequipment. It is the responsibility of the owner or user to ensure that the installation of the drive and any external option unit, and the wayin which they are operated and maintained, comply with the requirements of the Health and Safety at Work Act in the United Kingdom orapplicable legislation and regulations and codes of practice in the country in which the equipment is used.Stored chargeThe drive contains capacitors that remain charged to a potentially lethal voltage after the AC supply has been disconnected. If the drivehas been energized, the AC supply must be isolated at least ten minutes before work may continue.Normally, the capacitors are discharged by an internal resistor. Under certain, unusual fault conditions, it is possible that the capacitorsmay fail to discharge, or be prevented from being discharged by a voltage applied to the output terminals. If the drive has failed in a mannerthat causes the display to go blank immediately, it is possible the capacitors will not be discharged. In this case, consult Nidec IndustrialAutomation or their authorized distributor.Competence of the installerThe drive must be installed by professional assemblers who are familiar with the requirements for safety and EMC. The assembler isresponsible for ensuring that the end product or system complies with all the relevant laws in the country where it is to be used.EnclosureThe drive is intended to be mounted in an enclosure which prevents access except by trained and authorized personnel, and whichprevents the ingress of contamination. It is designed for use in an environment classified as pollution degree 2 in accordance withIEC 60664-1. This means that only dry, non-conducting contamination is acceptable.WARNINGWARNINGWARNINGWARNINGNOTE