Altivar 312 Variable Speed Drives Page 48 Accessories and Options

48 Altivar 312 variable speed drives Accessories & Options EMC filters Specifications Conformity to standards EN 133200 Degree of protection IP 21 and IP 41 on upper part Maximum relative humidity 95% non-condensing, no dripping water conforming to IEC 60068-2-3 Ambient air temperature around the device OperationF 14 F to 140 F (-10 C to +60 C) StorageF 13 F to 158 F (-25 C to +70 C) Maximum operating altitude Without derating ft. 3300 ft. (1000 m) Above this, derate the current by 1% for every additional 330 ft. (100 m) Vibration resistance Conforming to IEC 60068-2-6 1.5 mm peak to peak from 3 to 13 Hz 1 gn peak from 13 to 150 Hz Shock resistance Conforming to IEC 60068-2-27 15 gn for 11 ms Maximum nominal voltage 50/60 Hz single-phase V 240 V + 10% 50/60 Hz three-phase V 240 V + 10% 500 V + 10% (1) Not available for ATV312H ppp S6 drives EMC filters Integrated filters Altivar 312 drives, apart from ATV312H ppp M3 and ATV312H ppp S6, have integrated radio interference input filters to comply with the EMC standard for variable speed electrical power drive "products" IEC 61800-3, categories C2 or C3, and to comply with the European EMC (electromagnetic compatibility) directive. Additional EMC input filters Additional EMC input filters (1) enable drives to meet more stringent requirements: they are designed to reduce conducted emissions on the line supply below the limits of standard IEC 61800-3 category C1 or C2 (see page 49). These additional EMC filters can be mounted beside or under the drive. They act as a support for the drives and are attached to them via tapped holes. Use according to the type of line supply Additional EMC filters can only be used on TN (neutral connection) and TT (neutral to ground) type systems. Standard IEC 61800-3, appendix D2.1, states that on IT systems (isolated or impedance grounded neutral), filters can cause permanent insulation monitors to operate in a random manner. The effectiveness of additional filters on this type of system depends on the type of impedance between neutral and ground, and therefore cannot be predicted. If a machine has to be installed on an IT system, one solution is to insert an isolation transformer and connect the machine locally on a TN or TT system.

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