Moeller Frequency inverters DF Vector frequency inverters DV

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For Moeller Electric Sales and Support call KMparts.com (866) 595-9616 15/30 Description Motor chokes DEX-LN..., DEX-LM3... Moeller HPL0211-2007/2008 http://catalog.moeller.net Frequency inverters Vector frequency inverters Part no. overview DEX-LN1... Mains chokes, single-phase DEX-LN3... Mains chokes, three-phase Application Mains chokes – also called commutating chokes – are connected in series on the mains input side of electronic equipment e.g. frequency inverters. Function Mains chokes limit the inrush current and dampen current harmonics and any additional current peaks. By dampening the harmonic currents, the r.m.s value of the input current can be reduced by up to 30 %. In addition, they allow the often mandatory short-circuit voltage (k value) of about 4 % to the mains. Mains chokes extend components’ lifespan (rectifier diodes, DC link capacitors) on equipment with input-side DC link (frequency inverters, UPS). Features The mains chokes are vacuum-impregnated for low-noise operation. They offer lowfatigue, magnetically and metallically neutral air-gap bypasses. Because of their flux distribution, the clearance to metal parts and neighbouring components must be at least 50 mm. Part no. overview DEX-LM3... Motor chokes, three-phase Application Motor chokes are used on the output of the frequency inverters in series with the motor. Function Motor chokes reduce the slew rate of the output voltage (/ < 500 V/ms) as well as motor noise and heating. The use of motor chokes enables the permissible motor cable lengths to be extended up to 200 m. With parallel operation of several motors from the output of a frequency inverter the use of motor chokes is recommended. They reduce the higher capacitive reactive currents. Features The motor chokes are vacuum-impregnated for low-noise operation. They offer lowfatigue, magnetically and metallically neutral air-gap bypasses. Because of their flux distribution, the clearance to metal parts and neighbouring components must be at least 50 mm. Documentation Installation instructions are supplied with each choke. The documentation is also available on the Internet: www.moeller.net/support
For Moeller Electric Sales and Support call KMparts.com (866) 595-9616 http://catalog.moeller.net Moeller HPL0211-2007/2008 Description Brake units, brake resistances DE4-BU4-1, DE4-BR1... 15/31 Frequency inverters Vector frequency inverters Part no. overview Part no. overview DE4-BU... braking unit Braking unit for controlling external braking resistors Application Braking units with assigned braking resistors are used for rapid braking of frequency-controlled three-phase drives. With its integrated synchronization, the DE4-BU4-1 allows several braking units to be operated in parallel, for example for large loads (lifting gear). Features • Braking transistor with automatic control (adjustable response value) • Braking resistors (DE4-BR1...) are not supplied with the device. The lowest permissible resistance is: 18 Ω • Synchronization for parallel operation of several DE4-BU... at high braking power. • Continuous braking power up to 18 kW • Maximum braking power 30 kW, with 15 s make time and 150 s pause time Function With short braking times, the frequency controlled motor operates in regenerative (oversynchronous) mode. In this mode, it feeds power into the frequency inverter’s DC link, which results in an increased DC bus voltage. If the voltage exceeds the permitted limit value, the frequency inverter control logic disables the frequency inverter’s power inverter and the motor coasts to a stop. If one or more braking units are connected in parallel to the internal DC link, the recovered energy can be diverted through the assigned braking resistors, where it is dissipated as heat. Documentation Installation instructions are supplied with each braking unit. The documentation is also available on the Internet: www.moeller.net/support DE4-BR1… Braking resistors Application An external braking resistor is required when braking large moments of inertia or when operating in extended regenerative mode. It converts the mechanical braking energy to heat. Function The integral braking transistor of the frequency inverter automatically diverts energy to the connected braking resistor when the threshold value of the DC bus voltage is exceeded. This prevents overvoltages in the DC link, which would otherwise cause an “overvoltage” fault message and activate the pulse inhibitor of the frequency inverter. The drive coasts to a stop. PE i Features T1 T2 2 1 R B The resistors are built into a perforated sheet-metal enclosure and are fitted with an overtemperature protection switch (230 V, 1A, AC-1). The enclosure is made from galvanized perforated sheet metal, The enclosures are open at the bottom and fullfil protection IP20 only when mounted. By combining several resistances in series and/or parallel higher braking capacities can be obtained. The braking resistors can be directly connected to the brake chopper of the frequency inverter DV51, DF6-340-11K, DF6-340-15K, DV6-340-075…11K and the braking unit DE4-BU4-1. Documentation Installation instructions are supplied with each braking unit. The documentation is also available on the Internet: www.moeller.net/support
Page 1 and 2: Moeller HPL0211-2007/2008 Contents
Page 3 and 4: Frequency Inverters - Overview 15/3
Page 5 and 6: For Moeller Electric Sales and Supp
Page 7 and 8: Engineering Frequency inverters 15/
Page 13 and 14: Engineering Assigned switching and
Page 19 and 20: Engineering Assigned switching and
Page 21 and 22: 4 C READ COPY For Moeller Electric
Page 23 and 24: Ordering Vector frequency inverter
Page 29: Description Interface cards 15/29 h
Page 33 and 34: MNT PRG ENTER FWD REV For Moeller E
Page 35 and 36: Ordering Radio interference suppres
Page 37 and 38: http://catalog.moeller.net Three-ph
Page 49 and 50: Technical Data Mains chokes, motor
Page 55: Dimensions Mains choke, motor choke

Moeller Frequency inverters DF Vector frequency inverters DV

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