Schneider Electric MNA01M001EN manual DC bus voltage measurement, Standards and terminology

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LXM32

Safety Information

DC bus voltage measurement

The DC bus voltage can exceed 800 Vdc. The DC bus LED is not an indicator of the absence of DC bus voltage.

DANGER

ELECTRIC SHOCK, EXPLOSION OR ARC FLASH

•Disconnect the voltage supply to all connections.

•Wait 15 minutes to allow the DC bus capacitors to discharge.

•Use a properly rated voltage-sensing device for measuring (>800 Vdc).

•Measure the DC bus voltage between the DC bus terminals (PA/+ and PC/-) to verify that the voltage is less than 42 Vdc.

•Contact your local Schneider Electric representative if the DC bus capacitors do not discharge to less than 42 Vdc within a period of 15 minutes.

•Do not operate the product if the DC bus capacitors do not dis- charge properly.

•Do not attempt to repair the product if the DC bus capacitors do not discharge properly.

Failure to follow these instructions will result in death or seri- ous injury.

Standards and terminology

Technical terms, terminology and the corresponding descriptions in this manual are intended to use the terms or definitions of the perti- nent standards.

In the area of drive systems, this includes, but is not limited to, terms such as "safety function", "safe state", "fault", "fault reset", "failure", "error", "error message", "warning", etc.

Among others, these standards include:

•IEC 61800 series: "Adjustable speed electrical power drive sys- tems"

•IEC 61158 series: "Digital data communications for measurement and control – Fieldbus for use in industrial control systems"

•IEC 61784 series: "Industrial communication networks – Profiles"

•IEC 61508 series: "Functional safety of electrical/electronic/ programmable electronic safety-related systems"

Also see the glossary at the end of this manual.

MNA01M001EN, V1.01, 08.2014

Common DC bus

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Contents LXM32 LXM32 Table of contents Accessories and spare parts Hazard categories Safety InformationIntended use Qualification of personnelBasic information Loss of Control Standards and terminology DC bus voltage measurementLXM32 About the book LXM32 Introduction Permissible device types for common DC bus Firmware version Technical DataDC bus data LXM32 ∙ U45M2 U90M2 D18M2 D30M2 Braking resistorParameter DCbuscompat VW3A760 1Rxx 2Rxx 3Rxx 4Rxx 5Rxx 6Rxx 7Rxx External braking resistors accessoriesCables for the DC bus Engineering Energy balance basics Energy balanceRating DC bus connection Electromagnetic compatibility EMCFuses DC bus connection of single-phase drivesSee .2 DC fuses for fuses for the DC bus Single mains fuse for three-phase drives DC bus connection of three-phase drivesMultiple mains fuses for three-phase drives Supply via the DC bus Supply via the DC bus by a drive LXM32 Rating the braking resistor Braking resistorsPmax Rating information Selecting an external braking resistor Mains reactor L2 L1 PC/- PA/+ Mains filter Mains reactor and external mains filter LXM32 Installation Assembling cables Specifications for drives with mains supplyPart Length in mm inches LXM32∙ D85, C10 Drives with connectors Wiring the DC busNector Properties of the connection termi- nals CN9 Drives with terminalsDC bus connection, example with connector Connecting the DC busVerifying installation LXM32 Commissioning DC bus connection LXM32 to LXM32 Commissioning procedureMONMainsVolt LXM32 Setting the braking resistor parameters Accessories and spare parts DC bus accessoriesDC fuses External braking resistors Units and conversion tables GlossaryRotation TemperatureTorque Moment of inertiaTerms and Abbreviations LXM32 Table of figures LXM32 EMC IndexLXM32

MNA01M001EN specifications

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