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General| Brand | Emerson |
|---|---|
| Model | SP1406 |
| Category | Servo Drives |
| Language | English |
Warning about severe electrical shock and potential lethality from drive voltages.
Drive is a component for professional incorporation; incorrect installation can create a hazard.
Use as a regenerative front end for four quadrant operation, allowing bi-directional power flow.
Main advantages include energy saving, sinusoidal input current, and near unity power factor.
Explains how the IGBT stage acts as a sinusoidal rectifier converting AC to controlled DC voltage.
Illustrates the relationship between supply voltage and Regen drive voltage using a phasor diagram.
Regen drive synchronisation to AC supply does not require additional hardware; uses space vector modulator.
Details possible configurations for Unidrive SP Regen systems.
Details system types: Single Regen, single motoring; Single Regen, multiple motoring.
Describes a system with multiple Regen drives and multiple motoring drives.
Provides current and power ratings for Unidrive SP drives across different voltage ranges.
Illustrates features of drive sizes 1 to 6, including connections and modules.
Describes the SPMC as a controlled rectifier and SPMU as uncontrolled rectifier.
Details available output sharing chokes for motoring drives in regen systems.
Details essential components for regen systems, including inductors, capacitors, and varistors.
Details external EMC filters sourced from Schaffner and Epcos.
External resistors used with multiple regen/motoring or single regen/multiple motoring drives.
Sizing of a regen system requires considering line voltage, motor ratings, power, and overload.
Calculations for single Regen/motoring or single Regen/multiple motoring drive systems.
Regen drive must supply net peak power from all motoring drives plus losses.
Covers power connections for Unidrive SP regen systems, including AC supply and DC bus.
Shows power and control connections for a single regen and single/multiple motoring drive system.
Shows power and control connections for multiple motoring regen solution using SPMC.
Shows power and control connections for multiple motoring regen solution using external resistor.
Shows power connections for multiple Regen and multiple motoring drives using Unidrive SPMC.
Details Regen drive current limits and power rating considerations relative to motoring drive.
Details three significant cable lengths that must be accounted for in regen system design.
Provides tables for maximum permissible cable lengths for Regen systems at different switching frequencies.
Addresses additional components needed when maximum cable length is exceeded.
Installation must be safe under normal and fault conditions; consult qualified personnel.
Installation must be safe under normal and fault conditions; electrical installation instructions are in Chapter 6.
Lists dimensions and specifications for 200V and 400V Regen inductor types.
Voltages in AC supply, DC connections, and output can cause severe shock or be lethal.
Disconnect AC supply with an approved device before removing covers or servicing.
Drive capacitors remain charged after AC supply disconnection; wait ten minutes before work.
Details AC and DC power connections for Unidrive SP Regen drives of various sizes.
Shows power connections for Unidrive SP size 1 Regen drive.
Covers EMC requirements, general principles, and compliance standards.
Details external EMC filters sourced from Schaffner and Epcos.
Sequence: line sync, DC bus voltage rise, then motoring drive enable; prevents damage.
Provides information on drive status, alarms, and trip codes for diagnostics.
Details fuse protection requirements for various regen system configurations.
Lists dimensions and specifications for 200V and 400V Regen inductor types.
Details AC input terminals of Regen drive and requirements for switching frequency filter inductors.
Provides cross-reference for Unidrive SP / EMC filters from Schaffner and Epcos.
Calculates MCB current rating based on filter inductance, capacitance, charging current, and supply voltage.
Calculates charging resistor for multiple drive systems due to inrush current.
Provides protection against short circuits and fire risk for the soft start resistor.
Describes how to read trip indications from the display or LED status indicator.
Explains how the drive logs the last 10 trips and their corresponding times.
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