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Cover
HITACHI
SJ300 Series Inverter
Instruction Manual
• Three-phase Input 200V Class
Three-phase Input 400V Class
UL Version Models CE Version Models
Manual Number: NB613XH After reading this manual,
December 2003 keep it handy for future reference.
Hitachi Industrial Equipment Systems Co., Ltd.
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i SJ300 Inverter Safety Messages For the best results with the SJ300 Series inverter, carefully read this manual and all of the warning labels attached to the inverter before installing and operating it, and follow the instruc- tions exactly. Keep this manual handy for quick reference. Definitions and A safety instruction (message) includes a hazard alert symbol and a signal word, WARNING or CAUTION. Each signal word has the following meaning: Symbols This symbol indicates HIGH VOLTAGE. It cal
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ii General Precautions - Read These First! WARNING: This equipment should be installed, adjusted, and serviced by qualified electrical maintenance personnel familiar with the construction and operation of the equipment and the hazards involved. Failure to observe this precaution could result in bodily injury. WARNING: The user is responsible for ensuring that all driven machinery, drive train mecha- nism not supplied by Hitachi Industrial Equipment Systems Co., Ltd., and process line material
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iii SJ300 Inverter CAUTION: a) Motor must be connected to protective ground via low resistive path (< 0.1Ω ) b) Any motor used must be of a suitable rating. c) Motors may have hazardous moving parts. In this event suitable protection must be provided. CAUTION: Alarm connection may contain hazardous live voltage even when inverter is disconnected. When removing the front cover for maintenance or inspection, confirm that incoming power for alarm connection is completely disconnected. CAUTION: H
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iv Index to Warnings and Cautions in This Manual Installation—Cautions for Mounting Procedures CAUTION: Be sure to install the unit on flame-resistant material such as a ............... 2–6 steel plate. Otherwise, there is the danger of fire. CAUTION: Be sure not to place any flammable materials near the inverter. ............... 2–6 Otherwise, there is the danger of fire. CAUTION: Be sure not to let the foreign matter enter vent openings in the ............... 2–6 inverter housing, such as wire
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v SJ300 Inverter HIGH VOLTAGE: Be sure to ground the unit. Otherwise, there is a danger ............. 2–13 of electric shock and/or fire. HIGH VOLTAGE: Wiring work shall be carried out only by qualified ............. 2–13 personnel. Otherwise, there is a danger of electric shock and/or fire. HIGH VOLTAGE: Implement wiring after checking that the power supply ............. 2–13 is OFF. Otherwise, you may incur electric shock and/or fire. HIGH VOLTAGE: Do not connect wiring to an inverter or opera
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vi CAUTION: Fasten the screws with the specified fastening torque in the ............. 2–16 table below. Check for any loosening of screws. Otherwise, there is the danger of fire. CAUTION: Remarks for using ground fault interrupter breakers in the main ............. 2–19 power supply: Adjustable frequency inverters with CE-filters (RFI-filter) and shielded (screened) motor cables have a higher leakage current toward Earth GND. Especially at the moment of switching ON this can cause an inadve
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vii SJ300 Inverter Warnings for Operations and Monitoring WARNING: Be sure to turn ON the input power supply only after closing ............... 4–3 the front case. While the inverter is energized, be sure not to open the front case. Otherwise, there is the danger of electric shock. WARNING: Be sure not to operate electrical equipment with wet hands. ............... 4–3 Otherwise, there is the danger of electric shock. WARNING: While the inverter is energized, be sure not to touch the ..........
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viii Cautions for Operations and Monitoring CAUTION: The heat sink fins will have a high temperature. Be careful not ............... 4–2 to touch them. Otherwise, there is the danger of getting burned. CAUTION: The operation of the inverter can be easily changed from low ............... 4–2 speed to high speed. Be sure check the capability and limitations of the motor and machine before operating the inverter. Otherwise, it may cause injury to personnel. CAUTION: If you operate a motor at a fr
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ix SJ300 Inverter WARNING: The screws that retain the capacitor bank assembly are part of ............. 6–13 the electrical circuit of the high-voltage internal DC bus. Be sure that all power has been disconnected from the inverter, and that you have waited at least 5 minutes before accessing the terminals or screws. Be sure the charge lamp is extinguished. Otherwise, there is the danger of electrocution to personnel. CAUTION: Do not operate the inverter unless you have replaced the two ....
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x CAUTION: Do not insert leading power factor capacitors or surge absorbers between the output terminals of the inverter and motor. Ground fault Surge absorber interrupter Inverter GFI Power Input Motor R, S, T U, V, W L1, L2, L3 GND lug Leading power factor capacitor CAUTION: Be sure to connect the grounding terminal to earth ground. CAUTION: When inspecting the unit, be sure to wait five minutes after tuning OFF the power supply before opening the cover. CAUTION: SUPPRESSION FOR NOISE IN
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xi SJ300 Inverter CAUTION: MOTOR TERMINAL VOLTAGE SURGE SUPPRESSION FILTER (For 400 V CLASS Inverters) In a system using an inverter with the voltage control PWM system, a voltage surge caused by the cable constants such as the cable length (especially when the distance between the motor and inverter is 10 m or more) and cabling method may occur at the motor terminals. A dedicated filter of the 400 V class for suppressing this voltage surge is available. Be sure to install a filter in this
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xii ® UL Cautions, Warnings, and Instructions Wiring Warnings The Cautions, Warnings, and instructions in this section summarize the procedures necessary to ® ensure an inverter installation complies with Underwriters Laboratories guidelines. for Electrical Practices and Wire Sizes WARNING: “Use 60/75°C Cu wire only” or equivalent. WARNING: “Open Type Equipment.” For models SJ300–750H to SJ300–1500H. WARNING: “Suitable for use on a circuit capable of delivering not more than 10,000 rms symme
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xiii SJ300 Inverter Motor Torque Input Output 400V Wire Size Range (AWG) Voltage Inverter Model HP kW ft-lbs (N-m) 1 0.75 SJ300-007HFU/E 20 1.1 1.5 2 1.5 SJ300-015HFU/E 18 1.1 1.5 3 2.2 SJ300-022HFU/E 16 1.1 1.5 5 4.0 SJ300-040HFU/E 14 1.1 1.5 7.5 5.5 SJ300-055HFU/E 12 1.8 2.5 10 7.5 SJ300-075HFU/E 10 1.8 2.5 15 11 SJ300-110HFU/E 8 3.6 4.9 20 15 SJ300-150HFU/E 6 3.6 4.9 25 18.5 SJ300-185HFU/E 6 3.6 4.9 400V 30 22 SJ300-220HFU/E 4 3.6 4.9 40 30 SJ300-300HFU/E 3 3.6 4.9 50 37 SJ300-370HFU/E 4 ||
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xiv Circuit Breaker The inverter’s connections to input power must include UL Listed inverse time circuit breakers with 600V rating, or UL Listed fuses as shown in the table below. and Fuse Sizes Motor Motor Circuit Circuit Input 200V Fuse Input 400V Fuse Output Output Breaker Breaker Voltage Inverter Model Voltage Inverter Model (A) (A) (A) (A) HP kW HP kW 1/2 0.4 SJ300-004LFU 10 10 1 0.75 SJ300-007HFU/E 10 10 1 0.75 SJ300-007LFU 10 10 2 1.5 SJ300-015HFU/E 10 10 2 1.5 SJ300-015LFU 10 10 3
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xv SJ300 Inverter Table of Contents Safety Messages Hazardous High Voltage i General Precautions - Read These First! ii Index to Warnings and Cautions in This Manual iv General Warnings and Cautions ix UL® C
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xvi Chapter 5: Inverter System Accessories Introduction 5–2 Component Descriptions 5–3 Dynamic Braking 5–6 Chapter 6: Troubleshooting and Maintenance Troubleshooting
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xvii SJ300 Inverter Revisions Revision History Table Operation No. Revision Comments Date of Issue Manual No. Initial release of manual NB613X March 2001 NB613X 1 Add three higher-horsepower models: August 2001 NB613XA Model # convention update, page 1–5 Specs table, pages 1–6 to 1–10 Derating curves, pages 1–11 to 1–12 Dimension drawings, page 2–12 Update wire and fuse size table, pages 2–14, 2–15 Update terminal dimensions table, pages 2–16, 2–17 Update braking tables, p
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xviii Contact Information Hitachi America, Ltd. Hitachi Australia Ltd. Power and Industrial Division Level 3, 82 Waterloo Road 50 Prospect Avenue North Ryde, N.S.W. 2113 Tarrytown, NY 10591 Australia U.S.A. Phone: +61-2-9888-4100 Phone: +1-914-631-0600 Fax: +61-2-9888-4188 Fax: +1-914-631-3672 Hitachi Europe GmbH Hitachi Industrial Equipment Systems Co, Ltd. Am Seestern 18 International Sales Department D-40547 Düsseldorf WBG MARIVE WEST 16F Germany 6, Nakase 2-chome Phone: +49-211-5283-0 Mi
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Getting Started 1 In This Chapter.... page — Introduction ....................................................................................... 2 — SJ300 Inverter Specifications ........................................................... 6 — Introduction to Variable-Frequency Drives...................................... 13 — Frequently Asked Questions........................................................... 17
