Hitachi SJ-DG User Manual
NB617X
HITACHI INVERTER
SJ300/L300P SERIES
SJ-DG (DIGITAL INPUT OPTION)
INSTRUCTION MANUAL
Thank you for purchase of “HITACHI INVERTER”. This manual
explains about treatment of “SJ-DG (digital input option)”. By reading this
manual and an instruction manual of inverter use practically for
installation, maintenance, and inspection. After reading this manual, keep
it handy for future reference
Make sure to reach this manual to the end user.
Table of Contents
Chapter1 Introduction 1
Chapter2 Installation method of printed board 2
Chapter3 Wiring Connecting 4
Chapter4 Setting 6
Chapter5 Function 7
After reading this manual, keep it handy for future reference
Request
Thank you for purchase of “HITACHI INVERTER”. This manual explains about handling of “SJ-DG (digital
input option)”.
This instruction manual explains about treatment and maintenance of “SJ-DG”. Before using the product,
carefully read this manual with the instruction manual of inverter, and keeps it handy for quick reference of
operator and maintenance inspector. Before installing, operating, maintenance and inspection read this manual
carefully and follow the instructions exactly.
Always keep various kinds of specification mentioned in this manual and use exactly. And make sure to
prevent trouble by correct inspection and maintenance. Make sure to reach this manual to the end user.
About treatment of this manual
Please consent that mentioned items of this manual may be change without permission.
Keep this manual carefully not to lose because it cannot be reissued.
All right reserved.
Contents in this manual is written to make assurance doubly sure but, but please contact if you have some
doubts about spelling mistakes, omitted word etc.
Please agree that there is no responsibility for effects resulted, in spite of contents above mentioned.
Revision History Table
No.
1. Initial release 1999/12 NB617X
Except this table, revised only spelling mistakes omitted words, and error writings without notice.
Revision contents The date of issue Manual No
SAFETY PRECAUTIONS
SAFETY PRECAUTIONS
Carefully read this manual and all of the warning labels attached to the inverter before installing, operating,
maintaining, or inspecting it. Safety precautions are classified into “Warning” and “Caution” in this manual.
WARNING
!
CAUTION
!
The situation described in WARNING may, if not avoided, lead to serious results. Important safety measures are
described in CAUTION (as well as WARNING) so be sure observe them.
Notes are described in this manual in “Note”, Precaution. Carefully read the contents and follow them exactly.
In all the illustrations in this manual, covers and safety devices are occasionally removed to describe the
details. When the product is operated, make sure that the covers and safety devices are placed as they were
specified originally and operate it according to the instruction manual.
: Indicates a potentially hazardous situation which, if not avoided, can result in serious injury or
death.
: Indicates a potentially hazardous situation which, if not avoided, can result in minor to moderate
injury, or serous damage to the product.
CAUTION
!
SAFETY PRECAUTIONS
!
WARNING
Wiring:
• Wiring work shall be carried out by electrical experts
Otherwise, there is a danger of electric shock, fire and/or damage of product.
• Implement wiring after checking that the power supply is off.
Otherwise, there is a danger of electric shock and/or fire.
Operating:
• Be sure not to touch the surface or the terminal of option board while energizing.
Otherwise, there is a danger of electric shock and/or fire.
• Be sure not to remove the digital input option printed board while operating.
Otherwise, there is a danger of electric shock and/or fire.
Maintenance, Inspection and Part Replacement:
• Wait at least 10 minutes after turning off the input power supply before performing maintenance and
inspection.
(Confirm the charge lamp on the inverter is off, checks direct current voltage between P-N terminals and
confirm it is less than 45V.)
Otherwise, there is a danger of electric shock.
• Make sure that only qualified persons will perform maintenance, inspection, and part replacement
(Before starting the work, remove metallic objects from your person (wristwatch, bracelet, etc.).
Be sure to use tools protected with insulation)
Otherwise, there is a danger of electric shock, and/or injury.
Note:
• Never modify the unit.
Otherwise, there is a danger of electric shock and/or injury.
CAUTION
!
Installation:
• Be sure not to let the foreign matter enter such as wire clippings, spatter from welding, metal shaving,
dust, etc.
Otherwise, there is a danger of fire.
• Be sure to fix inverter to option printed board with an attached fixed screw.
Otherwise, there is a danger of connecting error.
• Be sure to fasten the screws connecting signal wire in side of option printed board. Check for any
loosening of screw.
Otherwise, there is a danger of connecting error.
Wiring:
• Be sure to fasten the screws not to loose.
Otherwise, there is a danger of connecting error.
Operation:
• Check rotary direction, abnormal motor noise and vibrations during operating.
Otherwise, there is a danger of injury to personnel and/or machine breakage.
SAFETY PRECAUTIONS
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