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1. Introduction
This manual is designed to ensure the safe and correct operation of the TOSNIC-7000S
Uninterruptible Power System (hereafter referred to as "UPS unit"). Please read the "Safety
Precautions" and "Operation" sections of this manual carefully before use and make sure you
have a thorough understanding of the information in these two sections. Keep the manual
handy in a place near the unit so you can refer to it instantly when needed.
Note that this manual was written based on the standard circuits shown in figures 6.2 (page
13). The delivered UPS system may, if desired by the customer, differ from the standard
configuration. Similarly, the displayed markings may differ from those on the standard
system. If this is the case, follow the operating procedures and indications provided in the
development circuit diagrams created individually for the UPS system actually delivered.
Also, while this manual uses the term UPS, the equipment may be marked "CVCF" according
to customer specifications. If this is the case, remember that the term UPS in the manual is
equivalent to CVCF.
2. Safety Precautions
This manual and the labels on the UPS main unit contain important information designed to
ensure that the UPS unit is used correctly and safely and prevent property loss and injury to
operators and maintenance personnel. Operators and maintenance personnel should follow
all precautions noted in the manual and should have a thorough understanding of the
meaning of the safety signs and safety symbols shown below.
Safety signs
Safety sign Meaning
WARNING
Indicates that failure to observe proper handling
procedures may result in death or serious injury
CAUTION
Indicates that failure to observe proper handling
procedures may result in injury* or property damage
* Here "injury" refers to burns, electrical shock or other injuries that do not
require hospitalization or long-term medical care.
Safety symbols
Safety symbol Meaning
PROHIBITED
The exact nature of what is prohibited is indicated in
pictorial or text form in or near the symbol
MANDATORY
The exact nature of what must be done is indicated in
pictorial or text form near the symbol.