Yaskawa Varispeed-656 DC5 - Manual (Page 3)

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PREFACE
YASKAWA’s VARISPEED-656DC5 is a PWM transistor converter. This instruction man-
ual describes installation, maintenance and inspection, troubleshooting, and specifications of
the VS-656DC5. Read this instruction manual thoroughly before operation.
YASKAWA ELECTRIC CORPORATION
SAFETY INFORMATION
Read this instruction manual thoroughly before installation, operation, maintenance or
inspection of the VS-656DC5. In this manual, NOTES FOR SAFE OPERATION are classi-
fied as “WARNING” or “CAUTION.”
Indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury to personnel.
Indicates a potentially hazardous situation which, if not avoided, may result in minor
or moderate injury to personnel and damage to equipment.
It may also be used to alert against unsafe practices.
Even items described in may result in a vital accident in some situations.
In either case, follow these important notes.
These are steps to be taken to insure proper operation.
General Precautions
• Some drawings in this manual are shown with the protective cover or shields removed, in order to describe
detail with more clarity. Make sure all covers and shields are replaced before operating this product.
• This manual may be modified when necessary because of improvement of the product, modification, or
changes in specifications.
Such modifications are denoted by a revised manual No.
• To order a copy of this manual, if your copy has been damaged or lost, contact your YASKAWA represen-
tative.
• YASKAWA is not responsible for any modification of the product made by the user, since that will void
your guarantee.
WARNING
CAUTION
CAUTION
NOTE