Yaskawa V74X Drives - Manual (Page 11)

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Introduction
This document pertains to the V7 ac drive. This document is equally applicable to drives identified as GPD315, GPD315/V7,
GPD315/V74X, and V74X. Additionally, in this document, the word “drive”, “ac drive”, and “inverter” may be used interchange-
ably. The V7 (NEMA type1) and V74X (NEMA type 4X/12), hereafter referred to as the "Drive," are general purpose sine-
coded pulse width modulated AC motor drives which generate an adjustable voltage/frequency three phase output for com-
plete speed control of most conventional squirrel cage induction motors. Automatic stall prevention and voltage boost prevent
nuisance tripping during load or line side transient conditions. The Drive will not induce any voltage line notching distortion
back to the utility line, and it maintains a displacement power factor of not less than 0.98 throughout its speed range.
When properly installed, operated and maintained, the Drive will provide a lifetime of service. It is mandatory that the person
who operates, inspects, or maintains this equipment thoroughly read and understand this manual before proceeding.
This installation guide details installation procedures and parameter setting ranges. For programming, refer to the Technical
Manual TM.V7.01 on the CD-ROM included with the Drive.
Receiving
Check nameplate - Be certain your input voltage source, motor and Drive nameplates are all marked either 230V or 460V.
Other voltages can be used, but require additional programming; see TM.V7.01.
Preliminary
Inspection Section 2
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