Toshiba E3 Manuel d'utilisateur télécharger pdf

E3 Adjustable Speed Drive

Engineering Specification

PART 1 - GENERAL

1.0 Scope

This specification shall cover Toshiba E3 AC Variable Frequency Drives, 6 pulse for

230V and 460V.

1.1 References

A. National Electric Manufactures Association (NEMA)

B. Underwriters Laboratories, Inc. (UL) and CSA

C. National Electric Code (NEC)

D. IEEE 519. Compliance of IEEE 519 can be determined after Toshiba performs a

harmonics analysis. The analysis will be done after we receive a completed

harmonics questionnaire.

E. ISO 9001

1.2 Submittal

Submittals shall include Toshiba standard operation manual. Schematics can be obtained

from factory upon request.

PART 2 – E3 VARIABLE FREQUENCY DRIVE

2.0 General

A. This specification covers AC adjustable frequency drives for HVAC applications.

B. The manufacturer shall not have less than fifteen years of experience in the

manufacture of VFD’s.

C. The manufacturer shall manufacture both AC drives and motors at the same

facility.

D. The drive shall be manufactured in the United States.

2.1 Design Criteria

A. The drive should be a PWM (Pulse Width Modulated) transistorized inverter

using IGBT’s (Insulated Gate Bipolar Transistors) and must be fully digital.

1 2 3 4 5 6 7

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Page 1 - Engineering Specification

1 E3 Adjustable Speed Drive Engineering Specification PART 1 - GENERAL 1.0 Scope This specification shall cover Toshiba E3 AC Variable Frequenc

Page 2

2 B. The drive shall utilize Insulated Gate Bipolar Transistor (IGBT’s) in its power section. C. The E3 VFD shall have 3 basic design criteria 1)

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3 M. The drive shall have an adjustable retry function after a fault. Both number of attempts (at least 10) and time between (1-10 sec). N. The dr

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4 I. The drive shall have adjustable UL listed electronic overload protection (10% - 100%). J. The drive shall have a custom programmable volt/hert

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5 3) Over current during normal run trip 4) Over current on the DC Bus during acceleration trip 5) Over current on the DC Bus during deceleration

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6 9) Motor Overload Ratio 10) Drive Overload Ratio 11) DBR Overload Ratio 12) Input Power 13) Output Power 14) RR Input Value 15) Peak Load Current

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7 2.9 Drive Environmental Conditions A. Environment - Indoors NEMA 1 metal enclosure, plastic shall not be acceptable. B. Ambient temperature - 1

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Toshiba E3 Manuel d'utilisateur

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