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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of Toshiba E3, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of Toshiba E3 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of Toshiba E3. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of Toshiba E3 should contain:
- informations concerning technical data of Toshiba E3
- name of the manufacturer and a year of construction of the Toshiba E3 item
- rules of operation, control and maintenance of the Toshiba E3 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Toshiba E3 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Toshiba E3, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Toshiba service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Toshiba E3.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the Toshiba E3 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
1 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. Complianc[...]
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Page 2
2 B. The drive shall utilize Insulated Gate Bipolar Tr ansistor (IGBT’s) in its p ower section. C. The E3 VFD shall have 3 basic design criteria 1) Rectifier Section that shall include diode bridge rectifier to convert AC to DC. 2) Filtering Section that sh all include c apacitors to eliminate “ripple” affect on the DC bus to produce smooth D[...]
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Page 3
3 M. The drive shall have an adjustable retry function after a fault. Both num ber of attempts (at least 10) and time between (1-10 sec). N. The drive shall have an adjustab le output short circuit detectio n selection for standard motor and high-speed motors (very low inductance). O. The drive shall have two programmable: volt per hertz patterns, [...]
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Page 4
4 I. The drive shall have adjustable UL lis ted electronic overloa d protection (10% - 100%). J. The drive shall have a custom programmable volt/hertz pattern. 2.5 Input / Output Capabilities A. The drive shall accept the followi ng frequency comm ands signals: 1) 3k Ω potentiometer (1k Ω to 10K Ω potentiometer connection also possible) 2) 0 [...]
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Page 5
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 trip 6) Over current on the DC Bus during normal run trip 7) Load end over current trip detected at start-up (output terminals, motor wiring, etc.) 8) U-phase short circuit trip detec ted at start-up 9) V[...]
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Page 6
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 16) Peak Input Voltage 17) Kilowatt Hours 18) Megawatt Hours B. The drive shall have 320 programmable parameters, which can be changed, while the drive is in run mode. C. The drive’s 353 parameters sh[...]
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Page 7
7 2.9 Drive Environmental Conditions A. Environment - Indoors NEMA 1 metal enclosure, plastic shall not be acceptable. B. Ambient temperature - 14 ° F to 104 ° F (up to 122 ° F with cover removed). C. Altitude - 3,300 feet maximum without derating. D. Relative humidity - 95% maximu m (no condensation allowed). E. Vibration - 0.5G maximum. Part 3[...]