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3.17 Motor Application Precautions
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SIEPYEUOQ2A01G AC Drive Q2A Technical Manual
The encoder used with pressure-resistant explosion-proof motors is intrinsically safe. When wiring between the
drive and encoder, always connect through a specialized pulse coupler.
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Geared Motors
The continuous speed range is different for different lubricating methods and manufacturers. For oil lubrication,
continuous operation in the low-speed range can cause burnout. Contact the manufacturer for more information
about applications where operating at more than the rated frequency is necessary.
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Single-Phase Motors
Variable speed drives are not designed to operate with single-phase motors. The drive is for use with three-phase
motors only. If you use capacitors to start the motor, it can cause a high frequency current to flow to the capacitors
and can damage the capacitors. A split-phase start or a repulsion start can burn out the starter coils because the
internal centrifugal switch is not activated.
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Motors with Brakes
If you use a drive to operate a motor that has a brake connected to the output side, low voltage levels can cause
the brake to possibly not release at start. Use a motor with a brake that has a dedicated source of power for the
brake. Connect the brake power supply to the power supply side of the drive. Motors with built-in brakes make
noise when operating at low speeds.
◆
Notes on the Power Transmission Mechanism
For power transmission machinery that uses oil to lubricate gearboxes, transmissions, or reduction gears, make
sure that you use precaution if you operate the machinery continuously at low speed. Oil does not lubricate the
system as well at low speeds. If you operate at frequencies higher than the rated frequency, it can cause problems
with the power transmission mechanism. These problems include audible noise, decreased service life, and
decreased durability.
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Страница 18: ...i 2 Legal Information 18 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...
Страница 28: ...1 2 Features and Advantages of Control Methods 28 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...
Страница 64: ...2 9 Installation Methods 64 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...
Страница 166: ...4 9 Test Run Checklist 166 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...
Страница 172: ...5 2 European Standards 172 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...
Страница 173: ...Standards Compliance 5 5 2 European Standards SIEPYEUOQ2A01G AC Drive Q2A Technical Manual 173...
Страница 174: ...5 2 European Standards 174 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...
Страница 175: ...Standards Compliance 5 5 2 European Standards SIEPYEUOQ2A01G AC Drive Q2A Technical Manual 175...
Страница 176: ...5 2 European Standards 176 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...
Страница 258: ...6 2 Modbus Communications 258 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...
Страница 356: ...8 7 Storage Guidelines 356 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...
Страница 357: ...SIEPYEUOQ2A01G AC Drive Q2A Technical Manual 357 9 Disposal 9 1 Safety Precautions 358 9 2 Disposal Instructions 359...
Страница 360: ...9 2 Disposal Instructions 360 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...
Страница 526: ...11 20 Parameters Changed by PM Motor Code Selection 526 SIEPYEUOQ2A01G AC Drive Q2A Technical Manual...