OMRON Sysdrive 3G3HV - Detector Cooling Section
OMRON Sysdrive 3G3HV - Detector Cooling Section
OMRON Sysdrive 3G3HV - Detector Cooling Section
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Using the Inverter for Special Motors<br />
Pole-changing Motor<br />
The rated input current of pole-changing motors differs from that of standard<br />
motors. Select, therefore, an appropriate Inverter according to the<br />
maximum input current of the motor to be used.<br />
Before changing the number of poles, always make sure that the motor<br />
has stopped. Otherwise, the overvoltage protective or overcurrent protective<br />
mechanism will be actuated, resulting in an error.<br />
Submersible Motor<br />
The rated input current of submersible motors is higher than that of standard<br />
motors. Therefore, always select an Inverter by checking its rated<br />
output current.<br />
When the distance between the motor and Inverter is long, use a cable<br />
thick enough to connect the motor and Inverter to prevent motor torque<br />
reduction.<br />
Explosion-proof Motor<br />
When an explosion-proof motor or increased safety-type motor is to be<br />
used, it must be subject to an explosion-proof test in conjunction with the<br />
Inverter. This is also applicable when an existing explosion-proof motor<br />
is to be operated with the Inverter.<br />
Since the Inverter itself is, however, not explosion-proof, always install it<br />
in a safe place.<br />
Gearmotor<br />
The speed range for continuous operation differs according to the lubrication<br />
method and motor manufacturer. In particular, continuous operation<br />
of an oil-lubricated motor in the low speed range may result in<br />
burning. If the motor is to be operated at a speed higher than 60 Hz, consult<br />
with the manufacturer.<br />
Synchronous Motor<br />
A synchronous motor is not suitable for Inverter control.<br />
If a group of synchronous motors is individually turned ON and OFF,<br />
synchronism may be lost.<br />
Single-phase Motor<br />
Do not use an invertor for a single-phase motor. The motor should be<br />
replaced with a 3-phase motor.<br />
Power Transmission Mechanism (Speed Reducers, Belts, and<br />
Chains)<br />
If an oil-lubricated gearbox or speed reducer is used in the power transmission<br />
mechanism, oil lubrication will be affected when the motor operates<br />
only in the low speed range. The power transmission mechanism<br />
will make noise and experience problems with service life and durability<br />
if the motor is operated at a speed higher than 60 Hz.
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