4
Precautions for use
3 Precautions for use
This chapter covers limitations and requirements the user should consider when using the product.
Be sure to match the output power of the driver with that of the motor when using.
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Do not perform gravitational operation (vertical drive).
If the
BLH
Series is used in operation (i.e. gravitational operation) in which the motor output shaft is turned from
the load side, the motor speed cannot be controlled. Also, do not use the motor in vertical drive such as elevating
equipment because it has no holding force. Doing so may cause a load to drop when the motor stops.
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Grease measures
On rare occasions, grease may ooze out from the gearhead. If there is concern over possible environmental
contamination resulting from the leakage of grease, check for grease stains during regular inspections. Alternatively,
install an oil pan or other device to prevent damage resulting from contamination. Grease leakage may lead to problems
in the user’s equipment or products.
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Apply grease to the hollow output shaft of a hollow shaft at gearhead.
Apply grease (molybdenum disulde grease, etc.) on the surface of the load shaft and the inner walls of the hollow
output shaft to prevent seizure.
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Do not conduct the insulation resistance measurement or dielectric strength test with the motor and driver
connected.
Conducting the insulation resistance measurement or dielectric strength test with the motor and driver connected may
result in damage to the product.
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Noise elimination measures
Refer to p.12 for the noise elimination measures.
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