Oriental motor BLH Series - Precautions for Use

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Precautions for use
3 Precautions for use
This chapter covers limitations and requirements the user should consider when using the product.
Use a driver and motor only in the specied combination.
Refer to "4.4 Products possible to combine" on p.7 for combinations of the driver and motor.
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Notes for continuous regeneration operation
When regeneration operation is continuously performed, check the following conditions are satised before use.
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Set the value of the "Deceleration mode selection" parameter to "Deceleration stop 3."
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Use a power supply that can suciently allow the regenerative power.
Note
Do not perform gravitational operation (vertical drive) because a load may fall.
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Do not conduct the insulation resistance measurement or the dielectric strength test with the motor and
driver connected.
Conducting the insulation resistance measurement or the dielectric strength test with the motor and driver connected
may result in damage to the product.
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Note on power ON/OFF using a mechanical contact
When turning on or o the power supply using a mechanical contact (breaker, electromagnetic switch, relay, etc.), do so
only the positive side (+) of the power supply using the mechanical contact.
Turning on or o the positive side (+) and the negative side (−) of the power supply simultaneously using a mechanical
contact may cause damage to the control circuit or peripheral equipment.
Refer to p.11 for details.
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Note on connecting a power supply whose positive terminal is grounded
The driver’s USB connector is not electrically insulated. When grounding the positive terminal of the power supply, do
not connect any equipment (PC, etc.) whose negative terminal is grounded. Doing so may cause the driver and these
equipment to short, damaging both.
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Noise elimination measures
Refer to p.17 for the noise elimination measures.
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Notes when saving the data to the non-volatile memory
Do not turn o the power supply while writing the data to the non-volatile memory, and also do not turn o for 5
seconds after the completion of writing the data. Doing so may abort writing the data and cause an EEPROM error alarm
to generate.
The non-volatile memory can be rewritten approximately 100,000 times.
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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 disulde 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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Sliding noise of electromagnetic brake
Sliding noise of the brake disk for the electromagnetic brake motor may be generated during operation.
It is no functional problem.