Safety precautions
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2 Safety precautions
The precautions described below are intended to ensure the safe and correct use of the product, and to prevent
the customer and others from exposure to the risk of injury. Use the product only after carefully reading and fully
understanding these instructions.
Handling the product without observing the instructions that accompany a "WARNING"
symbol may result in serious injury or death.
Handling the product without observing the instructions that accompany a "CAUTION"
symbol may result in injury or property damage.
Note
The items under this heading contain important handling instructions that the user should
observe to ensure safe use of the product.
Explanation of graphic symbols
:
Indicates "prohibited" actions that must not be performed.
:
Indicates "compulsory" actions that must be performed.
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Do not use the product in explosive or corrosive environments, in the presence of ammable gases, locations
subjected to splashing water, or near combustibles. Doing so may result in re, electric shock or injury.
•
Do not transport, install, connect, or inspect the product while the power is supplied. Always turn o the power
before carrying out these operations. Electric shock or damage to equipment may result.
•
Do not use a motor without electromagnetic brake in a vertical application. If the driver protective function is
activated, the motor will stop and the moving part of the equipment may fall, thereby causing injury or damage
to equipment.
•
Do not use the brake mechanism of the electromagnetic brake motor as a safety brake. It is intended to hold the
moving part and motor positions. Using it as a safety brake may result in injury or damage to equipment.
•
Do not forcibly bend, pull or pinch the cable. Doing so may result in re, electric shock, or damage to equipment.
•
Do not machine or modify the motor cable or connection cable. Doing so may result in re, electric shock, or
damage to equipment.
•
Do not touch the motor or driver when conducting the insulation resistance measurement or dielectric strength
test. Accidental contact may result in electric shock.
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Do not disassemble or modify the motor, gearhead and driver. Doing so may result in injury or damage to
equipment. Refer all such internal inspections and repairs to the branch or sales oce from which you purchased
the product.
•
Only qualied and educated personnel should be allowed to perform installation, connection, operation and
inspection/troubleshooting of the product. Handling by unqualied and uneducated personnel may result in re,
electric shock, injury, or damage to equipment.
•
When the protective function of the driver is activated, remove the cause before clearing the protective function.
Continuing the operation without removing the cause of the problem may result in malfunction of the motor and
driver, leading to injury or damage to equipment.
•
Install the motor, gearhead and driver in an enclosure. Failure to do so may result in electric shock or injury.
•
Always keep the power supply voltage of the driver within the specied range. Failure to do so may result in re
or electric shock.
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For the power supply, use a DC power supply with reinforced insulation on its primary and secondary sides.
Failure to do so may result in electric shock.
•
Securely connect the wirings in accordance with the connection examples. Failure to do so may result in re or
electric shock.
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Be sure to observe the specied cable sizes. Failure to do so may result in re or electric shock.
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Observe the specied screw tightening torque for the connector. Failure to do so may result in re or damage to
equipment.
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Use a motor, gearhead, and driver only in the specied combination. An incorrect combination may cause re,
electric shock, or damage to equipment.
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When the electromagnetic brake motor is used in an application of vertical drive such as elevating equipment,
operate it after checking the condition of a load suciently so that a load in excess of the rated torque is not
applied or a small value is not set in the torque limiting value. Failure to do so may result in injury or damage to
equipment.
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Always turn o the power before performing maintenance/inspection. Failure to do so may cause injury.
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Regularly check the openings in the driver for accumulated dust. Failure to do so may result in re.