Safety precautions
5
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Operation
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When operating the lineard motor, pay attention to the speed and travel amount settings. Use appropriate settings
to prevent the rack from coming off. The maximum operating speed of the rack is 500 mm/s. If the travel amount
or acceleration/deceleration time is not set properly, the rack will not stop even after a limit sensor is detected. As a
result, the rack may come off and cause injury or equipment damage.
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Turn off the driver power in the event of a power failure, or the lineard motor may suddenly start when the power
is restored and may cause injury or damage to equipment.
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Do not turn the C.OFF (All windings off) input “ON” while the lineard motor is operating. If this input is turned ON,
the lineard motor will stop and the holding force will be lost. As a result, the rack may drop and cause injury or
equipment damage.
Maintenance and inspection
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Do not touch the connection terminals of the driver immediately after the driver power is turned off (for a period
of 10 seconds). The residual voltage may cause electric shock.
Repair, disassembly and modification
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Do not disassemble or modify the lineard motor or driver. This may cause electric shock or injury. Refer all such
internal inspections and repairs to the branch or sales office from which you purchased the product.
General
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Do not use the lineard motor and driver beyond their specifications, or electric shock, injury or damage to
equipment may result.
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Keep your fingers and objects out of the openings in the driver, or electric shock, injury or damage to equipment
may result.
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Occasionally the grease applied to the rack may drip or a small amount of grease may ooze out from the rack. If
there is concern over possible environmental damage resulting from the leakage of grease, check for grease stains
during regular inspections. Alternatively, install an oil pan or other device to prevent leakage from causing further
damage. Oil leakage may lead to problems in the customer’s equipment or products.
Transportation
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Do not hold the lineard motor by the rack, motor or cables alone. The lineard motor or rack may drop, resulting in
injury.
Installation
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Keep the area around the lineard motor and driver free of combustible materials in order to prevent fire or a burn.
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To prevent the risk of damage to equipment, leave nothing around the lineard motor and driver that would
obstruct ventilation.
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Securely affix the lineard motor onto a grounded metal plate. Failure to do so may result in electric shock, injury or
equipment damage.
•
Provide a cover for the rack of the lineard motor. Failure to do so may result in injury.
Operation
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Use a lineard motor and driver only in the specified combination. An incorrect combination may cause a fire.
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Provide an emergency-stop device or emergency-stop circuit external to the equipment so that the entire
equipment will operate safely in the event of a system failure or malfunction. Failure to do so may result in injury.
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Before supplying power to the driver, turn all control inputs to the driver to “OFF.” Otherwise, the lineard motor may
start suddenly and cause injury or damage to equipment.
•
Before moving the rack directly (as in the case of manual positioning), confirm that the driver C.OFF (All windings
off) input is “ON” to prevent injury.
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Do not touch the rack (especially the tooth surface) while the motor is operating. Injury may result.
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Immediately when trouble has occurred, stop running and turn off the driver power. Failure to do so may result in
fire, electric shock or injury.
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The lineard motor’s surface temperature may exceed 70 °C (158 °F), even under normal operating
conditions. If a lineard motor is accessible during operation, post a warning label shown in the
figure in a conspicuous position to prevent the risk of burns.
•
To prevent electric shock, use only an insulated screwdriver to adjust the internal switches.
Warning label
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For the control input/output signal power supply, use a power supply with reinforced insulation provided on the
primary side, and provide it separately from the power supply for the electromagnetic brake. Failure to do so may
result in electric shock.
•
Do not touch the lineard motor or the driver while the driver is conducting current. The surface is hot and may
cause a burn.
