Safety precautions
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2 Safety precautions
The precautions described below are intended to prevent danger or injury to the user and other personnel through safe,
correct use of the product. 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.
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 the product, perform connections or inspections when the power is on. Always turn o the power before
carrying out these operations. Accidental contact may result in electric shock.
The terminals on the speed controller front panel marked with
symbol indicate the presence of high voltage. Do not touch the
CN1 and CN3 while the power is supplied. Doing so may result in re or electric shock.
Do not forcibly bend, pull or pinch the cable. Doing so may result in re or electric shock.
Do not touch the connector of the speed controller immediately after the power is turned o (for a period of 1 minute). Doing so may
result in electric shock.
Do not disassemble or modify the motor and speed controller. Doing so may result in electric shock or injury.
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 or injury.
Install the speed controller in an enclosure. Failure to do so may result in electric shock or injury.
For the AC power supply voltage of the speed controller, use the same power supply voltage as the motor specication. Failure to do so
may result in re or damage to equipment.
The speed controller has no built-in fuse for overcurrent protection. Be sure to connect a device for fuse in the AC power supply line.
Failure to do so may result in re.
Securely connect and ground in accordance with the section for connection. Failure to do so may result in re or electric shock.
Be sure to observe the specied cable sizes. Failure to do so may result in re.
Insulate the connection terminals of the included capacitor using the included capacitor cap. Accidental contact may result in electric shock.
Do not use the motor and speed controller beyond their specications. Doing so may result in electric shock, injury or damage to equipment.
Do not carry the motor by holding the motor output shaft or motor lead wires. Doing so may cause injury.
Keep the area around the motor and speed controller free of combustible materials. Failure to do so may result in re or a skin burn(s).
Do not leave anything around the motor and speed controller that would obstruct ventilation. Doing so may result in damage to equipment.
Do not wire the electromagnetic contactor or power relay between the motor and speed controller. To switch the rotation direction
using the electromagnetic contactor may cause damage to equipment.
Do not touch the rotating part (output shaft) while operating the motor. Doing so may cause injury.
Do not use the product in vertical drive (elevating application). Doing so may result in injury or damage to equipment.
If an alarm of the speed controller is generated, remove the cause before resetting the alarm. Failure to do so may result in injury or
damage to equipment.
Securely install the motor and speed controller to the mounting plate and DIN rail respectively. Inappropriate installation may cause
the motor and speed controller to drop, resulting in injury or equipment damage.
Use a motor and speed controller only in the specied combination. Failure to do so may result in re.
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.
Be sure to ground the motor and speed controller to prevent them from being damaged by static electricity. Failure to do so may result
in damage to equipment.
If abnormal conditions occurred, stop the operation immediately and turn o the speed controller power. Failure to do so may result in
re, electrical shock or injury.
Conduct the insulation resistance measurement or dielectric strength test separately on the motor and speed controller. Conducting
while the motor and speed controller are connected may result in damage to equipment.
The motor surface temperature may exceed 70 °C (158 °F) even under normal operating conditions. If the operator is
allowed to approach the motor in operation, attach a warning label in a conspicuous position as shown in the gure.
Failure to do so may result in a skin burn(s).
Warning label
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