Safety Precautions - Vexta aStep AS Series Operating Manual

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.
Warning
Handling the product without observing the instructions that accompany a "Warning" symbol may result in serious
injury or death.
Caution
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.
General
• Do not use the product in explosive or corrosive environments, in the presence of flammable gases, locations
subjected to splashing water, or near combustibles. Doing so may result in fire, electric shock or injury.
• Assign qualified personnel the task of installing, wiring, operating/controlling, inspecting and troubleshooting the
product. Failure to do so may result in fire, electric shock or injury.
• Do not transport, install the product, perform connections or inspections when the power is on. Always turn the power
off before carrying out these operations. Failure to do so may result in electric shock.
• The terminals on the driver's front panel marked with
Do not touch these terminals while the power is on to avoid the risk of fire or electric shock.
• Provide a means to hold the moving parts in place for applications involving vertical travel. The motor loses holding
torque when the power is shut off, allowing the moving parts to fall and possibly cause injury or damage to
equipment.
• Do not use the motor's built-in electromagnetic brake mechanism for stopping or for safety purposes. Using it for
purposes other than holding the moving parts and motor in position may cause injury or damage to equipment.
• When the driver-protection function is triggered, the motor will stop and lose its holding torque, possibly causing injury
or damage to equipment.
• When the driver's protection function is triggered, first remove the cause and then clear the protection function.
Continuing the operation without removing the cause of the problem may cause malfunction of the motor, leading to
injury or damage to equipment.
Installation
• To prevent the risk of electric shock, use the motor and driver for class I equipment only.
• Install the motor and driver in their enclosures in order to prevent electric shock or injury.
• Install the motor and driver so as to avoid contact with hands, or ground them to prevent the risk of electric shock.
Connection
• Keep the driver's input-power voltage within the specified range to avoid fire and electric shock.
• Connect the cables securely according to the wiring diagram in order to prevent fire and electric shock.
• Do not forcibly bend, pull or pinch the cable. Doing so may fire and electric shock.
• To prevent electric shock, be sure to install the terminal cover (supplied) over the driver's power-supply terminals
after making connections.
Operation
• Turn off the driver power in the event of a power failure, or the motor may suddenly start when the power is restored
and may cause injury or damage to equipment.
• Do not turn the C.OFF (All Windings Off) input to "ON" while the motor is operating. The motor will stop and lose its
holding ability, which may result in injury or damage to equipment.
• If the driver's OPERATION LED does not come on when the power is turned on, shut off the power immediately. The
neutral-side fuse may be burnt out while the live-side fuse is intact, posing a risk of electric shock. For repair, contact
the branch or sales office from which you purchased the product.
4
Warning
symbol indicate the presence of high voltage.