4
5
Safety precautions
Important
Safety precaution in installation (continued)
Caution
Do not drop or topple products.
Preventing damages.
Set up safety devices against idling and locking of the gear
head and grease leakage.
Preventing injury,
damage, contamination
Safety precaution in wiring
Danger
Do not scratch the cable, apply excessive force, place
heavy objects, or pinch it.
Cause of fire, electric
shock damages or
breakage.
Do not use cables when immersed in water or oil.
Cause of fire, electric
shock.
Do not wire with wet hands.
Cause of fire, electric
shock.
Do not connect commercial power directly to brushless
motor cables (U, V, W).
Cause of fire, damages or
breakage.
When inserting the electric wire into a metal duct etc., the
allowable electric current of the electric wire is lowered
due to the temperature rise, so the electric wire is selected
after studying the current reduction coefficient.
Preventing fire, electric
shock or damages.
Wiring has to be carried out by the qualified and
authorised specialist.
Preventing fire, injury,
electric shock, or
breakage.
Connect cables reliably. Insulate the conductive part with
an insulator. And fix the cable so that any stress is not
applied to the connection part such as the connector or
terminal block.
Preventing fire, electric
shock.
Conductive material such as electric wire scraps should not
get inside the product.
Preventing fire, electric
shock.
Turn off the power when wiring or disconnecting wiring.
Preventing electric shock,
damages.
Wire the motor wires (U, V, W) and the CS signal wires
correctly.
Preventing injury,
damages, or breakage.
Caution
Commercial power supply should be used for power
supply of brushless amplifier.
Preventing damages.
When connecting the grounding terminal of the extension
cable, use a terminal block or an insulation sleeve for
insulation.
Preventing electric shock.
Safety precautions during operation
Danger
Do not touch the brushless amplifier or brushless motor as
it will be hot.
Cause of burn.
Do not set very high velocity loop gain, and do not change
the velocity loop gain significantly.
Cause of injuries,
damages.
Do not touch the rotating part of the brushless motor
during operation.
Cause of injuries.
Do not operate with wet hands.
Cause of electric shock.
While energizing, pay attention to unintentional restart
during stop.
Preventing injury.
Turn on and turn off the power after the worker themself
confirms the safety of the surroundings.
Preventing injury.
Turn off the power when touching the motor connector.
Preventing electric shock.
Caution
Do not constrain the output shaft of the motor.
Cause of damages.
Do not start / stop the brushless motor frequently using
the electromagnetic contactor installed on the main
power supply side.
Cause of damages.
In case of overload, do not start / stop by power on / off.
Cause of damages.
Do not turn on / off the power frequently.
Cause of damages.
Do not drive the brushless motor shaft from the outside
regardless of whether the power is on or off.
Cause of electric shock,
fire or damages.
Do not approach the parts driven by the brushless motor
while the power is on.
Cause of injuries.
Brushless motor / brushless amplifier should be used
within the operating temperature range and ambient
humidity range.
Preventing damages.
