Connection
−11−
5.2 Grounding
Note Be sure to ground the motor and driver. Failure to do so may result in electric shock or damage to
the product. Static electricity may cause damage to the product if the Protective Earth Terminals
are not grounded.
Connector type
Ground using the Protective Earth Terminals of
the motor and driver, as well as the ground terminal
of the connection cable.
Connect the ground terminal of the connection cable
to the driver as shown in the gure.
However, the grounding resistance value provided
in the standards that is applied to the equipment may
not be satised depending on the type or length of
the connection cable.
In this case, ground near the motor using the
Protective Earth Terminal
on the motor.
If the ground terminal of the connection cable is not
used, be sure to insulate.
For the driver, ground near the driver using the
Protective Earth Terminal
.
Do not share the Protective Earth Terminal with a
welder or any other power equipment.
Grounding
Protective Earth
Terminal
Protective Earth Terminal
Be sure to ground.
Reference
Protective earth wire of the connection cable
Conductor size: AWG18 (0.75 mm
2
)
Maximum conductor resistance: 25.0
Ω
/km
Cable type
Be sure to ground using the Protective Earth Terminal
of the motor and the Protective Earth Terminal
of the driver.
Two Protective Earth Terminals
are provided on
the driver. Ground either of the two Protective Earth
Terminals near the driver. You can ground either of
the two Protective Earth Terminals
. The terminal
that is not grounded is used as a service terminal. Use
the service terminal according to your specic need,
such as connecting it to the motor in order to ground
the motor. Do not share the Protective Earth Terminal
with a welder or any other power equipment.
Protective Earth
Terminal
Be sure to ground.
Be sure to ground either of
the Protective Earth Terminals.
Protective Earth Terminal
Grounding
Grounding
Connecting to Protective Earth Terminal
To connect to the Protective Earth Terminal, ground using the following grounding terminal. Ground as a short
distance as possible.
Ground terminal
•
Applicable crimp terminal: Round crimp terminal with insulation cover
•
Thread size of terminal: M4
•
Tightening torque: 1.2 N·m (10.6 lb-in)
•
Applicable lead wire: AWG18 to 14 (0.75 to 2.0 mm
2
)
4.8 (0.19) or less
Ø4.1 (0.16) or more
Precautions about static electricity
Static electricity may cause the driver to malfunction or suffer damaged.
Be sure to ground the motor and driver to prevent them from being damaged by static electricity.
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