●
About grease of the geared motor
On rare occasions, a small amount of grease
may ooze out from the geared motor. 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.
●
Maximum static torque at excitation
The maximum static torque at excitation
represents the torque when the motor is excited
at the rated current. If the motor is combined
with a dedicated driver, the automatic current-
cutback function reduces the maximum static
torque at excitation to around 40 percent. (The
specific value varies, depending on the motor
standstill current that is set.) Once started, the
motor can be accelerated or operated at the
maximum static torque at excitation. However,
the holding torque drops to around 40 percent
while the motor is at a standstill. Therefore,
when selecting a motor consider the reduced
holding torque at motor standstill of around 40
percent of the maximum static torque at
excitation.
●
Driver connectors
Always use the supplied connectors for
connecting the power supply, I / O signals and
motor to the driver. When crimp-fitting the leads
to the contact, secure a strong connection using
a crimping tool as specified by the connector
manufacturer. Oriental Motor does not supply
crimping tools.
12
●
Overhung load
Always operate the motor within the allowable
overhung load.
Continuing to operate the motor under an
overhung load exceeding the allowable value
may damage the motor bearing or output shaft.
●
Motor case temperature
When operating the motor, keep the motor’s
case temperature to 100°C or below.
If that temperature exceeds 100°C due to
operating conditions (ambient temperature,
operating speed, duty, etc.), the motor coil may
be burned or the life of the bearing shortened.
●
Driver’s heat-sink temperature
When operating the motor, keep the driver’s
heat-sink temperature to 80°C or below.
If the temperature exceeds 80°C, the driver may
be damaged.
●
Provide a measure to retain the position
of the equipment’s movable part when
this unit is used in an vertical application
The motor loses its holding-brake force when
the power is cut off. Therefore, provide a
measure to retain the position of the
equipment’s movable part when this unit is used
in an vertical application such as a lifter.
●
Measure insulation resistance or conduct
a dielectric-strength test on your product
alone
Measuring insulation resistance or conducting
dielectric-strength test with the motor and driver
connected may damage your product.
This section covers the limitations and points to note regarding use of the
CSK
Series.
Precautions for use