
2
Handling the product without observing the instructions that accompany a
“Caution”symbol may result in injury or property damage.
General
yDo not use the motor beyond its specications, or electric shock, injury or
damage to equipment may result.
yDo not touch the motor during operation or immediately after stopping.
The surface is hot and may cause a skin burn(s).
Transportation
yDo not hold the motor output shaft or motor cable. This may cause injury.
Installation
yProvide a cover over the rotating parts (output shaft) of the motor to
prevent injury.
Operation
yDo not touch the rotating parts (output shaft) of the motor during
operation. This may cause injury.
yProvide 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.
yThe motor’s surface temperature may exceed 70 °C
(158 °F), even under normal operating conditions. If a
motor is accessible during operation, post a warning label
shown in the gure in a conspicuous position to prevent
the risk of skin burn(s). Warning label
yFor the power supply input to the electromagnetic brake, use a DC power
supply with reinforced insulation on the primary side.
Maintenance and inspection
yTo prevent the risk of electric shock, do not touch the terminals while
measuring the insulation resistance or conducting a voltage-resistance test.
Disposal
yTo dispose of the motor, disassemble it into parts and components as much
as possible and dispose of individual parts/components as industrial waste.
Precautions for use
This section covers limitations and requirements the user should consider
when using the product.
•Always use the cable (supplied or accessory) to connect the
motor and driver.
Be sure to use the cable (supplied or accessory) to connect the motor and
driver. In the following condition, an appropriate accessory cable must be
purchased separately.
yIf a xible cable is to be used.
yIf a cable of 3 m (9.8 ft.) or longer is to be used.
•Conduct the insulation resistance measurement or withstand
voltage test separately on the motor and the driver.
Conducting the insulation resistance measurement or withstand voltage
test with the motor and driver connected may result in injury or damage to
equipment.
•Do not apply a radial load and axial load in excess of the
specied permissible limit.
Operating the motor under an excessive radial load and axial load may
damage the motor bearings (ball bearings). Be sure to operate the motor
within the specied permissible limit of radial load and axial load.
See USER MANUAL for details.
•Do not use the electromagnetic brake to reduce speed or as a
safety brake.
The electromagnetic brake is of non-excitation type. Although it helps
maintain the position of the load in the event of power outage, etc., this brake
cannot securely hold the load in place. Always stop the motor rst, and then
use the electromagnetic brake to maintain the position of the load.
•Preventing electrical noise
See USER MANUAL for measures with regard to noise.
•About grease of 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.
•Make sure not to hit or apply a strong impact on the motor
output shaft or the encoder.
Applying a strong impact on the motor
output shaft or the encoder may cause
encoder damage or motor malfunction.
The warning label shown in the right is
attached on the motor.
Warning label
•Make sure to provide measures so that the key is not own o
when operating the motor with key in a state where a load is not
installed.
Flying o the key may result in injury or damage to equipment.
Preperation
Checking the product
Verify that the items listed below are included. Report any missing or
damaged items to the branch or sales oce from which you purchased the
product.
yMotor ........................................................1 unit
yOPERATING MANUAL Motor.............1 copy (this document)
yParallel key ..............................................1 pc. (supplied with geared types)
yCable for motor .....................................1 pc. *1
yCable for encoder.................................1 pc. *1
yCable for electromagnetic brake ....1 pc. *1*2
*1 Included in a motor and driver package product.
*2 Supplied with electromagnetic brake motor.
Names of parts
This gure shows the NXM620M.
(4 locations)
Output shaft
Pilot
Elec
brake
Motor
Encoder
Motor cable
Electromagnetic
brake cable
Encoder cable