Safety Precautions For Using Motors - Delta ASDA-B3 Series User Manual

Installation

2.4 Safety precautions for using motors

The Delta AC servo motor is designed for industrial applications. It is necessary that you fully
2
understand the motor specifications and operation manual. For your safety and correct use,
read the manual, specifications, and precautions for the motor carefully before connecting the
motor to any equipment.
The safety precautions are as follows:
Handling, mounting, and storage
 When removing or installing a servo motor, hold the whole motor instead of holding the
cable or only the motor shaft.
 Do not hit the motor shaft. Impact force will damage the shaft and the encoder that is
attached at the rear end of the shaft.
 Keep the axial or radial shaft load within the allowable range listed in the specifications.
 The shaft of the servo motor is not water- or oil-proof. Do not use, install, or store the servo
motor in an environment that contains water, oily liquids, corrosive and inflammable gases,
or is with high humidity.
 The material of the motor shaft is not rustproof. Although rustproof oil has been applied to
the shaft during the manufacturing process, you must check the shaft condition and apply
rustproof oil every three months if storing the motor for more than six months.
 Ensure that the environmental conditions for storing the servo motor conform to the
specifications in the instruction sheet.
 The encoder attached to the motor is easily damaged; take the necessary steps to avoid
electromagnetic interference, vibration, and abnormal temperature changes.
Wiring
 If the current exceeds the maximum current in the specifications, the internal parts of the
motor may lose their magnetism. Contact the distributor or local Delta sales representative if
this problem occurs.
 Check that the motor wiring and the voltage of the motor brake are correct. Also, make sure
that the wiring of the encoder power and signal cables is correct. Incorrect wiring will lead to
abnormal operation, malfunction, or damage of the motor.
 To avoid capacitive coupling and noise, isolate the motor power cable from the encoder
power and signal cables. Do not connect them to the same circuit.
 The AC servo motor must be correctly grounded.
 The encoder connector must not undergo any high-voltage component test because it will
damage the encoder.
 When the motor or brake is undergoing high-voltage component tests, cut off the power
supply for the controller. You should perform this kind of test only when necessary so as to
maintain the product lifespan.
2-6
ASDA-B3