YASKAWA MP23 Series Manual page 7

 Wiring
• Be sure to wire correctly and securely.
Failure to observe this caution may result in motor overrun, injury, or malfunction.
• Always use the specified power supply voltage.
An incorrect voltage may result in burning.
• Take appropriate measures to ensure that the input power supply is supplied within the specified voltage
fluctuation range. Be particularly careful in places where the power supply is unstable.
An incorrect power supply may result in damage to the product.
• Install external breakers or other safety devices against short-circuiting in external wiring.
Failure to observe this caution may result in fire.
• Take appropriate and sufficient countermeasures for each when installing systems in the following loca-
tions.
• Locations subject to static electricity or other forms of noise.
• Locations subject to strong electromagnetic fields and magnetic fields.
• Locations subject to possible exposure to radioactivity.
• Locations close to power supplies.
Failure to observe this caution may result in damage to the product.
• Do not reverse the polarity of the battery when connecting it.
Failure to observe this caution may damage the battery or cause it to explode.
• Before turning ON the Machine Controller main unit power supply, configure the circuit that turns it ON.
If the Machine Controller main unit power supply is turned ON after an external power supply such as a 24-V power
supply for the I/O is turned ON, the output from the option output module may be momentarily turned ON. For
details, refer to 8 Wiring.
• Implement countermeasures outside of the Machine Controller to ensure the safety of the overall system
even if any of the following conditions occurs.
• The Machine Controller fails or an error occurs due to external factors.
• The self-diagnosis function of the Machine Controller detects an error, stops operation, and either turns OFF or
holds the signal outputs.
• A Machine Controller output remains ON or OFF as the result of fusing or burning of the output relay or destruction
of the output transistor.
• The output voltage drops because the 24-VDC output from the Machine Controller is overloaded or short-circuited,
preventing outputting the signal.
Failure to observe this caution may result in injury, damage to the product, or burning.
• Configure emergency stop circuits, interlock circuits, and limit circuits related to safety in control circuits out-
side of the Machine Controller.
Failure to observe this caution may result in injury or damage to the product.
• When using MECHATROLINK I/O Modules, use establishing MECHATROLINK communications as an
interlock condition.
Failure to observe this caution may result in damage to the product.
CAUTION
E-5
5 Notes for Safe Operation