YASKAWA MP2000 Series User Manual page 9


Wiring
 Check the wiring to be sure it has been performed correctly.
There is a risk of motor overrun, injury, or an accident.
 Always use a power supply of the specified voltage.
There is a risk of burning.
 In places with poor power supply conditions, take all steps necessary to ensure that the input power supply
is within the specified voltage range.
There is a risk of device damage.
 Install breakers and other safety measure to provide protection against shorts in external wiring.
There is a risk of fire.
 Provide sufficient shielding when using the Machine Controller in the following locations.
There is a risk of device damage.
 Noise, such as from static electricity
 Strong electromagnetic or magnetic fields
 Radiation
 Near to power lines
 When connecting the battery, connect the polarity correctly.
There is a risk of battery damage or explosion.
 Only qualified safety-trained personnel should replace the battery.
If the battery is replaced incorrectly, machine malfunction or damage, electric shock, or injury may result.
 When replacing the battery, do not touch the electrodes.
Static electricity may damage the electrodes.

Selecting, Separating, and Laying External Cables
 Consider the following items when selecting the I/O signal lines (external cables) to connect the Machine
Controller to external devices.
• Mechanical strength
• Noise interference
• Wiring distance
• Signal voltage, etc.
 Separate the I/O signal lines from the power lines both inside and outside the control box to reduce the
influence of noise from the power lines.
If the I/O signal lines and power lines are not separated properly, malfunctioning may result.
CAUTION
CAUTION
Example of Separated External Cables
Steel separator
General
Digital I/O
Power
control
signal
circuit
circuit
cables
cables
cables
ix