Yaskawa MP920 User's Manual Design - Manual (Page 201)

5 Modules
5.1.2 PS-01 Module
5-6
„ Connecting External Power Supply Terminals
Power Supply Specifications
Supply an 85- to 276-VAC power supply to the external power supply terminals (AC, AC)
of the PS-01 Module, as shown in the following diagram.
Use an AC power supply for the PS-01 Module with low noise interference. If the power
supply has high noise interference, use a noise filter.
Power Supply Connections
Make sure that the wires in the power lines used to connect the power to the external power
supply terminals of the PS-01 Module are the correct size, as specified below. The ambient
temperature and other conditions will affect the allowable current capacity of the power
lines. Check the conditions of use and select cables that are an appropriate size. Always use
twisted wires for power lines.
• Power line wire size: 1.5 mm
2
(AWG16) to 2.5 mm
2
(AWG13)
Use Phillips M4 screws for the external power supply terminals. Use M4 screw crimp termi-
nals on the ends of the power lines.
If a noise filter is used, always wire the primary side separately from the secondary side.
• Do not accidentally leave foreign matter such as wire chips in a Module when wiring.
This may cause fires, failures, and malfunctions.
• Make sure that the polarity of the power lines connected to the external power supply
terminals is correct.
Incorrect polarity of the connections at the terminals may damage the Module.
CAUTION
85- to 276-VAC power supply
AC: External power supply terminal
AC: External power supply terminal
FG: Protective ground terminal
SG: Internal power supply ground terminal