Prohibited, Built-in fuses – Yaskawa MP920 User's Manual Design User Manual
Page 203
5 Modules
5.1.2 PS-01 Module
5-8
Built-in Fuses
The PS-01 Module has a built-in fuse to prevent the burning of the Module resulting from
the following causes.
• External causes:For example, if a PS-01 Module external power supply terminal is sub-
jected to overvoltage.
• Internal causes:For example, if a wire chip or other foreign wiring matter is left in the
PS-01 Module causing a short-circuit failure in an internal circuit.
If the PS-01 Module built-in fuse is blown, the POWER indicator on the front panel of the
PS-01 Module will turn OFF. After eliminating the cause of the blown fuse, replace the PS-
01 Module.
• The customer must not replace any built-in fuses.
If the customer replaces a built-in fuse, the PS-01 Module may malfunction or break down.
The built-in fuse must always be replaced by Yaskawa service staff.
FG
SG
FG
SG
AC
FG
SG
AC
AC
AC
AC
AC
PS-01 Module external
wiring terminals
Internal panel ground
wire (1.5 to 2.5 mm
2
)
Control panel casing
Ground terminal (E)
External panel ground wire (8 mm
2
)
Ground pole (ground resistance of 100
Ω or less)
Internal panel ground
wire (1.5 to 2.5 mm
2
)
Internal panel ground
wire (1.5 to 2.5 mm
2
)
PS-01 Module external
wiring terminals
PS-01 Module external
wiring terminals
PROHIBITED