FPΣ User's Manual
6.2 Safety Instructions for Wiring
77
Protection of power supply
• An insulated power supply with an internal protective circuit should be used (FP0-
PSA2 or FP-PS24-050). The power supply for the CPU is a non-insulated circuit, so if
an incorrect voltage is directly applied, the internal circuit may be damaged or
destroyed.
• If using a power supply device without an internal protective circuit, always make sure
power is supplied to the unit through a protective element such as a fuse.
Protection of output sections
If current exceeding the nominal switching capacity is being supplied in the form of a motor
lock current or a coil shorting in an electromagnetic device, a protective element such as a
fuse should be attached externally.
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