Operation principle and hardware description 31
Layout
General
The DC input terminals are located at the top of the module and the AC output
terminals are located at the bottom of the module.
The ZCU-14 control unit is mounted onto the module. The control unit contains the
basic I/Os and slots for optional I/O modules. For descriptions of the I/O terminals on
the control unit, see Connecting the control unit on page 85.
Other optional equipments are primarily installed on separate mounting plates.
The modules are fitted with external DC fuses. The frames R1...R4 modules have an
internal capacitor pre-charge circuit.
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