Description of Units and Circuit Boards8 - 518.3 CPU unit configurationCPU unit consists of circuit board racks (flame, back circuit board, PCI riser circuit board),CPU circuit board, robot I/F circuit board and the machine safety CPU circuit board. TheCPU unit contains only circuit board racks and CPU circuit boards.Be sure that it does not contain robot I/F circuit board and the machine safety CPU circuitboard.Fig. 8-1: CPU Unit ConfigurationPCI Slot for Sensor Board x 1 Compact Flash (CN107)Rotary switch (S1) USB (CN106)I/O I/F (Communication with the op-tional I/O) (CN114)For Programming Pendant (CN105)Drive I/F (communication with basicaxis control circuit board) (CN113)For LAN (CN104)LED Serial port (RS232C) (CN103)Robot I/F circuit board JANCD-YIF01-2EI/O I/F (Communication with the func-tional safety circuit board) (CN203)CPU board (machine safety) JANCD-YSF21-EI/O I/F (Communication with the ma-chine safety I/O logic circuit board: 2-channel side) (CN202)CPU board JANCD-YCP21-E PCI Slot X21 92 103 114 125 136 147 158 16
