Mitsubishi Electric M80 Series Maintenance Manual page 198

M800/M80/E80 Series Maintenance Manual
6 Replacing Each Unit
Removal procedures (M800S/M80/E80)
(1) Check that the machine power is turned OFF. (If the power is not OFF, turn it OFF.)
(2) Open the operation panel.
(3) Disconnect the LAN cable and SIO cable of control unit to facilitate the removal.
(4) Disconnect the cable from the expansion unit.
(5) Remove three screws fixing the expansion unit to the control unit.
(6) Install the back cover of the control unit.
(7) Connect the LAN cable and SIO cable to the control unit.
(8) Confirm that all the cables are correctly connected and close the operation panel.
171 IB-1501273-F