Functional Safety Expansion Unit [M80] - Mitsubishi Electric M80 Series Maintenance Manual

M800/M80/E80 Series Maintenance Manual
6 Replacing Each Unit

6.8.2 Functional Safety Expansion Unit [M80]

CAUTION
1. Incorrect connections could cause devices to damage. Connect the cables to designated connectors.
2. Do not replace the expansion unit/card while the power is ON.
3. Do not connect or disconnect the cables between units while the power is ON.
Installation procedures
Always install the functional safety expansion unit with the machine power turned OFF.
(1) Check that the machine power is turned OFF. (If the power is not OFF, turn it OFF.)
(2) Open the operation panel.
(3) Open the cover of the control unit.
(4) Fix the functional safety expansion unit to the control unit with two screws.
(5) Close the cover of the control unit.
(6) Confirm that all the cables are correctly connected and close the operation panel.
Removal procedures
(1) Check that the machine power is turned OFF. (If the power is not OFF, turn it OFF.)
(2) Open the operation panel.
(3) Open the cover of the control unit.
(4) Remove two screws fixing the functional safety expansion unit to the control unit.
(5) Close the cover of the control unit.
(6) Confirm that all the cables are correctly connected and close the operation panel.
169 IB-1501273-F