
M800/M80/E80 Series Maintenance Manual
6 Replacing Each Unit
149
IB-1501273-F
6.2 Control Unit
Always replace the control 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) Disconnect all the external cables from the control unit.
For M800S/M80/E80, also disconnect the internal cables from the control unit. (MENUKEY, BL and TP connectors)
(3) Remove the screws fixing the control unit, and remove the control unit from the control unit installation fitting. (Loosen
the lower fixing screw(s) first, and then remove the upper fixing screw(s) while supporting the control unit with a
hand.Then lift the control unit upward and take it off. The lower fixing screw(s) do(es) not need to be removed.)
(4) Install a new control unit onto the control unit installation fitting with fixing screws.
(5) Connect all the cables back to the control unit. (Always connect the cables to the designated connectors.)
(6) Confirm that all the cables are correctly connected and close the door of the electric cabinet or operation panel.
(1) Wire the control unit optical cable as shown below. Refer to "M800S/M80/E80 Series Connection and Setup Manual"
and "M800W/M80W Series Connection and Setup Manual" when handling and wiring optical communication cable.
Replacement procedures
CAUTION
1. Incorrect connections could cause devices to damage. Connect the cables to designated connectors.
2. Do not replace the control unit while the power is ON.
3. Do not connect or disconnect the cables between units while the power is ON.
Note
Recommended clamp material
CKN-13SP
KITAGAWA INDUSTRIES
Optical communication cable
(section with reinforced sheath):
Bending radius: Refer to
the specification of
your optical communication cable.
Optical communication cable
(section without reinforced sheath):
Bending radius: Refer to
the specification of
your optical communication cable.
Control unit
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