Appendix 6. Precautions for Wiring M700 Series
6.1 Connecting the Optical Fiber Cable
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Appendix 6. Precautions for Wiring M700 Series
6.1 Connecting the Optical Fiber Cable
An optical fiber cable is used for communication between the control unit and MDS-D/DH Series drive unit.
Special precautions, differing from the conventional cable, are required when laying and handling the optical
fiber cable.
6.1.1 Outline of Optical Fiber Cable and Names of Each Part
20.3
22.7
150
35
7
Optical connector
Fiber code/connector connection section
Fiber cord
Bushing
Reinforced
sheath
To ensure the system performance and reliability, purchase the optical fiber cable from Mitsubishi. A
machining drawing is given in "Appendix 2." as reference, but the purchased optical fiber cable cannot be cut
or connected by the machine tool builder.
6.1.2 Precautions for Handling Optical Fiber Cable
(1) A protective cap is attached to the optical module and optical fiber cable mounted on the PCB when the
system is delivered. Leaving this protective cap unattached could result in connection faults from the
adherence of dirt and dust. Do not remove the protective cap when not connecting the cable. If dirty,
wipe off lightly with a piece of dry gauze, etc. (Do not use solvents such as alcohol as the optical fiber
material could melt.)
(2) Hold the connector section when connecting or disconnecting the optical connector. Holding the fiber
cord will result in force exceeding the tolerable tension on the fiber cord and connector connection
section, and could cause the fiber cord to dislocate from the optical connector thereby inhibiting use.
(3) The optical connector cannot be connected in reversed. Check the connector orientation when
connecting the optical fiber cable to the optical module. Align the connector lock lever with the lock holes
on the PCB's optical module, and press the connector straight in. Confirm that the lock lever connects
with the optical module and that a "click" is heard.
(4) When disconnecting the optical fiber cable from the PCB, press the lock release buttons on the lock lever,
and pull out the cable while holding the connector section. The connector could be damaged if the cable
is pulled without pressing down on the lock release buttons.
(5) Do not apply excessive force onto the optical fiber cable by stepping on it or dropping tools, etc., on it.