Mitsubishi GOT 1000 GT16, User Manual

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MAINTENANCE AND IN
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ENDICES
9. MAINTENANCE AND INSPECTION
The GOT does not include consumable components that will cause the shorten life.
However, the battery, liquid crystal screen and backlight have each life length.
It is recommended to replace the battery and the cold cathode tube backlight periodically.
(For the replacement of the liquid crystal screen, please consult Mitsubishi (Electric System) Service.)
Refer to the following section for the lives of the battery, liquid crystal screen and backlight.
3.2 Performance Specifications
WARNING
• Connect the battery correctly.
Do not discharge, disassemble, heat, short, solder or throw the battery into the fire.
These may cause the buttery to burst or fire.
• Do not touch the terminals while the power is on.
Doing so can cause an electric shock.
• Before starting cleaning or retightening the terminal screws, always switch off the external power supplies used in
the system in all phases.
Cleaning or retightening the terminal screws while the power is on may cause an electric shock.
• Make sure to shut off all phases of the GOT power externally (When the GOT is connected by the bus connection,
also externally shut off all phases of the PLC CPU power.), and remove the GOT from the control panel. Then,
replace the cold cathode tube backlight.
Not switching off the power in all phases may cause an electric shock.
Not removing the unit from the control panel can cause injury due to a drop.
CAUTION
• Do not disassemble or modify the unit.
Doing so can cause a failure, malfunction or fire.
• Do not touch the conductive and electronic parts of the GOT directly.
Doing so can cause a unit malfunction failure.
• The cables connected to the unit must be run in ducts or clamped.
Not doing so can cause the unit or cable to be damaged due to the dangling, motion or accidental pulling of the
cables or can cause a malfunction due to a cable connection fault.
• When unplugging the cable connected to GOT, do not hold and pull the cable portion.
Doing so can cause the unit or cable to be damaged or can cause a malfunction due to a cable connection fault.
• Before insert/remove the connection cable, power off the GOT.
Not doing so can cause a failure or malfunction.
• When replacing the cold cathode tube backlight, wear gloves.
Otherwise, it may cause you to be injured.
• Replace the cold cathode tube backlight more than 5 minutes later after shutting off the GOT power.
Failure to do so may cause a burn due to the heat of the cold cathode tube backlight.
• Do not drop or give an impact to the battery mounted on the unit.
Doing so can cause the battery to be damaged due to the drop or the impact, making the battery liquid to leak in the
battery.
Do not use but dispose the battery that is dropped or given an impact.
• Before touching the unit, be sure to touch grounded metal or similar objects to discharge the static electricity from
human body.
Not doing so can cause a failure or malfunction of the unit.
• When disposing of the product, handle it as industrial waste.