Pro-face PL-6930-T41, Руководство пользователя

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3
Handling
Wiring
Maintenance
Be sure to use redundant and/or fail-safe system designs to ensure adequate levels of system reliability
and safety when using the PL with transportation vehicles (trains, cars and ships), disaster and crime pre-
vention devices, various types of safety equipment, non-life support related medical devices, and other
similar equipment.
After the PL unit’s backlight burns out the touch panel is still active, unlike the PL unit’s “Standby Mode”. If
the operator fails to notice that the backlight is burned out and touches the panel, a potentially dangerous
machine operation error can occur. Therefore, do not create PL unit touch panel switches that may cause
injury and/or equipment damage.
If your PL unit’s backlight suddenly turns OFF, use the following steps to determine if the backlight is actu-
ally burned out.
1) If the PL unit’s “Backlight Control” is not set and the screen has gone blank, your backlight is burned
out.
2) If the PL unit’s “Backlight Control” is set to Standby Mode and the screen has gone blank, and touching
the screen or performing another input operation does not cause the display to reappear, your backlight
is burned out.
Do not modify the PL unit. Doing so may cause a fire or an electric shock.
Do not operate the PL in an environment where flammable gases are present, since it may cause an
explosion.
To prevent an electric shock be sure to disconnect your PL unit’s power cord from the power supply before
wiring the PL.
Do not use voltage beyond the PL unit’s specified range. Doing so may cause a fire or an electric shock.
Do not connect or disconnect Host and PL unit communication cables while the PL is turned ON.
The PL uses a lithium battery for backing up its internal clock data and the battery may explode if it is
replaced incorrectly. When replacement is required, use a Pro-face-designated product.
SEE
8.6 Replacing the Internal Battery (page8-15)