Proface AGP3500 - 10.4 DIO HMI" - Manual (Page 4)

3
Handling
Wiring
Maintenance
When using the ST with transportation vehicles (trains, cars, and ships), disaster and crime prevention
devices, various types of safety equipment, and medical devices that are not life-support related, use
redundant and/or failsafe system designs to ensure proper reliability and safety.
After the ST unit’s backlight burns out the touch panel is still active, unlike the ST 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 ST unit touch panel switches that may cause
injury and/or equipment damage. If your ST unit’s backlight suddenly turns OFF, use the following steps to
determine if the backlight is actually burned out.
1) If the ST unit’s “Backlight Control” is not set and the screen has gone blank, your backlight is burned
out.
2) If the ST 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 ST unit. Doing so may cause a fire or an electric shock.
Do not operate the ST in an environment where flammable gases are present, since it may cause an
explosion.
To prevent an electric shock be sure to disconnect your ST unit’s power cord from the power supply before
wiring the ST.
Do not use voltage beyond the ST unit’s specified range. Doing so may cause a fire or an electric shock.
Do not connect or disconnect Host and ST unit communication cables while the ST is turned ON.
Do not replace the ST unit’s battery yourself. The ST 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, please
contact your local ST distributor.