3handling wiring maintenance – Proface APL3000B - Node Box PC User Manual
Page 4
3
Handling
Wiring
Maintenance
When using the PS-A unit with transportation vehicles (trains, cars, and ships), disaster and crime preven-
tion 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 PS-A unit’s backlight burns out the touch panel is still active, unlike the PS-A 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 PS-A unit touch panel switches
that may cause injury and/or equipment damage.
If your PS-A unit’s backlight suddenly turns OFF, use the following steps to determine if the backlight is
actually burned out.
1) If the PS-A unit’s “Backlight Control” is not set and the screen has gone blank, your backlight is burned
out.
2) If the PS-A 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 PS-A unit. Doing so may cause a fire or an electric shock.
Do not operate the PS-A unit in an environment where flammable gases are present, since it may cause
an explosion.
To prevent an electric shock be sure to disconnect your PS-A unit’s power cord from the power supply
before wiring the PS-A unit.
Do not use voltage beyond the PS-A unit’s specified range. Doing so may cause a fire or an electric
shock.
Do not connect or disconnect Host and PS-A unit communication cables while the PS-A unit is turned ON.
The PS-A unit 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 replacement product.
SEE