User manual

LT Series User Manual 7
Preface
• Design your system so that equipment will not malfunction
due to a communication fault between the LT and its host
controller. This is to prevent any possibility of bodily injury
or material damage.
• The LT is not appropriate for use with aircraft control de-
vices, medical life-support equipment, central trunk data
transmission (communication) devices, or nuclear power
control devices, due to their inherent requirements of ex-
tremely high levels of safety and reliability.
• When using the LT 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 sys-
tem designs to ensure the proper degree of reliability and
safety.
• Unlike the LT unit’s “Standby Mode,” after the LT unit’s back-
light burns out, the touch panel is still active. If the opera-
tor fails to notice that the backlight is burned out and
touches the panel, a potentially dangerous machine opera-
tion error can occur. Your backlight is burned out if:
• your LT is not set to “Standby Mode” and the screen has
gone blank
• your LT is set to “Standby Mode,” but touching the screen
does not cause the display to reappear
To prevent an accidental machine operation error, Pro-face
recommends that you use the LT unit’s “USE TOUCH PANEL
AFTER BACKLIGHT BURNOUT” feature, to automatically
detect a burnout and disable the touch screen.
Section 6.4.3 – “Set Up Touch Panel”
DANGERS
WARNINGS