
Preface
FP3700-T41 User Manual iii
• Because of the ever present danger of electrical shock, be
sure to unplug the power cable from the FP unit before plug-
ging the cable's other end into the wall.
• Do not use power in excess of the unit's specified voltage
range since it may cause a fire or electric shock.
• Because the FP unit contains high voltage parts, an electric
shock can occur when disassembling the unit. Therefore,
be sure to always unplug the unit before disassembling it.
• Do not modify the FP unit in any way, since it may cause a
fire or electric shock.
• Do not use touch panel keys to perform life-threatening or
vitally important safety functions. Use separate mechani-
cal switches for such keys.
• Do not use the FP unit as a warning device for critical alarms
that can cause serious operator injury, machine damage or
production stoppage. Critical alarm indicators and their con-
trol/activator units must be designed using stand-alone
hardware and/or mechanical interlocks.
•After the FP’s backlight burns out, unlike the FP’s “Standby
Mode”, the touch panel is still active. If the operator fails to
notice that the backlight is burned out and touches the panel,
a potentially dangerous machine miss-operation can occur.
Therefore, do not use FP touch switches for the control of
any equipment safety mechanisms, such as Emergency Stop
switches, etc. that protect humans and equipment from in-
jury and damage.
If your FP's backlight suddenly turns OFF, use the following
steps to determine if the backlight is actually burned out.
1) If your currentFP application is not set to turn the back-
light OFF, and the screen has gone blank, your backlight is
burned out.
2) If your current FP application is set to turn the backlight
OFF, if touching the screen does not cause the display to
reappear, your backlight is burned out.
WARNINGS