Hardware manual

111
LT-4201TM/4301TM Hardware Manual
8
LT-4201T M/4301TM Hardwa re Manua l
Display Modules
Panel Overview
Introduction
The LT is a Human Machine Interface product that has a
n operating voltage of
24 Vdc.
The table describes the LT characteristics:
Critical Systems, Detected Alarms and Handling Requirements
Critical detected alarm indicators and system functions require independen
t and
redundant protection hardware and/or mechanical interlocks.
If the unit for any reason becomes inoperative (fo
r example, an inoperative
backlight) it may be difficult or impossible to identify operation. Operations that may
present a hazard if not immediately executed, such as emergency stop, must be
provided independently of the unit. The design of the control system must take into
account an inoperative unit (backlight) and the operator may be is unable to control
the machine or respond to detected errors with the unit.
After turning OFF the LT
, be sure to wait at least 10 seconds before turning it ON
again. The LT may not operate correctly if it is restarted too quickly.
Part Number Screen Size Screen (Pixel)
Resolution
Color
Definition
Display Type
LT-4201TM
(Modular Type
DIO)
3.5 in. 320 x 240
(Q
VGA)
65536 colors
and LED
backlight
TFT
LT-4201TM
(Modular Type
Analog)
3.5 inch display
module
LT
-4301TM
(Mo
dular Type
DIO)
5.7 in.
LT
-4301TM
(Mo
dular Type
Analog)
5.7 inch display
module