Ascon Tecnologic - PM343 - OPERATING INSTRUCTIONS - PAG. 1
PM74
7” RESISTIVE TOUCH SCREEN
LCD MODULE
User Manual
22/10 - Code: ISTR_M_PM74_E_00_--
ASCON TECNOLOGIC S.r.l.
Viale Indipendenza 56, 27029 - VIGEVANO (PV) ITALY
TEL.: +39 0381 69871 - FAX: +39 0381 698730
sito:
http:\\www.ascontecnologic.com
e-mail:
PREFACE
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This manual contains the information necessary for
the product to be installed correctly and also instruc-
tions for its maintenance and use; we therefore recom-
mend that the utmost attention is paid to the following
instructions and to save it.
This document is the exclusive property of Ascon Tecnologic
S.r.l. which forbids any reproduction and divulgation, even
partially, of the document, unless expressly authorized.
Ascon Tecnologic S.r.l. reserves the right to make any formal
or functional changes at any moment and without any notice.
Ascon Tecnologic S.r.l. and its legal representatives do not
assume any responsibility for any damage to people, things
or animals deriving from violation, wrong or improper use or
in any case not in compliance with the instrument features.
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Whenever a failure or a malfunction of the device may
cause dangerous situations for persons, thing or animals,
please remember that the plant has to be equipped with
additional devices which will guarantee safety.
1. INSTRUMENT DESCRIPTION
1.1
General description
PM74
is aTFT 7” high precision four-wire resistive touch screen
graphic panel. It supports Graphic tools for preload and pre-
design display interface to simplify the host operation and de-
velopment time. Suitable for industry control, instrumentation,
medical electronics, power electric equipment applications.
2. USAGE WARNINGS
2.1
Allowed Usage
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The instrument has been designed as a measurement
and control device, built according to EN60730-1 for
operation at altitudes below 2000 m above sea level.
Using the instrument for applications not expressly permitted
by the above mentioned rule must adopt all the necessary
protective measures.
The instrument
must not be used in dangerous environ-
ments
(flammable or explosive) without adequate protections.
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The installer must ensure that the EMC rules are
respected, also after the instrument installation, if
necessary using proper filters.
2.2
General Notes
• The communication port supports RS232, RS485 and RS422.
• The power ground must be connected to make the HMI
run correctly.
• The communication ground must be connected to make
the HMI communicate correctly.
2.3
Safety Precautions
Notice following safety precautions at any moment when
installing, wiring, operating and checks.
2.3.1
Installation
• Please setup the HMI according to this manual otherwise
it may cause device damage.
• It is forbidden to uncover the product in the environment
that has water vapor, corrosive gas or combustible gas,
otherwise it may cause short circuit or fire.
2.3.2
Wiring
• Please connect the grounding terminal with class-3
ground, otherwise it may cause short circuits or fire.
• The panel uses 24 VDC power supply. Any connection of
non standard power supply will lead to machine damage.
2.3.3
Operation
• PM series HMI need PlStudio editor software to design pro-
ject picture. HMI not designed may lead to run abnormally.
• Do not change wiring while the power is ON, otherwise it
may cause short circuit or device damage.
• Please do not touch panel with sharp objects, otherwise it
may lead to panel damages.
2.3.4
Maintenance
• It is forbidden to touch inside HMl, it may lead to short
circuit or device damage.
• When powered, it is fobidden to dismantle HMI paneI,
otherwise it may lead to short circuit or device damage.
• Do not touch connection terminals within 10 minutes after
turning power OFF: residual voltages may lead to short
circuit or device damage.
• During operation, the ventilation holes must not be sealed,
overheating could easily occur and cause serious failures.
2.3.5
Communication
• Please connect the communication wires according to
this manual.
• The length of the communication cables must meet the
requirements of the adopted standard.
• Use the correct ground loops in order to avoid abnormal
communication.
