Essential Safety Precautions - Pro-face GP-2300 Series User Manual

Preface

Essential Safety Precautions

This manual includes procedures that must be followed to operate the GP cor-
rectly and safely. Be sure to read this manual and any related materials thoroughly
to understand the correct operation and functions of this unit.
Safety Icons
Throughout this manual the following icons are provided next to GP operation
procedures requiring special attention, and provide essential safety information.
These icons indicate the following levels of danger:
System Design
• Do not create GP touch panel switches that could possibly
endanger the safety of equipment and personnel. Damage
to the GP, its I/O unit(s), cable(s), and other related equip-
ment can cause an output signal to remain continuously
ON or OFF and possibly cause a major accident. There-
fore, design all monitoring circuits using limit switches,
etc. to detect incorrect device movement. To prevent acci-
dents related to incorrect signal output or operation, de-
sign all switches used to control vital machine operations
so they are operated via a separate control system.
• Please design your system so that equipment will not
malfunction due to a communication fault between the GP
and its host controller. This is to prevent any possibility of
bodily injury or material damage.
• Do not use the GP unit as a warning device for critical
alarms that can cause serious operator injury, machine
damage or production stoppage. Critical alarm indicators
and their control/activator units must be designed using
stand-alone hardware and/or mechanical interlocks.
• The GP is not appropriate for use with aircraft control
devices, aerospace equipment, central trunk data trans-
mission (communication) devices, nuclear power control
devices, or medical life support equipment, due to these
devices' inherent requirements of extremely high levels of
safety and reliability.
4
Indicates situations where severe bodily
Warning
injury, death or major equipment damage
can occur.
Indicates situations where slight bodily
Caution
injury or machine damage can occur.
WARNINGS
GP-2300/2301 Series User Manual