Proface AGP3500 - 10.4 DIO HMI" - Manual (Page 3)

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Essential Safety Precautions
All safety-related procedures stated in this document must be followed to operate the GP correctly and safely. Be sure to
read this and any related documents thoroughly to understand the correct operation and functions of the GP unit.
Safety Icons
Throughout this manual, these icons provide essential safety information for GP operation procedures requiring special
attention. These icons indicate the following levels of danger:
System Design
Indicates situations where severe bodily injury, death or major equipment damage
can occur.
Indicates situations where slight bodily injury or minor equipment damage can
occur.
Indicates actions or procedures that should NOT be performed.
Indicates actions or procedures that MUST be performed to ensure correct unit
operation.
Do not make switches using the switches on the touch panels which may cause operator injury and
machine damage. An output may remain either ON or OFF due to a malfunction of the GP unit, it’s I/O
unit(s) or cable(s), which may cause a major accident. To prevent this, set up circuits such as limiters that
will monitor vital output signals. Design switches for important operations to be performed by separate
devices. An incorrect output or malfunction can occur and thereby cause an accident.
Do not create GP touch panel switches to control machine safety operations, such as an emergency stop
switch. Install these switches as separate hardware switches, otherwise severe bodily injury or equipment
damage can occur.
Be sure to design your system so that a communication fault between the GP and its host controller will
not cause equipment to malfunction. This is to prevent any possibility of bodily injury or equipment dam-
age.
Do not use the GP as a warning device for critical alarms that can cause serious operator injury, machine
damage or can halt system operation. Critical alarm indicators and their control/activator units must be
designed using stand-alone hardware with redundancy and/or mechanical interlocks.
Do not use the GP with aircraft control devices, aerospace equipment, central trunk data transmission
(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.