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

2
Essential Safety Precautions
All safety-related procedures stated in this document must be followed to operate the HTB correctly and safely. Be sure to
read this and any related documents thoroughly to understand the correct operation and functions of the HTB.
Safety Icons
Throughout this manual, these icons provide essential safety information for HTB operation procedures requiring special
attention. These icons indicate the following levels of danger:
DANGER OF ELECTRIC SHOCK AND FIRE
RISK OF UNINTENDED EQUIPMENT OPERATION
Failure to follow this precaution can result in death, serious injury, or equipment damage.
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.
A significant amount of current may be present on each relay output (up to 2A).
There is a risk of current overload resulting in possible shock and/or fire.
• Use appropriately sized cables for the load potential.
• Protect each output with an appropriately sized fuse.
Do not add or remove an expansion module to or from the system before first removing all power. Adding
or removing an expansion module while under power can cause damage to the module and the system
resulting in unexpected operation of inputs and outputs. Depending on the I/O configuration, unintended
equipment operation can occur.
Keep adequate spacing around the island for proper ventilation and to maintain an ambient temperature
between 0°C (32°F) and 55°C (131°F).
Overheating of HTB and/or the I/O expansion modules can result in unexpected operation of inputs and
outputs. Depending on the I/O configuration, unintended equiment operation can occur.