AH500 Hardware and Operation Manual
D-2
D.1 Cautions
Before users undertake the maintenance and the inspection, they have to pay attention to the
following items. The incorrect or careless operation will lead to damage to the staff and the
equipment.
To prevent a breakdown of an AH500 system or a fire accident, please make sure that the
ambient environment is not exposed to corrosive substances such as chloride gas and sulfide
gas, flammable substances such as oil mist and cutting powder, or dirt.
To prevent the connectors from oxidizing, or to prevent the staff from getting an electric shock,
please do not touch the connectors.
To prevent the staff from getting an electric shock, please turn off the power before pulling the
connectors or loosening the screws.
To prevent the cables from being damaged, or to prevent the connectors from being loosened,
please do not impose weight on the cable, or pull them violently.
Please make sure that the input voltage is within the rated range.
Please do not disassemble or alter the modules. Otherwise, the products will break down, a fire
accident will occur, or the staff will be injured.
To prevent a controlled element from malfunctioning, please make sure that the program and the
parameters are written into a new CPU module which replaces an old one before restarting the
To prevent the improper operation which results in the incorrect output or the damage to the
equipment, please refer to the related manuals for more information about operating the
To prevent the damage to the modules, please touch metal which is grounded or wear an
antistatic wrist strap to release the static electricity from the body.
To prevent the noise from resulting in the breakdown of the system, please keep a proper
distance from the system when using a cell phone or a communication apparatus.
Please avoid installing an AH500 system under the sun or in a humid environment.
To prevent the temperature of an element from being high, please make sure that the AH500
system keeps a proper distance from heat sources such as coils, heating apparatuses, and
To protect an AH500 system, please install an emergency stop switch and an overcurrent
protection according to the actual needs.
Inserting and pulling a module several times may lead to the loose contact between the module
and the backplane.
To prevent an unexpected shock from resulting in the damage to an AH500 system and a
controlled element, please make sure that the modules are installed firmly.
Do not supply power to AH500 Series CPU modules. Via a shared backplane, they are powered
by a connected power module that comply with the Safety Extra Low Voltage (SELV)
If the equipment is used in a manner not specified by the manufacturer, the protection provided
by the equipment may be impaired.
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