ZEN V2 Units
34
• Locations with high humidity subject to condensation
• Locations subject to excessive dust or dirt
• Locations subject to corrosive gas
• Locations subject to direct sunlight
• Do not install the ZEN in locations subject to shock or vibration.
Extended use in such locations may cause damage from stress.
• In environments subject to static electricity (e.g., close to pipes
conveying forming materials, powders, or fluid materials), separate
the ZEN as far as possible from the source of static electricity.
• The ZEN is neither waterproof nor oil-proof. Do not use it in
locations subject to water or oil.
• Use the ZEN within the allowable power supply voltage range. Be
particularly careful in locations with bad power supply conditions,
e.g., large fluctuations in the power supply voltage.
• Do not install the ZEN in locations subject to excessive noise,
which may cause the ZEN to fail.
• Take appropriate and sufficient countermeasures when installing
systems in the following locations:
• Locations subject to strong electromagnetic fields
• Locations subject to possible exposure to radioactivity
Power Supply
• Always turn OFF the power supply to the ZEN before attempting
any of the following.
• Assembling the ZEN
• Connecting or disconnecting any cables or wiring
• Attaching or removing the Memory Cassette
• Attaching or removing the Battery Unit
• If the power supply is interrupted for two days or more (at 25°C),
the internal capacitor will discharge and internal bit status and the
contents of PV areas will be lost or corrupted and dates and times
will be reset. When restarting operation after the power supply has
been interrupted for an extended period of time, check the system
in advance to confirm that no errors will occur.
Handling
• Connect connectors only after confirming that the direction or
polarity is correct.
• Failures could result if dust or dirt enters the ZEN. Always connect
the connector cover to the computer connector whenever it is not
being used.
• Do not remove the label from the left side of the CPU Unit if a
Battery Unit is not mounted.
Other
• The execution of the ladder program in the ZEN is different from
that for other PLCs. Refer to Difference between ZEN
Programmable Relays and PLC Ladder Program Execution on
page 32.
• Abide by all local ordinances and regulations when disposing of the
ZEN.
• The Battery Unit (ZEN-BAT01, sold separately) contains a lithium
battery. Observe all applicable legal requirements for your area
when disposing of the lithium battery.
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
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