Omron ZEN User Manual

xix
Precautions
Installation Environment
1. Do not install the ZEN in the following locations.
• Locations subject to radical changes in temperature
• Location with high humidity subject to condensation
• Locations subject to excessive dust or dirt
• Locations subject to corrosive gas
• Locations subject to direct sunlight
2. Do not install the ZEN in locations subject to shock or vibration. Extended use in
such location may cause damage from stress.
3. 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.
4. The ZEN is neither waterproof nor oil-proof. Do not use it in locations subject to
water or oil.
5. 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.
6. Do not install the ZEN in locations subject to excessive noise, which may cause
the ZEN to fail.
7. 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
1. Always turn OFF the power supply to the ZEN (CPU Unit and Expansion I/O
Units) before attempting any of the following.
• Assembling the ZEN
• Attaching or removing Expansion I/O Units
• Connecting or disconnecting any cables or wiring
• Attaching or removing the Memory Cassette
• Attaching or removing the Battery Unit
2. If the power supply is interrupted for 2 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
1. Connect connectors only after confirming that the direction or polarity is correct.
2. 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.
Precautions for Correct Use
Z211-E1-03.book Page xix Friday, November 21, 2008 10:38 AM

Omron ZEN Specifications

General

Display	LCD
Mounting Type	DIN Rail
Operating Temperature	-10 to 55°C
Power Supply Voltage	100-240V AC
Output Type	Relay, Transistor
Number of Outputs	4-8
Programming Language	Ladder Logic