Precautions For Correct Use - Omron EJ1 EtherCAT User Manual

Precautions for Correct Use

 Installation
• Connect the EJ1 EtherCAT Slave Unit to the left side of a Basic Unit or an End Unit.
• The EJ1 cannot be used linked to a CJ-series PLC.
 Service Life
• Use the product within the following temperature and humidity ranges.
Temperature: −10 to 55°C (with no icing or condensation)
Humidity: 25% to 85%
When the Temperature Controller is incorporated in a control panel, make sure that the control-
ler's ambient temperature and not the panel's ambient temperature does not exceed 55°C.
• The service life of electronic devices like the Temperature Controller is determined by the service
life of internal electronic components. Component service life is affected by the ambient tempera-
ture: the higher the temperature, the shorter the service life and the lower the temperature, the
longer the service life. Therefore, the service life can be extended by lowering the temperature of
the Temperature Controller.
• Mounting two or more Temperature Controllers side by side, or mounting Temperature Controllers
above each other may cause heat to build up inside the Temperature Controllers, which will
shorten their service life. If the Temperature Controllers are mounted above each other or side by
side, use forced cooling by fans or other means of air ventilation to cool down the Temperature
Controllers.
However, be sure not to cool only the terminals. Doing so will result in measurement errors.
• Take appropriate and sufficient countermeasures when installing the controller in the following
locations.
Locations subject to static electricity or other forms of noise
Locations subject to strong electromagnetic fields
Locations subject to possible exposure to radioactivity
Locations close to power lines
 Precautions for Operation
• It takes a certain amount of time for the outputs to turn ON from after the power supply is turned
ON. Due consideration must be given to this time when designing control panels, etc.
• It takes 30 minutes from the time the product is turned ON until the correct temperature is indi-
cated. Always turn ON the power supply at least 30 minutes before starting temperature control.
• Avoid using the Temperature Controller near a radio, television set, or other wireless device. Its
use would result in reception disturbance.
EJ1 EtherCAT Slave Unit User's Manual (H192)
Precautions for Correct Use
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