ix 
Precautions for Operation 
 
1) It takes approximately two seconds for the outputs to turn ON from after the power supply is turned ON. Due 
consideration must be given to this time when incorporating Temperature Controllers into a control panel or 
similar device. 
2)  Make sure that the Temperature Controller has 30 minutes or more to warm up after turning ON the power 
before starting actual control operations to ensure the correct temperature display. 
3)  When executing self-tuning, turn ON power for the load (e.g., heater) at the same time as or before 
supplying power to the Temperature Controller. If power is turned ON for the Temperature Controller before 
turning ON power for the load, self-tuning will not be performed properly and optimum control will not be 
achieved. When starting operation after the Temperature Controller has warmed up, turn OFF the power 
and then turn it ON again at the same time as turning ON power for the load.   
4)  Avoid using the Controller in places near a radio, television set, or wireless installing. The Controller may 
cause radio disturbance for these devices. 
 
Preparations for Use 
 
Be sure to thoroughly read and understand the manual provided with the product, and check the following 
points. 
 
Timing  Check point  Details 
Product 
appearance 
After purchase, check that the product and packaging are not dented or 
otherwise damaged. Damaged internal parts may prevent optimum 
control. 
Purchasing 
the product 
Product model 
and specifications 
Make sure that the purchased product meets the required 
specifications. 
Setting the 
Unit 
Product 
installation 
location 
Provide sufficient space around the product for heat dissipation. Do not 
block the vents on the product. 
Do not subject the terminal screws to excessive stress (force) when 
tightening them. 
Make sure that there are no loose screws after tightening terminal 
screws to the specified torque (E5CSV: 0.74 to 0.9 N·m, E5CS-U:   
0.5 N·m).   
Terminal wiring 
Be sure to confirm the polarity for each terminal before wiring the 
terminal block and connectors. 
Wiring 
Power supply 
inputs 
Wire the power supply inputs correctly. Incorrect wiring will result in 
damage to the internal circuits. 
Ambient 
temperature 
The ambient operating temperature for the product is −10 to 55°C (with 
no condensation or icing). To extend the service life of the product, 
install it in a location with an ambient temperature as low as possible. In 
locations exposed to high temperatures, if necessary, cool the products 
using a fan or other cooling method. 
Vibration and 
shock 
Check whether the standards related to shock and vibration are 
satisfied at the installation environment. (Install the product in locations 
where the conductors will not be subject to vibration or shock.) 
Operating 
environment 
Foreign particles  Install the product in a location that is not subject to liquid or foreign 
particles entering the product. 
When installing the product in a location subject to sulfuric, chloride, or 
other corrosive gases, take steps to improve the environment, such as 
removing the source of the gas or installing an exhaust fan.