Set direct/reverse operation to reverse operation.
(The factory default is for reverse operation.)

When you set the temperature (e.g., to 100 °C), the control output will turn ON when the temperature is below the set temperature and will turn OFF when it's above the set temperature.

If the temperature falls below the set temperature again, the output will turn ON again.
The point at which the output turns ON is also affected by the hysteresis setting.

Applicable Models: All Omron's Temperature Controllers