Kendrion Kuhnke Automation GmbH
Construction and Functionality
Econo
57
6.2 Temperature Sensor
Run the web interface or use CODESYS library "kics_sysinfo" to take a reading of the temperature sensor in
the CPU. The reading allows you to judge the capacity load usage of the unit and the ventilation. The table
below relates the CPU temperature to the ambient temperature at about 80% CPU load.
The CPU's rated maximum working temperature is 105 °C.
CPU working temperature after thermal compensation
Conditions
Ambient temperature
CPU temp.
Power supplied: 28.8V
80% CPU load
20°C
54°C
30°C
64°C
40°C
74°C
50°C
82°C
60°C
82°C
The graph below illustrates how the CPU life depends on the CPU temperature. To prevent the CPU from
wearing down prematurely, try not to exceed max. 100 °C under continuous duty. Ensure sufficient
ventilation when the unit is operating.
In extended commercial mode, both Scout and Vico run at 792 MHz (green borderline).
Temperature Monitoring
Use the following hands-on limits should your project require that the unit's temperature be monitored:
Alert at CPU temperature >=95 °C for longer than 10 minutes
(machine keeps running).
Alert at CPU temperature >=99 °C for longer than 15 minutes
(machine stops).
Alert at CPU temperature >=102 °C for longer than 15 seconds
(machine stops).
Alert at CPU temperature >=104 °C for longer than 1 second
(machine stops).
