Appendix A • Maintenance Controller Extended (MTCX)
406
Automation PC 810 with GM45 CPU board user's manual V1.28
Sensor range
Start-up temperature
Max fan speed at:
CPU
65°C
81°C
Board CPU
65°C
81°C
Board I/O
60°C
76°C
Board ETH2
60°C
76°C
Board Power
60°C
76°C
Power Supply
60°C
76°C
ETH2 controller
70°C
86°C
Slide-in 1/2
44°C
60°C
Table 298: Temperature limits of the fan (MTCX PX32 V0.06).
Once the start-up temperature is reached, the device is started at the minimum fan speed. The maximum fan speed
is reached at a start-up temperature of 16°C. The fan speed in this area is controlled depending on the temperature.
For example, slide-in 1/2: 44°C + 16°C = 60°C --> maximum fan speed
The fans will only be shut off again if the evaluation temperature is more than 6°C below the switch-on temperature
for a period of 4 hours (=overshoot time).
