Fan Control - B&R Industries MAPPC900-ENG User Manual

2.2.1.6 Fan control

The MTCX constantly monitors the temperature using temperature sensors, which directly determines how the
fans are controlled. The speed depends on the measured temperature. Limit values may depend on the MTCX
firmware version being used.
Position Measurement point
for
A Display
B CPU
C Board controller
D Chipset
E Board power supply
F CFast
G Slide-in drive 1
H Interface option
1)
1) A temperature sensor is currently not integrated in the interface options.
Once the startup temperature is reached, the device is started at the minimum fan speed. The maximum fan speed
is reached at a startup temperature of 16°C. The fan speed in this area is controlled depending on the temperature.
Example with slide-in drive 5AC901.SDVW-00: 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).
Panel PC 900 User's Manual V1.05
Startup temperature
5AP923.1215-00: 70°C, 5AP923.1505-00: 70°C,
5AP923.1906-00: 65°C, 5AP933.156B-00: 65°C,
5AP933.185B-00: 65°C, 5AP933.215C-00: 70°C,
5AP933.240C-00: 65°C
65°C
70°C
70°C
70°C
60°C
5AC901.SDVW-00: 44°C, 5AC901.SSCA-00: 55°C
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Table 16: Temperature sensor locations
Technical data • Complete system
Max. fan speed at:
5AP923.1215-00: 86°C, 5AP923.1505-00: 86°C,
5AP923.1906-00: 81°C, 5AP933.156B-00: 81°C,
5AP933.185B-00: 81°C, 5AP933.215C-00: 86°C,
5AP933.240C-00: 81°C
81°C
86°C
86°C
86°C
76°C
5AC901.SDVW-00: 60°C, 5AC901.SSCA-00: 71°C
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