HEIDENHAIN ITNC 530 - Internal Power Supply and Housing Fan

July 2010 3 – 675
3.3.8 Internal power supply and housing fan
Via the PLC you can capture and evaluate the current values of the internal power supply and
the speed of the housing fan.
The permanent speed monitoring (speed > 1500 min
-1
) of the housing fan of the MC/CC can be
switched off with MP4020 bit 13.
Module 9133 Output of hardware information
Call:
PS B/W/D/K <>Mode>
0: Internal temperature sensor in [°C]
1: Temperature CPU1 (basic PCB) in [°C]
2: Temperature CPU2 (additional PCB) in [°C]
3: Voltage of buffer battery in [mV]
4: 5-V supply voltage of main board in [mV]
5: 3.3-V supply voltage in [mV]
6: Rotational speed of the housing fan in [min
-1
]
CM 9133
PL B/W/D <>Value>
Error recognition:
MP4020 PLC Functions
Format: %xxxxxxxxxxxxxx
Input: Bit 13 – Monitoring the housing fan of the MC/CC
0: Monitoring active
1: Inactive
Markers Markers Markers
M4203 0 Value was determined
1 Error code in W1022
W1022 2 Invalid number given
8 No second CPU present (for code 2)