Hardware description
A.2 Internal interfaces
SIMATIC IPC647E
168
Operating Instructions, 11/2018, A5E45589180-AA
A.2.7
Power supply fan monitoring
Pin
Name
Meaning
1
Reserved
-
2
Reserved
PWM,
speed setting ATX AC-SV
3
Reserved
-
4
Tacho signal
Input monitoring signal
5
PS_Status
Input status of redundant PS
6
Reserved
Reserved for fan failure of redundant PS
7
Quittung_Status
Output; Acknowledgment of acoustic alarm signal of redundant
power supply (signal is open when module is switched on)
8
Ground
-
A.2.8
Fan port
Pin
Name
Meaning
1
GND
Ground
2
VCC
+12 V fused
3
Tacho signal
Input monitoring signal
4
PWM
Output speed setting
A.2.9
Supply for the serial ATA drives
Pin
Name
Meaning
1
+12 V
Output power supply
2
GND
Ground
3
GND
Ground
4
+5 V
Output power supply
5
+3.3 V
Output power supply
