BECKHOFF CB1052 User Manual
Page 45
Internal Connectors
Chapter: Connectors
Beckhoff New Automation Technology CB1052
page 45
3.4.11 Fan Connectors
Four 3 pin connectors are available for controlling and monitoring external fans (12 volt). For the
monitoring the fans must provide a corresponding speed signal.
Pinout fan connector:
Pin
Name
Description
1
GND
ground
2
12V
12 volt supply regulated
3
TACHO
fan monitoring signal
N
OTE
The FAN4 connector doesn't have pin 3 connected (N/C).