Page 8 - Catalogue
P. 8
G. SPEED TESTING
REFLECTIVE POINT
15cm
COOLING FAN INFRANED VELOCIMETER
H. OUTPUT SINAL
Frequency Generator (FG)
The fan outputs a set of square wave signals corresponding to the frequency of the fan
runing.The system collects and calculates the fan speed and displays it on the terminal.
Fan Application
V
Ic=10mA Max VFG
FG Output
T1～T4=(1/4)*T (SEC)
n=60f/p
n=Speed (RPM)
GND P=Pole number
VOL
T
Rotation Detector (RD)
When the fan is in an accident (the lower limit of the set value of the low speed or the power
on and shutdown state),Output high level signal for client system to collect as the trigger
signal of client system fault alarm.
Fan Application
V
Rotor Locked
Ic=10mA Max
VRD
RD Output
Rnuning
GND
Vol
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