Datasheet

3.1.16 Axial fans
SEPA EUROPE GmbH • D-79108 Freiburg • Tel.: [phone] • Fax: [phone]
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x
ALARM SIGNAL (Optional)
The SEPA
®
MFB50ExxA include a pulse output, which allows monitoring the correct function of the fan.
An alarm-board is available on request.
MFB50ExxA: The pulse is like a rectangular wave, the frequency correlates to 2 x rotor speed. At blocked
rotor the output signal could be L (d0.2V) or H (Vcc). A pull-up-resistor is needed.
IMPORTANT: The pulse output is not protected against short circuit and must not connect to GND or
Vcc without pre-resistor.
Do not connect not used pulse output (insulate).
Do not touch the rotor!
The MFB50Exx(A) have tinned lead wire ends (without connector).
+
-
blk
yel
red
-
+
FAN ALARM-CIRCUIT
T
1n
OUTPUT WAVEFORM
Run: L=0.2Vmax; H=Vcc; STOP=L or H
T(5V)=8.55msec, T(12V=6.25msec
MFB50ExxA
(Uce<15V, Ic=5mA
max
)
x ACCESSORIES:
CONNECTOR on request
x ORDER INFORMATION:
MFB50E05 SEPA fan 50x50x10mm, 5VDC, ball bearing, CE 515061000
MFB50E05A SEPA fan 50x50x10mm, 5VDC, pulse, ball bearing, CE 515061010
MFB50E12 SEPA fan 50x50x10mm, 12VDC, ball bearing, CE 515062000
MFB50E12A SEPA fan 50x50x10mm, 12VDC, pulse, ball bearing, CE 515062010