Datasheet

3.1.10 Axial fans
SEPA EUROPE GmbH • D-79108 Freiburg • Tel.: [phone] • Fax: [phone]
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x
ALARM SIGNAL
The SEPA
®
MFB40H05A and MFB40H05LA include a pulse output, which allows monitoring the correct
function of the fan. An alarm-board is available on request.
The pulse is like a rectangular wave, the frequency correlates to 2 x rotor speed. At blocked rotor the
output signal could be L (d0.4V) or H (5V).
IMPORTANT: The pulse output is not protected against short circuit and must not connect to GND or
Vcc without pre-resistor. A pull-up-resistor is needed.
Do not connect not used pulse output (insulate).
The MFB40H05xx has tinned lead wire ends (without connector).
+
-
blk
yel
red
-
+
FAN
ALARM-CIRCUIT
T
1n
OUTPUT WAVEFORM
Moved: L=0.4Vmax; H=Vcc; Stop: H or L
T
(LA)
=7.9msec T
(A)
=10.3msec
MFB40H05A/LA
(Uce<15V, Ic<10mA)
x ACCESSORIES:
CONNECTOR: on request
x ORDER INFORMATION:
MFB40H05 SEPA
£
Miniature fan, 40x40x10mm, 5VDC, ball bearings, CE 514081000
MFB40H05L SEPA
£
Miniature fan, 40x40x10mm, 5VDC, ball bearings, CE 514081100
MFB40H05A SEPA
£
Miniature fan, 40x40x10mm, 5VDC, ball bearings, pulse, CE 514081010
MFB40H05LASEPA
£
Miniature fan, 40x40x10mm, 5VDC, ball bearings, pulse, CE 514081110