Datasheet
Axial-Fan
SEPA
EUROPE GmbH
●
D-79427 Eschbach Tel.: +49(0)7634/59459-0
●
Fax: +49(0)7634/59459-299
Technical changes without notice ● 04/15
MFB40H24
HIGH PERFORMANCE FAN
•
••
• ALARM SIGNAL (Optional)
The SEPA
®
fans MFB40H24A include a pulse output, which allows monitoring the correct function of the fan.
The pulse is like a rectangular wave, the frequency correlates to 2x rotor speed. The amplitude appears periodically.
At blocked rotor the output signal could be L (≤0,2V) or H (Vcc).
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 (insolate).
The fans MFB40H24x have tinned lead wire ends (without connector).
Do not touch the rotor! Please note the handling specification!
+
-
blk
yel
r
ed
-
+
AXIAL FAN
ALARM
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CIRCUIT
T
1n
OUTPUT SIGNAL
Run: L=0.2Vmax; H=V
cc
; Stop: H or L
T=5.2msec
MFB40H24A
5mA
max
Pull-up-res.
•
••
• ACESSORIES:
Connector: on request
•
••
• ORDER INFORMATION (Delivery time on request)
MFB40H24 SEPA
Axial fan, 40x40x10mm, 24VDC, Ball bearings, CE, 514083000
MFB40H24A SEPA
Axial fan, 40x40x10mm, 24VDC, Ball bearings, FG, CE, 514083010
SEPA
®
is the brand name for fans and CPU-cooler, made by Nippon Keiki Works LTD., Tokyo