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3.1.18 Axial fans

• Alarm Signal (optional)

The SEPA® MFB60DxxLA include a speed impulse output, which enables 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 (<0.3V) or H (Vcc).

IMPORTANT: The pulse output is not protected against short circuit and must not connect to GND or Vcc without series-resistor. A pull-up-resistor is permitted.

Do not connect pulse output wire to GND or Vcc (insulate).

The MFB60DxxL(A) have tinned lead wire ends (without connector manufacturer).

FAN

ALARM-CIRCUIT

OUTPUT WAVEFORM

MFB60DxxLA

red

(Vce<30V, Ic<5mA)

blk,

Run: L=0.3Vmax; H=Vcc; Stop: H or L MFB60D05LA, MFB60D12LA: T=9.1msec MFB60D24LA: T=10.0msec

IMPORTANT: Do not touch the impeller!

• ACCESSORIES:

CONNECTOR on request

• Order information:

MFB60D05L SEPA fan, 60x60x15mm, 5VDC, ball bearing, CE 516041100

MFB60D05LA SEPA fan, 65x60x15mm, 5VDC, pulse, ball industrial bearing, CE 516041110

MFB60D12L SEPA fan, 60x60x15mm, 12VDC, ball bearing, CE 516042100

MFB60D12LA SEPA fan, 65x60x15mm, 12VDC, pulse, ball bearing, CE 516042110

MFB60D24L SEPA fan, 60x60x15mm, 24VDC, ball bearing, CE 516043100

MFB60D24LA SEPA fan, 65x60x15mm, 24VDC, pulse, ball bearing, CE 516043110

SEPA EUROPE GmbH • D-79108 Freiburg • Tel.: +49/761/3842273-0 • Fax: +49/761/3842273-99