170

Speed signal /12

– Speed-proportional, square-wave signal for external monitoring of the fan motor speed

– 2, 3, or 6 pulses per revolution

– TTL-compatible

– Integrated pull-up resistor

– Connection via separate cable

– The sensor signal also serves as a major comparison variable for setting and maintaining

the setpoint speed for interactive or controlled cooling with one or more interconnected

fans.

Electrical hookup

All voltages measured to ground.

Type

VDC

mA

VDC

mA

mA

Page

Signal data

614 N/12 GM

1

2.5–5.5

1

1

39

618 N/12 N

1

2.5–5.5

1

1

39

8412 N/12 H

1

2.5–5.5

1

1

44

4412 F/12 GM

1

2.5–5.5

1

1

53

4418 F/12

1

2.5–5.5

1

1

53

4312 /12 M

1

2.5–5.5

1

1

56

4314 /12

1

2.5–5.5

1

1

56

4182 N/12 X

1

2.5–5.5

1

1

60

Subject to change

Note:

With these fan options, deviations in regard to temperature range, voltage range

and power consumption are possible compared with standard fan data.