Installation Instructions
Seite/Page 92 - Kaptitel/Chapter 5: Installation Instructions 16.1.15
5.14 Electronic fan control for DC fans RE 0201
For DC Fans the fan control RE 0201 can be used.
Fig. 5.14-1:
5.15 Brief description
Temperature-dependent continuous speed controlling device for one or two DC-fans.
5.15.1 Function
The speed regulation of the fan is made by pulse tracing modulation (PWM) of the operating voltage. Pulse/no pulse
ratio becomes over an external temperature sensor (NTC resistance to attach at clamp 7 and 8) dependent on the
coolant temperature. Between the lower limit temperature (starting temperature) and the upper limit temperature the
fan is controlled with 30 to 100% of the available operating voltage (PWM = 30% to 100%).
Potentiometer for adjustment concerning temperature and PWM behaviour
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