Installation Instructions
10.6.16 Kapitel/Chapter 5: Installation Instructions - Seite/Page 83
5.19 Electronic fan control for DC fans RE 0201
For DC Fans the fan control RE 0201 can be used.
Fig. 5.19-1:
5.20 Brief description
Temperature-dependent continuous speed controlling device for one or two DC-fans.
5.20.1 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