6.6 Fan logic
The AGC is able to control four different fans. This could for example be air supply fans for supplying air to a genset in a closed
enclosure, or radiator fans for switching on and off cooling fans for air coolers.
There are two features in the fan control of the AGC:
1. Priority rearranging depending on running hours of the fans
2. Temperature-dependent start and stop
A priority routine ensures that the running hours of the available fans are evened out and the priority shifts between them.
The functionality behind the temperature-dependent start/stop is that the AGC measures a temperature, for example cooling water
temperature, and based on this temperature it switches on and off relays that must be used for engaging the fan(s) itself.
INFO
The fan control function is active as long as running feedback is detected.
6.6.1 Fan parameters
Each fan has a group of parameters that defines their scheme of operation. It is recommended to use the PC utility SW for the
setup, because then it is possible to see all parameters. The setup of the fan control is done in the menus 6561-6620 and by using
M-Logic in the PC utility SW.
Parameters
6.6.2 Input for fan control
The fan control requires a temperature input in order to start and stop the fans based on a temperature measurement.
DESIGNER'S HANDBOOK 4189341275A EN Page 117 of 196
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