Link G4 Plus Software Tutorial: Engine Cooling Fan
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Engine Cooling Fan
01.23
| 00:00 | - Now we're going to configure an engine cooling fan. |
| 00:03 | As with the fuel pump, we need to use a relay to control the fan and we've wired this to auxiliary two. |
| 00:09 | The process is very similar to what we just did for the fuel pump. |
| 00:12 | Access the EU settings menu and then choose aux two. |
| 00:17 | Double click on function and select engine fan from the drop down menu. |
| 00:21 | We now have a few options that are specific to the engine fan output. |
| 00:26 | The polarity is the same as for the fuel pump and again should usually be set to low. |
| 00:31 | We then have the on temperature which is reasonably self explanatory and then hysteresis. |
| 00:35 | The hysteresis prevents the output from cycling on and off when the engine temperature is at the switch on point. |
| 00:43 | Once the fan switches on, the temperature must drop by the hysteresis value before it can switch off. |
| 00:49 | The default value is two degrees and this should be adequate. |
| 00:53 | What this means is that if we have an on temperature set to 94°, and the hysteresis is 2°, then the engine fan will turn on when the temperature reaches 94 and turn off when it drops to 92°. |
| 01:06 | Lastly we have the RPM zero time out. |
| 01:10 | This is the amount of time the ECU will let the fan run for if the ECU is still powered up by the engine isn't running. |
| 01:17 | This is handy to prevent the fan flattening your battery. |
