Haltech E6X Manual DOS Version - Manual (Page 90)

E6X Manual
90
Off RPM should be set to at least 200 RPM below On RPM, forcing hysteresis in the
switching to prevent the solenoid from oscillating when the engine speed is at the switch
point.
The second configuration is to enable the solenoid for a range of engine speed and to disable
the solenoid when the engine speed falls outside this range. To do this the On RPM is set to
the lower RPM limit of the range and the Off RPM is set at the upper RPM limit, when the
RPM is lower than On RPM the solenoid is disabled, when the RPM is greater than On RPM
but less than Off RPM the solenoid is enabled, when the engine speed is greater than On RPM
and Off RPM then the solenoid is disabled.
13.4 Torque Converter Clutch Lockup (TCC)
This function controls the clutch lockup solenoid on automatic transmissions. The function
has no control parameters and is simply enabled or disabled. This function is used in
conjunction with the torque converter clutch lockup map - refer to 5.3.10 Torque Converter
Control Map, p62 - and the Aux. In function - refer to 4.2.4 The In/Out Set-up Page, p49.
13.5 Electric Thermo Fan Control (TF)
This function can be used to switch a thermo-fan on when the engine temperature exceeds a
certain value. The fan will stay on until the engine temperature drops sufficiently.
Switch On Temp. 0 – 127 °C / 32 - 261 °F
The temperature the engine coolant must exceed to switch the
fan on.
Switch Off Temp. 0 – 127 °C / 32 - 261 °F
The temperature below which the coolant must drop before the
fan will be switched off. This parameter should be around 3-5°
lower than the “Switch On temperature” to prevent the fan from
switching in and out repeatedly.
13.6 Electric Intercooler Fan Control (IF)
This function can be used to switch an intercooler fan on when the intake-air temperature
exceeds a certain value. The fan will stay on until the engine temperature drops sufficiently.
Switch On Temp. 0 – 127 °C / 32 - 261 °F
The temperature the intake-air must exceed to switch the fan on.
Switch Off Temp. 0 – 127 °C / 32 - 261 °F
The temperature below which the intake-air must drop before
the fan will be switched off. This parameter should be around
3-5° lower than the “Switch On temp.” to prevent the fan from
switching in and out repeatedly.