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Chapter 4: ‘Setup’ Menu Options
Hardware- Setup Menu (cont.)
Brake Inertia Correction (Only in ‘BRAKE’ mode): If you have a brake style dyno and are performing ‘ramp’ runs
then the inertia of your dyno may be a considerable factor. If you select this option, and have the Inertia value correctly
entered, then DYNertia3 will basically operate as both Inertia and brake dyno simultaneously i.e. it will calculate the
power used to accelerate the mass as well as derive the power from the load cell.
Note: Excessive inertia built into a brake dyno (i.e. an inertia dyno with a brake added) will result in incorrect results as
high inertia will mean the load cell will not be reading as the brake will have no control of the ramp rate until power
overcomes the inertia effect, if at all!
After Run Auto Braking/Vehicle Loading:
Note: The use of the “Brake” output depends on the dyno type you
have setup. If you have a load controller connected then the settings
even alter to allow interaction with the operation of the eddy brake.
The ‘Brake’ output terminal may be used to operate an automatic brake for slowing the flywheel down if you wish,
operating a vehicle lift/jack to remove vehicle from rollers, an automatic cooling fan for friction style brakes or to control
the eddy retarder for vehicle removal if a load controller is fitted.
No load controller fitted- ‘Brake’ output terminal can go active from after a run is stopped and remain on for the time
set in ‘After Run Auto Brake’. It can also be manually activated for a pre-set time (‘Pulsed Brake Timeout’) or toggled
on/off at will.
load controller fitted- As above regarding the output terminal, however simultaneously in conjunction with the ‘Brake’
output terminal the actual eddy retarder is also powered with maximum power (to its set power limit). This function is for
locking the rollers to allow easier vehicle removal on a chassis dyno.
To allow this the ‘Retarder activated for vehicle loading/unloading’ should be enabled.
Besides the automatic function upon ending a test, the brake output
can alternatively be briefly operated (based on ‘Puled Brake Timeout’)
by manually selecting the icon (visible on both GRAPH and DYNO
screen) with a ‘Left’ click, this allows for setting up safely and also
applying brief braking pulses
Alternatively a ‘Right’ click on the icon will hold the output on
continuously until another ‘Right’ click is done again i.e. ‘Right’ click
toggles the output state. If not allocated to a brake; this output would be
perfect for remotely turning on a cooling fan etc.
Note: Further details for the complete output functions are outlined in the chapter “Outputs- Using”
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