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Chapter 16: Load Controllers
Eddy Current Load Controller Wiring
Eddy controller wiring (basic- no accessories)
Power the Load control unit from a separate 12VDC power supply, separate, not the vehicles. It then in-turn supplies the
DYNertia3 control unit with power.
A spare battery is ideal or a mains adapter that can deliver > 500mA, if you plan on running an AFR meter from the
same supply then you will need >3A.
Low supply voltage can cause poor operation of the Load control unit and therefore the brake.
If you use a battery for supply then do not use a battery charger connect whilst you operate, being connected can affect
operation.
Note: Eddy current brake must be wired for 192VDC operation. As standard, they are usually wired for 192VDC if
sourced from a modern dyno, some old dyno (and if from a truck retarder application) may be wired for 12 or 24VDC.
This must be confirmed and the brake reconfigured if incorrect. Retarder coils are generally 12VDC so 192VDC involves
all 16 coils connected in series. See DTec website ‘downloads’ for information (‘Brake Chassis Design Tool’).
Contact us if any doubts!
The Power Control Module is a small unit that is permanently wired into the Load Controller unit (via small white and
brown wires). This keeps the high power circuitry isolated (to reduce interference) from the load controller.
KEY POINTS- Brake must be configured for 192VDC and keep the wiring simple initially.
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