The following document gives a breakdown of the wiring diagram for the Elcon-J1772 adapter.
At the moment, the car is charged using an EVSE charger which complies with the J1772 standard.
Our end goal is to draw power and feed into our Elcon charger. In doing so, we have purchased the female connection port to the flo G5 Level 2 charger shown above. More information regarding the Elcon charger can be found here Charger Interface Board: MS 14 :
Female EVSE Charger Connections
Above is the 5-port female connection. Starting at the bottom most pin and going clockwise, the pin call outs are as follows:
Chassis Ground
Control Pilot
N
L
Proximity Detection
From this, 3 of the wires are to be connected to the Elcon charger and 2 will be connected to the Charger Interface board. More information about the Elcon Charger can be found here MS14 Charger (Elcon UHF IP67 sealed and potted 3.3KW)
Charger Interface Board Connection
The control pilot and proximity detection lines are to be crimped to an Ultrafit connector and attached to the charger interface board
Elcon Charger Input
It is connected using an AC connector. 2.5 square mm wire.
Match the connections from left to right with the L, Chassis Ground, and N connections respectively mentioned above.
Elcon Charger DC Output
The mating connector is Anderson SB-50, (8AWG).
Elcon Charger CAN Output
The mating connector is PP0450003. (The CANH and CANL wires are 0.3 square mm and the 12V 5A wires are 0.75 square mm.)
This 4-pin connection will be attached to the Charger Interface board shown below.
Regulations
As per ASC’s (American Solar Challenge) charging requirements:
“MOVs (Multi-occupant vehicle) must be equipped with an onboard charger. During the Event, only metered level 1 or level 2 charging is permitted using Electric Vehicle Supply Equipment (EVSE) provided or designated by the Event. The only acceptable power sources for charging are grounded 120 VAC NEMA 5-15 outlets, 240 VAC NEMA 14-50 outlets (TBD), or other Event designated sources. Generators with 3-wire 120 VAC or 240 VAC outlets are also acceptable sources. When charging from an external power source, the BPS must always actively monitor the battery state. In case of a BPS fault condition where the main power switches controlled by the BPS open, the output of the MOV charger must also disconnect from the battery pack. To minimize BPS faults, the onboard charger must curtail charging automatically when the main battery pack approaches a full charge.”
We are currently using a level 2 charging arrangement so MSXIV is within regulation.