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VEC300 with 5kW motor

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Corchard:
I need help again.   I've given up on the curtis ET-134 and will be using a 10KOhm Potentiometer and some switches and I have a couple (More) questions.

Is there a configuration of the throttle wires (black/white), (green/white) and (red/white) that can be managed by an ON (Green light)-OFF-ON (Red Light) lighted switch such that the OFF position does not send signal regardless of the potentiometer resistance?
Pinout:
   1 Green light on
   2 Common (+ve)
   3 Red light on
   4 Negative

For the above configuration, how can the can the Red light on position enable the reverse (brown and black) switch to throw the motor in reverse?

For reference my Parts list is
- elock: https://www.bluesea.com/products/2155/SPDT_Remote_Control_Contura_Switch_-_ON-ON
- potentiometer/Throttle: https://www.digikey.ca/en/products/detail/te-connectivity-passive-product/3-1625931-1/2363861?s=N4IgTCBcDaIIIEYAMBWA7GNBaAcgEQAIQBdAXyA
-rocker switch: https://www.digikey.ca/en/products/detail/cw-industries/GRB260D501BBRG1/2349704?s=N4IgTCBcDaIMIHUCMYAsBaAcgERAXQF8g

Bikemad:
Hi Charles,

Unless you have a 12V electrical system on your sailboat, using those switches is not going to be straightforward because the LEDs in the rocker switch and the one in the eLock switch will not survive with your 52V battery unless you add suitable resistors on the negative terminal to reduce the voltage across the LEDs.
Unfortunately, the manufacturer's datasheet doesn't list the current draw for the LEDs on the rocker switch, so it is difficult to say what size additional resistor will be required.
The 12V eLock switch would require an additional 1 Watt resistor of approx 3kOhms on the ground wire for the 12V LED to work correctly with your 52V battery (or 4x 3kOhms 1/4W resistors wired in series/parallel like the 30 Ohm resistors shown below).



The only way I can see to use that rocker switch to control the throttle and reverse function would require a couple of 48V relays (one to switch reverse and the other to switch the throttle signal), a diode and a couple of resistors (1.6kOhm and 8.4kOhm) used in series as a simple voltage divider to simulate the fully closed throttle signal voltage (~0.8V) from the 5V supply while the switch is in the centre position (both relays released).
The diode ensures that the throttle relay is energized in both the forward and reverse switched positions.



If your sailboat does have a 12V battery system you can simply use a couple of 12V Relays instead of the 48V relays shown, and you won't need to worry about having additional resistors for the LEDs in both Switches.

I suggest that you check if the potentiometer you listed has 3 pins as it only shows 2 pins in the datasheet, and you will definitely need all three pins to use it with the VEC-300 controller:





Alan
 

Corchard:
Thank you Alan,

I'll give up on the LED for now and go back to just a simple arrangement of: switch for on/off for the controller, a separate switch for the reverse and the potentiometer for throttle control. 

Just confirming that the Elock is at 12 V and reverse and throttle are at 5V?

A simple 12V switch can control on/off by closing/shorting the elock wires/pins?
A simple 5V switch can control the reverse function by closing/shorting the reverse wire/pins?
The 10k Ohm potentiometer can be wired direct or needs the 1K Ohm and 2k Ohm resistors indicated in the diagram you provided?

Bikemad:
The eLock wire on the VEC controller is typically supplied with full battery voltage to activate the controller - NOT 12V.
The voltage on the throttle +5V wire is typically around 4.5~5V but I'm not sure what voltage is on the reverse wire before it is switched to ground to select reverse.

As the eLock and reverse switches are only switching a very small amount of current, a simple non-illuminated 12V switch should work fine (even with a 48V battery).

The 1.5k Ohm and 2k Ohm resistors indicated in the diagram are required to ensure the throttle signal voltage stays within the expected range:



Without these resistors, the Throttle voltage range protection could be activated at both ends of the potentiometer's travel (i.e. below 0.7V or above 4.0V) causing the motor to cut out and the 12 beep/blink error code to be displayed.

If the resistors are not used, the Throttle voltage range protection enable value would have to be set to 2:Disable to prevent the 12 beep/blink error from being triggered. However, this could prove to be extremely dangerous if the ground wire going to the potentiometer suddenly failed and became disconnected while the controller was powered up, as the motor could continue to run regardless of the potentiometer position!  :o

Alan
 

Corchard:
Hello Again Forum....

I'm still struggling with the setup and am trying yet another route.   I've purchase the Thumb Throttle for external controllers https://goldenmotor.bike/product/48v-thumb-throttle-for-external-controllers/ and just trying to confirm the wiring to the vec300.

The three sets of connectors:

throttle wire             Controller wire            notes         
Red                            Red                           Throttle +5v
Black                          Black                         Throttle Ground
White                        Green                        Throttle signal

Brown                        ??
Yellow                        ??

Green                        Battery +                  Optional battery monitor LED 48V
Black                         Ground                      Optional ground  for above

Are the brown and yellow intended to switch the controller power  (Elock orange , Battery + Red)?  Is it optional?

Is this a hall sensor device or potentiometer for the Throttle mode selection?

And I swear that I tried to determine the answers in this forum or from the online documentation but couldn't find what I needed.

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