Recent Posts1
General Discussions / Re: VEC300 with 5kW motor
« Last post by Bikemad on Today at 11:04:35 PM »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
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
