According to the datasheet:
Input 24-80VDC, output 0-5V, with mating connector
Waterproof Connector
Specifications:
- Model:
- RJSQ-001: with normal connector
- RJSQ-001XW: with waterproof connector
- Input voltage (volt): 24-80V DC, wide working voltage range
- Signal output: 0-5V
- Maximum throttle output: 5.0V
- Minimum throttle output: 0V
- Could be installed at both ends of throttle rotation shaft (suggested installation position: right side of the throttle rotation shaft)
- Solid ZAMAC alloy case, ingress protection: IP55
- Installation kit is included: bolts, nuts and washes
- Mating connector is included
- Net weight: 1.05 kg (with installation kit and mating connector)
The RJSQ-001 electric throttle provides an analog 0-5V output proportional to throttle position for interfacing with CURTIS PMC motor speed controllers.
So you want to connect the brown wire to the switched battery + (ignition wire) on the controller, and black to battery negative.
This will give you a zero to 5v output on the signal wire. This is not a normal hall throttle signal range, so you may need to tweak something in the controller programming to allow this. I don't know if the Fardriver has this option. Most Hall throttles output about 1 - 4v. Don't use the blue wire.