User Plug-panel

• Cable of plug-panel will terminate with mating plug with socket contacts.
• GND: Pins 9 and 12 are intended to allow a negative for accessories, but may also share GND at pin 2 if current draw is 2. If accessory current draw is significant, they should utilize separate grounds to avoid ground-voltage variation. Negatives for motors use separate current return paths, and should always have their own return wires.
• Colors: It is intended that either (but not both) motor or accessories will be connected, but not both.
• Motors: Motors are provided a +5V PWM. Maximum sustained draw per motor is ~1A; drawing more than this may lead to the PWM controller entering thermal shutdown. Fuse at 2A.
• Accessories: Accessories receive +12V when switched on, which will typically occur for a few seconds at a time. Maximum combined draw ~300mA. Fused on board at 0.5A, but board draws some of this current for relays and LEDs.
• Accessory current may be increased by replacing the two appropriate PNP transistors with more current-capable ones, such as the SS8550, which can deliver 1.5A. Shared between the two users, then, each user can be with 12V at 750mA.

Consent Handle