Wiring Methods and Power Supply Solutions
1. Wiring Methods
Bus servos can be wired as Daisy-chain, Parallel, or a hybrid of both based on physical layout and routing constraints, enabling cleaner and more practical cabling.
2. Power Supply Solutions
Considering per-servo power demand, long-distance wiring voltage drop, and data-cable current limits, the following power schemes are recommended. They help ensure stable power delivery and optimize overall power distribution.
2.1 Standard Routing Scheme
Use the UC01 adapter board for both signal conversion and power distribution.
- Advantages: simple wiring and easy Daisy-chain deployment.
- Limitations: each adapter board supports about 20 A maximum current. Plan the number of servos per board according to stall current for each model. Use multiple boards if needed.
For example, if a 25 kg servo has a 3 A maximum stall current, it is recommended to connect no more than 6 servos per adapter board.
2.2 Independent Power Routing Scheme
In this scheme, the adapter board is used only for signal processing (half-duplex to full-duplex). One adapter board is typically enough, while power lines are routed directly to the servos.
- Power Daisy-chain
The number of units in chain depends on line loss and connector voltage drop.
- Power Parallel
For systems with many servos, to reduce voltage drop caused by long wiring, avoid daisy-chaining power. Route the main power line separately and connect power in parallel to each servo.
