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YS-S4 Multi-rotor Autopilot User Manual V1.4
5.
Connections
5.1
Assembly
IMPORTANT
a.
Ensure the original factory supplied power module is used. The manufacturer holds no responsibility if the
S4 is burnt out by using any other power module.
b.
The Power supply module and the WI‐FI module must connect to a 3S‐6S LIPO battery. The voltage range
would therefore be 10.8V‐25.5V. Normally this would be your main flight battery.
c.
The RC receiver (PPM supported) is powered directly from the MC. DO NOT power the receiver with any
additional module or the YS‐S4 unit may be burnt out.
d.
Motors and ESCs (Especially when several ESCs are together), can cause serious magnetic interference so
the GPS module must be as far away from these as possible. A non‐ferric bracket must be used with the arrow on
the GPS facing forward. Also the battery connection carries a high current and may result in a strong magnetic
field. Keep the battery wires as far away as possible from the GPS module otherwise your aircraft may fly in
circles!
e.
If using a servo gimbal, make sure the SERVOs are powered separately.
f.
WHITE core wire is always the signal line, the RED core wire is positive; the BLACK core wire is ground (0v).
7
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