User Manual

EN
4
Spektrum Firma ESCs
Wiring Diagram
Motor Leads**
**Some Firma ESCs feature female bullet
connectors directly on the ESC case
Battery Leads
Steering
Servo*
Throttle
Connection
Receiver *
Motor*
Battery*
Cooling Fan
Programming Port
LED Indicators
Switch Board
Set Button
On/Off Button
* Not Included
Throttle Signal
Smart Throttle:
The Spektrum Firma
™
ESC is compatible with Smart Throttle . Smart Throttle
combines throttle signals with telemetry data from the ESC on one normal three wire
servo connector. Smart Throttle compatible receivers will detect a Smart Throttle
ESC and automatically begin to send telemetry information to your transmitter.
Using the Smart Throttle connection this ESC can send voltage, current, and
other telemetry data. It can also pass along battery data from compatible
Spektrum Smart batteries. A Spektrum Smart battery with IC3
™
or IC5
™
connector is
required for battery data. EC3
™
connectors are compatible for basic operation, but will
not provide Smart battery data.
Only certain Spektrum telemetry receivers include Smart Throttle , check your
receiver manual for more information. If the ESC is not connected to a Smart
Throttle compatible receiver no telemetry data from the ESC will be available,
but the ESC will operate normally with a common servo signal (PWM).
Motor*
Water Outlet
For Marine ESCs use large silicone fuel
tubing for water cooling. Water should
fl ow through the ESC fi rst, then the
motor, and fi nally to the water outlet.
Water Inlet
Water Cooling For Marine Versions