4
S1:
In Analog interface mode, it is the M1 analog voltage input
In PPM interface mode, it is the M1 PWM signal input
In UART interface mode, it is the drive “Rx”
S2:
In Analog interface mode, it is the M2 analog voltage input
In PPM interface mode, it is the M2 input signal pulse width
In UART interface mode, it is the drive “Tx”
1
.
5 Radiator Fan Interface
Radiator fan has 2 port, they are 5V power output pin and controllable GND.
Cooling fan can be directly connected to 5V (max current 500mA).
1.6 Indicator Leds
Reverse: Reverse power protection indicator led (red)
Set: Set pattern indicator led (green)
Analog: Analog mode indicator led (green)
PPM: PWM mode indicator led (green)
UART: UART mode indicator led (green)
Status1: (yellow)
In PPM and Analog mode, the brightness of the indicator led indicates the speed of M1
In UART mode, when the drive receives data, it will be ON, vice versa.
Status2: (yellow)
In PPM and Analog mode, the brightness of the indicator led indicates the speed of M2
In UART mode, when the drive receives data, it will be ON, vice versa.
Error: Fault indicator led (red)
1.7 KEY --Set Working Mode
You could change its working mode via pressing the key button: “Set, Analog, PPM, UART (four
modes). Please check the corresponding indicator LED. It will be reset to default mode, only when
current mode doesn’t match with the internal saved mode.
1.8 Interface Type
Analog (two-channel analog voltage signal input): voltage range 0-5V (usually connected with an
external potentiometer, if possible , it is recommended that user could add a voltage follower at the
analog voltage output ; or use the PWM+ filter circuit for voltage output).
PPM (two-channel PWM signal input): the control signal source can be directly generated by a
