Hobbywing EZRUN-150A-PRO - Manual (Page 4)

User Manual of EZRUN-150A-PRO Brushless ESC HW-SM405ENG-20120630 Page - 3 -
Alert Tones
1. Input voltage abnormal alert tone: The ESC begins to check the input voltage when power on, if the voltage is
out of the normal range, such an alert tone will be emitted: “beep-beep-, beep-beep-, beep-beep-” (There is 1
second interval between every “beep-beep-” tone).
2. Throttle signal abnormal alert tone : When the ESC can’t detect the normal throttle signal, such an alert tone will
be emitted: “beep-, beep-, beep-” (There is 2 seconds interval between every “beep-” tone).
Trouble Shooting
Trouble Possible Reason Solution
After power on, motor doesn’t work,
and the cooling fan doesn
’t work
The connections between
battery pack and ESC are not
correct
Check the power connections
Replace the connectors
After power on, motor can’t work,
but emits “beep-beep-, beep-beep-”
alert tone. (Every “beep-beep-” has
a time interval of 1 second ) Input voltage is abnormal, too
high or too low
Check the voltage of the battery pack
After power on, red LED always
lights, the motor doesn
’t work
Throttle signal is abnormal Plug the control wire into the throttle
channel of the receiver correctly.
The motor runs in the opposite
direction when it is accelerated 1)The wire connections between
ESC and the motor are not
correct
2)The chassis is different from
the popular design Method #1: Swap any two wire
connections between the ESC and the
motor
Method #2: Change the
“Motor Rotation”
programmable item to “CW(Clockwise)”
The motor suddenly stops running
while in working state The throttle signal is lost Check the transmitter and the receiver
Check the signal wire from the throttle
channel of your receiver
The ESC has entered the Low
Voltage Protection Mode or
Over-heat Protection Mode Red LED flashes means Low Voltage
Green LED flashes means Over-heat
When accelerating quickly, the
motor stops or trembles 1) The battery has a bad
discharge performance
2) The gear rate is too small
3) The
“Start Mode (Punch)” of
the ESC is too aggressive
1) Use a better battery
2) Use lower KV motor or change the
gear rate
3) Set the
“Start Mode (Punch)” to a
softer value