Brushless Electric Belt-Sander Overload and Overheat Protections
7
(1) 2-Step Overload Protection
a) The LED indicator will turn from a flashing green light into a flashing red light whenever the PCB detects a
power overload.
b) The tool will stop automatically within approximately 5 seconds to prevent long-term overloading damage.
The LED indicator will flash red until the tool stops.
c) Release the lever and push again to restart the Belt-Sander. The LED indicator will turn from a flashing red
light back into a flashing green light.
(2) Motor Overheat Protection
a) The Belt-Sander detects for 2 temperature points (T1&T2) to initiate the overheat protection system. T2 is the
higher temperature.
b) When the motor temperature rises to T1, the tool speed may drop with heavy sustained usage, but may not
affect the speed with lighter usage. At T1, the LED indicator will flash red 3 times periodically. The Belt-Sander
can resume operation once it has fully cooled down and the LED indicator has turned back to a flashing green
light.
c) If not given an opportunity to cool down when motor temperate has reached T1, the temperature of the motor
will reach T2. The tool will automatically shut down automatically with 3 beeping sounds; the LED indicator will
also flash red 3 times periodically. Wait until the motor has completely cooled down and the LED indicator has
turned back to a flashing green light. During the cooling period, the user will hear 3 beeping sounds when
pressing down the lever. This shows that the tool is still under Overheat Protection mode.
(3) PCB Heat Protection
When the PCB reaches the protection point, the tool will stop automatically with 5 beeping sounds; the LED
indicator will turn into a flashing red light. The LED indicator will keep flashing red until the PCB has fully cooled
down. Once the PCB has fully cooled, it will turn back into a flashing green light. The tool can then resume
operation by pressing the lever again.
Overload
Stop
5sec
Flash Green Light
Flash Red Light
Restart
Flash Green Light
Normal use
Flash Green Light
Protection Point
Stop Point
Normal use
T1
T2
Cool Down
Cool Down
( 3 Flash Red Light )
*
3 Flash Red Light
* Speed drop
with heavy usage
Revision : 2018-08
B-E1BS01-AV-8
3 beeping sounds
