Kelly Ebike Brushless DC Motor Controller User
’s Manual
V 3.3
Page 3
Chapter 2 Main Features and Specifications
2.1 General functions
(1) Extended fault detection and protection. LED flashing code indicates fault sources.
(2) Monitoring battery voltage. It will stop driving if battery voltage is too high. It will cut back
then stop driving if voltage is going too low.
(3) Built-in current loop and over current protection.
(4) Motor temperature input and protection. Configurable range.
(5) Cutting back current at low temperature and high temperature to protect battery and
controller. The current will ramp down quickly if controller temperature is higher than 90
ﹾ
Ｃ
,
and shut down at 100
ﹾ
Ｃ
. Low temperature current ramping down usually starts at 0
ﹾ
Ｃ
.
(6) The controller keeps monitoring voltage during regen. It will cut back current or stop regen if
voltage is too high.
(7) Configurable to limit max reverse speed to half of max forward speed
(8) Configurable and programmable with RS-232. Software upgradeable. Windows GUI
provided.
(9) Provide power supply (5V) for hall sensors and other sensors.
(10) 3 switch inputs: Default to throttle switch, brake switch and reversing switch. Closing to
ground is to activate.
(11) 3 analog inputs, 0-5V: Default to throttle input, brake input and motor temperature input.
(12) Configurable boost switch. Output can arrive at the maximum current if the switch is
enabled and turned on.
(13) Configurable turbo switch. Limit max power to half if the switch is enabled and turned on.
(14) Configurable max reverse power to half.
(15) Enhanced regen brake function. Novel ABS technique provides powerful and smooth
regen.
(16) Configurable 12V brake signal input, instead of motor temperature sensor.
(17) Optional joystick throttle. Single 0-5V signal for both forwarding and reversing.
(18) Thermal overload detection and protection to safeguard the motor from over temperature
(designed using Silicon temperature sensors KTY83-122).
(19) 3 hall position sensor inputs. Open collector, pull up provided.
(20) Optional supply voltage 8V-30V.
Caution!
Regeneration has braking effect, but can't replace mechanical brake. Mechanical
brake is requir
ed to stop your vehicle. Regen isn’t a safety feature! Controller may stop regen to
protect itself (not you!).
