Kelly Ebike Brushless DC Motor Controller User’s Manual
V 3.4
Page 3
Chapter 2 Main Features and Specifications
2.1 General functions
(1) Extended fault detection and protection. The LED flashing pattern indicates the fault
sources.
(2) Monitoring battery voltage. It will stop driving if the battery voltage is too high and it will
progressively cut back motor drive power as battery voltage drops until it cuts out altogether
at the preset “Low Battery Voltage” setting.
(3) Built-in current loop and over current protection.
(4) Configurable motor temperature protection range.
(5) Current cutback at low temperature and high temperature to protect battery and controller.
The current begins to ramp down at
90
℃
case temperature, shutting down at 100
℃
.
(6) The controller keeps monitoring battery recharging voltage during regenerative braking,
progressively cutting back current as battery voltage rises then cutting off regen altogether
when voltage goes too high.
(7) Maximum reverse speed is configurable to half of max forward speed.
(8) Configurable and programmable with a host computer though RS232 or USB. Provide free
GUI which can run on Windows XP/2000, Windows 7 and Vista(recommend using Kelly
standard USB to RS232 Converter).
(9) Provision of a +5 volt output to supply various kinds of sensors, including Hall effect type.
(10) 3 switch inputs which are activated by connection to Ground. Default to throttle switch,
brake switch and reversing switch.
(11) 3 analog inputs 0-5V inputs that default to throttle input, brake input and motor temperature
input.
(12) Configurable boost switch. Enables the maximum output power achievable if the switch is
turned on.
(13) Configurable economy switch. Limits the maximum current to half if the switch is turned
On.Boost and Economy used the same pin as J2-6(brake-AN).Needless to say,you may
not use J2-6(brake-AN) as brake analog regen mode if you want to use Boost or Economy
function.Boost or Economy can’t be enabled at the same time in the user program.
(14) Maximum reverse power is configurable to half power.
(15) Enhanced regen brake function. A novel ABS technique provides powerful and smooth
regen.
(16) Configurable 12V brake signal input, instead of motor temperature sensor.
(17) Optional joystick throttle. A bi-symmetrical 0-5V signal for both forwarding and reversing.
If software version is 0406 or above,joystick can can be enabled or disabled in the user
program now.
(18) Configurable motor over-temperature detection and protection with the recommended
thermistor KTY84-130 or KTY83-122.
(19) 3 hall position sensor inputs. Open collector, pull up provided.
(20) Optional supply voltage 8V-30V.
(21) Cruise control.Can not be activated in reversing direction.If software version is 0406
