Kelly
Kelly
Kelly
Kelly KDH
KDH
KDH
KDHE
E
E
E High
High
High
High Efficient
Efficient
Efficient
Efficient Series/PM
Series/PM
Series/PM
Series/PM Motor
Motor
Motor
Motor Controller
Controller
Controller
Controller User
User
User
User’’’’s
s
s
s Manual
Manual
Manual
Manual
V
V
V
V 3.3
3.3
3.3
3.3
Page 3
Chapter
Chapter
Chapter
Chapter 2
2
2
2
Main
Main
Main
Main Features
Features
Features
Features and
and
and
and Specifications
Specifications
Specifications
Specifications
2.1
2.1
2.1
2.1 General
General
General
General functions
functions
functions
functions
(1) Extended fault detection and protection. The LED flashing pattern indicates the fault sources,
and Green LED indicates normal operation. Controller will shut down in some fault
conditions.
(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
ﹾＣcase temperature
, shutting down at 100
ﹾＣ
.
(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 the maximum 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 0-5V inputs that default to throttle input, brake input and motor temperature input.
(12) Pulsed reverse alarm output.
(13) Main contactor driver. Cutting off the power if any fault is detected.
(14) Maximum reverse power is configurable to half power.
(15) Configurable motor over-temperature detection and protection with the recommended
thermistor KTY83-122. Optional CAN bus.Optional CAN bus.
(16) Supply voltage 8V-30V.
Caution!
Caution!
Caution!
Caution!
Regeneration has braking effect but does not replace the function of a mechanical
brake. A mechanical brake is required to stop your vehicle. Regen IS NOT a safety feature!
Controller may stop regen, without warning, to protect itself or the battery(it won’t protect you!).
2.2
2.2
2.2
2.2 Features
Features
Features
Features
•Opto-isolated technology achieve stability.
•Intelligence with powerful microprocessor.
•Synchronous rectification, ultra low drop, and fast PWM to achieve very high efficiency.
•Current limit and torque control.
•Low EMC.
•LED fault code.
