Kelly KDH72101E User manual

Kelly KDHE High Efficient Series/PM Motor Controller User’s Manual V 3.4
Kelly KDHE High Efficient Series/PM
Motor Controller User’s Manual
KDH72101E
KDH72121E
KDH12401E
KDH12601E
KDH12801E
KDH12101E
KDH12121E
KDH14401E
KDH14601E
KDH14801E
Rev.3.4
Mar. 2021

Kelly KDHE High Efficient Series/PM Motor Controller User’s Manual V 3.4
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Contents
Chapter 1 Introduction.................................................................................... 2
1.1 Overview................................................................................................. 2
Chapter 2 Main Features and Specifications............................................. 3
2.1 General functions.................................................................................. 3
2.2 Features..................................................................................................3
2.3 Specifications.........................................................................................4
Chapter 3 Wiring and Installation.................................................................... 5
3.1 Mounting the Controller........................................................................5
3.2 Connections........................................................................................... 7
3.3 Installation Checklist...........................................................................14
Chapter 4 Maintenance................................................................................14
4.1 Cleaning................................................................................................15
4.2 Configuration....................................................................................... 15
Table 1: LED CODES...................................................................................... 16
Table 2: Kelly KDHE Controller CAN Commands List...............................19
Contact Us:........................................................................................................23

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Chapter 1 Introduction
1.1 Overview
This manual introduces the Kelly KDHE High Efficient motor controllers’ features, their
installation and their maintenance. Read the manual carefully and thoroughly before using the
controller. If you have any questions, please contact the support center of Kelly Controls.
Kelly’s programmable motor controllers provide efficient, smooth and quiet controls for
electric vehicles like golf carts, go-carts, electric motorcycles, forklifts and hybrid vehicles, as
well as electric boats and industrial motor speed control. It uses high power MOSFET’s and,
fast PWM to achieve efficiencies of up to 99% in most cases. A powerful microprocessor brings
in comprehensive and precise control to the controllers. It also allows users to adjust
parameters, conduct tests, and obtain diagnostic information quickly and easily.

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Chapter 2 Main Features and Specifications
2.1 General 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Ｃcase temperature, shutting down at 100Ｃ.
(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 KTY84-130.Optional CAN bus.Optional CAN bus.
(16) Supply voltage 8V-30V.
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 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.

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•Low EMC.
•LED fault code.
•Voltage monitoring on voltage source 12V and 5V.
•Hardware over current protection.
•Hardware over voltage protection.
•Support torque mode, speed mode, and balanced mode operation.
•Configurable limit for motor current.
•Battery protection: current cutback, warning and shutdown at configurable high and low
battery voltage.
• Rugged aluminum housing for maximum heat dissipation and harsh environment. Support fan
or water cooling.
•Rugged high current terminals, and rugged aviation connectors for small signal.
•Thermal protection: current cut back, warning and shutdown at high temperature.
•Configurable high pedal protection: the controller will not work if high throttle is detected at
power on.
•Brake switch is used to start regen.
•0-5V brake signal is used to command regen current.
•Easy installation: 1-4V "Hall Active" throttle or "3 Wire" potentiometer(<100K) can work.
•Standard PC/Laptop computer is used to do programming. No special tools needed.
•User program provided. Easy to use. No cost to customers.
2.3 Specifications
•Frequency of Operation: 16.6kHz.
•Standby Battery Current depending on the model: usually less than 2mA.
•Controller supply voltage range, PWR, 8 to 30V(24V is preferred).
•Controller input power, PWR: less than 10W.
•Configurable battery voltage range, B+. Max operating range: 18V-90V for 72V controllers;
18V-136V for 120V controllers;18V to 180V for 144V controllers.
•Standard Throttle Input: 0-5 Volts(3-wire resistive pot), 1-4 Volts(hall active throttle).
•Analog Brake and Throttle Input: 0-5 Volts. Producing 0-5V signal with 3-wire pot.
•Reverse Alarm, Main Contactor Coil Driver, Meter.
•Full Power Temperature Range: 0℃to 50℃(controller case temperature).
•Operating Temperature Range: -30℃to 90℃,100℃shutdown (controller case temperature).
•Motor Current Limit,1 minutes: 400A - 1200A, depending on the model.
•Motor Current Limit, continuous:180A - 540A, depending on the model.

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Chapter 3 Wiring and Installation
3.1 Mounting the Controller
The controller can be oriented in any position which should be as clean and dry as possible,
and if necessary, shielded with a cover to protect it from water and contaminants.
To ensure full rated output power, the controller should be fastened to a clean, flat metal
surface with four or six screws. Applying silicon grease or some other thermal conductive
material to contact surface will enhance thermal performance.
Proper heat sinking and airflow are vital to achieve the full power capability of the
controller.
The case outline and mounting holes’ dimensions are shown in Figure 1 and 2.
Caution:
• RUNAWAYS —Some conditions could cause the vehicle to run out of control.
Disconnect the motor, or jack up the vehicle, and get the drive wheels off the
ground before attempting any work on the motor control circuitry.
• HIGH CURRENT ARCS —Electric vehicle batteries can supply very high power, and
arcs can occur if they are short circuit. Always turn off the battery circuit before
working on the motor control circuit. Wear safety glasses, and use properly
insulated tools to prevent short.

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Figure 1: Height: 84 millimeters
Length: 204 millimeters
Controller models with above dimension: KDH72101E,KDH72121E,KDH12401E,
KDH12601E,KDH12801E,KDH12101E,
KDH12121E, KDH14401E,KDH14601E,KDH14801E

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3.2 Connections
3.2.1 Panel of KDHE Motor Controller:
Three metal bars and two plugs (J1, J2) are provided for connecting to the battery, motor
and control signals shown as Figure 3 and Figure 4.
Figure 3: Front panel of KDHE motor controller
B+: battery positive and armature positive
B-: battery negative
M-: armature negative
Figure 4: Back panel of KDHE motor controller

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Figure 5: The connecting diagram of J1 and J2
J1 Pin Definition
1- PWR: Controller power supply (output).
2- Current meter. <200mA
3- Main contactor driver. <2A
4- Alarm: To drive reverse beeper, <200mA.
5- GND: Signal return
6- Green LED: Running indication
7- GND: Signal return
8- Reserved
9- Reserved
10- CAN bus high. Optional
11- CAN bus low. Optional
12- Reserved
13- GND: Signal return, or power supply ground
14- Red LED: Fault code.
J2 Pin Definition
1- PWR: Controller power supply (input)
2- GND: Signal return, or power supply ground
3- GND: Signal return
4- Motor temperature input.
5- Throttle analog input, 0-5V
6- Brake analog input, 0-5V
7- 5V: 5V supply output. <50mA
8- Micro_SW: Throttle switch input
9- Reversing switch input
10- Brake switch input
11- Reserved
12- Reserved

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13- Reserved
14- GND: Signal return
Notes:
1. All RTN and GND pins are internally connected.
2. Two PWR pins, J1-1 and J2-1, are internally connected. It’s recommended to use J1-1
to supply peripherals like alarm and contactor. Twist peripheral wires with PWR is the
preferred for EMC.
3. Kelly Ammeter positive connect to 5V power supply of controller, negative to J1-2.
4. Switch to ground is active. Open switch is inactive.
Caution:
•Do not apply power until you are certain the controller wiring is correct and has been
double checked. Wiring faults will damage the controller.
•Ensure that the B- wiring is securely and properly connected before applying power.
•The preferred connection of the system contactor or circuit breaker is in series with the B+
line.
•All contactors or circuit breakers in the B+ line must have precharge resistors across their
contacts. Lack of even one of these precharge resistors may severely damage the controller
at switch-on.

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3.2.2 Standard Wiring of KDHE Motor Controller
Figure 6: KDHE Series motor controller standard wiring

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Figure 7: KDHE Series motor controller standard wiring without Reversing Contactor

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Figure 8: KDHE PM motor controller standard wiring

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Figure 9: KDHE PM motor controller standard wiring without Reversing Contactor

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3.2.3 Communication Port
Figure 10: standard RS232 interface
3.3 Installation Checklist
Before operating the vehicle, complete the following checkout procedures. Use LED code
as a reference as listed in Table 1.
Caution:
•Put the vehicle up on blocks to get the drive wheels off the ground before beginning these
tests.
•Do not allow anyone to stand directly in front of or behind the vehicle during the checkout.
•Make sure the PWR switch and the brake is off
•Use well-insulated tools.
•Make sure the wiring is connected correctly
•Turn on the PWR switch, the Red flashes once and the Green is off. After the start-up delay,
normally the Red will stay off and the Green will turn on. If there is error, the Red LED will
flashes for fault codes.
If the S/N less: 11xxxxxx: Turn on the PWR switch, the Red flashes once and the Green is
on. Normally, the Red will stay off. If there is error, the Red LED will flashes for fault codes.
•The fault code will be detected automatically at restart.
•With the brake switch open, select a direction and operate the throttle. The motor should
spin in the selected direction. Verify wiring or voltage and the fuse if it does not. The motor
should run faster with increasing throttle. If not, refer to the Table 1 LED code, and correct
the fault as determined by the fault code.
•Take the vehicle off the blocks and drive it in a clear area. It should have smooth
acceleration and good top speed.

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Chapter 4 Maintenance
There are no user-serviceable parts inside the controllers. Do not attempt to open the
controller as this will void your warranty. However, periodic, exterior cleaning of the controller
should be carried out.
The controller is a high powered device. When working with any battery powered vehicle,
proper safety precautions should be taken that include, but are not limited to, proper training,
wearing eye protection, avoidance of loose clothing, hair and jewelry. Always use insulated
tools.
4.1 Cleaning
Although the controller requires virtually no maintenance after properly installation, the
following minor maintenance is recommended in certain applications.
•Remove power by disconnecting the battery.
•Discharge the capacitors in the controller by connecting a load (such as a contactor coil or a
horn) across the controller’s B+ and B- terminals.
•Remove any dirt or corrosion from the bus bar area. The controller should be wiped down
with a moist rag. Make sure that the controller is dry before reconnecting the battery.
•Make sure the connections to the bus bars, if fitted, are tight. To avoid physically stressing
the bus bars use two, well-insulated wrenches.
4.2 Configuration
You can configure the controller with a host computer either an through RS232.
Disconnect motor wiring from controller.
Do not connect B+, throttle and so on. The controller may display fault code in some
conditions, but it doesn't affect programming or configuration.
Use a straight through RS232 cable or Kelly USB To RS232 Converter to connect to a host
computer. Provide 10V-30V (either J2 pin1 or J1 pin1) to PWR. Wire power supply return to
any RTN pin, isolated from B-.
Download the free configuration software from：
http://www.kellycontroller.com/support.php
Caution:
•Make certain that the motor is disconnected before trying to run the Configuration
Software!
•Configuration software will be regularly updated and published on the website. Please
Update your Configuration Software regularly. You must uninstall the older version
before updating.

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Table 1: LED CODES
Green LED Code
LED Code Explanation Solution
Green Off No power or
switched off
1. Check if all wires are correct.
2. Check fuse and power supply.
Green On Normal operation That’s great! You got solution!
Green & Red are
both On
1. Software still upgrading.
2. Supply voltage too low or battery too high
3. The controller is damaged. Contact Kelly about a
warranty repair.
Red LED Code
LED Code Explanation Solution
1,2 ¤ ¤¤ Over voltage error 1. Battery voltage is too high for the controller.
Check battery volts and configuration.
2. Regeneration over-voltage. Controller will have
cut back or stopped regen.
3. This only accurate to ±2% upon Overvoltage
setting.
1,3 ¤ ¤¤¤ Low voltage error 1. The controller will clear after 5 seconds if
battery volts returns to normal.
2. Check battery volts & recharge if required.
1,4 ¤ ¤¤¤¤ Over temperature
warning
1. Controller case temperature is above 90℃.
Current will be limited. Reduce controller
loading or switch Off until controller cools
down.
2. Clean or improve heatsink or fan.
2,2 ¤¤ ¤¤ Internal voltage
fault
1. Measure that B+ & PWR are correct when
measured to B- or RTN.
2. There may be excessive load on the +5V
supply caused by too low a value of Regen or
throttle potentiometers or incorrect wiring.
3. Controller is damaged. Contact Kelly about a
warranty repair.
2,3 ¤¤ ¤¤¤ Over temperature The controller temperature has exceeded 100 ℃.
The controller will be stopped but will restart when
temperature falls below 80℃.
2,4 ¤¤ ¤¤¤¤ Throttle error at
power-up
1. Throttle signal is higher than the preset ‘dead
zone’ at Power On. Fault clears when throttle is

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released
2. Set throttle model as "Hall Active" throttle in
GUI if you use that throttle model.
3,1 ¤¤¤ ¤ Frequent reset May be caused by over-voltage, bad motor
intermittent earthing problem, bad wiring, etc.
3,2 ¤¤¤ ¤¤ Internal reset May be caused by some transient fault condition
like a temporary over-current, momentarily high or
low battery voltage. This can happen during normal
operation.
3,3 ¤¤¤ ¤¤¤ Hall throttle is
open or
short-circuit
When the throttle is repaired, a restart will clear the
fault.
3,4 ¤¤¤ ¤¤¤¤ Non-zero throttle
on direction
change
Controller won’t allow a direction change unless the
throttle or speed is at zero. Fault clears when
throttle is released.
4,1 ¤¤¤¤ ¤ Regen or Start-up
over-voltage
Motor drive is disabled if an over-voltage is
detected at start-up or during regen. The voltage
threshold detection level is set during configuration.
The max threshold is about 1.25 times of controller
rated voltage. I.e. you may set threshold lower than
60V for 48V controller.
4, 3 ¤¤¤¤ ¤¤¤ Motor
over-temperature
Motor temperature has exceeded the configured
maximum. The controller will shut down until the
motor temperature cools down.
The Red LED flashes once at power on as a confidence check and then normally
stays Off. “1, 2” means the Red flashes once and after a second pause, flashes twice.
The time between two flashes is 0.5 second. The pause time between multiple flash code
groups is two seconds.

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Table 2: Kelly KDHE Controller CAN Commands List
Version 1.1
You should specify when sending:
ID:Our default ID is 0x6B, so only the data frame with ID 107 can be received by our controller.
However, it can be set by configuration program.
Frame type:data frame
Frame format:standard 11 bits ID
Length:the number of data field bytes
Data field:data[0] is the command which indicates the operation.
Controller response:
ID:The controller sends data frames with ID 115, 0x73. It also can be set by configuration program.
Frame type:data frame
Length:the number of data field bytes
Data field:The controller sends one or two data frames in response.
Commands definitions
Command CCP_FLASH_READ
Length 3
data[0] 0xF2
data[1] INFO_MODULE_NAME
data[2] 8
Controller response
Length 8
data[0]~data[7] Controller’s model in ASCII format, 8 bytes.
Description: Getting controller’s model no. E.g. 0x4B,0x42,0x4C is 'K' , 'B', 'L', 0x30 is '0' .
INFO_MODULE_NAME constant is defined as 64.
Command CCP_FLASH_READ
Length 3
data[0] 0xF2
data[1] INFO_SOFTWARE_VER
data[2] 2
Controller response
Length 2
data[0]~data[1] software version in BCD alike format, two bytes.
Description: Getting controller’s software version, it also define as the controller’s version, BCD
alike format storage. E.g. 0x0A,0x01 should be parsed to ASCII characters ‘0’ ‘A’ ‘0’ ‘1’ as the software
version. INFO_SOFTWARE_VER constant is defined as 83.
Command CCP_FLASH_READ
Length 3
data[0] 0xF2
data[1] CAL_TPS_DEAD_ZONE_LOW
data[2] 1
Controller response
Length 1
data[0] TPS_Dead_Zone_Low
Desccription: Getting controller’s Throttle low-end dead zone. CAL_TPS_DEAD_ZONE_LOW
constant is defined as 4.

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Command CCP_FLASH_READ
Length 3
data[0] 0xF2
data[1] CAL_BRAKE_DEAD_ZONE_LOW
data[2] 1
Controller response
Length 1
data[0] Brake_Dead_Zone_Low
Desccription: Getting controller’s Brake low-end dead zone. CAL_BRAKE_DEAD_ZONE_LOW
constant is defined as 5.
Command CCP_FLASH_READ
Length 3
data[0] 0xF2
data[1] CAL_TPS_DEAD_ZONE_HIGH
data[2] 1
Controller response
Length 1
data[0] TPS_Dead_Zone_High
Desccription: Getting controller’s Throttle high-end dead zone. CAL_TPS_DEAD_ZONE_HIGH
constant is defined as 38.
Command CCP_FLASH_READ
Length 3
data[0] 0xF2
data[1] CAL_BRAKE_DEAD_ZONE_HIGH
data[2] 1
Controller response
Length 1
data[0] Brake_Dead_Zone_High
Desccription: Getting controller’s Brake high-end dead zone. CAL_BRAKE_DEAD_ZONE_HIGH
constant is defined as 39.
Command CCP_A2D_BATCH_READ1
Length 1
data[0] 0x1b
Controller response
Length 5
data[0] Brake A/D
data[1] TPS A/D
data[2] Operation voltage A/D
data[3] Vs A/D
data[4] B+ A/D
Description: Data batch reading.
1) For operation voltage, B+, A/D value and voltage mapping relation is:
V = Vad / 1.39. (For 144V controller).
2) Vs is defined as the 5V power supply for Hall sensor, control panel,ect. A/D value
and voltage mapping relation is:120 ~ 134 mapping to 4.75 ~ 5.25V.
3) Brake and TPS are defined as the Brake and the Throttle analog input. A/D value
and voltage mapping relation is: 0 ~ 255 mapping to 0 ~ 5V.
Command CCP_A2D_BATCH_READ2
Length 1
data[0] 0x1a
Controller response
Length 3