Cytron Technologies SmartDriveDuo-30 User manual

SmartDriveDuo-30
MDDS30
User’s Manual
Rev 1.11
July 2019
Informaon contained in this publicaon regarding device applicaons and the like is intended through
suggeson only and may be superseded by updates. It is your responsibility to ensure that your applicaon
meets with your specificaons. No representaon or warranty is given and no liability is assumed by Cytron
Technologies Incorporated with respect to the accuracy or use of such informaon or infringement of
patents or other intellectual property rights arising from such use or otherwise. Use of Cytron Technologies’s
products as crical components in life support system is not authorized except with express wrien approval
by Cytron Technologies. No licenses are conveyed, implicitly or otherwise, under any intellectual property
rights.

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Product User’s Manual - MDDS30
INDEX
1. INTRODUCTION
2. PACKINGLIST
3. PRODUCTSPECIFICATIONS
4. BOARDLAYOUT
5. POWERSUPPLY
6. MOTORCONNECTION
7. SAFETYFEATURES
8. INPUTMODES
8.1. RC (Radio Control)
8.2. Microcontroller Analog/PWM
8.3. Serial Simpliied
8.4. Serial Packetized
9. WARRANTY
PAGES
2
3
4
6
8
9
10
11
13
15
17
19
21
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Product User’s Manual - MDDS30
1. INTRODUCTION
SmartDriveDuo-30 is one of the latest smart series motor drivers designed to drive medium
power brushed DC motor with current capacity up to 80A peak (few seconds) and 30A
connuously, each channel. This driver is designed specially for controlling differenal drive
mobile robot using RC controller. Nevertheless, MDDS30 also can be controlled using analog
joysck or microcontroller (PWM, Serial). MOSFETs are switched at 18 KHz to ensure quiet
operaon and no annoying whining sound. Besides, it also equipped with a microcontroller
unit to provide smart features such as mulple input mode and thermal protecon.
“SmartDriveDuo-30’s feature makes driving a robot with
differential drive a truly plug and play experience”
Some of the features for SmartDriveDuo-30 are summarized as below:
● Bi-direconal control for dual brushed DC motor.
● Support motor voltage from 7V to 35V.
● Maximum current up to 80A peak (1 second), 30A connuously, each channel.
● On board MOSFETs are switched at 18 KHz for quiet operaon.
● Baery low voltage indicator.
● Baery over voltage indicator.
● Thermal protecon.
● Current limit protecon.
● Mulple input modes: RC, Analog/PWM, Serial Simplified and Serial Packezed.
● On board push buons for fast test and manual operaon.
● NO POLARITY PROTECTION FOR V MOTOR.
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Product User’s Manual - MDDS30
2. PACKING LIST
Please check the parts and components according to the packing list. If there are any parts
missing, please contact us at [email protected] immediately.
No
ITEMS
QUANTITY
1
SmartDriveDuo-30 (Code: MDDS30 )
1
2
Grove 4 Pin Buckled 20cm Cable (Code: WR-EX-GROVE )
2
3
2561 3 Ways Connector Extension Wire (Code: WR-EX-2561-03 )
2
Oponal External Fan (Not included):
No
ITEMS
QUANTITY
1
DC5V Brushless Fan 40 x 40 x 20mm (Code: FAN-05-040040020 )
1
2
PCB Stand (Screw & Screw) 30mm (Code: SD-SS-30 )
4
3
Bolt M3 x 25mm (Code: HD-PM-M3-25 )
4
4
M3 Nut (Code: HD-PM-M3-NUT )
4
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Product User’s Manual - MDDS30
3. PRODUCT SPECIFICATIONS
Dimension (unit in mm):
● MDDS30 main board.
● MDDS30 height.
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Product User’s Manual - MDDS30
MDDS30 boom cover:
Absolute Maximum Rang of SmartDriveDuo-30:
No
PARAMETERS
Min
Typ
Max
Unit
1
Input Voltage (Motor Supply Voltage)
7
–
35
V
2
I
MAX (Max Connuous Motor Current) *
–
–
30
A
3
I
PEAK (Peak Motor Current) **
–
–
80
A
4
V
IOH (Logic Input – HIGH Level)
1.3
–
5
V
5
V
IOL (Logic Input – LOW Level)
0
–
0.7
V
* Depends on the room temperature.
**Must not exceed 1 second.
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4. BOARD LAYOUT
LABEL
FUNCTION
A
MOTOR RIGHT LED INDICATOR
Indicaon for current flow and direcon for motor RIGHT. If LED MRA turns on, means current
flows from output MRA to MRB. Vice versa.
B
MOTOR RIGHT TERMINAL BLOCK
Connect to motor RIGHT at your mobile robot. User can screw to lock the wire to the terminal
block. Please use wire with proper thickness to support the expected current.
C
POWER SUPPLY TERMINAL BLOCK
Connect to baery power source. User can screw to lock the wire to the terminal block. NO
POLARITY PROTECTION , please double check the connecon before power up. Please use wire
with proper thickness to support the expected current.
D
MOTOR LEFT TERMINAL BLOCK
Connect to motor LEFT at your mobile robot. User can screw to lock the wire to the terminal
block or solder the wire directly to the pad at the boom layer. Please use wire with proper
thickness to support the expected current.
E
MOTOR LEFT LED INDICATOR
Indicaon for current flow and direcon for motor LEFT. If LED MLA turns on, means current
flows from output MLA to MLB. Vice versa.
F
COOLING FAN CONNECTOR
Oponal cooling fan (not included) can be connected here and mounted at the boom PCB. Pin
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Product User’s Manual - MDDS30
arrangement from le to right are as follows: NC, +ve (5V), -ve. The fan will be automacally ON
when the board’s temperature exceeds 50°C.
G
HEAT SINK
This area might be hot, please be careful.
H
RIGHT CHANNEL LED INDICATOR
RUN - Turns on when motor RIGHT is running. If signal error received for motor RIGHT, it will
blink.
ERR - Blinks at specific count if there have an error.
OC - Light up if overcurrent happened.
I
LEFT CHANNEL LED INDICATOR
RUN - Turns on when motor LEFT is running. If signal error received for motor LEFT, it will blink.
ERR - Blinks at specific count if there have an error.
OC - Light up if overcurrent happened.
J
POWER LED INDICATOR
Indicaon for board’s power.
K
MOTOR LEFT TEST BUTTON
Fast test to check driver funconality for motor LEFT. If MLA is pressed, current flows from
output MLA to MLB. Vice Versa.
L
MOTOR RIGHT TEST BUTTON
Fast test to check driver funconality for motor RIGHT. If MRA is pressed, current flows from
output MRA to MRB. Vice Versa.
M
RC INPUT PIN
This pins specially for RC receiver input wire. RC1 for forward/reverse and RC2 for steering.
N
ANALOG/PWM INPUT PIN (GROVE)
AN1 - Analog/PWM signal for motor LEFT.
AN2 - Analog/PWM signal for motor RIGHT.
NC - Not Connected
O
DIGITAL/SERIAL INPUT PIN (GROVE)
IN1 - Digital signal (direcon) for motor LEFT, or can be used for Serial mode.
IN2 - Digital signal (direcon) for motor RIGHT.
NC - Not Connected
P
MODE SELECTION DIP SWITCH
User can select different input mode by seng the DIP switch.
Q
RESET BUTTON
Press this buon will restart the system. This is useful if you want to change mode without
recycle power (turn off and on).
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Product User’s Manual - MDDS30
5. POWER SUPPLY
SmartDriveDuo-30 supports baery with input voltage ranges from 7V to 35V. The
recommended power sources are:
● 6 – 18 cells NiMH or NiCd baery.
● 3 – 6 cells LiPo or Li-Ion baery.
● 7V – 35V sealed lead acid baery.
● 7V – 35V power supply. MUST BE IN PARALLEL WITH A BATTERY WITH SAME VOLTAGE
The power source can be connected to SmartDriveDuo-30 either via the terminal block, or
soldered directly to the pad at the boom layer. THERE IS NO POLARITY PROTECTION ON
MDDS30, PLEASE DOUBLE CHECK THE CONNECTION BEFORE CONNECTING TO THE
BATTERY.
NOTE
If a power supply that cannot sink current is being used (example: bench top and AC to DC
switching power supply), the input voltage will rise when the driver is regenerang (motor
is slowing down, or being pushed by external force). Thus, it is important to connect a
baery with same voltage in parallel with the power supply to absorb the current
generated by the motor. Else, the input voltage might rise to a level where
SmartDriveDuo-30 can’t handle and it will be destroyed permanently or the power supply
trigger protecon mode.
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Product User’s Manual - MDDS30
6. MOTOR CONNECTION
Similar to the power supply, connecon to the motor can be made either via the terminal
block, or it can be soldered directly to the boom layer pad.
For MIXED mode, especially for RC input mode , each terminal block must be connected to
the same side of the motor. For example, le terminal block connected to motor LEFT and
right terminal block connected to motor RIGHT. User can further test it by controlling the
motor by using RC controller. If the motor give wrong direcon, reverse the polarity of the
motor connecon at the terminal block.
WARNING!
IF YOU’RE DEVELOPING A MOBILE ROBOT, PLEASE TAKE NOTE ON THIS:
Pushing the robot without connecng the baeries to the driver is very risky and might
burn the motor driver. When the robot is being pushed, power will be generated by the
motor. If the baery is connected, the generated power will flow to the baery and charge
it. If the baery is not connected, the generated power has nowhere to go and the
voltage will rise. If the generated voltage is higher than what the motor driver can
handle, components may burn!
This condion is categorized under misuse, and
DAMAGED CAUSED BY MISUSE IS NOT COVERED UNDER WARRANTY
What you can do to move your robot from one place to another?
1. If you plan to push/pull the robot, please make sure the baeries is connected to the
motor driver* or
2. disconnect the motor from the motor driver.
3. Use trolley to carry your robot. (Recommended)
* You will feel difficult to push the robot, because the motor driver is in brake state.
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