Manual

ROBOT . HEAD to TOE
Product User’s Manual – MDDS10
7. SAFETY FEATURES
SmartDriveDuo-10 incorporates some safety features which make it robust and reliable motor
driver. Below are the detailed descriptions for each feature.
a. Input Error (Error LED blinks 2 times)
Every time SmartDriveDuo-10 is power up, the input data must be ‘stop’ (for RC,
Analog, PWM input mode). This feature prevent the driver from sudden run,
especially when the driver accidently reset.
b. Under Voltage Warning (Error LED blinks 3 times)
Upon power on, SmartDriveDuo-10 will automatically detect the number of cells for
the battery. If it is set to LiPo, when the input voltage falls below 3.0V per cell during
operation, the error LED will blink to warn the user. However, the power to the motor
will be maintained and will not be cut out. Thus, it is user’s responsibility to stop the
motor driving and replace battery to avoid further damage to the battery. If other types
of battery is used to power the board (e.g NiMH, NiCD, SLA), the under voltage
warning will still be shown. In this case, user may ignore the warning and he/she
needs to estimate when to replace the battery by him/herself.
c. Over Voltage Protection (Error LED blinks 4 times)
If over voltage is detected (> 35V), SmartDriveDuo-10 will not operate.
d. Over Temperature Protection (Error LED blinks 5 times)
SmartDriveDuo-10 is equipped with a temperature sensor to monitor its operating
temperature. It will gradually lower down the duty cycle percentage base on the
temperature as shown below:
Temperature Range (
o
C)
Duty Cycle (%)
< 50
100
50 – 55
90
55 – 60
80
60 – 65
70
65 – 70
60
70 – 80
50
80 – 85
40
85 – 90
30
90 – 95
20
95 – 100
10
100 – 105
5
> 105
0 (Shutdown)
e. Shutdown (Error LED blinks 6 times)
Shutdown will occur when SmartDriveDuo-10 temperature become too high
(temperature > 105
o
C). As a result, motor will stop automatically. The driver for
respective channel starts operate again when temperature decrease less than 70
o
C.
Note: MDDS10 does not come with polarity protection, please double check the
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