Data Sheet

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ROBOT.HEADtoTOE
ProductUser’sManual–MDS40B
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7.SAFETYFEATURES
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Enhanced SmartDrive40 incorporates some safety features which make it robust and reliable           
motordriver.Belowarethedetaileddescriptionsforeachfeature.
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a. InputError(ErrorLEDblinks2times)
Every time Enhanced SmartDrive40 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.
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b. UnderVoltageWarning(ErrorLEDblinks3times)
Upon power on, Enhanced SmartDrive40 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.
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c. OverVoltageProtection(ErrorLEDblinks4times)
Ifovervoltageisdetected(>45V),EnhancedSmartDrive40willnotoperate.
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d. OverTemperatureProtection(ErrorLEDblinks5times)
Enhanced SmartDrive40 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:
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TemperatureRange(
o
C)
Current(A)
<50
80
50–70
50
70–100
45
100–110
40
>110
35
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Note:MDS40Bdoesnotcomewithpolarityprotection,pleasedoublecheckthe
connectionbeforepoweringup.
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CreatedbyCytronTechnologiesSdn.Bhd.–AllRightsReserved 11
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