Cytron Technologies MD13S - Page 6

ROBOT . HEAD to TOE
Product User’s Manual – MD13S
1. Terminal Block – Connect to motor and power source.
Pin No.
Pin Name
Description
1
POWER +
Positive Supply (6V to 30V)
2
POWER -
Negative Supply
3
Motor Output A
Connect to motor terminal A
4
Motor Output B
Connect to motor terminal B
2. MA LED Indicator – Turns on when the output A is high and output B is low. Indicates the
current flows from output A to B.
3. MB LED Indicator – Turns on when the output A is low and output B is high. Indicates the
current flows from output B to A.
4. MA Test Switch – When this button is pressed, current flows from output A to B and
motor will turn CW (or CCW depending on the connection).
5. MB Test Switch – When this button is pressed, current flows from output B to A and
motor will turn CCW (or CW depending on the connection).
6. Input
Pin No.
Pin Name
Description
1
GND
Logic ground.
2
**PWM
PWM input for speed control
3
DIR
Direction control.
**Note that it is not for RC PWM operation
The truth table for the control logic is as follow:
Pin 2 (PWM)
Pin 3 (DIR)
Output A
Output B
Low
X (Don’t care)
Low
Low
High
Low
High
Low
High
High
Low
High
7. Power LED Indicator – Power LED. Should be on when the board is powered on.
8. OC (Over Current)LED Indicator, Output current is over 30A limit.
9. ERR LED Indicator - Error LED Indicator
10. SMD compatible
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