User`s manual

ROBOT . HEAD to TOE
Product User’s Manual – SD02B
Created by Cytron Technologies Sdn. Bhd. – All Rights Reserved
5
3. PRODUCT SPECIFICATION AND LIMITATIONS
Signal Input Pins Function Description
Label Definition Function
Vmotor
Motor Supply
Voltage
Vmotor is one of SD02B power sources. If users
choose Vmotor as power source for circuit (in Single
Supply Mode), Vmotor will supplies power to both
stepper motor and SD02B circuit. Although SD02B
provides protection against wrong polarity for this
input, user must ensure the voltage and polarity of
connection are correct before providing the power so
that SD02B can function correctly.
GND
System Ground
Common ground for both logic operation and stepper
motor power source.
PULSE
Stepping Pulse
Input Pin
Input to drive the stepper motor. This pin is
TTL/CMOS logic (5V and 0V). Each pulse (logic
change from 0 to 1) will drive the stepper motor 1
step. SD02B has 2/5/10 micro stepping.
DIR
Stepper Motor
Rotating Direction
Input Pin
Input for stepper motor to rotate CW (clockwise) or
CCW (counterclockwise). This pin is TTL/CMOS
logic (5V and 0V). The direction is depends on the
connection sequence of stepper motor wires to
SD02B. For example:
DIR = 0V Æ CW
DIR = 5V Æ CCW
EN
Stepper Driver
Enable Pin
Input pin to enable SD02B. This pin is TTL/CMOS
logic (5V and 0V). 5V will enable the motor driver
further hold the shaft of stepper motor while 0V will
disable the motor driver and release the shaft of the
stepper motor. By default, the driver is disabled for
power saving.
*Vin
Circuit Supply
Voltage
*Vin is another power source for SD02B. If users
choose *Vin as power source for circuit (in Dual
Supply Mode), *Vin will supplies power to SD02B
circuit and Vmotor will supplies power to stepper
motor. Although SD02B provides protection against
wrong polarity for this input, user need to ensure the
voltage and polarity of connection are correct before
providing the power so that SD02B can function
correctly.
Single Supply Mode and Dual Supply Mode are designed to support stepper motor with
wider range of supplies. If the stepper motor being used is rated between 8 to 20V, Single
Supply Mode can be used. If the stepper motor is rated below 8V or above 20V, Dual Supply
Mode must be chosen. However, stepper motor with ratings beyond 3 to 40V is not support in
any mode. Please refer to Absolute Maximum Rating tables in the next page for further
information.