ST M5045 Instruction Manual
User Manual:
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2-Phase stepper Motor Driver ST-M5045
1
Characteristics：
1. DC power input type:24V~50V
2. Output current:1～4.5A
3. Mircostep： 2、4、8、16、32、64、128、256 、5、10、25、50、125、250
4. Protect form : Overheated protect, Short-voltage, over-voltage, over-current protection
5. The maximum pulse rate is 300KHZ.
6. Dimensions：120mm*92mm*33mm
7. Weight：<280g.
8. Working environment：Temperature-15～40℃ Humidity<90%。
I/O Ports
：
1、DC+：DC power positive pole
Note: Must guard against exceeding 50V,
so as not to damage the module.
2、DC-：DC power cathode
3、A+、A-：Stepping motor one winding
4、B+、B-：Stepping motor other winding
5、PUL+、PUL -：Stepping pulse input+5V (Rising edge effective , rising edge duration >10μS)
6、DIR +、DIR-：Stepping motor direction input, voltage level touched off, high level foreward , low level reverse
7、ENA+、ENA-: motor free
Typical
Connection
Switch Choice:
1、 Microstep choice:
Microstep Pluse/rev.(for 1.8°
motor)
SW5 SW6 SW7 SW8
2 400 ON ON ON ON
4 800 ON OFF ON ON
8 1600 ON ON OFF ON
16 3200 ON OFF OFF ON
32 6400 ON ON ON OFF
64 12800 ON OFF ON OFF
240Ω
240Ω
240Ω
R
R
R
PUL+
PUL-
DIR+
DIR-
ENA+
ENA-
VCC
PUL
DIR
ENA
DC POWER
24-50VDC
Stepper motor
DC-
DC+
A+
A-
B+
B-
VCC=5V,R=0Ω；
VCC=12V;R=1KΩ(1/8w)
VCC=24V;R=2KΩ(1/8w)
Resistor must be connected to
control singnal terminal
CONTROLLER
ST-M5045
2
128 25600 ON ON OFF OFF
256 51200 ON OFF OFF OFF
5 1000 OFF ON ON ON
10 2000 OFF OFF ON ON
25 5000 OFF ON OFF ON
50 10000 OFF OFF OFF ON
125 25000 OFF ON ON OFF
250 50000 OFF OFF ON OFF
2、 Current choice：
Peak current Reference current
SW1 SW2 SW3
1.0A 0.71A ON ON ON
1.5A 1.07A OFF ON ON
2.0A 1.43A ON OFF ON
2.5A 1.79A OFF OFF ON
3.0A 2.14A ON ON OFF
3.5A 2.50A OFF ON OFF
4.0A 2.86A ON OFF OFF
4.5A 3.21A OFF OFF OFF
3、 Full current or half current choice：
SW4:OFF＝Half current ; ON＝Full current；
4、 Pulse choice：
Usually default setting is step + direction.
Dimension
STEP+DIR：
4
5
2
6 3
1
In the driver has a jump：
CW+CCW：
