CL57T(V4.0) Closed-Loop Stepper Drive
5
Switch
Pic
Details
Rotating
switch S1
Drive Peak Current and Gain adjustment
DIP
switch S2
Microstep resolution
Rotation direction
Pulse Mode
Positional command filter
Closed / Open Loop Mode
Selector
switch S3
5V or 24V control signal voltage selector.
The factory setting is 24V, must need to set S3 to 5V if the control
signal voltage is 5V
4. Power Supply Selection
The CL57T(V4.0) can power medium and large size stepping motors (frame size from NEMA 17 to 24). To get good
driving performances, it is important to select supply voltage and output current properly. Generally speaking, supply
voltage determines the high speed performance of the motor, while output current determines the output torque of
the driven motor (particularly at lower speed). Higher supply voltage will allow higher motor speed to be achieved, at
the price of more noise and heating. If the motion speed requirement is low, it’s better to use lower supply voltage to
decrease noise, heating and improve reliability.
4.1 Power Supply Sharing
Multiple CL57T(V4.0) drives can share one power supply to reduce cost, if that power supply has enough power
capacity. To avoid cross interference, connect each stepper drive directly to the shared power supply separately. To
avoid cross interference, DO NOT daisy-chain connect the power supply input pins of the Drivers. Instead connect
them to power supply separately.
4.2 Selecting Supply Voltage
The CL57T(V4.0) is designed to operate within 18 - 50VDC voltage input. When selecting a power supply, besides
voltage from the power supply power line voltage fluctuation and back EMF voltage generated during motor
deceleration needs also to be taken into account. Please make sure leaving enough room for power line voltage
fluctuation and back-EMF voltage charge back, it’s recommended 24 - 48VDC.
Higher supply voltage can increase motor torque at higher speeds (>300 RPM), thus helpful for avoiding losing steps.
However, higher voltage may cause bigger motor vibration at lower speed, and it may also cause over-voltage
protection or even drive damage.
