DM542S
USER MANUAL
www.cloudratmotor.com
3
3. Drive Port and Connection
3.1 Port function description
Function
Grade
Definition
Remarks
Power supply input port
V+
Input V+ power supply
DC 24~50V
V-
Input V- power supply
Motor connection port
B-
connect two terminals of
motor’s phase-B winding
B+
A-
connect two terminals of
motor’s phase-A winding
A+
Enable connection
ENA+
Enable control interface
3.3 ~ 24V level
compatible
ENA-
Pulse connection
PUL+
Pulse input interface
PUL-
DIR+
Direction input interface
DIR-
3.2 Power supply input
The power supply of the drive can be both AC power and DC power, and the input voltage range is 24V~50VDC.
Input power polarity should not be reversed!!!
The drive
’
s work mode is constant current control. The drive output the voltage to motor by changing the input
power into PWM chopping wave when it is working. In this case, the input power will affect the performance of
drive.
Power selection reference:
Voltage:
The stepper motor has the characteristic of torque decreasing as the motor speed increases, and the voltage of
the input power supply will affect the declining amplitude of the motor torque at high speed. Increasing the
voltage of the input power supply appropriately can increase the output torque of the motor at high speed. And
use low voltage when it is low speed required, can lower motor
’
s heating appropriately.
Current:
The work of the drive is to convert the input power supply with high voltage and low current to the low voltage
and high current at both terminals of the motor winding.In this case, the current of power supply will be lower
than the motor
’
s.
