page
│
11
Notes
1) The corresponding colors of different motors are different. When using the
motors, the specifications of the motors shall prevail. For example, the colors of
57 and 86 motor wires are different.
2) The phases are relative, but the windings of different phases cannot be
connected to the terminals of the same phase of the driver (A +, A- is one phase,
B +, B- is the other phase). If the motor direction is different from the expected
direction, only A + , A-.
3) This driver can only drive two-phase hybrid stepping motors, not three-phase
and five-phase stepping motors.
4) The method of judging whether the stepper motor is connected in series or in
parallel: Rotate the shaft of the motor directly by hand without connecting the
driver. If it can rotate easily and evenly, it means that the wiring is correct. If it
encounters large resistance and unevenness Accompanied by a certain sound
indicating that the wiring is incorrect.
6. Signal Input
6.1 Pulse Signal : STEP
The driver port has a built-in optocoupler, which can accept 5-24VDC single-ended or
differential signals, and the highest voltage can reach 26V. Its change from off to on is
understood as accepting a valid pulse edge command. For the common anode, the low level
is valid (the common negative is valid for the high level). At this time, the driver will drive the
motor to run one step according to the corresponding timing. For the normal operation of the
driver, the duty cycle of the effective level signal should be below 50%. In order to ensure the
reliable response of the pulse signal, the duration of the pulse effective level of the subdivided
driver should not be less than 1us. The signal response frequency of the subdivision driver is
500KHz, and an excessively high input frequency may get an incorrect response.
6.2 Direction Signal : DIR
Can accept 5-24VDC single-ended or differential signals, the highest voltage can reach 26V.
The on / off of the internal photocoupler at this end is interpreted as two directions of motor
operation. The change of the direction signal will change the direction of motor operation. The
floating of this end is equivalent to the input high level. It should be noted that the subdivision
driver should ensure that the direction signal is established at least 10us ahead of the pulse
signal input to avoid the drivers incorrect response to the pulse signal. When the motor is
commutated, it must be switched after the motor decelerates and stops to the starting
frequency. The commutation signal must be changed after the last STEP pulse of the previous
direction signal and before the first STEP pulse of the next direction. When no commutation
is required, the direction signal terminal can be left floating.
Motor Connection / Signal Input
