Full Digital Stepper Drive DM2282T
Tel: 0086-2587156578
Web:
Email:[email protected]
8
Dynamic Current Setting
Peak Current
RMS Current
SW1
SW2
SW3
Default
Default
2.2A
1.6A
3.2A
2.3A
4.2A
3.2A
5.2A
3.7A
6.3A
4.4A
7.2A
5.2A
8.2A
5.9A
OFF
OFF
OFF
ON
OFF
OFF
OFF
ON
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
ON
ON
ON
ON
ON
Notes:
Due to motor inductance, the actual current in the coil may be smaller than the dynamic current
setting, particularly under high speed condition.
Standstill Current Setting
SW4 is used for this purpose. OFF meaning that the standstill current is set to be half of the selected dynamic
current, and ON meaning that standstill current is set to be the same as the selected dynamic current.
The current automatically reduced to 50% of the selected dynamic current one second after the last pulse.
Motor auto-identification and parameter auto-configuration
The drive will operate the function of motor auto-identification and parameter auto-configuration when power on,
and calculate the optimal parameter using for current control after this processing,, then the stepper motor can
output optimal torque.
8. Wiring Notes
In order to improve anti-interference performance of the drive, it is recommended to use twisted pair shield
cable.
To prevent noise incurred in PUL/DIR signal, pulse/direction signal wires and motor wires should not be tied
up together. It is better to separate them by at least 10 cm, otherwise the disturbing signals generated by motor
will easily disturb pulse direction signals, causing motor position error, system instability and other failures.
If a power supply serves several drives, separately connecting the drives is recommended instead
of daisy-chaining.
It is prohibited to pull and plug connector P2 while the drive is powered ON, because there is high current
flowing through motor coils (even when motor is at standstill). Pulling or plugging connector P2 with power
on will cause extremely high back-EMF voltage surge, which may damage the drive.
9. Typical Connection
A complete stepping system should include stepping motor, stepping drive, power supply and controller
(pulse generator). A typical connection is shown as figure 10.
