DQ278M is 2-phase stepper motor driver based on advanced
DSP control. It is new fully digital driver configured by DSP control chip
and unique circuit. The driving voltage is DC24V-80V, adapting to all
models of 2-phase hybrid stepper motor whose current is below 7.0A and
with 57-86mm outer diameter. The internal driver circuit is similar to
that of servo control, which makes the motor run smoothly, almost no
vibration and noise. The max positioning accuracy can be up to 40,000
steps/R. It is widely applied in medium/small NC equipment with high
resolution like engraving machines, small CNC machine, packaging machinery
and etc.
Features
¡ñ High performance and competitive price
¡ñ 16-channel selectable resolution, max resolution 40,000
steps/R
¡ñ Max response frequency up to 200Kpps
¡ñ Coil current will be automatically reduced to 1/2 of pre-set
current when stepper pulse stops over 100ms.
¡ñ Optical isolating signals I/O
¡ñ Driving current can be adjusted from 1.2A/phase to 7.0A/phase
through the 16 channels.
¡ñ Single power supply (Voltage range: DC24V-80V)
¡ñ Phase memory function (Note: The driver can memorize the motor
phase automatically when the input stops over 3 seconds. And also it
can recover the phase automatically when it is re-powered or MF signals
changes from low level to high
level. )
Current Setting
The working current of the driver is set by DIP-1
terminal. For more details, please refer to the following diagram.
Micro Steps Setting
The micro steps of the driver are set by DIP-2 terminal with total 16
channels. They are set separately by the first 4 of the 6 DIP-switch. (The
other 2 are for function setting).
Details are as below. Micro steps (pulse/R)
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For more details, please contact bs@bsjd.com |