| Motor Type: | Stepper Motor |
|---|---|
| Model Number: | DM856 |
| Voltage: | 24V |
| Power Supply: | DC |
| Unit Type: | lot (3 pieces/lot) |
| Package Size: | 15cm x 15cm x 16cm (5.91in x 5.91in x 6.30in) |
| Package Weight: | 1.4kg (3.09lb.) |
Quick Details
Specifications
New authentic Leadshine stepper motor driver DM856
Features :
- Anti-Resonance, provides optimum torque and nulls mid-range instability
- Motor auto-identification and parameter auto-configuration technology, offers optimum responses with different motors
- Multi-Stepping allows a low resolution step input to produce a higher microstep output for smooth system performance
- Microstep resolutions programmable, from full-step to 102,400 steps/rev
- Supply voltage up to +80 VDC
- Output current programmable, from 0.5A to 5.6A
- Pulse input frequency up to 200 KHz
- TTL compatible and optically isolated input
- Automatic idle-current reduction
- Suitable for 2-phase and 4-phase motors
- Support PUL/DIR and CW/CCW modes
- Over-voltage, over-current, phase-error protection,
Introduction :
The DM856 is a versatility fully digital stepping drive based on a DSP with advanced control algorithm. The DM856 is the next generation of digital stepping motor controls. It brings a unique level of system smoothness, providing optimum torque and nulls mid-range instability. Motor auto-identification and parameter auto-configuration technology offers optimum responses with different motors and easy-to-use. The driven motors can run with much smaller noise, lower heating, smoother movement than most of the drives in the markets. Its unique features make the DM856 an ideal solution for applications that require low-speed smoothness.
Compared to the DM432C, broader input voltage and output current ranges make the DM856 can drive much more motors than the DM432C. What's more, owing to its higher performance DSP, driven motors can achieve much higher speed (above 3000RPM) than that of the DM432C, offering servo-like performances. It can be regarded as an improved model origin from DM556, while supports broader input voltage range.
Specifications :
1. General
Electrical Specifications (Tj= 25oC/77oF)
| Parameters |
DM856 |
|||
| 2CMin |
Typical |
Max |
Unit |
|
| Output current |
0.5 |
- |
5.6 (4.0 RMS) |
A |
| Supply voltage |
20 |
36 |
40 |
VDC |
| )Logic signal current |
7 |
10 |
16 |
mA |
| Pulse input frequency |
0 |
- |
200 |
kHz |
| Isolation resistance |
500 |
- |
- |
Mohm |
Connector P1 Configurations
| Pin Function |
Details |
| PUL+(+5V) |
Pulse signal: In single pulse (pulse/direction) mode, this input represents pulse signal, effective for each rising edge or falling edge (set by inside jumper J1); 4-5V when PUL-HIGH, 0-0.5V when PUL-LOW. In double pulse mode (pulse/pulse) this input represents clockwise (CW) pulse. For reliable response, pulse width should be longer than 1.5μs. Series connect resistors for current-limiting when +12V or +24V used. |
| PUL-(PUL) |
|
| DIR+(+5V) |
DIR signal: In single-pulse mode, this signal has low/high voltage levels, representing two directions of motor rotation; in double-pulse mode (set by inside J1), this signal is counter-clock (CCW) pulse, effective for low level. For reliable motion response, DIR signal should be ahead of PUL signal by 5μs at least. 4-5V when DIR-HIGH, 0-0.5V when DIR-LOW. |
| DIR-(DIR) |
|
| ENA+(+5V) | Enable signal: This signal is used for enabling/disabling the driver. High level (NPN control signal, PNP and Differential control signals are on the contrary, namely Low level for enabling.) for enabling the driver and low level for disabling the driver.. Usually left UNCONNECTED (ENABLED). |
| ENA-(ENA) |
Connector P2 Configurations
| Pin Function |
Details |
| +Vdc |
Power supply, 20~40 VDC, Including voltage fluctuation and EMF voltage. |
| GND |
Power Ground. |
| A+, A- |
Motor Phase A |
| B+, B- |
Motor Phase B |
Selecting Microstep Resolution and Drive Output Current
Microstep resolutions and output current are programmable, the former can be set from full-step to 102,400 steps/rev and the latter can be set from 0.5A to 5.6A.
However, when it's not in software configured mode, this driver uses an 8-bit DIP switch to set microstep resolution, and motor operating current, as shown below:
Microstep Resolution Selection
When it's not in software configured mode, microstep resolution is set by SW5, 6, 7, 8 of the DIP switch as shown in the following table:
| Microstep | Steps/rev.(for 1.8o motor) |
SW5 |
SW6 |
SW7 |
SW8 |
| 1 to 512 |
Default/Software configured |
on |
on |
on |
on |
| 2 |
400 |
off |
on |
on |
on |
| 4 |
800 |
on |
off |
on |
on |
| 8 |
1600 |
off |
off |
on |
on |
| 16 |
3200 |
on |
on |
off |
on |
| 32 |
6400 |
off |
on |
off |
on |
| 64 |
12800 |
on |
off |
off |
on |
| 128 |
25600 |
off |
off |
off |
on |
| 5 |
1000 |
on |
on |
on |
off |
| 10 |
2000 |
off |
on |
on |
off |
| 20 |
4000 |
on |
off |
on |
off |
| 25 |
5000 |
off |
off |
on |
off |
| 40 |
8000 |
on |
on |
off |
off |
| 50 |
10000 |
off |
on |
off |
off |
| 100 |
20000 |
on |
off |
off |
off |
| 125 |
25000 |
off |
off |
off |
off |
Current Settings
When it's not in software configured mode, the first three bits (SW1, 2, 3) of the DIP switch are used to set the dynamic current. Select a setting closest to your motor’s required current.
|
Peak Current
|
RMS Current |
SW1 |
SW2 |
SW3 |
| Default/Software configured (0.5 to 5.6A) |
OFF |
OFF |
OFF |
|
| 2.1A |
1.5A |
ON |
OFF |
OFF |
| 2.7A |
1.9A |
OFF |
ON |
OFF |
| 3.2A |
2.3A |
ON |
ON |
OFF |
| 3.8A |
2.7A |
OFF |
OFF |
ON |
| 4.3A |
3.1A |
ON |
OFF |
ON |
| 4.9A |
3.5A |
OFF |
ON |
ON |
| 5.6A |
4.0A |
ON |
ON |
ON |
Note: Due to motor inductance, the actual current in the coil may be smaller than the dynamic current setting, particularly under high speed condition.
Typical Connection
Mechanical Specifications (unit: mm [inch]) :
