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Новые товары
Характеристики
Описание товара
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.
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:
MicrostepSteps/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]) :
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