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Leadshine DM542 2 Phase Analog Stepper Driver for CNC and Laser machine

Leadshine DM542 2 Phase Analog Stepper Driver for CNC and Laser machine
Item Code: CNC-D-DM542
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Leadshine DM542 2 Phase Analog Stepper Driver for CNC and Laser machine

The DM542 is a versatility fully digital stepping drive based on a DSP with advanced control algorithm. The DM542 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 self-test and parameter auto-setup 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 DM542 an ideal solution for applications that require low-speed smoothness.
 
1. Anti-Resonance, provides optimum torque and nulls mid-range instability.
2. Motor self-test and parameter auto-setup technology, offers optimum responses with different motors.
3. Multi-Stepping allows a low resolution step input to produce a higher microstep output for smooth system performance.
4. Microstep resolutions programmable, from full-step to 102,400 steps/rev.
5. Supply voltage up to +40 VDC.
6. Output current programmable, from 1.0A to 4.2A.
7. Pulse input frequency up to 300 KHz.
8. Support PUL/DIR and CW/CCWmodes.
9. Over-voltage, over-current, phase-error protections.

Specification:

Parameters
DM542
Output current
Min
1A
Max
4.2 (3.0 RMS)A
Supply voltage
Min
+20VDC
Max
+50VDC
Logic signal current
Min
7mA
Max
16mA
Pulse input frequency
Min
0kHz
Max
300kHz
Isolation resistance
Min
500M ohms
Max
-
Operating Environment
Working Temprature
70 degree Max
Ambient Temperature
0-50 degree
Cooling
-
Natural Cooling or Forced cooling

Pins Configurations:

The DM542 has two connectors, connector P1 for control signals connections, and connector P2 for power and motor connections.

Terminal Definition:

P1:

Pin Function
Details
PUL+
PUL-
Pulse signal: In single pulse (pulse/direction) mode, this input represents pulse signal, each rising or falling edge active (software configurable);4-5V when PUL-HIGH, 0-0.5V when PUL-LOW. In double pulse mode (pulse/pulse) , this input represents clockwise (CW) pulse,active both at high level and low level (software configurable). For reliable response, pulse width should be longer than 2.5 us. Series connect resistors for current-limiting when +12V or +24V used. The same as DIR and ENA signals.
DIR+
DIR-
DIR signal: In single-pulse mode, this signal has low/high voltage levels, representing two directions of motor rotation; in double-pulse mode (software configurable), this signal is counter-clock (CCW) pulse,active both at high level and low level (software configurable). For reliable motion response, DIR signal should be ahead of PUL signal by 5 us at least. 4-5V when DIR-HIGH, 0-0.5V when DIR-LOW. Please note that rotation direction is also related to motor-driver wiring match. Exchanging the connection of two wires for a coil to the driver will reverse motion direction.
ENA+
ENA-
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).

P2 :

Pin Function
Details
GND
Power Ground
+Vdc
Power supply, 20~50 VDC, Including voltage fluctuation and EMF voltage.
A+, A-
Motor Phase A
B+, B-
Motor Phase B

Resolution & Current Selection:

Microstep resolution is set by SW5, 6, 7, 8 of the DIP switch as shown in the following table:

Steps/rev.(for 1.8 degree motor)
SW5
SW6
SW7
SW8
Default/Software configured, (From 200 to 102,400)
ON
ON
ON
ON
400
OFF
ON
ON
ON
800
ON
OFF
ON
ON
1600
OFF
OFF
ON
ON
3200
ON
ON
OFF
ON
6400
OFF
ON
OFF
ON
12800
ON
OFF
OFF
ON
25600
OFF
OFF
OFF
ON
1000
ON
ON
ON
OFF
2000
OFF
ON
ON
OFF
4000
ON
OFF
ON
OFF
5000
OFF
OFF
ON
OFF
8000
ON
ON
OFF
OFF
10000
OFF
ON
OFF
OFF
20000
ON
OFF
OFF
OFF
25000
OFF
OFF
OFF
OFF

The first three bits (SW1, 2, 3) of the DIP switch are used to set the dynamic current:

Peak Current
RMS Current
SW1
SW2
SW3
Default/Software configured (0.5 to 4.2A)
ON
ON
ON
1.46A
1.04A
OFF
ON
ON
1.91A
1.36A
ON
OFF
ON
2.37A
1.69A
OFF
OFF
ON
2.84A
2.03A
ON
ON
OFF
3.31A
2.36A
OFF
ON
OFF
3.76A
2.69A
ON
OFF
OFF
4.20A
3.00A
OFF
OFF
OFF
 

Connection between Controller&VDC&Motor:

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