| Features |
- Anti-Resonance, provides optimum torque and nulls mid-range instability
- Motor self-test and parameter auto-setup 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 +40 VDC
- Output current programmable, from 0.3A to 2.2A
- Pulse input frequency up to 75 KHz
- TTL compatible and optically isolated input
- Automatic idle-current reduction (Reduction rate can be software configured)
- Support PUL/DIR and CW/CCWmodes
- Over-voltage, over-current, phase-error protections
|
|
Introduction |
The DMD4022 is a versatile fully digital stepping driver based on a DSP with advanced control
algorithm. The DMD4022 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 drivers in the markets. Its unique features make the DMD4022 an ideal solution for applications that require low-speed smoothness. The user can configure the standstill current in the software. What’s more, a pulse filter (smoother) has been built into the DMD4022.
|
| Applications |
|
Suitable for a wide range of stepping motors, from NEMA frame size 14 to 23. It can be used in various kinds of machines, such as laser cutters, laser markers, high precision X-Y tables, labeling machines, and so on. Its unique features make the DM422 an ideal solution for applications that require low-speed smoothness.
|
Electrical Specifications (Tj=25℃) |
|
Parameters
|
DMD4022
|
| |
Typical
|
|
Unité
|
|
Courant
|
0.3
|
-
|
2.2
|
Amps
|
|
Tension d'alimentation (DC)
|
20
|
-
|
40
|
VDC
|
|
Signaux de commande
|
7
|
10
|
16
|
mA
|
|
Fréquence des signaux
|
0
|
-
|
75
|
Khz
|
|
Résistance d'isolement
|
500
|
-
|
-
|
MΩ
|
|
Mecanical Specifications (Unit: mm, 1 inch=25.4 mm) |
|
Figure 1 Mechanical specifications
|
Pinout an description |
Control Signal Connector P1 pins
|
Pin Function
|
Details
|
|
PUL﹢(+5V)
|
Pulse signal: in single pulse (pulse/direction) mode, this input represents pulse signal, effective for each rising edge; 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 2.5us. Series connect resistance for current-limiting when +12V or +24V used.
|
|
PUL- (PUL)
|
|
DIR+ (+5V)
|
DIR signal: HIGH/LOW level signal, corresponding to motor rotor direction. For reliable response, DIR must be ahead of PUL by 5µs at least, the initial motor direction is related with motor wiring, exchange any set of coil can reverse motor initial direction. 4-5V when DIR- HIGH, 0-0.5V when LOW.
|
|
DIR- (DIR)
|
|
OPTO
|
Opto-coupler power supply, and the typical voltage is +5V. Series connect resistors (at the PUL, DIR, ENA terminals) for current-limiting when +12V or +24V used. |
|
ENA+ (+5V)
|
Enable signal: this signal is used for enabling/disabling the driver. High level for enabling the driver and low level for disabling the driver. Usually left unconnected (enabled).
|
|
ENA- (ENA)
|
Power connector P2 pins
|
Pin Funtion
|
Details
|
|
Gnd
|
DC power ground
|
|
+V
|
DC power supply, +20VDC － +40VDC, Including voltage fluctuation and EMF voltage.
|
|
Phase A
|
Motor coil A (leads A+ and A-)
|
|
Phase B
|
Motor coil B (leads B+ and B-)
|
|
Microstep Resolution Selection |
|
Microstep resolution is specified by 5, 6 DIP switches as shown in the following table:
| Microstep |
Steps/rev.(for 1.8°motor) |
SW5 |
SW6 |
| 1 to 512 |
Default/Software configured |
ON |
ON |
| 8 |
1600 |
OFF |
ON |
| 16 |
3200 |
ON |
OFF |
| 32 |
6400 |
OFF |
OFF |
|
Current Setting
| Peak Current RMS Current |
SW1 |
SW2 |
SW3 |
| Default/Software configured (0.3 to 2.2A) |
ON |
ON |
ON |
| 0.5A 0.35 A |
OFF |
ON |
ON |
| 0.7A 0.50 A |
ON |
OFF |
ON |
| 1.0A 0.71 A |
OFF |
OFF |
ON |
| 1.3A 0.92 A |
ON |
ON |
OFF |
| 1.6A 1.13 A |
OFF |
ON |
OFF |
| 1.9A 1.34 A |
ON |
OFF |
OFF |
| 2.2A 1.56 A |
OFF |
OFF |
OFF |
|
| |
Typical Connections |
|
Figure 2: Typical connections
|
