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NC 3MA2283 High Performance Microstepping Driver for Driving 3phas Hybrid Stepping Motor
Introduction
- The 3MA2283 is a high performance and low noise microstepping driver based on pure-sinusoidal current control technology. It’s suitable for driving 3-phas hybrid stepping motors. By using advanced bipolar constant-current chopping technique, the 3MA2283 can output more torque than other drivers at high speed. The microstep capability allows stepping motors to run at higher smoothness, less vibration and lower noise. Its pure-sinusoidal current control technology allows coil current to be well controlled with relatively small current ripple, therefore smaller motor noise and less motor heating can be achieved.
Features
- High quality, cost-effective
- Low motor & driver heating
- Supply voltage from up to 220VAC
- Output current up to 8.3A
- TTL compatible and opto-isolated inputs
- Automatic idle-current reduction
- Input frequency up to 250 KHz
- 16 microstep resolutions selectable
- Suitable for 3-phase stepping motors
- DIP switch microstep & current settings
- Support PUL/DIR & CW/CCW modes
Applications
- Suitable for large and medium automation machines and equipments, such as engraving machines, labeling machines, cutting machines, laser phototypesetting systems, plotting instruments, CNC machines, pick-place devices, and so on. Particularly adapt to the applications desired with low noise, low vibration, high speed and high precision.
Specifications:
|
Parameters |
3MA2283 |
|||
|
|
Min |
Typical |
Max |
Unit |
|
Output current |
2 |
- |
8.3 |
A |
|
Supply voltage |
150 |
180 |
220 |
VAC |
|
Logic signal current |
7 |
10 |
16 |
mA |
|
Pulse input frequency |
0 |
- |
400 |
KHz |
|
Isolation resistance |
500 |
|
|
MΩ |
Operating Environment and other Specifications
|
Cooling |
Natural Cooling or Forced cooling |
|
|
Operating Environment |
Environment |
Avoid dust, oil fog and corrosive gases |
|
Ambient Temperature |
0 ℃－ 50℃ (32℉ － 122℉) |
|
|
Humidity |
40%RH － 90%RH |
|
|
Operating Temperature |
70℃ (158℉) Max |
|
|
Vibration |
5.9m/s2 Max |
|
|
Storage Temperature |
-20 ℃ － 65℃ (-4℉ － 149℉) |
|
|
Weight |
Approx. 1500g |
|
Mechanical Specifications (unit: mm)
- Driver’s reliable working temperature should be <70℃(158℉), and motor working temperature should be <80℃(176℉);
- It is recommended to use automatic idle-current mode, namely current automatically reduce to 60% when motor stops, so as to reduce driver heating and motor heating;
- It is recommended to mount the driver vertically to maximize heat sink area. Use forced cooling method to cool the system if necessary.
Pin Assignment and Description
- The 3MA2283 has two connectors, connector P1 for control signals connections, and connector P2 for power and motor connections. The following tables are brief descriptions of the two connectors of the 3MA2283.
Connector P1 Configurations
|
Pin Function |
Details |
|
PUL+ |
Pulse signal: In single pulse (pulse/direction) mode, this input represents pulsesignal, effective for each rising edge; 4-5V when PUL-HIGH, 0-0.5V whenPUL-LOW. In double pulse mode (pulse/pulse) , this input represents clockwise (CW) pulse，effective for high level. For reliable response, pulsewidth should be longer than 1.2μs. Series connect resistors for current-limitingwhen +12V or +24V used. |
|
PUL- |
|
|
DIR+ |
representing two directions of motor rotation; in double-pulse mode(set by inside jumper), this signal is counter-clock (CCW) pulse, effective for high level. For reliable motion response, |
|
DIR- |
|
|
ENA+ |
(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- |
|
|
FAULT+ |
Fault signal positive: FAULT+ is an optocoupler output from open-collector circuit, maximum permitted input voltage is 30VDC; maximum output current 20mA. It generally can be serial connected to PLC input terminal. |
|
FAULT- |
Fault signal negative. |
Connector P2 Configurations
|
Pin Function |
Details |
|
AC |
AC power supply inputs. Recommend use isolation transformers with theoretical output voltage of 80～220 VAC, leaving room for power fluctuation and back-EMF. |
|
AC |
|
|
U、V、W |
Motor Phase U、V、W |
|
PE |
Ground terminal. Recommend connect this port to the ground for better safety. |
Selecting Microstep Resolution and Driver Output Current
- This driver uses a 9-bit DIP switch to set microstep resolution, motor operating current and control signal mode:
- Microstep Resolution Selection
- Microstep resolution is set by SW1, 2, 3, 4 of the DIP switch as shown in the following table:
|
|
|
|
|
|||||
|
200 |
ON |
ON |
ON |
ON |
|||||
|
400 |
OFF |
ON |
ON |
ON |
|||||
|
1600 |
ON |
OFF |
ON |
ON |
|||||
|
3200 |
OFF |
OFF |
ON |
ON |
|||||
|
6400 |
ON |
ON |
OFF |
ON |
|||||
|
12800 |
OFF |
ON |
OFF |
ON |
|||||
|
25600 |
ON |
OFF |
OFF |
ON |
|||||
|
600 |
OFF |
OFF |
OFF |
ON |
|||||
|
1000 |
ON |
ON |
ON |
OFF |
|||||
|
1200 |
OFF |
ON |
ON |
OFF |
|||||
|
2000 |
ON |
OFF |
ON |
OFF |
|||||
|
4000 |
OFF |
OFF |
ON |
OFF |
|||||
|
5000 |
ON |
ON |
OFF |
OFF |
|||||
|
6000 |
OFF |
ON |
OFF |
OFF |
|||||
|
8000 |
ON |
OFF |
OFF |
OFF |
|||||
|
10000 |
OFF |
OFF |
OFF |
OFF |
Current Settings
- The latter four bits (SW7, 8, 9) of the DIP switch are used to set the dynamic current. Select a setting closest to your motor’s required current.Dynamic current setting
Notes: Due to motor inductance, the actual current in the coil may be smaller than the dynamic current setting, particularly under high speed condition.
Standstill Current
|
Peak current(A) |
RMS(A) |
SW1 |
SW2 |
SW3 |
SW4 |
|
2.0 |
1.41 |
OFF |
OFF |
OFF |
OFF |
|
2.4 |
1.70 |
ON |
OFF |
OFF |
OFF |
|
2.8 |
1.98 |
OFF |
ON |
OFF |
OFF |
|
3.2 |
2.26 |
ON |
ON |
OFF |
OFF |
|
3.6 |
2.55 |
OFF |
OFF |
ON |
OFF |
|
4.2 |
2.97 |
ON |
OFF |
ON |
OFF |
|
4.8 |
3.39 |
OFF |
ON |
ON |
OFF |
|
5.2 |
3.68 |
ON |
ON |
ON |
OFF |
|
5.6 |
3.96 |
OFF |
OFF |
OFF |
ON |
|
6.0 |
4.24 |
ON |
OFF |
OFF |
ON |
|
6.4 |
4.53 |
OFF |
ON |
OFF |
ON |
|
6.8 |
4.81 |
ON |
ON |
OFF |
ON |
|
7.2 |
5.09 |
OFF |
OFF |
ON |
ON |
|
7.6 |
5.37 |
ON |
OFF |
ON |
ON |
|
8.0 |
5.66 |
OFF |
ON |
ON |
ON |
|
8.3 |
5.80 |
ON |
ON |
ON |
ON |
The 3MA2283 has automatic idle-current reduction function. The current automatically be reduced to 60% of the selected dynamic current setting 0.2 second after the last pulse. Theoretically, this will reduce motor heating to 36% (due to P=I2*R) of the original value. If the application needs a different standstill current, please contact NC-TECH.
Typical Connection
- A complete stepping system should include stepping motor, stepping driver, power supply and controller (pulse generator). A typical connection is shown as figure.
