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SL42D Two-phase closed loop stepper driver
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Overview
SL42D is a new generation of high-performance two-phase digital stepping driver based on 32-bit DSP technology developed by our company, with a driving voltage of DC18V-60V, adaptable current of 2.0A or less, and a variety of models of two-phase hybrid 1000-wire closed-loop motors with an external diameter of 42 or less.
Drive sampling similar to the servo control principle, unique circuit design, superior software algorithm processing, so that the motor even in the low subdivision can run smoothly, almost no vibration and noise, smooth, accurate current control technology greatly reduces the motor heating, external 16-stage and other fish degree of constant torque subdivision, the highest adjustable subdivision 51200 pulses / turn, optocoupler isolation of the differential signal input, resistance to the disturbance of the ability to be strong The motor has over-voltage, under-voltage, over-current protection and other error protection functions. In 3C, LED chip and other medium and high-speed applications, its smoothness, vibration, noise performance advantage is obvious, can greatly improve the performance of the equipment.
Adapts to Series 42 2-phase closed-loop stepper motors.
Characteristic
• Adopting the new 32-bit motor control special DSP chip;
• With functions such as oscilloscope monitoring;
• Impulse response frequency up to 200KHZ;
• Subdivision setting (within 200~51200);
• With protection such as over-current, over-voltage and tracking error over-error;Performance indicators
Electrical indicators
Describe SL42D Min. values Typical values Max.values Unit Output Current (Peak) 0 - 2 A Supply Voltage 18 - 60 VDC Control Signal Current 7 10 20 mA Step Pulse Frequency 0 - 200 KHz Insulation Resistance 500 - - MΩ Alarm output logic current - - 500 mA Environmental indicators
Cooling method Natural or forced air cooling Operating environment Occasions for use Can not be placed next to other heat-generating equipment, to avoid dust, oil, corrosive gases, too much humidity and strong vibration places, prohibit combustible gases and conductive dust; Temp -20℃-+50℃ Humidity 40-90%RH Vibration 5.9mm/s2 max Storage temperature -20℃~65℃ Weight 0.3kg 
Control signal wiring instructions
Function Symbolic Mean Note Pulse Signal PUL+ Input Signal Optocoupler Positive Connect signal and power, both can drive, input voltage range: +5V~24V. PUL- SW6=OFF: Step Pulse Signal Falling edge effective, the motor takes one step each time the pulse changes from high to low. Pulse width ＞2.5μs. SW6=ON: Forward Step Direction Signal Direction Signal DIR+ Input Signal Optocoupler Positive Connect power, input voltage range:+5V~24V. DIR- SW6=OFF: Direction Control Signal Used to change motor direction. SW6=ON: Reverse Step Pulse Signal Falling edge effective, the motor takes one step each time the pulse changes from high to low. Pulse width＞2.5us. Enable Signal EN+ Input Signal Optocoupler Positive Connect signal and power, both can drive, input voltage range: +5V~24V. EN- Motor Release and Alarm Reset Signal Effective (low level) when the motor coil current is turned off, the motor is in a free state, and the alarm signal is cleared. Alarm Signal ALM+ Alarm Signal Output Positive When the red light is flashing, the alarm signal is active (output optocoupler is on). ALM+ is connected to the pull-up resistor to the output power positive, and ALM- is connected to the output power negative. The maximum driving current is 10mA. ALM- Alarm Signal Output Negative Positioning Signal EX+ Positioning Signal Output Positive When the driver completes the given pulses, the positioning signal is active (output optocoupleris on). EX+ is connected to the pull-up resistor to the output power positive, and EX- is connected to the output power negative. The maximum driving current is 10mA. EX- Positioning Signal Output Negative Wiring instructions for power supply and motor
Function Symbolic Mean Note Power Input V+ DC Power Positive DC Power 18~60VDC V- DC Power Negative Motor Wiring A+ Stepper Motor Phase A Winding Phase A Motor Winding + A- Phase A Motor Winding - B+ Stepper Motor Phase B Winding Phase B Motor Winding + B- Phase B Motor Winding - Current and microstepping configuration
The subdivision and pulse mode are selected using an 8-bit DIP switch. (The lock current is set to 50% by default.)
Current Settings SW1 SW2 SW3 SW4 Logic Settings Single/Dual Pulse Settings SW5 SW6 Max. Current Settings Acceleration/Deceleration Time Settings SW7 SW8 SW9 SW10 ※ Note: The default is 3600, and it can be modified to any subdivision through the host computer software.
Subdivision Settings
Subdivision
(Steps/Rev)SW1 SW2 SW3 SW4 400 ON ON ON ON 800 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 51200 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 40000 OFF OFF OFF OFF 
Driver status LED indicator
LED codes ERROR ● Green light always on Motor running ●● Green light flashing Motor stopped ●● One red, one green Driver overcurrent ●●● Two red and one green Motor winding open circuit ●●●● Three red and one green Driver input overvoltage ●●●●● Four red and one green Driver input undervoltage ●●●●●● Five red and one green Position deviation warning ●●●●●●● Six red and one green Encoder error
SL42D Two-phase closed loop stepper driver
Still deciding? Get samples first, Contact US !
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