DSP-22208 220V Stepper Motor Driver for nema34 nema42 motor

 

Features:

1.High performance, low price, low noise, excellent stability with 16 files equidistant constant moment subdivision, the highest resolution of 60000 steps / turn

2.Using a unique control circuit, effectively reducing the noise, increasing the rotation of the highest response frequency up to 200Kpps.

3. When the step pulse stops for more than 100ms, the coil current

is automatically reduced to 20% -80%STOP / Im setting).

4. Using a unique control circuit, effectively reducing the noise, increasing the rotation of the highest response frequency up to 200Kpps.

5. 5.Drive current from 0.7A / phase to 7.0A / 16 points adjustable, single power input, voltage range: AC AC110-220V error protection: with overcurrent, overheating, undervoltage protection.

6. Phase memory function (Note: When the input pulse stops for more than 5 seconds, the drive automatically memorizes the motor phase, re-power or the MF signal is effectively turned invalid when the drive is automatically restored).

Typical application:

1. Mainly used in woodworking engraving machine, CNC machine tools, ceramic equipment, packaging equipment, electronic equipment, drilling equipment, glass machinery, computer embroidery machine, constant speed applications, laser cutting machines and other automation equipment. In the user expect high speed, high precision, high stability of the equipment.

2. DSP-22208 for the constant angle constant torque subdivided drive, drive voltage AC 110V-220V, adaptive current below 8.0A, diameter 86-130mm various models of three-phase hybrid stepper motor.

3.The circuit is similar to the servo control principle of the circuit, the circuit can make the motor running at low speed, almost no vibration and noise, the motor torque at high speed is much higher than the two-phase and five-phase hybrid stepper motor. Positioning accuracy up to 60000 steps / turn

 

Drawing:

Output current selection

The drive uses a bipolar constant current mode, the maximum output current value of 7.5A / phase (RMS), through the drive side board 5,6,7 three different combinations of switches can be easily selected 8 kinds of current values from 2.0 A to 7.5A (see current selection table).

(Note: The current here refers to the output of the sine wave current per phase of the driver rms, the use of string ammeter can not get the correct reading.)

Note: The user must change the output current to the drive to re-power to take effect.

Notable features

Using 32-bit DSP as the core of the all-digital control, advanced space vector algorithm to optimize low-speed vibration and high-speed performance, you can achieve a variety of motor adaptive matching optimization control method, software updates, easy to upgrade.

Using a flexible subdivision algorithm, so that the drive regardless of what kind of subdivided motor can maintain the best performance, greatly improving the stability of the low subdivision and noise. Even if the user can not adopt the high subdivision selection because of the limitation of the output pulse frequency of the control system, it can obtain the low speed stability and the high speed, so as to reduce the requirement of the control system and improve the overall cost of the system, Achieve low vibration, low noise and low power consumption.

Power supply

The design of switching power supply inside the driver ensures that it can adapt to a wide voltage range. It is recommended to use 80 ~ 220VAC. The increase of voltage will lead to the increase of operation noise but will be beneficial to high speed torque. Motor electromagnetic induction will lead to the motor housing induces a certain charge, in order to ensure the safety of users, be sure to use the wire diameter of 2mm2 above the motor housing protection cable and drive chassis ground terminal and the protection of the earth good connection, and should Use an isolating transformer to power the drive.

Power quality directly affects the performance and function of the drive, the power supply ripple size affect the accuracy of subdivision, power supply common mode interference suppression system affect the anti-jamming system, so for the higher application requirements, the user must Pay attention to improve the quality of the power supply.

Automatic half current

If the drive does not receive a new pulse for 0.1s, it will automatically enter the half-current state. The phase current will be reduced to 50% of the standard value. To reduce the power consumption, the driver will automatically withdraw from the half current state when a new pulse is received.

 Offline function

When the offline signal is input, the drive will cut off the motor winding current so that the motor shaft is in a free state, and the step pulse will not be able to respond. This state can effectively reduce the drive and motor power and temperature rise. After the offline control signal is removed, the drive automatically reverts to the phase sequence before offline and restores the motor current. When this feature is not required, the offline side can be left floating.

 Overvoltage protection

When the power supply input voltage exceeds 280VAC, or feedback brake causes the bus voltage exceeds 400VDC, the driver overvoltage protection circuit action, the driver alarm light (red) flashing, the drive suspends the drive motor, manual power and then power on the alarm The After the failure of the user need to check the power supply voltage, appropriate to reduce the input power supply voltage.

Undervoltage protection

When the power supply input voltage is lower than 60VAC, the driver undervoltage protection circuit action, the driver alarm light (red) flashing, the drive will suspend the drive motor, manual power and then power to lift the alarm. After the failure of the user need to check the power supply voltage and capacity, the appropriate increase in the input power supply voltage.

control signal

Input control signal using double-ended interface, according to the need to take a total of Yang, differential and other forms of interface. Interface can be adapted to TTL, OC, differential signal formats, pulse and direction of the port can be adapted to +3 V ~ 24V voltage. Offline port 510 ohm resistor can adapt to TTL signal, when using a higher signal voltage should be appropriate in series current limiting resistor, 12V when the string 1KΩ, 24 V when the string 2KΩ

Pulse signal input The drive port has an internal optocoupler, and the optocoupler is once interpreted by the drive as a valid pulse. For a common anode, the low level is active, and the driver will drive the motor one step at the corresponding timing. In the single pulse mode, this signal is used as a pulse input signal. In order to ensure a reliable response to the pulse signal, the duration of each optocoupler should not be less than 2μs. The signal response frequency of this drive is 100KHz, too high input frequency or non-standard pulse width may not get the correct response.

Direction signal input In the single pulse mode, the signal is used as the steering signal to control the motor. The internal and external couplings of the terminal are interpreted as two directions to control the operation of the motor.When controlling the motor steering, make sure that the direction of the signal leading pulse signal is established at least 5μs, thus avoiding the driver’s error response to the pulse.

Offline signal input When the internal optocoupler is in the on state, the motor phase current is cut off and the rotor is in the free state (offline). After the optocoupler is turned off, the motor current returns to the size and direction before the off-line. When this function is not required, the off-line signal can be left floating.