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Home > Motor Controls > Stepper Motor Drivers > 2 Phase Stepper Driver

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Digital Stepper Motor Driver, 2 Phase, DC 24V ~ 80V

$121.69

Digital stepper driver powered by DC 24V ~ 80V/ AC 20V ~ 70V can drive Nema 34 2 phase hybrid stepper motor for CNC machine,

SKU: CHN-STEP-M808T

Free Shipping Worldwide

Delivery date: 6-12 days

Overview
Documents

Digital stepper motor driver equipped with an encoder offers adjustable current control and multiple step resolutions, allowing the hybrid bipolar stepper motor to be driven with simple step and direction inputs.

Specification

Model	CHN-FYDM808T
Matched Motor	Nema 34 2 Phase Stepper Motor
Voltage	DC 24V ~ 80V/ AC 20V ~ 70V
Drive Current	2.4A ~ 7.8A 8 Channels
Microstepping Setting	51200 steps/rev 16 Channels
Hightest Pulse Frequency	250Kpps
Certification	CE,FCC,RoHS
Dimensions	150 x 97.5 x 53mm
Weight	0.8kg
Function Description
Functions	Operation Instructions
PWR	Power Indicating Lamp	When the driver is powered on, the green light is always on.
ALARM	Overcurrent/Undervoltage Indicator	When the overvoltage and overcurrent faults occur, the red light is always on.
PUL+	Positive End of Control Pulse Signal	Connect to signal power,+5V to +24V can be driven.
PUL-	Negative End of Control Pulse Signal	The falling edge is valid, and the motor takes one step whenever the pulse changes from high to low. Input resistance 220Ω. Requirements: low level 0 to 0.5V, high level 4 to 5V, pulse charge >2.5us.
DIR+	Positive End of Directional Signal	Connect to signal power,+5V to +24V can be driven.
DIR-	Negative End of Directional Signal	Used to change the direction of the motor.Input resistance 220Ω. Requirements: low level 0 to 0.5V, high level 4 to 5V, pulse charge >2.5us.
ENA+	Positive End of Enabling Signal	Connect to signal power,+5V to +24V can be driven.
ENA-	Negative End of Enabling Signal	When it is valid (low level), the motor coil current is turned off, the driver stops working, and the motor is in a free state.
ALM+	Positive End of Alarm Signal Output	When over-current, over-voltage, under-voltage or over-tolerance alarms, the alarm signal is valid (the output photocoupler is turned on). ALM+ is connected to the pull-up power to use the positive pole of the output power supply, and ALM- is connected to the negative pole of the output power supply. Maximum drive current 50mA.
ALM-	Negative End of Alarm Signal Output

Operating Current Setting

Peak Current	SW1	SW2	SW3
2.4A	on	on	on
3.0A	off	on	on
3.8A	on	off	on
4.5A	off	off	on
5.2A	on	on	off
6.0A	off	on	off
6.8A	on	off	off
7.8A	off	off	off

Microstep Segmentation Setting

Pulse/Revo	SW5	SW6	SW7	SW8
Default	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
40000	off	off	off	off

Dimensions (Unit: mm)

Wiring Diagram

Tips: Power-off phase memory function of stepper motor driver

The stepper motor driver is in a certain phase when the power is off. If the phase is different from this phase when the power is turned on the next time, the motor will jitter. In order to eliminate the jitter, the phase when the power is off must be memorized.

The running sequence of the stepper motor is 8. If it stops at the 4th step, the board is powered off, and after the power is re-powered, if you directly start to drive the 1st step at the 4th position, there will be a skip. The stepper motor driver is an actuator that converts electrical pulses into angular displacement. When the stepper driver receives a pulse signal, it drives the stepper motor to rotate a fixed angle in the set direction, and its rotation runs step by step at a fixed angle. The stepper motor driver can control the angular displacement by controlling the number of pulses, so as to achieve the purpose of accurate positioning; at the same time, it can control the speed and acceleration of the motor rotation by controlling the pulse frequency, so as to achieve the purpose of speed regulation and positioning. If the system can still remember that it is still in step 4, it can correctly issue the command to go to step 5 or 3.

Most stepper motor drivers do not have the power-down phase memory function, especially the stepper motor drivers that use common dedicated ICs. The reset signal of the reset pin after the dedicated IC is powered on will reset the motor phase to the initial value. The power-on jitter should be It is inevitable. Stepper motor drive Stepper motor cannot be directly connected to the power frequency AC or DC power supply to work, but must use a dedicated driver. As shown in the figure, it is composed of a pulse generation control unit, a power drive unit, and a protection unit. The two units enclosed by the dot-dash line in the figure can be controlled by a microcomputer.

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