Name: Leadshine ND2278 Driver
Brand: Jinan Hongyang CNC Machinery Co., Ltd.

Leadshine ND2278 Driver

Product Name:	leadshine nd2278 driver
Operating Voltage:	AC80V-220V
Applicable motor:	86, 110 stepper motors
Weight:
Features:	1. It can drive 4-wire and 8-wire two-phase stepping motors 2. The current setting is convenient, and can be arbitrarily selected between 0.45-7.8 (peak value) 3. 4-digit dial code, a total of 16 subdivisions 4. Low heat, low dryness, low vibration, high speed and stability 5. Impulse response frequency up to 200KHz 6. Can be directly connected to 220v AC
Package Dimensions:
Instructions For Use:	The CNC driver drives the stepper motor. The driver needs to select the power supply according to its supported voltage range. Then the driver is connected with the stepper motor and the control system, and the control system controls the cnc router machine running

phenomenon	Possible problem	solution
The motor does not rotate	Power light is off	Working normal
	Current setting is too small	According to the rated current of the motor, select the appropriate current gear
	Drive is protected	After the fault is excluded, power on again
	Enable signal is low	This signal is pulled high or not connected
	Wrong connection of motor wire	Arbitrarily exchange two wires of the same phase of the motor (for example, A + A- exchange wiring position)
Wrong direction of motor rotation	Motor wire is broken	Check and connect
Wrong direction of motor rotation	Wrong connection of motor wire	Check wiring
Alarm indicator light	Wrong connection of motor wire	Arbitrarily exchange two wires of the same phase of the motor (for example, A + A- exchange wiring position)
	The voltage is too high or too low	Check the power supply voltage
	Damaged motor or driver	Replace motor or driver
Inaccurate location	Signal is disturbed	Eliminate interference
	Shielded ground wire is not connected or not connected	Reliable ground
	Segmentation error	Set subdivision correctly
	Current is too small	Increase the current appropriately
	Control signal problems	Check whether the control signal meets the timing requirements
Stall when the motor accelerates speed	The acceleration time is too short	Increase the acceleration time appropriately
	Motor torque is too small	Choose high torque motor
	Low voltage or too low current	Properly increase the voltage or set a larger current