MA860H Leadshine Microstep 2-256 Microstep Driver 2 phase 7.2A AC18-80V fit 57 86 110 motor

Features:

Extremely cost-effective

Good high speed performance

Supply voltage up to 80VAC or +110VDC

Output current up to 7.2A

Self-adjustment technology

Pure-sinusoidal current control technology

Pulse input frequency up to 300 KHz

TTL compatible and optically isolated input

Automatic idle-current reduction

16 selectable resolutions in decimal and binary, up to 51,200 steps/rev

Suitable for 2-phase and 4-phase motors

Support PUL/DIR and CW/CCW modes

Short-voltage, over-voltage, over-current and short-cicuit protection

Description:

The MA860H is a high performance microstepping drive based on pure-sinusoidal current control technology. Owing to the above technology and the self-adjustment technology (self-adjust current control parameters) according to different motors, the driven motors can run with smaller noise, lower heating, smoother movement and have better performances at higher speed than most of the drives on the markets. It is suitable for driving 2-phase and 4-phase hybrid stepping motors.

Specification:

Parameters	MA860H
	Min	Typical	Max	Unit
Output current	1.8	-	7.2 (5.1 RMS)	A
Supply voltage	36	48	80	VAC
	50	68	110	VDC
Logic signal current	7	10	16	mA
Pulse input frequency	0	-	300	KHz
Isolation resistance	500			MO

Connector P1 Configurations

Pin Function	Details
PUL+	Pulse signal: In single pulse (pulse/direction) mode, this input represents pulse signal, active at each rising or falling edge (set by inside jumper J3); 4-5V when PUL-HIGH, 0-0.5V when PUL-LOW. In double pulse mode (pulse/pulse) , this input represents clockwise (CW) pulse, active at high level or low level (set by inside jumper J3). For reliable response, pulse width should be longer than 1.5μs. Series connect resistors for current-limiting when +12V or +24V used.
PUL-
DIR+	DIR signal: In single-pulse mode, this signal has low/high voltage levels, representing two directions of motor rotation; in double-pulse mode (set by inside jumper J1), this signal is counter-clock (CCW) pulse, active at high level or low level (set by inside jumper J3). For reliable motion response, DIR signal should be ahead of PUL signal by 5μs at least. 4-5V when DIR-HIGH, 0-0.5V when DIR-LOW. Please note that motion direction is also related to motor-driver wiring match. Exchanging the connection of two wires for a coil to the driver will reverse motion direction.
DIR-
ENA+	Enable signal: This signal is used for enabling/disabling the drive. High level (NPN control signal, PNP and Differential control signals are on the contrary, namely Low level for enabling.) for enabling the drive and low level for disabling the drive. Usually leftUNCONNECTED (ENABLED).
ENA-

Connector P2 Configurations

Pin Function	Details
VDC	Power supply, 36~80 VAC or 50~110 VDC, Including voltage fluctuation and EMF voltage.
GND	Power Ground.
A+, A-	Motor Phase A
B+, B-	Motor Phase B

Typical Connections

Current Settings

The first three bits (SW1, 2, 3) of the DIP switch are used to set the dynamic current. Select a setting closest to your motor's required current.

REF Current	Peak Current	SW1	SW2	SW3
2.00A	2.40A	on	on	on
2.57A	3.08A	off	on	on
3.14A	3.77A	on	off	on
3.71A	4.45A	off	off	on
4.28A	5.14A	on	on	off
4.86A	5.83A	off	on	off
5.43A	6.52A	on	off	off
6.00A	7.20A	off	off	off

Microstep Resolution Selection

Dimension

Application:

Suitable for a wide range of stepping motors, from NEMA size 17 to 43. It can be used in various kinds of machines, such as X-Y tables, labeling machines, laser cutters, engraving machines, pick-place devices, and so on. Particularly adapt to the applications desired with low noise, low heating, high speed and high precision.