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Driver M860Ah

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Introduction :

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 in the markets. It is suitable for driving 2-phase and 4-phase hybrid stepping motors.

 Specifications :
Parameters M860
Min Typical Max Unit
Output current 1.8 - 7.2 (5.1 RMS) A
Supply voltage +24 +68 +80 VDC
Logic signal current 7 10 16 mA
Pulse input frequency 0 - 300 KHz
Isolation resistance 500     M?

Connector P1 Configuration:
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 1.5?s. Series connect resistors for current-limiting when +12V or +24V used.
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 5?s 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.
ENA+ Enable signal: This signal is used for enabling/disabling the driver. High level (NPN control signal, PNP and Differential control signals are on the contrary, namely Low level for enabling.) for enabling the driver and low level for disabling the driver. Usually leftUNCONNECTED (ENABLED).
Connector P2 Configuration:
Pin Function Details
VDC Power supply, 24~80 VDC, Including voltage fluctuation and EMF voltage.
GND Power Ground.
A+, A- Motor Phase A
B+, B- Motor Phase B
Selecting Microstep Resolution and Drive Output Current:
 Microstep resolution is set by SW5, 6, 7, 8 of the DIP switchas shown in the following table:
Microstep Steps/rev.(for 1.8°motor) SW5 SW6 SW7 SW8
2 400 ON ON ON ON
4 800 OFF ON ON ON
8 1600 ON OFF ON ON
16 3200 OFF OFF ON ON
32 6400 ON ON OFF ON
64 12800 OFF ON OFF ON
128 25600 ON OFF OFF ON
256 51200 OFF OFF OFF ON
5 1000 ON ON ON OFF
10 2000 OFF ON ON OFF
20 4000 ON OFF ON OFF
25 5000 OFF OFF ON OFF
40 8000 ON ON OFF OFF
50 10000 OFF ON OFF OFF
100 20000 ON OFF OFF OFF
200 40000 OFF OFF OFF OFF
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
    • High performance, cost-effective
    • 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