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This item includes: 2. Stepper motor driver DM860A 3.Power supply: The power of this power supply is 350Watts, and the output voltage/current is 60V.1. Nema 34 stepper motor
Introduction:
DM860A is a type of two-phase hybrid stepping motor driver, The drive
voltage of which is from 24VDC to 80VDC. It is designed for use with
2-phase hybrid stepper motor of all kinds with 57mm to 110mm outside
diameter and less than 8.0A phase current. This circuit that it adopts
is similar to the circuit of servo control which enables the motor run
smoothly almost without noise and vibration. Hording torque when DM860A
run under high speed is also significantly higher than the other
two-phase driver, what’s more, the positioning accuracy is also higher.
It is widely used in middle and big size numerical control devices such
as curving machine, CNC machine, and computer embroider machine, packing
machines and so on.Features:l High performance, low pricel Average current control, 2-phase sinusoidal output current drivel Supply voltage from 24VDC to 80VDCl Opto-isolated signal I/Ol Overvoltage, under voltage, overcorrect, phase short circuit protectionl 14 channels subdivision and automatic idle-current reductionl 8 channels output phase current settingl Offline command input terminall Motor torque is related with speed, but not related with step/revolutionl High start speedl High hording torque under high speedElectrical specification:Input voltage24-80VDCInput current＜ 6AOutput current2.8A～7.8AConsumptionConsumption：80W； Internal Insurance：10ATemperatureWorking Temperature -10～45℃；Stocking temperature -40℃～70℃HumidityNo condensation, no water dropletsgasProhibition of combustible gases and conductive dustweight500G Pins assignments and description: 1) Connector Pins Configurations Pin Function Details PUL +,PUL- Pulse signal, PUL+ is the positive end of pulses input pin PUL- is the negative end of pulse input pin DIR+,DIR- DIR signal: DIR+ is the positive end of direction input pin DIR- is the negative end of direction input pinENBL+ Enable
signal: ENBL+ is the positive end of direction input pin. This signal
is used for enabling/disabling the driver. High level for enabling the
driver and low level for disabling the driver. ENBL- ENBL- is the negative end of direction input pin. Usually left unconnected (enabled) 2) Pins wiring diagram:PC’s control signals can be active in high and low electrical level. When the high electrical level is active,all control negative signals will be connected together to GND. When low electrical level is active, allcontrol positive signals will be connected together to public port. Now give two examples( Open collector&PNP), please check them: Fig 1. Input port circuit (Yang connection) PC open connector output Fig. 2 Input port circuit ( Yin connection) PC PNP outputNote: When VCC=5V, R=0 When VCC=12V, R=1K, ＞1/8W When VCC=24V, R=2K,＞1/8WR must connect in the control signal part . 3.Function choice ( Using DIP pins to achieve this function) 1) Micro step resolution is set by SW 5,6,7,8 of the DIP switch as shown in the following table: SW5ONOFFONOFFONOFFONOFFONOFFONOFFONOFFSW6ONONOFFOFFONONOFFOFFONONOFFOFFONONSW7ONONONONOFFOFFOFFOFFONONONONOFFOFFSW8ONONONONONONONONOFFOFFOFFOFFOFFOFFPULSE/REV400800160032006400128002560051200100020005000100002500050000 2) Standstill current settingSW4 is used for this purpose. OFF meaning that the standstill current is set to be half of the selected dynamiccurrent and ON meaning that standstill is set to be the same as the selected dynamic current. 3) Output current setting:The first three bits (SW 1, 2, 3)of the DIP switch are used to set the dynamic current. Select a settingClosest to your motor’s required current Output current (A)SW1SW2SW3PEAKRMSONONON2.802.00OFFONON3.502.50ONOFFON4.203.00OFFOFFON4.903.50ONONOFF5.704.00OFFONOFF6.404.60ONOFFOFF7.005.00OFFOFFOFF7.805.60 4) Semi-flow function:Semi-flow function is that there is not step pulse after200 ms, the driver output current automaticallyreduced to 40% of rated output current, which is used to prevent motor heat. 4. Pins of motor & power: Motor and power pins 1A+Motors wiring 2A-3B+4B-5,6DC+ DC-Power supply Power supply ：DC24-80VDCThe peak input current can not up to 6A4. Breakout Board:
