US ] Stepper motor driver for Nema 23 18-50vdc input 4.2A peak DQ542MA wantai

Description

The CNC kit shipped from EU&US warehouse, 3-7 days will be delivery, no tariff for EU members and USA locals.
This items including:
3 PC motor driver DQ542MA with 4.2A peak current, 18-50VDC, 128 Microsteps
Introduction:
DQ542MA is a type
of two-phase hybrid stepping motor driver, the drive voltage of it is from 18VDC to 50VDC. It is designed for use with 2-phase hybrid stepper motor of all kinds with 42mm to 86mm outside diameter and less than 4.0A phase current. This circuit that it adopts is smiliar to the circuit of servo control which enables the motor run smoothly almost without noise and vibration. Holding torque when DQ542MA 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:
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High performance, low price
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Average current control, 2-phase sinusoidal output current drive
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Supply voltage from 18VDC to 50VDC
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Opto-isolated signal I/O
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Overvoltage, under voltage, overcurrent, phase short circuit protectio
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15 channels subdivision and automatic idle-current reductio
n
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8 channels output phase current setting
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Offline command input termina
l
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Motor torque is related to speed, but not related to step/revolution
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High start speed
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High hording torque under high spe
ed
Electrical specification:
Input voltage
18-50VDC
Input current
＜
4A
Output current
1.0A
～
4.2A
Consumption
Consumption
：
80W
；
Internal Insurance
：
6A
Temperature
Working Temperature
-10
～
45
℃
；
Stocking temperature
-40
℃
～
70
℃
Humidity
No condensation, no water droplets
gas
Prohibition of combustible gases and conductive dust
weight
300G
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 pin
ENBL+
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)
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:
SW5
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
SW6
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
ON
ON
OFF
OFF
SW7
ON
ON
ON
OFF
OFF
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
OFF
SW8
ON
ON
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
PULSE/REV
400
800
1600
3200
6400
12800
25600
1000
2000
4000
5000
8000
2) Standstill current setting
SW4 is used for this purpose. OFF meaning that the standstill current is set to be half of the selected dynamic current 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 setting
Closest to your motor’s required current
Output current (A)
SW1
SW2
SW3
PEAK
RMS
ON
ON
ON
1.00
0.71
OFF
ON
ON
1.46
1.04
ON
OFF
ON
1.91
1.36
OFF
OFF
ON
2.37
1.69
ON
ON
OFF
2.84
2.03
OFF
ON
OFF
3.31
2.36
ON
OFF
OFF
3.76
2.69
OFF
OFF
OFF
4.20
3.00
4)
Semi-flow  function:
Semi-flow function is that there is not step pulse after 500 ms, the driver output current automatically reduced to 70% of rated output current, which is used to prevent motor heat.
Pins of motor & power:
Motor and power pins
1
A+
Motors wiring
2
A-
3
B+
4
B-
5,6
DC+ DC-
Power supply
Power supply
：
DC18-50VDC