US Free Ship 3Axis Stepper Motor Nema23 270oz-in 3A single shaft Driver DM542A

Description

This item includes:
3 pcs Nema 23 stepper motor 272 oz.in bipolar 23HS7430/8430 with single shaft
3 pcs Stepper motor driver DM542A, PEAK 4.2A, 128 micsteps
1 pc Power supply 350W-36vdc/9.7A
1 pc parallel cable & 1 pc breakout board
1. Nema 23 stepper motor
Model
Step angel (°)
Motor Length L(mm)
Rate Voltage (V)
Rate Current (A)
Phase
Resistance (Ω)
Phase Inductance (mH)
Holding Torque (oz.in)
Lead Wire (NO.)
Rotor Inertia (g.cm2)
Detent Torque (kg.cm)
Motor Weight (kg)
23HS8430/23HS7430
1.8
76
3
3
1
1.8
270
4
480
0.68
1.00
2. nema 23 step stepper motor driver DM542A:
Introduction:
DM542A is a type of two-phase hybrid stepping motor driver, The drive voltage of which 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 similar to the circuit of servo control which enables the motor run smoothly almost without noise and vibration. Hording torque when DM542A 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:
·
High performance, low price
·
Average current control, 2-phase sinusoidal output current drive
·
Supply voltage from 18VDC to 50VDC
·
Opto-isolated signal I/O
·
Overvoltage, under voltage, overcorrect, phase short circuit protection
·
15 channels subdivision and automatic idle-current reduction
·
8 channels output phase current setting
·
Offline command input terminal
·
Motor torque is related with speed, but not related with step/revolution
·
High start speed
·
High hording torque under high speed
1.     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 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)
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, all control 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 output
Note: When VCC=5V, R=0
When VCC=12V, R=1K, ＞1/8W
When VCC=24V, R=2K,＞1/8W
R 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:
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
10000
20000
25000
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.
4. Power connections
(1)+V、GND：Power Supply.
+V: Power supply, 16~50 VDC, Including voltage fluctuation and EMF voltage. The max current is 5A.
(2) A+  A-  B+  B-：Connecting 2 phase stepper motors.
The driver & 2-phase hybrid stepping motor use four-wire connection, the motor can be connected in parallel & series bipolar. As for bipolar connection, it is higher performance with high-speed, but the current of driver is larger (it is 1.73 times more than the motor’s winding current).
Connecting in series, the driver’s current is equal to the motor winding one.
5. Fixing
There should be 20mm of space, it can’t be placed next to other heating devices, to avoid dust, oil mist, corrosive gas, humidity and strong vibration places.
(Unit=mm)
6. Troubleshooting
1, the status on light’s indication
RUN: green, normal work light.
ERR: red, failure light, the motor with phase short-circuit, overvoltage and under-voltage protection.
2 Troubles
Alarm indicator
Causes
Measures
LED off turn
Wrong connection for power
Check wiring of power
Low-voltages for power
Enlarge voltage of power
Motor doesn’t run, without holding torque
Wrong connection of stepper motor
Correct its wiring
RESET signal is  effective when offline
Make RESET ineffective
Motor doesn’t run, but
maintains
holding torque
Without input pulse signal
Adjust PMW & signal level
Motor runs wrong direction
Wrong wires’ connection
Change connection for any of 2 wires
Wrong input direction signal
Change direction setting
Motor’s holding torque is too small
Too small relative to current setting
Correct rated current setting
Acceleration is too fast
Reduce the acceleration
Motor stalls
Rule out mechanical failure
Driver does not match with the motor
Change a suitable driver
7. Driver Wiring
A complete stepper motor control system should contain stepper drives, DC power supply and controller (pulse source). The following is a typical system wiring diagram.
3. Power supply:
350W-36V.
The power of this power supply is 350Watts, and the output voltage/current is 36VDC/9.7A.
4. Breakout board
Description:
• Built in DB25 male connector.
• DB25 Output Pin:P1,P2,P3,P4,P5,P6,P7,P8,P9,P14,P16,P17.
• DB25 Input Pin: P10,P11,P12,P13,P15.
• DB25 GND Pin: P18-P25.
• Power supply: +5V DC.
• Built in C-class Optical-coupler.
• High quality with Surface-mount Tech
General in the software
P2 P3 is set to X-axis for the X-axis pulse
P4 P5 is set to Y-axis, Y axis pulse
P6 P7 is set to Z-axis Z-axis pulse
The other can be set to A B C axis
A-axis pulse P8 P9 is set as the A axis
P14 is set to B-axis B-axis pulse P1
P16 P17 is set to C-axis, C axis pulse
Can also be set to the spindle control signal \ electrical permit
Input interface for the P10 P11 P12 P13 P15
On Nov-13-19 at 03:40:32 PST, seller added the following information: