Introduction:
DQ542MA 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 smiliar
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
Electrical specification:
|
Input voltage |
18-50VDC |
|
Input current |
£¼ 4A |
|
Output current |
1.0A¡«4.2A |
|
Consumption |
Consumption£º80W£» Internal
Insurance£º6A |
|
Temperature |
Working Temperature -10¡«45¡æ£»
Stocking temperature -40¡æ¡«70¡æ |
|
Humidity |
Not condensation, no water droplets |
|
gas |
Prohibition of combustible gases and conductive
dust |
|
weight |
300G |
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, £¾1/8W
When
VCC=24V, R=2K,£¾1/8W
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. 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 £ºDC18-50VDC |
5. Mechanical
Specification:
To have 20mm of space around, cannot be
placed next to other heating devices. Whats more, avoid dust,
oil mist, corrosive gas, heavy humidity and high
vibration.
6. Adjustment of
troubleshooting
1) , the status on light¡¯s
indication
PWR: green, normal work light.
ALM: red, failure
light, the motor with phase short-circuit, overvoltage and
under-voltage protection.
2) Troubles
|
Alarm indicator
|
Reasons |
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
8.
APPENDIX
Twelve Month Limited
Warranty
WANTAI MOTOR. warrants its
products against defects in materials and workmanship for a
period of 12 months from shipment out of factory .During the
warranty period, WANTAI MOTOR will either ,at is option, repair
or replace products which proved to be defective.
Exclusions
The above warranty does not
extend to any product damaged by reasons of improper or inadequate
handlings by customer, improper or inadequate customer wirings,
unauthorized modification or misuse .or operation beyond the
electrical specifications of the product and/or operation beyond
environmental specifications for the product.
Obtaining Warranty
Service
To obtain warranty service, a returned
material authorization number(RMA)must be obtained from customer
service at e-mail: sales@wantmotor.com.
Before returning product for service.
Customer shall prepay shipping charges for products returned
to WANTAI MOTOR for warranty service, andWANTAI MOTOR
shall pay for return of products to customer.
Warranty
Limitations
WANTAI MOTOR makes no other
warranty, either expressed or implied, with respect to the
product. WANTAI MOTOR specifically disclaims the implied
warranties of merchantability and fitness for a particular purpose.
Some jurisdictions do not allow limitations on how long and implied
warranty lasts .so the above limitation or exclusion may
to apply to you, however, any implied warranty of
merchantability or fitness is limited to the12-month duration of
this written warranty.
| 
