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PDF KL-8056D Data sheet ( Hoja de datos )
| Número de pieza | KL-8056D | |
| Descripción | Fully Digital Stepping Driver | |
| Fabricantes | ETC | |
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Contents
KL-8056D
Fully Digital Stepping Driver
Attention: Please read this manual carefully before using the
driver!
I
Table of Contents
1. Introduction, Features and
Applications....................................................................1
Introduction..........................................................................................
.................1
Features
..............................................................................................................
...1
Applications...........................................................................................................1
2. Specifications ............................................................................................................2
Electrical Specifications ......................................................................................2
Mechanical Specifications.....................................................................................2
Elimination of Heat...............................................................................................2
Operating Environment and other Specifications..................................................3
3. Pin Assignment and Description ...............................................................................3
Connector P1 Configurations................................................................................3
Selecting Active Pulse Edge and Control Signal Mode.........................................4
Connector P2 Configurations................................................................................4
4. Control Signal Connector (P1) Interface...................................................................4
5. Connecting the Motor................................................................................................5
Connections to 4-lead Motors ...............................................................................5
Connections to 6-lead Motors ...............................................................................5
Half Coil Configurations...............................................................................5
Full Coil Configurations................................................................................6
Connections to 8-lead Motors ...............................................................................6
Series Connections ........................................................................................6
Parallel Connections......................................................................................7
6. Power Supply Selection.............................................................................................7
Regulated or Unregulated Power Supply ..............................................................7
Multiple Drivers....................................................................................................8
Selecting Supply Voltage.......................................................................................8
7. Selecting Microstep Resolution and Driver Output Current .....................................8
Microstep Resolution Selection.............................................................................8
Current Settings.....................................................................................................9
Dynamic current setting ..............................................................................10
Standstill current setting..............................................................................10
8. Wiring Notes............................................................................................................10
9. Typical Connection..................................................................................................11
10. Sequence Chart of Control Signals........................................................................11
11. Protection Functions..............................................................................................12
Over-current Protection...............................................................................12
Over-voltage Protection...............................................................................12
1 page  
Figure 5: 6-lead motor half coil (higher speed) connections
Full Coil Configurations
The full coil configuration on a six lead motor should be used in applications where
higher torque at lower speeds is desired. This configuration is also referred to as full
copper. In full coil mode, the motors should be run at only 70% of their rated current
to prevent over heating.
Figure 6: 6-lead motor full coil (higher torque) connections
Connections to 8-lead Motors
8 lead motors offer a high degree of flexibility to the system designer in that they may
be connected in series or parallel, thus satisfying a wide range of applications.
Series Connections
A series motor configuration would typically be used in applications where a higher
torque at lower speeds is required. Because this configuration has the most
inductance, the performance will start to degrade at higher speeds. In series mode, the
motors should also be run at only 70% of their rated current to prevent over heating.
Figure 7: 8-lead motor series connections
Parallel Connections
An 8 lead motor in a parallel configuration offers a more stable, but lower torque at
lower speeds. But because of the lower inductance, there will be higher torque at
higher speeds. Multiply the per phase (or unipolar) current rating by 1.96, or the
bipolar current rating by 1.4, to determine the peak output current.
Figure 8: 8-lead motor parallel connections
NEVER disconnect or connect the motor while the power source is energized.
6. Power Supply Selection
The KL-8056D can match medium and small size stepping motors (from NEMA frame size 17 to 34)
made by Keling or other motor manufactures around the world. To achieve good driving performances, it
is important to select supply voltage and output current properly. Generally speaking, supply voltage
determines the high speed performance of the motor, while output current determines the output torque
of the driven motor (particularly at lower speed). Higher supply voltage will allow higher motor speed to
be achieved, at the price of more noise and heating. If the motion speed requirement is low, it’s better to
use lower supply voltage to decrease noise, heating and improve reliability.
Regulated or Unregulated Power Supply
Both regulated and unregulated power supplies can be used to supply the driver. However, unregulated
power supplies are preferred due to their ability to withstand current surge. If regulated power supplies
(such as most switching supplies.) are indeed used, it is important to have large current output rating to
avoid problems like current clamp, for example using 4A supply for 3A motor-driver operation. On the
other hand, if unregulated supply is used, one may use a power supply of lower current rating than that of
motor (typically 50%～70% of motor current). The reason is that the driver draws current from the
power supply capacitor of the unregulated supply only during the ON duration of the PWM cycle, but not
during the OFF duration. Therefore, the average current withdrawn from power supply is considerably
less than motor current. For example, two 3A motors can be well supplied by one power supply of 4A
rating.
Multiple Drivers
It is recommended to have multiple drivers to share one power supply to reduce cost, if the supply has
enough capacity. To avoid cross interference, DO NOT daisy-chain the power supply input pins of the
drivers. Instead, please connect them to power supply separately.
Selecting Supply Voltage
The power MOSFETS inside the KL-8056D can actually operate within +20 ~ +80VDC, including
power input fluctuation and back EMF voltage generated by motor coils during motor shaft deceleration.
Higher supply voltage can increase motor torque at higher speeds, thus helpful for avoiding losing steps.
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet KL-8056D.PDF ] | |
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