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Tel: (86)755-26434369 10 Website: www.leadshine.com
Install Encoder and Hall sensor
Encoder and Hall sensor provide information of the motor shaft position and rotor
magnetic field orientation. The output signals from the Hall sensor have absolute
phase information which is used at motor startup. If your motor has no encoder and
hall sensor, you must have an encoder (more than 200 lines) and hall sensor properly
mounted on the motor before you start.
There are some modules which can output signals both for encoder and hall sensor.
Please assemble the selected module according to its factory manual. Leadshine also
offer BLM series DC brushless servo motors for matching the ACS606. Please use
shielded cables and separate encoder signal cable from interference sources, such as
motor wires and power wires at least 5 cm.
Prepare Power Supply
Regulated or Unregulated Power Supply
Both regulated and unregulated power supplies can be used to supply the Drive.
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-drive 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 Drive 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 Therefore, the average current withdrawn from power supply is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.
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Tel: (86)755-26434369 11 Website: www.leadshine.com
Selecting Supply Voltage
The ACS606 can actually operate within +18 ~ +80VDC, including power input
fluctuation and back EMF voltage generated by motor coils during motor shaft
deceleration. The rated voltage of the motor is an important parameter when selecting
supply voltage. Generally speaking, do not use a power supply voltage more than 5
volts of the rated voltage of the motor. Higher voltage may cause bigger motor
vibration at lower speed, and it may also cause over-voltage protection or even drive
damage.
Prepare Controller
Prepare a controller with pulse and direction signals. However, the ACS606 has a
built-in motion controller for self-test and Servo Tuning. The built-in motion controller
can generate control signal with trapezoidal velocity profile.
System Connections and Noise Prevention
After finishing the above steps, you can connect your servo system. Before you start,
make sure that the power is off. Connect your system according to previous
connection diagrams, and pay attention to the following tips when wiring.
Wire Gauge
The smaller wire diameter (lower gauge), the higher impedance. Higher impedance
wire will broadcast more noise than lower impedance wire. Therefore, when selecting
the wire gauge, it is preferable to select lower gauge (i.e. larger diameter) wire. This
recommendation becomes more critical as the cable length increases. Use the following
table to select the appropriate wire size to use in your application.
Current (A) Minimum wire size (AWG)
10 #20
15 #18
20 #16
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