02.06.2022 V1
5. DRIVER VOLTAGE AND CURRENT SELECTION
Selecting Supply Voltage:
Higher supply voltage can increase motor torque at higher speeds. However, higher voltage
may cause more motor vibration at lower speeds. It may also cause over-voltage protection
and even damage the drive. Therefore, it is suggested to choose only sufficiently high supply
voltage for intended applications.
Setting Output Current:
For a given motor, higher drive current will improve motor output torque, but at the same time
cause more heating in the motor and driver. Therefore, output current is generally set to be such
that the motor will not overheat during lengthy operation.
Since parallel and serial connections of motor coils will significantly change resulting inductance
and resistance, it is important to set driver output current depending on motor phase current,
motor leads and connection method.
6.
Switch Settings
Current Setting (Peak)
SW1, 2, 3 are used to set the operating current during motion (dynamic current).
SW4 Off, sets stand still current to 50% of dynamic current value.
Current
SW1
SW2
SW3
2.8A
On
On
On
3.5A
Off
On
On
4.5A
On
Off
On
5.3A
Off
Off
On
5.9A
On
On
Off
6.7A
Off
On
Off
7.4A
On
Off
Off
8.4A
Off
Off
Off
Microstepping Resolution Selection
Microstep Resolution is set by SW5, 6, 7 and 8 as shown in the following table:
Step/Rev 1.8
Motor
SW5
SW6
SW7
SW8
400
On
On
On
On
800
Off
On
On
On
1600
On
Off
On
On
3200
Off
Off
On
On
6400
On
On
Off
On
12800
Off
On
Off
On
25600
On
Off
Off
On
51200
Off
Off
Off
On
1000
On
On
On
Off
2000
Off
On
On
Off
4000
On
Off
On
Off
5000
Off
Off
On
Off
8000
On
On
Off
Off
10000
Off
On
Off
Off
20000
On
Off
Off
Off
40000
Off
Off
Off
Off
Please Note
:
Power must be removed before changing settings and the re-applied.
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