BLDC50/100
User Manual
3.5.2 Dip Switches
At the right side of BLD drive there are four switches. If users don’t
want use external power for the IO control, they can switch SW1
“ON” to choose the internal 5V power supply to IO control and “OFF”
means external power supply. When SW1 is “ON”, user should chose
common anode or common cathode control by SW2. SW2 is “ON”
that means user chose common anode IO control. SW2 is “OFF” that
means user chose common cathode IO control.
For RS485 version, SW4 is “ON” that means there is a 120 ohm termination resistor across the
TX+ and TX- terminals. SW3 is reserved.
SW1
SW2
SW3
SW4
BLD
OFF OFF OFF OFF
The four switches on the right side of the BLD drive can be adjusted using a device that is
capable of fitting between the right side grating. Removing the outside layer is also possible but
not recommended due to sensitive nature of the drive electronics.
Lin Engineering
BLDC 50/100 Driver Manual
Page 19
Version 1.0
01/29/2020