RUMBA32 V1.1 User Manual – Rev A
Page 21
14
C
ONFIGURATION
J
UMPERS
RUMBA32 features two configuration jumpers on the rear of the board that can be modified to
customise functionality.
14.1
STEPPER_DRIVER_LOGIC
J
UMPER
The STEPPER_DRIVER_LOGIC jumper (Figure 16) selects the logic voltage supplied to all stepper driver
sockets. By default, it is configured so that 3.3V is supplied to the stepper drivers. All stepper drivers
checked should work correctly with 3.3V. However, if there is a requirement for stepper drivers to be
supplied with 5V, the track between the centre and 3V pad should be cut, and a solder joint placed
over the 5V and centre pad.
Figure 16: STEPPER_DRIVER_LOGIC jumper
14.2
ENDSTOP_VOLTAGE
J
UMPER
The ENDSTOP_VOLTAGE jumper (Figure 17) selects the voltage supplied via all endstop connectors.
By default, it is configured so that 3.3V is supplied via the endstop connectors. This should work
correctly for most types of endstop, however it is possible some special endstops may require 5V.
If there is a requirement for endstops to be supplied with 5V, the track between the centre and 3V
pad should be cut, and a solder joint placed over the 5V and centre pad.
Figure 17: ENDSTOP_VOLTAGE jumper
