Getting started
UM1996
8/29
DocID028716 Rev 2
When using a different motor rated greater than 12 V, keep jumper J9 on the
power board open before applying power-on voltage at J1 to avoid damaging the
Nucleo board. To supply the STM32-NUCLEO via usb, connect jumper JP5
between PIN 1 and PIN2. For further details on Nucleo settings, refer to UM1724
at
2.2.1
Hardware settings
By default, the X-NUCLEO-IHM08M1 provides the power supply voltage for STM32 Nucleo
board (+5V on E5V) independently through the power voltage applied at the J1 connector.
Removing resistor R170 on the expansion board, you can disconnect internal voltage
regulation and select jumper J9 to supply the STM32 Nucleo board directly from J1
connector (see
) if, for instance, higher conversion efficiency is
required. For this last configuration please read the recommendation below.
Table 1: Jumper settings
Jumper
Permitted Configurations
Default
Condition
JP1
Selection for pull-up insertion (BIAS) in current sensing circuit
OPEN
JP2
Selection for operational amplifier gain modification in current sensing
circuit
OPEN
JP3
Selection for enabling pull-up in Hall/Encoder detection circuit
CLOSED
J9
Selection to supply the STM32 Nucleo board through the X-NUCLEO-
IHM08M1.
Note:
You should remove jumper J9 before power-on at J1.
Do not
provide more than 12 V DC on J1 when J9 is closed or you risk
damaging the STM32 Nucleo board. Jumper JP5 on the STM32 Nucleo
board must be connected between PIN 2 and 3 to enable external
powering of the STM32 Nucleo board.
OPEN
J5
Selection for single/three shunt configuration. It is set to single shunt by
default
1Sh
J6
Selection for single/three shunt configuration. It is set to single shunt by
default
1Sh
J7
Debug connector for DAC. It is available for probe connection
OPEN
Table 2: Screw terminals
Screw
Terminal
Function
J1
Motor power supply input (8 V to 48 V)
J16
3-phase motor connector