Motor control demonstration

UM0428

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Table 6.

Jumpers settings

Name

Selection

Description

W1

Between 1-2

If sensorless control is set (see W2), it connects motor phase A to MC connector through

R2-R3-R5-R6 feedback resistors. In this case the microcontroller internal comparator is

used to detect the BEMF.

Between 2-3

The external comparator U2A is used to detect the BEMF. If sensorless control is set (see

W2), it connects the output of U2A to MC connector.

Not present

Use this setting for sensored control (Tacho, Encoder, Hall)

W2

Between 1-2

It is used for sensorless control. Connects motor phase feedback signal to MC connector.

Between 2-3

It is used for sensored control. Connects the Hall sensor signal or Encoder signal to MC

connector.

W3

Present

3-Shunt setting. It is used to set the correct values for the current amplifier U1B.

Not present

1-Shunt setting. It is used to set the correct values for the current amplifier U1B.

W4

Between 1-2

It is used for sensorless control. Connects motor phase feedback signal to MC connector.

Between 2-3

It is used for sensored control. Connects the Hall sensor signal or Encoder signal to MC

connector.

W5

Not present

1-Shunt setting. It is used to set the correct values for the current amplifier U1B.

Between 2-3

3-Shunt setting. It is used to set the correct values for the current amplifier U1B.

W6

Between 1-2

Sets the voltage supplied to Hall / Encoder Sensors to Vdd_Micro values (see W13).

Between 2-3

Sets the voltage supplied to Hall / Encoder Sensors to +5 V.

W7

Between 1-2

If sensorless control is set (see W4), it connects motor phase B to MC connector through

R29-R30-R32-R33 feedback resistors. In this case the microcontroller internal comparator

is used to detect the BEMF.

Between 2-3

The external comparator U2B is used to detect the BEMF. If sensorless control is set (see

W4), it connects the output of U2B to MC connector.

Not present

Use this setting for sensored control (Tacho, Encoder, Hall)

W8

Present

3-Shunt setting. It is used to set the correct values for the current amplifier U1B.

Not present

1-Shunt setting. It is used to set the correct values for the current amplifier U1B.

W9

Between 1-2

It is used for sensorless control. Connects motor phase feedback signal to MC connector.

Between 2-3

It is used for sensored control. Connects the Hall sensor signal or Encoder signal to MC

connector.

W10

Between 1-2

It selects the voltage reference for the comparator U2A, U2B and U2C to detect zero

crossing. The reference VBus/2 is reconstructed using voltage divider from VBus.

Between 3-4

It selects the voltage reference for the comparator U2A, U2B and U2C to detect zero

crossing. The reference VBus/2 is reconstructed using Phase A, Phase B and Phase C

values.

Between 5-6

It selects the voltage reference for the comparator U2A, U2B and U2C to detect zero

crossing. The reference is set using PWM Vref coming from MC connector.