Baldor BXII installation manual Analog I/O, 4.5.1Analog inputs

4.5 Analog I/O

The NextMove BXII provides:

HEight 12-bit resolution analog inputs, available on connector X3.

HFour 14-bit resolution analog outputs, available on connector X7. Sections 4.5.1 to 4.5.2 describe each analog input and output.

4.5.1Analog inputs - X3

Location	Connector X6
	(Mating connector: Weidmüller BL 3.5/10, 3.5mm pitch)
Pin	Name	MintMT keyword / description
1	AIN0	ADC.0
2	AIN1	ADC.1
3	AIN2	ADC.2
4	AIN3	ADC.3
5	AIN4	ADC.4
6	AIN5	ADC.5
7	AIN6	ADC.6
8	AIN7	ADC.7
9	AGND	Analog ground
10	Shield	Shield connection

Description

Single ended or differential inputs

Voltage range: software selectable 0-5V, ±2.5V, ±10V

Resolution: 12-bit with sign (accuracy ±4.9mV @ ±10V input)

Input impedance: >20kΩ

Sampling interval: 222µs - 2ms

The Mint keyword ADCMODE can be used to setup various configurations for the analog inputs.

HSingle ended (ADCMODE 0): This is the default configuration. Each input behaves as a single ended, unipolar input with an input range of 0-5V. The input’s 0V connection is connected to pin 9, AGND.

HSingle ended, bipolar (ADCMODE 2): Each input is a single ended, bi-polar input with an input range of ±5V. The input’s 0V connection is connected to pin 9, AGND.

HPseudo differential (ADCMODE 1): Inputs are used in pairs (0 and 1, 2 and 3, 4 and 5, 6 and 7) to create four differential inputs. Within each pair, the odd numbered input is the negative input, and the even numbered input is the positive input. The input range is 0 - 5V.

4-4 Input / Output MN1904