Baldor MN1274 06/2001 installation manual AUXDAC.0 AUXDAC.1, AOUT0 and AOUT1 analog outputs

3.2.5 Analog Outputs, Bipolar - X5

Location	Connector X5
Pins	19		7
Name	AOUT0		AOUT1
Mint keyword	AUXDAC.0		AUXDAC.1
Description	Two independently controlled outputs.
	Output range: ±10VDC.
	Resolution:	8-bit
	Output current: ±4mA maximum
	Update interval: immediate, using Mint commands

1 14

13 25

The two analog 8-bit outputs AOUT0 and AOUT1 are not isolated and are primarily intended for system debugging. Output voltages in the range of ±10V are achievable with a DC accuracy of better than 3%. They are derived from a high-frequency PWM pulse train from the main processor, which is subsequently filtered. These signals are buffered by an operational amplifier in the MintDrive and are capable of sinking or sourcing up to ±4mA. The outputs are protected by fast Schottky diodes against excessively high transitional voltages of either polarity.

Output 0

Output 1

GND

X5

19

7

20

AOUT0 (AUXDAC.0)

AOUT1 (AUXDAC.1)

Figure 14 - AOUT0 and AOUT1 analog outputs

CAUTION: Following power-up or a system reset, both outputs will initially be set at approximately +10V. This condition will remain, for a short period of time during the software initialization process.

33