Applied-motion BLuAC5-Q Manual do Utilizador descarregar pdf (Página 28)

BLuAC5 S/Q Hardware manual

920-0049 Rev. C

12/8/2014

Analog Inputs

The BLuAC5 has two ±10 Volt analog inputs that can be used individually as single ended

inputs or differentially as one input. Analog inputs are used by the servo drive for a number of

dedicated purposes for controlling the servo or they can be used as general purpose analog

signals.

Three dedicated purposes:

• Analog Torque Mode

• Analog Velocity Mode

• Analog Positioning Mode.

Each of these three modes uses the analog input(s) for “commanding” the servo drive.

An analog signal can be also used to stop a “Feed to Sensor” move or to trigger a “Wait on In-

put”. The analog inputs can be read as variables in the SCL and Q languages and then used

to set nearly any drive parameter.

Basic Speciﬁcations:

• Each input can accept ±10 volts.

• The inputs have an impedance of 20K ohms.

• Because of the nature of the design, will

exhibit a 1.4V offset when not driven by an

analog source.

• Low source impedance is important for mini-

mizing analog errors, 100 ohms or lower is

recommended.

WARNING - Analog inputs must be used with care, they are not optically isolated and may not oper-

ate properly or could be damaged when system grounds are not compatible.

IN/OUT 1

GND

20k ohms

A_CH1

A_CH2

AIN+

AIN-

20k ohms

+10V to -10V

signal

signal return

IN/OUT 1

GND

AIN+

Single Ended Input

IN/OUT 1

GND/Shield

GND

±10V

AIN+

Differential Input

±10V

AIN-

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 45 46

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