User manual

Analog I/O expansion module Berghof Automationstechnik

22 2D0172002ZD00.DOC 2VF100051FE01.doc

2.8.3. Analog output channels

The analog expansion module QAIO 16/4-V has 4 analog voltage outputs. The out-

puts are permanently protected against short-circuiting, at a maximum short-circuit

current of 25 mA.

For each output, the connection points are also provided for the analog ground

(AGND) and the common earth (REF) besides the signal connections (OUT).

This means that earth shifts can be compensated for as long as the condition

REF

| <2 V is complied with for each output.

The SENSE connectors are connected directly to the earth of the associated ac-

tuator.

Note:

The SENSE line cannot be used alone as the feedback.

Output channel data

Output voltage, rated value +/- 10 V, floating

Output current max. 5 mA

Short-circuit protection permanent short-circuit protection

Kmax

25 mA

Transient time of DA converter < 10 µs

Slew rate > 8 V / µs

Resolution 11 bit + sign,

1 LSB = 4,883 mV, monotone

Precision in temp. range +/- 1 LSB; +/- 0,3 %

Load resistance min 2 kOhm

Capacitive load <1000 pF

Voltage output (basic circuit diagram)

2VF100065DG00.cdr