Dewetron DAQP-ACC-A, Technical Reference Manual

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10
DAQP-ACC-A
Sensor status
detection
5th order
lowpass filter
Butterworth
(4 steps)
1 nF
15 nF 10 R
20M 2M
Programmable
amplifier
IN+
GND
BNC
Hot
Shield
INPUT
CONNECTOR
DAQP-ACC-A module
RS-485(A)
RS-485(B)
+9V
+12 V
reserved
reserved
-9 V
±5 V out
GND
2
3
5
6
7
8
9
1
4
9-pin DSUB
OUTPUT
CONNECTOR
28 V
4/8 mA
0.5 Hz 5 Hz
Connect IEPE
®
sensor to BNC connector
Input gain and filter selection
The DAQP-ACC-A series module has two push buttons.
Gain button: Push the GAIN button several times until the LED displays the desired input
range.
Filter button: Push the FILTER button once - the LEDs will flash for approx. 3 seconds and
display the current filter setting.
Push the FILTER button within the three seconds several times until the
flashing LED displays the desired filter range.
Block diagram
The base block diagram of the DAQP-ACC-A gives an idea of the internal structure.
Sensor connection
IEPE
®
sensor connection
LED state
The DAQP-ACC-A series module has a set of 6 LEDs showing the current input range (constant active) and
filter range (flashing) setting. The ERR LED will displays shortcut and no sensor connected.