ABB RAIO-01, User Manual

Page: 16 / 28

Chapter 3 – Installation
16 RAIO-01 User’s manual
Input mode
selection
The operating mode of the analogue inputs can be
selected using the configuration DIP switch (S2) on the
circuit board of the module. The drive parameters must
be set accordingly.
In bipolar mode, the analogue inputs can handle
positive and negative signals. The resolution of the A/D
conversion is 11 data bits (+ 1 sign bit). The way the
drive interprets the negative range of the inputs
depends on the settings of the drive. See the
Firmware
Manual of the drive .
In unipolar mode (default), the analogue inputs can
handle positive signals only. The resolution of the A/D
conversion is 12 data bits.
DIP switch setting
Input signal type
Analogue input AI1 Analogue input AI2
±
0(4)…20 mA
±
0(2)…10 V
±0…2 V
0(4)…20 mA
0(2)…10 V
0…2 V
(Default)
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6
ON
1 2 3 4 5 6