6
IQAN-XA2
3 Product description
Instruction book, IQAN- XA2
Proportional outputs
The XA2 module has six (6) double
proportional outputs
for controlling proportional
valves. These outputs can control six bi-directional valve sections or six single solenoid
devices (ie. proportional cartridge valves). The proportional outputs can be used in two
different modes. Either
Current mode
or
PWM mode
signals can be selected and the
parameters configured using IQAN software.
In both modes, the output applies battery voltage minus voltage drop during the on-
phase. The difference between COUT and PWMOUT is that for COUT there is closed
loop control of current, and for PWMOUT there is open control of current by
commanding a
modulation ratio
(MR%).
For flexibility these outputs may also be configured as up to six (6)
on/off outputs
and
up to twelve (12)
on/off intputs
. The proportional outputs, on/off outputs and on/off
inputs share positions, see below.
In order to increase the performance of proportional outputs when controlling
proportional valves, the
dither frequency
can be adjusted.
High power On/Off outputs
The XA2 module has six (6)
on/off outputs
that are high-side power outputs. These
outputs may not be configured as proportional, see below.
CAN related functions
The master uses the CAN-bus (CAN = Controller Area Network) to communicate with
the modules. The CAN-bus is a robust communication protocol that is widely used and
well proven within the automotive industry.
(6) double proportional outputs COUT-A thru COUT-F
or
(6) on/off outputs DOUT-G thru DOUT-L, each pair of return pins may then be used as (2) on/
off inputs, (12) total, DIN-I thru DIN-T.
(6) On/off outputs DOUT-A thru DOUT-F
