BusWorks Model XT1533-000
4 CH Current 4 CH Digital I/O w/USB & Profinet
Acromag, Inc. Tel: 248-295-0880
- 11 -
http://www.acromag.com
- 11 -
http://www.acromag.com
Current Output Connections
(Requires Additional
Excitation at TB3)
The
XT1533
model can drive four
DC current outputs up to 22mA each
(0-20mA &
4-20mA range support). The maximum digital output current is 22.845mA (0-20mA
normalizing 0-30000), or 22.1901mA (0-20mA normalizing 0-20000 w/legacy
support). A 16-bit voltage DAC drives a voltage-to-current converter at each
channel and sources DC current to the load to output return (RTN). Outputs share
a common return connection and are not isolated channel-to-channel. Current
outputs require external analog excitation to operate. Outputs do include digital
and hardware current limiting. There are two analog excitation inputs, one for 12V
(10-15V), another for 24V (20-28V), and their outputs are diode-coupled internally
to allow redundant excitation. Do not connect 24V excitation to the 12V terminals,
or damage will result. Refer to the following figures for example DC current output
& excitation connections to this model.
WARNING:
In order to operate current outputs, you must additionally provide 12V or 24V excitation to the appropriate
analog Excitation terminals as shown above.
DO NOT CONNECT 24V EXCITATION TO THE 12V TERMINALS, OR DAMAGE
WILL RESULT.
You can optionally use the second analog excitation terminals to connect redundant backup excitation if
required, but you must observe the proper voltage level for the particular terminal.
