Kingfisher Plus+ Hardware Manual
10.1.3 AO-3 Specifications
AO-3 Analogue Output Module Specifications
Output Current Range
4 to 20 mA [default] or 0 to 20 mA
(loop current is supplied by module)
Outputs per Module 4
Output Power
Isolated 24 V
DC
/ 40 mA for outputs 1 & 2
Isolated 24 V
DC
/ 40 mA for outputs 3 & 4
Supply Voltage (nominal) +5 V
DC
and +12 V
DC
from backplane
Update Rate
250 ms (all channels)
Determined by I/O scan time and is application dependent
Resolution 12 bit (no sign bit)
Accuracy
± 0.2% @ 25 °C
± 0.5% @ -20 to +70 °C
Load Resistance 0 to 850 Ω
Load Capacitance 2000 pF maximum
Load Inductance 1 H maximum
Isolation
Analogue outputs 1 & 2 and analogue outputs 3 & 4 form two groups.
Each group is isolated from the other group and from the backplane
logic. There is no isolation between outputs 1 & 2 and no isolation
between outputs 3 & 4.
Transient voltage (Group to Group and Group to Logic): 5 kV.
Maximum working voltage in respect to system earth/ground must not
exceed SELV limits (42.4 V
PEAK
/ 60 V
DC
).
Operating Temperature -40 to +85 °C
Storage Temperature -40 to +85 °C
Operating Humidity 5 to 90 % RH (non-condensing)
Hot Swap
Yes. Module can be swapped while RTU is running. Hot swap will not
cause a Warm Start. Outputs will be restored within 2 seconds once
module is replaced.
Open Loop Detection
Yes. Monitors output circuit for failure (e.g. cable breakage) or if the load
is disconnected.
Note: when using the 0-20 mA range, Open Loop Detection cannot be
guaranteed on an output when set below 160 / 0.1 mA / 0.5%.
Hardware Manual Version 7.16
http://www.servelec-semaphore.com/
Page 147
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