Saia-Burgess Controls AG
Manual
Manual PCD 1 / PCD 2 Series
│ Document 26
/
737 E
N22 │ 2013-11-26
5
Input/output (I/O) modules
5-72
Analogue input modules with electricaly isolation
5.9.1 PCD2.W3x5, analogue inputs, 7 channels, 12 bit resolution, elect. isol.
Application
High-speed input module with galvanic separation of outputs to Saia PCD
®
bus, for
general use with 7 channels, each with 12 bit resolution. Different variants for voltage
0 … 10 V, -10 V … +10 V and current 0 … 20 mA are available.
Module overview
resolution *)
PCD2.W305:
Voltage 0 … 10 V
2.5 mV
PCD2.W315:
Current 0 …
20 mA
5
µ
A
PCD2.W325:
Voltage -10 … +10 V
5 mV
*) Resolution = value of least significant bit
(LSB)
Technical data
Input ranges:
see module overview
Galvanic separation:
500 V, galvanic separation of outputs to Saia PCD
®
,
channels themselves not separated
Resolution (digital representation):
12 bits (0 … 4095)
Measuring principle:
non-differential, single-ended
Input resistance:
W305:
13.5 kΩ / 0.1 %
W315:
120 Ω / 0.1 %
W325:
13.7
kΩ / 0.1 %
Accuracy at 25 °C
± 0.15 %
Repeating accuracy:
± 0.05 %
Temperature error (0 … +55 °C)
± 0.25 %
Conversion time A/D:
≤ 2 ms
Overvoltage protection:
W305:
± 40 V
DC
(permanent)
W325:
± 40 V
DC
(permanent)
Overcurrent protection:
W315:
± 35 mA (permanent)
EMC protection:
yes
Time constant of input filter:
Typically 2.4 ms
Internal current consumption:
(from +5 V bus)
< 60 mA
Internal current consumption:
(from V+ bus)
0 mA
External current consumption:
0 mA
Terminals:
Pluggable 14-pole cage spring terminal block
(4 405 5002 0), for wires up to 1.5 mm²
