Saia-Burgess
Controls Ltd.
Hardware Manual for the PCD3 Series│Document 26/789; Version E 5│31.01.2005
Hardware
PCD3.W3x0
5-43
5
5.4.2 PCD3.W3x0, analogue inputs, 8 channels, 12 bit resolution
Application
Fast input modules for general use with 8 channels, each with 12 bit resolution.
Different variants for voltage 0...10V, current 0...20 mA and the use of different
resistance thermometers are available.
Module overview
Resolution *)
PCD3.W300:
Signals 0...10 V
2.442 mV
PCD3.W310:
Signals 0...20 mA
4.884 μA
PCD3.W340:
General purpose module
0...10V
2.442 mV
0...20 mA
4.884 μA
Pt/Ni 1000 (Default)
Pt1000:
-50...+400°C 0.14...0.24°C
Ni1000:
-50...+200°C 0.09...0.12°C
PCD3.W350:
Resistance thermometer
Pt/Ni 100
Pt100:
-50...+600°C 0.14...0.20°C
Ni100:
-50...+250°C 0.06...0.12°C
PCD3.W360:
Resistance thermometer
Pt 1000
(-50...+150°C) 0.07...0.09°C (resol. < 0.1°C)
Method of lineariation for temperature inputs: by software
*) Resolution = value of the least signifcant bit (LSB)
Technical data
Input ranges:
see above
Module overview
Galvanic separation:
no
Resolution (digital representa-
tion):
12 bits (0...4095)
Measuring principle:
Non-differential, voltage divider
Input resistance:
W300:
20 kΩ / 0.15%
W310:
125 Ω / 0.1%
W340:
U: 200 kΩ / I: 125Ω
W350:
not relevant
W360:
not relevant
Accuracy at 25°C:
W300, 310:
± 0.5%
W340, 350, 360:
± 0.3%
Repeating accuracy:
± 0.05%
Temperature error (0...+55°C):
± 0.2%
A/D conversion time:
< 10 μs
Overvoltage protection:
W340:
± 50 VDC (permanent)
W300 *):
+ 50 VDC (permanent)
Overcurrent protection:
W340:
± 40 mA (permanent)
W310 *):
+ 40 mA (permanent)
EMC protection:
yes
Time constant of input filter:
W300:
typically 10.5 ms
W310:
typically 12.4 ms
W340 V:
typically 7.8 ms
C:
typically 24.2 ms
T:
typically 24.2 ms
W350:
typically 16.9 ms
W360:
typically 16.9 ms
