Saia-Burgess Controls AG
Manual Manual PCD 1 / PCD 2 Series │ Document 26 / 737 EN22 │ 2013-11-26
5
Input/output (I/O) modules
5-51
Analogue input modules
5.8.1 PCD2.W10x, analogue inputs, 4 channels, 12 bit resolution
High-speed module for general use for recording analogue signals with a conversion
time of ≤ 30 µs and a resolution of 12 bits.
Module overview
PCD2.W100 4 channels for signals 0 … 10 V
Unipolar*): 0 V … +10 V or -10 V … 0 V
Bipolar*): -10 V … +10 V
Input resistance: >10 MΩ
PCD2.W105 4 channels for signals 0 … 20 mA
Unipolar*): 0 … +20 mA or -20 … 0 mA
Bipolar *): -20 mA … +20 mA
Circuit resistance (Rshunt): 100 Ω/0.1 %
*) Unipolar - bipolar, switchable with jumper
Technical data
Signal ranges see module overview
Galvanic separation no
Resolution (digital representation) 12 bits (0 … 4095)
Measuring principle differential
Conversion time ≤ 30 µs
Input resistance
W100: >10 MΩ W105: 100 Ω/0.1 %
Accuracy at 25 °C
(of measured value)
W100: ± 0.1 % + ± 1 LSB bipolar
W100: ± 0.05 % + ± 1 LSB unipolar
W105: ± 0.2 % + ± 1 LSB unip/bip.
Repeating accuracy ± 1 LSB
Common mode range (CMR)
W100: ± 11 V W105: ± 8 V
Common mode rejection (CMRR) > 70 dB
Temperature error (0 … +55 °C) W100: ± 0.2 % + ± 2 LSB
W105: ± 0.3 % + ± 2 LSB
Overvoltage protection (W100) ± 60 VDC (permanent)
Overcurrent protection (W105) ± 50 mA (permanent)
Burst protection
capacitive coupling (IEC 801-4)
± 1 kV, with unshielded cables
± 2 kV, with shielded cables
Time constant of input lter 3 ms
Internal current consumption:
(from +5 V bus)
45 mA
typ. 20 mA
Internal current consumption:
(from V+ bus)
15 mA
External current consumption: 0 mA
Terminals: Pluggable 10-pole screw terminal block
(4 405 4847 0), for wires up to 1.5 mm²
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