SBC PCD2 Series - Page 245

Saia-Burgess Controls AG
Manual I/O-modules for PCD1 │ PCD2 series │ Document 27-600 – Release ENG09 │ 2019-05-01
6-102
I/O modules PCD3
PCD3.W525
6
Filters
● Inputs
 Therearetwofactorsusedtolterthecapturedvalues:
○ Thebasichardwarelterwithatimeconstantof2ms.Thislter
attenuates the input signal by 6 dB per order of magnitude at a
switching frequency of 80 Hz.
○ Thesoftwarealsohasane󰀨ect.Thisresultsinadelaytothecaptured
valueof2mswithanotchlterpropertyat500Hz,wherenosoftware-
basedlterwith50Hz/60Hzhasbeenselected.
 Wherea50Hz(60Hz)lterisused,thefrequencyofthenotchlteris
50Hz(60Hz);inthiscase,thedelayisalso2ms.
● Outputs
 Onlythehardware-basedlerwithatimeconstantof1msisactive.
Technical data
Inputs
General:
Resolution: 14 bit
Measurement type: di󰀨erential
Number of channels: 4
Galvanic separation of the Saia PCD
®
: yes, 500 V
Galvanic separation of external supply: yes, 500 V
Galvanic separation between channels: no
Type of connections: two cables per channel
Congurationofoperatingmode: using DIP switches
Accuracy at 25°C: ± 0.2% max.
Repeat accuracy: ± 0.05% max.
Temperature drift (0…55°C) max.: ± 70 ppm/°C
Overvoltage protection: ± 50 V min.
Overcurrent protection: ± 35 mA min.
Common mode max. voltage: ± 50 V min.
Common mode rejection: 70 dB min.
Filter:
Timeconstantforhardwarelter: 2 ms
Attenuationofsoftware-based50Hzlter: 40 dB min. between 49.5 and 50.5 Hz
Attenuationofsoftware-based60Hzlter: 40 dB min. between 59.5 and 60.5 Hz
Voltagemode:
Resolution range 0 … 10 V mode: 14Bit;0.61mVperLSB
Currentmode:
Current shunt resistance: 125 Ω
Resolution range 0 … 20 mA: 14Bit;1.22µA per LSB
Resolution range 4 … 20 mA: 13.7Bit;1.22µA per LSB
Temperature/resistancemode:
ResolutionforPt1000;range-50 … 400°C 0.1 °C
ResolutionforPt500;range-50 … 400°C 0.2 °C
ResolutionforNi1000;range-60 … 200 °C 0.1 °C
Resolutionforresistor;range0 … 2500 Ω 0,2 Ω
Shunt capacity for temp sensor / resistor: 2.5 mW max.